0001642545-24-000091 | 10-Q | XBRL Viewer

Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Total Stock-Based Compensation

Total stock-based compensation was as follows:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Cost of product revenue	$	1,372	$	954
Research and development	6,027		3,795
Sales and marketing	8,811		6,466
General and administrative	6,727		4,752
Total stock-based compensation	$	22,937	$	15,967

Schedule of Option Activity under 2009 Plan and 2019 Plan

Stock Options

Option activity under the 2009 Plan and 2019 Plan is set forth below:


	Number of Shares	Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Term	Aggregate Intrinsic Value
				(in years)	(in thousands)
Balance, December 31, 2023	880,809	$	5.90	3.60	$	162,653
Options exercised	(182,290)	4.11
Balance, March 31, 2024	698,519	$	6.36	3.70	$	167,047
Vested and exercisable, March 31, 2024	698,519	$	6.36	3.70	$	167,047

Schedule of RSU Activity under 2019 Plan

RSU and PRSU activity under the 2019 Plan is set forth below. Grant activity for all PRSUs is disclosed at target (100%):


	Restricted Stock Units			Performance-Based Restricted Stock Units
	Number of Shares	Weighted- Average Grant Date Fair Value Per Share		Number of Shares	Weighted- Average Grant Date Fair Value Per Share
Balance, December 31, 2023	1,167,022	$	171.55	67,008	$	175.09
RSUs and PRSUs granted	415,796	234.82		42,827	200.33
RSUs and PRSUs forfeited	(51,828)	199.57		(752)	267.56
RSUs and PRSUs vested	(276,920)	110.76		(35,278)	155.58
Balance, March 31, 2024	1,254,070	204.79		73,805	198.11

Stock-Based Compensation

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Total stock-based compensation was as follows:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Cost of product revenue	$	1,372	$	954
Research and development	6,027		3,795
Sales and marketing	8,811		6,466
General and administrative	6,727		4,752
Total stock-based compensation	$	22,937	$	15,967

Stock-based compensation of $0.2 million and $0.4 million was capitalized into inventory for the three months ended March 31, 2024 and 2023, respectively. Stock-based compensation capitalized into inventory is recognized as cost of product revenue when the related product is sold.

2009 Equity Incentive Plan and 2019 Equity Incentive Plan

On June 17, 2009, the Company adopted the 2009 Equity Incentive Plan (the “2009 Plan”) under which the Company’s board of directors (the “Board”) may issue stock options to employees, directors and consultants.

In February 2019, the Company adopted the 2019 Equity Incentive Plan (the “2019 Plan”), which became effective in connection with the Company’s initial public offering. As a result, effective as of March 6, 2019, the Company may not grant any additional awards under the 2009 Plan. The 2009 Plan will continue to govern outstanding equity awards granted thereunder. The Company initially reserved 2,000,430 shares of common stock for the issuance of a variety of awards under the 2019 Plan, including stock options, stock appreciation rights, awards of restricted stock and awards of restricted stock units (“RSUs”). In addition, the number of shares of common stock reserved for issuance under the 2019 Plan will automatically increase on the first day of January for a period of up to ten years, which commenced on January 1, 2020, in an amount equal to 3% of the total number of shares of the Company’s common stock outstanding on the last day of the preceding year, or a lesser number of shares determined by the Board. As of March 31, 2024, there were 4,220,428 shares of common stock available for issuance under the 2019 Plan.

Stock Options

Option activity under the 2009 Plan and 2019 Plan is set forth below:


	Number of Shares	Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Term	Aggregate Intrinsic Value
				(in years)	(in thousands)
Balance, December 31, 2023	880,809	$	5.90	3.60	$	162,653
Options exercised	(182,290)	4.11
Balance, March 31, 2024	698,519	$	6.36	3.70	$	167,047
Vested and exercisable, March 31, 2024	698,519	$	6.36	3.70	$	167,047

Restricted Stock Units

RSUs are share awards that entitle the holder to receive freely tradable shares of the Company’s common stock upon vesting. RSUs cannot be transferred, and the awards are subject to forfeiture if the holder’s employment terminates prior to the release of the vesting restrictions. RSUs generally vest over a four-year period with straight-line quarterly vesting with a one-year cliff or straight-line annual vesting, provided the employee remains continuously employed with the Company. The fair value of RSUs is equal to the closing price of the Company’s common stock on the grant date.

The Company granted performance-based restricted stock units (“PRSUs”) to certain key executives. The vesting of these PRSUs is dependent on the achievement of certain performance targets related to the Company’s compound annual growth rate of revenue over a two- or three-year performance period, provided the executives remain employed with the Company at the time of vesting. The number of PRSUs that vest will vary from 0% to 200% of the target which will be determined based on the level of performance attained for each performance period. The fair value of these PRSUs is equal to the closing price of the Company’s common stock on the grant date. Compensation cost for PRSUs is recognized over the requisite service period based on the expected achievement of performance targets.

RSU and PRSU activity under the 2019 Plan is set forth below. Grant activity for all PRSUs is disclosed at target (100%):


	Restricted Stock Units			Performance-Based Restricted Stock Units
	Number of Shares	Weighted- Average Grant Date Fair Value Per Share		Number of Shares	Weighted- Average Grant Date Fair Value Per Share
Balance, December 31, 2023	1,167,022	$	171.55	67,008	$	175.09
RSUs and PRSUs granted	415,796	234.82		42,827	200.33
RSUs and PRSUs forfeited	(51,828)	199.57		(752)	267.56
RSUs and PRSUs vested	(276,920)	110.76		(35,278)	155.58
Balance, March 31, 2024	1,254,070	204.79		73,805	198.11

Employee Stock Purchase Plan (ESPP)

In February 2019, the Company adopted the Employee Stock Purchase Plan (“ESPP”), which became effective as of March 6, 2019. The Company initially reserved 300,650 shares of the Company’s common stock for purchase under the ESPP. In addition, the number of shares of the Company's common stock reserved for issuance under the ESPP

automatically increases on the first day of January for a period of up to ten years, which commenced on January 1, 2020, in an amount equal to 1% of the total number of shares of the Company’s common stock outstanding on the last day of the preceding year, or a lesser number of shares determined by the Board.

Each offering to the employees to purchase stock under the ESPP begins on each September 1 and March 1 and ends on the following February 28 or 29 and August 31, respectively. On each purchase date, which falls on the last date of each offering period, ESPP participants will purchase shares of common stock at a price per share equal to 85% of the lesser of (1) the fair market value per share of the common stock on the offering date or (2) the fair market value of the common stock on the purchase date. The occurrence and duration of offering periods under the ESPP are subject to the determinations of the Compensation Committee of the Board, in its sole discretion.

The fair value of the ESPP shares is estimated using the Black-Scholes option pricing model. The Company recorded $0.7 million and $1.3 million of stock-based compensation expense related to the ESPP for the three months ended March 31, 2024 and 2023, respectively. At March 31, 2024, a total of 1,868,352 shares of common stock were available for issuance under the ESPP.

Financial Instruments and Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Apr. 11, 2023
Money market funds
Assets:
Cash equivalents, Fair Value	$ 85,006
Neovasc Inc.
Assets:
Contingent consideration liability			$ 9,307
Cash and Cash Equivalents \| U.S. treasury securities
Assets:
Short-term investments, fair value	49,825	$ 109,310
Cash and Cash Equivalents \| Money market funds
Assets:
Short-term investments, fair value	85,007	43,277
Short-Term Investments \| U.S. treasury securities
Assets:
Short-term investments, fair value	654,632	575,203
Short-Term Investments \| Commercial paper
Assets:
Short-term investments, fair value	37,518	46,054
Short-Term Investments \| Corporate bonds
Assets:
Short-term investments, fair value	34,555	20,073
Short-Term Investments \| US Government Agencies Debt Securities
Assets:
Short-term investments, fair value	14,947	14,946
Short-Term Investments \| Asset-Backed Securities
Assets:
Short-term investments, fair value	5,907	5,856
Recurring
Assets:
Total assets	882,391	814,719
Total liabilities	970,667	739,762
Recurring \| Contingent Consideration
Assets:
Obligations	7,659	9,307
Recurring \| Borrowings
Assets:
Obligations	963,008	730,455
Recurring \| Level 1
Assets:
Total assets	789,464	727,790
Total liabilities	0	0
Recurring \| Level 1 \| Contingent Consideration
Assets:
Obligations	0	0
Recurring \| Level 1 \| Borrowings
Assets:
Obligations	0	0
Recurring \| Level 2
Assets:
Total assets	92,927	86,929
Total liabilities	963,008	730,455
Recurring \| Level 2 \| Contingent Consideration
Assets:
Obligations	0	0
Recurring \| Level 2 \| Borrowings
Assets:
Obligations	963,008	730,455
Recurring \| Level 3
Assets:
Total assets	0	0
Total liabilities	7,659	9,307
Recurring \| Level 3 \| Contingent Consideration
Assets:
Obligations	7,659	9,307
Recurring \| Level 3 \| Borrowings
Assets:
Obligations	0	0
Recurring \| Cash and Cash Equivalents \| U.S. treasury securities
Assets:
Cash equivalents, Fair Value	49,825	109,310
Recurring \| Cash and Cash Equivalents \| Money market funds
Assets:
Cash equivalents, Fair Value	85,007	43,277
Recurring \| Cash and Cash Equivalents \| Level 1 \| U.S. treasury securities
Assets:
Cash equivalents, Fair Value	49,825	109,310
Recurring \| Cash and Cash Equivalents \| Level 1 \| Money market funds
Assets:
Cash equivalents, Fair Value	85,007	43,277
Recurring \| Cash and Cash Equivalents \| Level 2 \| U.S. treasury securities
Assets:
Cash equivalents, Fair Value	0	0
Recurring \| Cash and Cash Equivalents \| Level 2 \| Money market funds
Assets:
Cash equivalents, Fair Value	0	0
Recurring \| Cash and Cash Equivalents \| Level 3 \| U.S. treasury securities
Assets:
Cash equivalents, Fair Value	0	0
Recurring \| Cash and Cash Equivalents \| Level 3 \| Money market funds
Assets:
Cash equivalents, Fair Value	0	0
Recurring \| Short-Term Investments \| U.S. treasury securities
Assets:
Short-term investments, fair value	654,632	575,203
Recurring \| Short-Term Investments \| Commercial paper
Assets:
Short-term investments, fair value	37,518	46,054
Recurring \| Short-Term Investments \| Corporate bonds
Assets:
Short-term investments, fair value	34,555	20,073
Recurring \| Short-Term Investments \| US Government Agencies Debt Securities
Assets:
Short-term investments, fair value	14,947	14,946
Recurring \| Short-Term Investments \| Asset-Backed Securities
Assets:
Short-term investments, fair value	5,907	5,856
Recurring \| Short-Term Investments \| Level 1 \| U.S. treasury securities
Assets:
Short-term investments, fair value	654,632	575,203
Recurring \| Short-Term Investments \| Level 1 \| Commercial paper
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 1 \| Corporate bonds
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 1 \| US Government Agencies Debt Securities
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 1 \| Asset-Backed Securities
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 2 \| U.S. treasury securities
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 2 \| Commercial paper
Assets:
Short-term investments, fair value	37,518	46,054
Recurring \| Short-Term Investments \| Level 2 \| Corporate bonds
Assets:
Short-term investments, fair value	34,555	20,073
Recurring \| Short-Term Investments \| Level 2 \| US Government Agencies Debt Securities
Assets:
Short-term investments, fair value	14,947	14,946
Recurring \| Short-Term Investments \| Level 2 \| Asset-Backed Securities
Assets:
Short-term investments, fair value	5,907	5,856
Recurring \| Short-Term Investments \| Level 3 \| U.S. treasury securities
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 3 \| Commercial paper
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 3 \| Corporate bonds
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 3 \| US Government Agencies Debt Securities
Assets:
Short-term investments, fair value	0	0
Recurring \| Short-Term Investments \| Level 3 \| Asset-Backed Securities
Assets:
Short-term investments, fair value	$ 0	$ 0

Goodwill and intangible assets

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and intangible assets

6. Goodwill and intangible assets

Goodwill

The Company performs annual impairment reviews of goodwill during the fourth fiscal quarter or more frequently if required. The Company did not incur any goodwill impairment losses during the three months ended March 31, 2024.

Intangible assets

The following table presents details of the acquired intangible assets as of March 31, 2024 (in thousands, except useful life and estimated remaining useful life which are in years):


	Gross Carrying Amount		Accumulated Amortization		Impairment		Intangible Assets, Net		Useful Life	Estimated Remaining Useful Life
Customer relationships	$	2,900	$	564	$	—	$	2,336	5.0 years	4.0 years
Developed technology	61,200		2,976		—		58,224		20.0 years	19.0 years
In-process research and development	31,400		—		—		31,400		N/A	N/A
Total	$	95,500	$	3,540	$	—	$	91,960	19.3 years	18.3 years

Acquisition-related intangible assets included in the above table are finite-lived, other than in-process research and development which has an indefinite life and are carried at cost less accumulated amortization. Customer relationships and developed technology are amortized on a straight-line basis over their estimated lives, which approximates the pattern in which the economic benefits of the intangible assets are expected to be realized. Amortization expense was $0.9 million for the three months ended March 31, 2024, and was recorded to sales and marketing for customer relationships and to cost of revenue for developed technology.

The following table summarizes the estimated future amortization expense of intangible assets with finite lives as of March 31, 2024:


Years ending December 31,	(in thousands)
2024 (remainder)	$	2,743
2025	3,640
2026	3,640
2027	3,640
2028	3,219
Thereafter	43,678
Total estimated future amortization expense	$	60,560

Actual amortization expense to be reported in future periods could differ from these estimates as a result of asset impairments, acquisitions, or other facts and circumstances. The Company performs annual impairment reviews of its intangible assets during the fourth fiscal quarter or more frequently if business factors indicate. The Company did not have any indicators or incur any impairment losses related to its intangible assets during the three months ended March 31, 2024.

Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Lease, Cost

The Company recognizes rent expense for these operating leases on a straight-line basis over the lease period. The components of lease costs, which the Company includes in operating expenses in the condensed consolidated statements of operations and comprehensive income, were as follows:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Operating lease cost	$	1,444	$	1,211
Variable lease cost	267		300
Total lease cost	$	1,711	$	1,511

Schedule of Minimum Future Rental Payments

As of March 31, 2024, the maturities of the payments due under the Company’s operating lease liabilities were as follows:


Years ending December 31,	(in thousands)
2024 (remainder)	$	4,619
2025	6,700
2026	6,897
2027	7,076
2028	7,242
Thereafter	23,074
Total minimum lease payments	$	55,608
Less: imputed interest	(10,320)
Less: Lease incentive	(1,299)
Total lease liability	$	43,989
Less: current portion	(3,653)
Lease liability, noncurrent portion	$	40,336

Cash Equivalents and Short-Term Investments - Summary of Remaining Contractual Maturities for Available-for-sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Cash and Cash Equivalents [Abstract]
Money market funds	$ 134,832	$ 152,587
One year or less	736,694
Greater than one year and less than two years	60,691
Total	$ 882,391

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue:
Product revenue	$ 218,805	$ 161,066
Cost of revenue:
Cost of product revenue	28,207	21,066
Gross profit	190,598	140,000
Operating expenses:
Research and development	44,466	26,971
Sales and marketing	74,492	54,011
General and administrative	29,233	19,204
Total operating expenses	148,191	100,186
Income from operations	42,407	39,814
Income (loss) from equity method investment	713	(823)
Interest and Other Income	12,318	1,740
Interest expense	(2,943)	(636)
Other (expense) income, net	(2,496)	642
Net income before taxes	49,999	40,737
Income tax expense	(5,347)	1,612
Net income	55,346	39,125
Other comprehensive income (loss):
Unrealized (loss) gain on available-for-sale securities, net of tax	(402)	505
Net gain reclassified from accumulated other comprehensive income	0	(5)
Total comprehensive income	$ 54,944	$ 39,625
Net income per share
Basic (USD per share)	$ 1.48	$ 1.07
Diluted (USD per share)	$ 1.44	$ 1.03
Denominator:
Basic (in shares)	37,284,946	36,427,263
Diluted (in shares)	38,472,013	37,979,448
Type of Revenue [Extensible List]	Product [Member]	Product [Member]
Type of Cost, Good Or Service [Extensible List]	Product [Member]	Product [Member]

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

Supplemental Cash Flow Information

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated statements of cash flows:


	March 31,
	2024		2023
	(in thousands)
Cash and cash equivalents	$	281,674	$	280,932
Restricted cash	1,375		1,715
Total cash, cash equivalents, and restricted cash	$	283,049	$	282,647

Debt	3 Months Ended
Debt	Mar. 31, 2024
Debt Disclosure [Abstract]
Debt	9. Debt On October 19, 2022, the Company entered into a Credit Agreement (the “Credit Agreement”) with Wells Fargo Bank, National Association, as administrative agent, Wells Fargo Bank, National Association, as swingline lender and an issuing lender, Wells Fargo Securities, LLC and Silicon Valley Bank, as joint lead arrangers and joint bookrunners, Silicon Valley Bank, as syndication agent, and the several lenders party thereto. The Credit Agreement provides for a revolving credit facility in an aggregate principal amount of $175.0 million with the right to request increases to the revolving commitments (subject to certain conditions) of up to the greater of (x) $100.0 million or (y) the Company’s consolidated EBITDA for the four fiscal quarter period most recently ended prior to the date of such increase. Concurrent with entering into the Credit Agreement, the Company drew down $25.0 million thereunder. The Company repaid the $25.0 million drawn under the Credit Agreement on August 29, 2023. On March 16, 2023, the Company drew down an additional $80.0 million under the Credit Agreement. The Company repaid the $80.0 million drawn under the Credit Agreement on April 26, 2023. The revolving credit facility accrues for interest, at the election of the Company, at (A) the Base Rate (as defined below) plus a margin ranging from 0% to 1% depending on the Company’s Consolidated Total Net Leverage Ratio (as defined in the Credit Agreement) (which rate is currently 0%) or (B) the applicable secured overnight financing rate (“SOFR”) plus a margin from 1% to 2%, depending on the Company’s Consolidated Total Net Leverage Ratio (which rate is currently 1.8%). Base Rate means, at any time, the highest of (a) the Wells Fargo Bank, National Association’s announced prime rate, (b) the federal funds rate plus 0.5% and (c) Term SOFR for a one-month tenor in effect on such day plus 1%. The Credit Agreement matures on October 19, 2027. The interest rate was 7.3% as of August 29, 2023. The Company was not in violation of any covenants under the Credit Agreement as of March 31, 2024. The Company recorded interest expense of $0.1 million and $0.6 million for the three months ended March 31, 2024 and 2023, respectively. The interest expense recognized for the three months ended March 31, 2024 consists of an access fee to the credit facility during the three months ended March 31, 2024. The Company did not draw from the credit facility during the three months ended March 31, 2024.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 470
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//470/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

+ Details

Goodwill and intangible assets - Schedule of Finite and Indefinite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2023	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net		$ 91,960	$ 92,857
Neovasc Inc.
Finite-Lived Intangible Assets [Line Items]
Total intangibles, gross carrying amount		95,500
Accumulated Amortization		3,540
Impairment	$ 0
Intangible Assets, Net		60,560
Intangible assets, net		$ 91,960
Useful Life		19 years 3 months 18 days
Estimated Remaining Useful Life		18 years 3 months 18 days
In-process research and development \| Neovasc Inc.
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		$ 31,400
Customer relationships \| Neovasc Inc.
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		2,900
Accumulated Amortization		564
Impairment	0
Intangible Assets, Net		$ 2,336
Useful Life		5 years
Estimated Remaining Useful Life		4 years
Developed technology \| Neovasc Inc.
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 61,200
Accumulated Amortization		2,976
Impairment	$ 0
Intangible Assets, Net		$ 58,224
Useful Life		20 years
Estimated Remaining Useful Life		19 years

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net income (loss)	$ 55,346	$ 39,125

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Name Accounting Standards Codification
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+ Details

Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Components of Basic and Diluted Net Income (Loss) Per Share

The components of basic and diluted net income per share were as follows (in thousands, except share and per share amounts):


	Three Months Ended March 31,
	2024		2023
Numerator:
Net income	$	55,346	$	39,125
Denominator:
Basic:
Weighted average number of common shares outstanding - basic	37,284,946		36,427,263
Diluted:
Weighted average number of common shares outstanding - basic	37,284,946		36,427,263
Dilutive effect of outstanding common stock options	753,786		1,039,985
Dilutive effect of restricted stock units	429,869		510,340
Dilutive effect of common stock pursuant to employee stock purchase plan	3,412		1,860
Weighted average number of common shares outstanding - diluted	38,472,013		37,979,448
Net income per share:
Basic	$	1.48	$	1.07
Diluted	$	1.44	$	1.03

Summary of Outstanding Potentially Dilutive Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share

The total number of potential shares excluded from the calculation of diluted net income per share are as follows:


	Three Months Ended March 31,
	2024	2023
Restricted stock units	66,380	100,755
Employee stock purchase plan	5,770	—
Capped call options	333,409	—
Total	405,559	100,755

Revenue - Schedule of Product Revenue Based on Product Line (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation Of Revenue [Line Items]
Product revenue	$ 218,805	$ 161,066
Coronary
Disaggregation Of Revenue [Line Items]
Product revenue	164,526	113,875
Peripheral
Disaggregation Of Revenue [Line Items]
Product revenue	51,843	46,130
Other
Disaggregation Of Revenue [Line Items]
Product revenue	599	1,061
Reducer
Disaggregation Of Revenue [Line Items]
Product revenue	$ 1,837	$ 0

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Balance Sheet Components

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Balance Sheet Components

Inventory

Inventory consists of the following:


	March 31, 2024		December 31, 2023
	(in thousands)
Raw materials	$	28,715	$	25,670
Work in progress	22,604		16,499
Finished goods	59,896		65,418
Total inventory	$	111,215	$	107,587

Accrued Liabilities

Accrued liabilities consist of the following:


	March 31, 2024		December 31, 2023
	(in thousands)
Employee compensation	$	34,076	$	49,706
Professional services	10,972		6,269
Excise, sales, income and other taxes	9,532		9,507
Asset purchases	9,054		7,788
Research and development costs	7,477		8,122
Sales and marketing	3,334		3,495
Other	4,393		6,809
Total accrued liabilities	$	78,838	$	91,696

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the SEC regarding interim financial reporting.

The unaudited condensed consolidated financial statements have been prepared on the same basis as the Company’s audited consolidated financial statements and related notes included in the 2023 Annual Report and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary to present fairly the Company’s consolidated financial position, results of operations and cash flows. The results of operations for the three months ended March 31, 2024 are not necessarily indicative of the results to be expected for the year ending December 31, 2024 or for any other future annual or interim period. The condensed consolidated balance sheet as of December 31, 2023 included herein was derived from the audited financial statements as of that date. The unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and related notes included in the 2023 Annual Report.

There have been no material changes in the Company’s significant accounting policies for the three months ended March 31, 2024 as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023 that has been filed with the SEC.

Supplemental Cash Flow Information

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed consolidated statements of cash flows:


	March 31,
	2024		2023
	(in thousands)
Cash and cash equivalents	$	281,674	$	280,932
Restricted cash	1,375		1,715
Total cash, cash equivalents, and restricted cash	$	283,049	$	282,647

Business Combination (Tables)

3 Months Ended

Mar. 31, 2024

Business Combination and Asset Acquisition [Abstract]

Schedule of Business Acquisitions, by Acquisition

The following table summarizes the purchase price consideration for Neovasc:


Purchase Price	(in thousands)
Cash transferred	$	112,129
Contingent consideration liability	9,307
Total	$	121,436

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The following table summarizes the preliminary fair values of assets acquired and liabilities assumed through the Company’s Neovasc acquisition at the acquisition date based on management’s best estimates and assumptions as of the reporting date:


Purchase Price	(in thousands)
Cash and cash equivalents	$	17,273
Accounts receivable, net	1,345
Inventory	918
Prepaid expenses and other current assets	841
Operating lease right-of-use assets	310
Property and equipment	156
Intangible assets	95,500
Other assets	502
Total identifiable assets acquired	116,845
Accounts payable	3,334
Accrued liabilities	4,082
Lease liability, current portion	253
Lease liability, noncurrent portion	64
Deferred tax liabilities	10,964
Other liabilities	16,280
Total liabilities assumed	34,977

Net identifiable assets acquired	81,868
Goodwill	39,568
Total purchase price	$	121,436

Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination

The fair value of the intangible assets acquired as of the acquisition date and, the method used to value these assets as well as the estimated economic lives for amortizable intangible assets were as follows (in thousands, except estimated useful life which is in years):

Fair value

Estimated useful life

Valuation method

Customer relationships

2,900

5.0 years

Avoided cost / lost profit

Developed technology

61,200

20.0 years

Multi-period excess earnings

In-process research and development

31,400

N/A

Multi-period excess earnings

Total

95,500

Business Combination - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Apr. 11, 2023	Mar. 31, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Goodwill		$ 39,568	$ 39,568
Neovasc Inc.
Business Acquisition [Line Items]
Business Acquisition, Share Price	$ 27.25
Business Combination, Acquisition Related Costs		6,900
Business Combination, Consideration Transferred	$ 121,436
Cash transferred	112,129
Contingent consideration liability	9,307
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High		47,000
Goodwill	39,568	39,600
Deferred tax liabilities	$ 10,964	$ 11,000
Neovasc Inc. \| June 30, 2026 Milestone
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Per Share	$ 12.00
Neovasc Inc. \| December 31, 2026 Milestone
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Per Share	8.00
Neovasc Inc. \| December 31, 2027 Milestone
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Per Share	$ 4.00

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 281,674	$ 328,422
Short-term investments	747,559	662,132
Accounts receivable, net	124,440	114,552
Inventory	111,215	107,587
Prepaid expenses and other current assets	10,462	12,567
Total current assets	1,275,350	1,225,260
Operating lease right-of-use assets	34,919	29,707
Property and equipment, net	78,693	68,923
Equity method investment	2,356	1,643
Intangible assets, net	91,960	92,857
Goodwill	39,568	39,568
Deferred tax assets	111,900	99,169
Other assets	9,001	9,436
TOTAL ASSETS	1,643,747	1,566,563
CURRENT LIABILITIES:
Accounts payable	9,843	8,868
Accrued liabilities	78,838	91,696
Lease liability, current portion	3,653	3,641
Total current liabilities	92,334	104,205
Lease liability, noncurrent portion	40,336	35,103
Convertible Debt, Noncurrent	732,810	731,863
Related party contract liability, noncurrent portion	12,273	12,273
Deferred tax liabilities	3,609	3,609
Other liabilities	7,659	9,307
TOTAL LIABILITIES	891,990	897,886
STOCKHOLDERS’ EQUITY:
Preferred stock	0	0
Common stock	38	37
Additional paid-in capital	586,017	557,882
Accumulated other comprehensive (loss) income	(109)	293
Retained earnings	165,811	110,465
TOTAL STOCKHOLDERS’ EQUITY	751,757	668,677
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	1,643,747	1,566,563
Long-Term Income Tax Liability	$ 2,969	$ 1,526

Subsequent Events (Details)	Apr. 04, 2024 $ / shares
Subsequent Event
Subsequent Event [Line Items]
Common stock, par value (in dollars per share)	$ 335.00

Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Beginning balance, shares (in shares) at Dec. 31, 2022		36,235,546,000
Beginning balance at Dec. 31, 2022	$ 511,316	$ 36	$ 548,960	$ (867)	$ (36,813)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)		77,230,000
Exercise of stock options	320	$ 1	319
Unrealized gain (loss) on available-for-sale securities, net of tax	505			505
Net gain reclassified from accumulated other comprehensive income	(5)			(5)
Issuance of common stock under employee stock purchase plan (in shares)		19,124,000
Issuance of common stock under employee stock purchase plan	3,092		3,092
Issuance of common stock in connection with vesting of restricted stock (in shares)		257,624,000
Taxes withheld on net settled vesting of restricted stock units (in shares)		(19,000)
Taxes withheld on net settled vesting of restricted stock units	(3)		(3)
Stock-based compensation	16,337		16,337
Net income	39,125				39,125
Ending balance, shares (in shares) at Mar. 31, 2023		36,589,505,000
Ending balance at Mar. 31, 2023	570,687	$ 37	568,705	(367)	2,312
Beginning balance, shares (in shares) at Dec. 31, 2023		36,990,700,000
Beginning balance at Dec. 31, 2023	$ 668,677	$ 37	557,882	293	110,465
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)	182,290,000	182,290,000
Exercise of stock options	$ 750	$ 1	749
Unrealized gain (loss) on available-for-sale securities, net of tax	(402)			(402)
Net gain reclassified from accumulated other comprehensive income	0
Issuance of common stock under employee stock purchase plan (in shares)		22,576,000
Issuance of common stock under employee stock purchase plan	4,269		4,269
Issuance of common stock in connection with vesting of restricted stock (in shares)		312,198,000
Taxes withheld on net settled vesting of restricted stock units (in shares)		31,000
Taxes withheld on net settled vesting of restricted stock units	(8)		(8)
Stock-based compensation	23,125		23,125
Net income	55,346				55,346
Ending balance, shares (in shares) at Mar. 31, 2024		37,507,733,000
Ending balance at Mar. 31, 2024	$ 751,757	$ 38	$ 586,017	$ (109)	$ 165,811

Stock-Based Compensation - Schedule of Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2024	Sep. 30, 2023	Dec. 31, 2023
Number of Shares
Balance beginning of period (in shares)	880,809,000
Options exercised (in shares)	(182,290,000)
Balance end of period (in shares)	698,519,000
Vested and exercisable shares (in shares)	698,519,000
Weighted- Average Exercise Price Per Share
Beginning balance of period (USD per share)	$ 5,900
Options exercised (USD per share)	4,110
Ending balance of period (USD per share)	6,360
Vested and exercisable shares (USD per share)	$ 6,360
Weighted- Average Remaining Term
Balance (USD per share)	3 years 8 months 12 days	3 years 7 months 6 days
Vested and exercisable, March 31, 2024	3 years 8 months 12 days
Aggregate Intrinsic Value
Balance	$ 167,047		$ 162,653
Vested and exercisable, March 31, 2024	$ 167,047

Business Combination

3 Months Ended

Mar. 31, 2024

Business Combination and Asset Acquisition [Abstract]

Business Combination

5. Business Combination

Neovasc Inc.

On January 16, 2023, the Company entered into a definitive agreement to acquire Neovasc, a company focused on the minimally invasive treatment of refractory angina. On April 11, 2023, the closing conditions were met and the transaction was consummated. Upon the closing of the transaction, the Company acquired all of Neovasc’s issued and outstanding common stock equity for a cash payment of $27.25 per share. Subsequent to the closing of the acquisition of Neovasc, the Company incurred $6.9 million of buyer related transaction costs in the year ended December 31, 2023, which were recorded as general and administrative expenses.

The purchase price consideration for the acquisition totaled $121.4 million, which was comprised of cash paid of $112.1 million to the selling shareholders, and the estimated fair value of the contingent consideration liability in the amount of $9.3 million.

The contingent consideration liability consisted of estimated amounts in relation to a contingent value right (a “CVR”) entitling the holders of Neovasc common stock and eligible equity awards to receive an additional cash payment of up to $12.00 per share or per share underlying an eligible equity award (equivalent to a maximum cash payment of $47.0 million) contingent on the attainment of a milestone. The milestone is defined as the final approval by the United States Food and Drug Administration (“FDA”) of the premarket approval application for the Reducer product for the treatment of angina. The milestone achievement timeline and respective payment per share ranges from $12.00 per CVR if the milestone is achieved on or prior to June 30, 2026, $8.00 per CVR if the milestone is achieved between July 1, 2026 and December 31, 2026 and $4.00 per CVR if the milestone is achieved between January 1, 2027 and December 31, 2027. The Company estimated the fair value of the contingent consideration liability using the probability-weighted discounted cash flow method based on the probability of achieving the milestone on each specified milestone date and consequently calculated the fair value of the CVR in the amount of $9.3 million as of the acquisition date.

The material factors that may impact the fair value of the contingent consideration are (i) the number of diluted shares outstanding as of the acquisition date that are eligible for the CVR, (ii) the probabilities and timing of achievement of the milestone, and (iii) discount rates, all of which are unobservable Level 3 inputs not supported by market activity. Significant changes in any of these inputs may result in a significant change in fair value, which is estimated at each reporting date with changes reflected as general and administrative expense.

The following table summarizes the purchase price consideration for Neovasc:


Purchase Price	(in thousands)
Cash transferred	$	112,129
Contingent consideration liability	9,307
Total	$	121,436

Assets acquired and liabilities assumed are recorded based on valuations derived from estimated fair value assessments and Level 3 inputs and assumptions used by the Company. While the Company believes that its estimates and assumptions underlying the valuations are reasonable, different estimates and assumptions could result in different valuations assigned to the individual assets acquired and liabilities assumed, and the residual amount of goodwill. The following table summarizes the preliminary fair values of assets acquired and liabilities assumed through the Company’s Neovasc acquisition at the acquisition date based on management’s best estimates and assumptions as of the reporting date:


Purchase Price	(in thousands)
Cash and cash equivalents	$	17,273
Accounts receivable, net	1,345
Inventory	918
Prepaid expenses and other current assets	841
Operating lease right-of-use assets	310
Property and equipment	156
Intangible assets	95,500
Other assets	502
Total identifiable assets acquired	116,845
Accounts payable	3,334
Accrued liabilities	4,082
Lease liability, current portion	253
Lease liability, noncurrent portion	64
Deferred tax liabilities	10,964
Other liabilities	16,280
Total liabilities assumed	34,977

Net identifiable assets acquired	81,868
Goodwill	39,568
Total purchase price	$	121,436

The purchase price allocation for the acquisition is preliminary and subject to revision as additional information about fair value of assets acquired and liabilities assumed becomes available, primarily related to the Company’s deferred tax liability and the related impact to goodwill. In the fourth quarter of 2023, the Company recorded adjustments to the amounts recorded as of the second quarter of 2023 that represented immaterial adjustments to the liabilities assumed. As of March 31, 2024, there were no additional changes to the preliminary allocation of the purchase consideration.

The Company measured the identifiable assets and liabilities assumed at their acquisition date fair values separately from goodwill. The intangible assets acquired are the developed technology related to Neovasc’s Reducer, in-process research and development for its Reducer technology, and Neovasc’s customer relationships in place at the time of acquisition. The fair value of the intangible assets acquired as of the acquisition date and, the method used to value these assets as well as the estimated economic lives for amortizable intangible assets were as follows (in thousands, except estimated useful life which is in years):

Fair value

Estimated useful life

Valuation method

Customer relationships

2,900

5.0 years

Avoided cost / lost profit

Developed technology

61,200

20.0 years

Multi-period excess earnings

In-process research and development

31,400

N/A

Multi-period excess earnings

Total

95,500

Goodwill represents the excess of the purchase price over the fair value of the net assets acquired. The acquisition of Neovasc resulted in the recognition of $39.6 million of goodwill which the Company believes relates primarily to the anticipated benefits of synergies created through the acquisition and assembled workforce.

The intangible assets and goodwill created as a result of the acquisition of Neovasc are not deductible for tax purposes. As such, the Company recorded deferred tax liabilities of $11.0 million related to the intangible assets in connection with the Company’s acquisition of Neovasc.

Stock-Based Compensation - Schedule of RSU Activity (Details)	3 Months Ended
	Mar. 31, 2024 $ / shares shares
Restricted Stock Units
Number of Shares
Beginning balance of period (in shares) \| shares	1,167,022,000
RSUs granted (in shares) \| shares	415,796,000
RSUs forfeited (in shares) \| shares	(51,828,000)
RSUs vested (in shares) \| shares	(276,920,000)
Ending balance of period (in shares) \| shares	1,254,070,000
Weighted-Average Grant Date Fair Value Per Share
Beginning balance of period (USD per share) \| $ / shares	$ 171,550
RSUs granted (USD per share) \| $ / shares	234,820
RSUs forfeited (USD per share) \| $ / shares	199,570
RSUs vested (USD per share) \| $ / shares	110,760
Ending balance of period (USD per share) \| $ / shares	$ 204,790
Performance-Based Restricted Stock Units
Number of Shares
Beginning balance of period (in shares) \| shares	67,008,000
RSUs granted (in shares) \| shares	42,827,000
RSUs forfeited (in shares) \| shares	(752,000)
RSUs vested (in shares) \| shares	(35,278,000)
Ending balance of period (in shares) \| shares	73,805,000
Weighted-Average Grant Date Fair Value Per Share
Beginning balance of period (USD per share) \| $ / shares	$ 175,090.00
RSUs granted (USD per share) \| $ / shares	200,330
RSUs forfeited (USD per share) \| $ / shares	267,560
RSUs vested (USD per share) \| $ / shares	155,580
Ending balance of period (USD per share) \| $ / shares	$ 198,110

Cash Equivalents and Short-Term Investments

3 Months Ended

Mar. 31, 2024

Cash and Cash Equivalents [Abstract]

Cash Equivalents and Short-Term Investments

4. Cash Equivalents and Short-Term Investments

The following is a summary of the Company’s cash equivalents and short-term investments:


	March 31, 2024
	Amortized Cost Basis		Unrealized Gains		Unrealized Losses		Fair Value
	(in thousands)
Cash equivalents:
Money market funds	$	85,007	$	—	$	—	$	85,007
U.S. Treasury securities	49,826		—		(1)		49,825
Marketable securities:
U.S. Treasury securities	654,768		16		(152)		654,632
Commercial paper	37,506		18		(6)		37,518
Corporate bonds	34,600		7		(52)		34,555
U.S. agency securities	14,962		5		(20)		14,947
Asset-backed securities	5,865		43		(1)		5,907
Total	$	882,534	$	89	$	(232)	$	882,391
Reported as:
Cash equivalents							$	134,832
Short-term investments							747,559
Total							$	882,391


	December 31, 2023
	Amortized Cost Basis		Unrealized Gains		Unrealized Losses		Fair Value
	(in thousands)
Cash equivalents:
Money market funds	$	43,277	$	—	$	—	$	43,277
U.S. Treasury securities	109,292		18		—		109,310
Marketable securities:
U.S. Treasury securities	575,008		233		(38)		575,203
Commercial paper	46,015		52		(13)		46,054
Corporate bonds	19,995		86		(8)		20,073
U.S. agency securities	14,949		16		(19)		14,946
Asset-backed securities	5,792		64		—		5,856
Total	$	814,328	$	469	$	(78)	$	814,719
Reported as:
Cash equivalents							$	152,587
Short-term investments							662,132
Total							$	814,719

There were $564.1 million and $45.9 million of investments in unrealized loss positions of $0.2 million and $0.1 million as of March 31, 2024 and December 31, 2023, respectively. During the three months ended March 31, 2024 and 2023, the Company did not record any impairment charges on its available-for-sale securities. Based on the Company’s procedures under the expected credit loss model, including an assessment of unrealized losses on the portfolio, the Company concluded that the unrealized losses for its marketable securities were not attributable to credit, and therefore, an allowance for credit losses for these securities has not been recorded as of March 31, 2024 and December 31, 2023. Also,

based on the scheduled maturities of the investments, the Company was more likely than not to hold these investments for a period of time sufficient for a recovery of the Company’s cost basis.

The remaining contractual maturities of the Company’s cash equivalents and short-term investments were as follows:


	March 31, 2024
	Fair Value
	(in thousands)
Money market funds	$	85,006
One year or less	736,694
Greater than one year and less than two years	60,691
Total	$	882,391

Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Inventory

Inventory consists of the following:


	March 31, 2024		December 31, 2023
	(in thousands)
Raw materials	$	28,715	$	25,670
Work in progress	22,604		16,499
Finished goods	59,896		65,418
Total inventory	$	111,215	$	107,587

Schedule of Accrued Liabilities

Accrued liabilities consist of the following:


	March 31, 2024		December 31, 2023
	(in thousands)
Employee compensation	$	34,076	$	49,706
Professional services	10,972		6,269
Excise, sales, income and other taxes	9,532		9,507
Asset purchases	9,054		7,788
Research and development costs	7,477		8,122
Sales and marketing	3,334		3,495
Other	4,393		6,809
Total accrued liabilities	$	78,838	$	91,696

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Income Tax Disclosure	15. Income Taxes On a quarterly basis, the Company provides for income taxes based upon an estimated annual effective income tax rate, adjusted for discrete items. The Company recognized income tax benefit of $5.3 million and tax expense of $1.6 million for the three months ended March 31, 2024 and 2023, respectively, representing an effective tax rate of (10.69)% and 3.96%, respectively. For the three months ended March 31, 2024, the effective tax rate differed from the U.S. federal statutory rate primarily due to stock-based compensation for tax purposes. For the three months ended March 31, 2023, the effective tax rate differed from the U.S. federal statutory rate primarily due to the stock-based compensation for tax purposes and research credits. The Company’s effective tax rate may be subject to fluctuation due to several factors, including the Company’s ability to accurately predict the pre-tax earnings in the various jurisdictions, valuation allowances against deferred tax assets, the recognition or de-recognition of tax benefits related to uncertain tax positions and the effects of tax law changes.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//740/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-14

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-21

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 270
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482526/740-270-50-1

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-17

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479360/740-10-S99-2

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482603/740-30-50-2

+ Details

Financial Instruments and Fair Value Measurements - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Contingent Consideration $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of the period	$ 9,307
Decrease in fair value	(1,648)
Balance, end of the period	$ 7,659

Business Combination - Assets Acquired, Liabilities Assumed (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Apr. 11, 2023
Business Acquisition [Line Items]
Goodwill	$ 39,568	$ 39,568
Neovasc Inc.
Business Acquisition [Line Items]
Cash and cash equivalents			$ 17,273
Accounts receivable, net			1,345
Inventory			918
Prepaid expenses and other current assets			841
Operating lease right-of-use assets			310
Property and equipment			156
Intangible assets	95,500		95,500
Other assets			502
Total identifiable assets acquired			116,845
Accounts payable			3,334
Accrued liabilities			4,082
Lease liability, current portion			253
Lease liability, noncurrent portion			64
Deferred tax liabilities	11,000		10,964
Other liabilities			16,280
Total liabilities assumed			34,977
Net identifiable assets acquired			81,868
Goodwill	$ 39,600		39,568
Total purchase price			$ 121,436

Debt - Additional Information (Details) - USD ($)					3 Months Ended
Debt - Additional Information (Details) - USD ($)	Aug. 29, 2023	Apr. 26, 2023	Mar. 16, 2023	Oct. 19, 2022	Mar. 31, 2024	Mar. 31, 2023
Debt Instrument [Line Items]
Interest Expense					$ 2,943,000	$ 636,000
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity				$ 175,000,000.0
Incremental revolving commitments, maximum				100,000,000.0
Proceeds of supplemental term loan			$ 80,000,000.0	$ 25,000,000.0
Line of Credit Facility, Interest Rate at Period End					7.30%
Interest Expense					$ 100,000	$ 600,000
Secured Overnight Financing Rate (SOFR) \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt interest rate basis				1.00%
Fed Funds Effective Rate Overnight Index Swap Rate \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt interest rate basis				0.50%
Minimum \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt interest rate basis				0.00%
Minimum \| Base Rate \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt interest rate basis				0.00%
Minimum \| Secured Overnight Financing Rate (SOFR) \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt interest rate basis				1.00%
Maximum \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt interest rate basis				1.80%
Maximum \| Base Rate \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt interest rate basis				1.00%
Maximum \| Secured Overnight Financing Rate (SOFR) \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt interest rate basis				2.00%
Loan and Security Agreement
Debt Instrument [Line Items]
Debt extinguished		$ 80,000,000.0
Repayments of Debt	$ 25,000,000.0

Financial Instruments and Fair Value Measurements - Narrative (Details) $ in Millions	Mar. 31, 2024 USD ($)
Convertible Senior Notes Due 2028
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Convertible Debt	$ 963.0

Revenue (Tables)

3 Months Ended

Mar. 31, 2024

Disaggregation of Revenue [Abstract]

Schedule of Product Revenue Based on Product Line and Location

The following table represents the Company’s product revenue based on product line:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Coronary	$	164,526	$	113,875
Peripheral	51,843		46,130
Reducer	1,837		—
Other	599		1,061
Product revenue	$	218,805	$	161,066

The following table represents the Company’s product revenue based on the location to which the product is shipped:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
United States	$	175,532	$	131,623
Europe	26,262		16,234
All other countries	17,011		13,209
Product revenue	$	218,805	$	161,066

Financial Instruments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value

The following tables summarize the Company’s financial assets and liabilities measured at fair value within the fair value hierarchy:


	March 31, 2024
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	85,007	$	—	$	—	$	85,007
U.S. treasury securities	49,825		—		—		49,825
Marketable securities:
U.S. treasury securities	654,632		—		—		654,632
Commercial paper	—		37,518		—		37,518
Corporate bonds	—		34,555		—		34,555
U.S. agency securities	—		14,947		—		14,947
Asset-backed securities	—		5,907		—		5,907
Total assets	$	789,464	$	92,927	$	—	$	882,391
Liabilities:
Contingent consideration liability	$	—	$	—	$	7,659	$	7,659
Convertible debt	—		963,008		—		963,008
Total liabilities	$	—	$	963,008	$	7,659	$	970,667


	December 31, 2023
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	43,277	$	—	$	—	$	43,277
U.S. treasury securities	109,310		—		—		109,310
Marketable securities:
U.S. treasury securities	575,203		—		—		575,203
Commercial paper	—		46,054		—		46,054
Corporate bonds	—		20,073		—		20,073
U.S. agency securities	—		14,946		—		14,946
Asset-backed securities	$	—	$	5,856	$	—	$	5,856
Total assets	$	727,790	$	86,929	$	—	$	814,719
Liabilities:
Contingent consideration liability	$	—	$	—	$	9,307	$	9,307
Convertible debt	—		730,455		—		730,455
Total liabilities	$	—	$	730,455	$	9,307	$	739,762

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The following table presents a reconciliation of the contingent consideration liability classified as a Level 3 financial instrument for the three months ended March 31, 2024. See Note 5 “Business Combination” for information regarding existing contingent consideration liabilities as of March 31, 2024.


	Three Months Ended March 31, 2024
	(in thousands)
Balance, beginning of the period	$	9,307
Decrease in fair value	(1,648)
Balance, end of the period	$	7,659

Goodwill and intangible assets - Future Amortization Expense (Details) - Neovasc Inc. $ in Thousands	Mar. 31, 2024 USD ($)
Finite-Lived Intangible Assets [Line Items]
2024 (remainder)	$ 2,743
2025	3,640
2026	3,640
2027	3,640
2028	3,219
Thereafter	43,678
Intangible Assets, Net	$ 60,560

Commitments and Contingencies - Schedule of Minimum Future Rental Payments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Operating Lease Liabilities Payments Due [Abstract]
2023 (remainder of year)	$ 4,619
2025	6,700
2026	6,897
2027	7,076
2028	7,242
Thereafter	23,074
Total minimum lease payments	55,608
Less: imputed interest	(10,320)
Lessee, Operating Lease, Lease Incentive	(1,299)
Total lease liability	43,989
Lease liability, current portion	(3,653)	$ (3,641)
Lease liability, noncurrent portion	$ 40,336	$ 35,103

Cash Equivalents and Short-Term Investments - Summary of Cash Equivalents and Short-Term Investments (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Cash And Cash Equivalents [Line Items]
Cash equivalents and short-term investments, amortized cost basis	$ 882,534,000	$ 814,328,000
Unrealized Gains	89,000	469,000
Unrealized Losses	(232,000)	(78,000)
Cash equivalents and short-term investments, fair value	882,391,000	814,719,000
Cash equivalents	134,832,000	152,587,000
Short-term investments	747,559,000	662,132,000
U.S. treasury securities \| Short-Term Investments
Cash And Cash Equivalents [Line Items]
Short-term investments, amortized cost basis	654,768,000	575,008,000
Unrealized Gains	16,000	233,000
Unrealized Losses	(152,000)	(38,000)
Short-term investments, fair value	654,632,000	575,203,000
U.S. treasury securities \| Short-Term Investments \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	654,632,000	575,203,000
U.S. treasury securities \| Short-Term Investments \| Level 1 \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	654,632,000	575,203,000
U.S. treasury securities \| Cash and Cash Equivalents
Cash And Cash Equivalents [Line Items]
Short-term investments, amortized cost basis	49,826,000	109,292,000
Unrealized Gains	0	18,000
Unrealized Losses	(1,000)	0
Short-term investments, fair value	49,825,000	109,310,000
Money market funds \| Cash and Cash Equivalents
Cash And Cash Equivalents [Line Items]
Short-term investments, amortized cost basis	85,007,000	43,277,000
Unrealized Gains	0	0
Unrealized Losses	0	0
Short-term investments, fair value	85,007,000	43,277,000
Commercial paper \| Short-Term Investments
Cash And Cash Equivalents [Line Items]
Short-term investments, amortized cost basis	37,506,000	46,015,000
Unrealized Gains	18,000	52,000
Unrealized Losses	(6,000)	(13,000)
Short-term investments, fair value	37,518,000	46,054,000
Commercial paper \| Short-Term Investments \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	37,518,000	46,054,000
Commercial paper \| Short-Term Investments \| Level 1 \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	0	0
Corporate Bond Securities \| Short-Term Investments
Cash And Cash Equivalents [Line Items]
Short-term investments, amortized cost basis	34,600,000	19,995,000
Unrealized Gains	7,000	86,000
Unrealized Losses	(52,000)	(8,000)
Short-term investments, fair value	34,555,000	20,073,000
Corporate Bond Securities \| Short-Term Investments \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	34,555,000	20,073,000
Corporate Bond Securities \| Short-Term Investments \| Level 1 \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	0	0
US Government Agencies Debt Securities \| Short-Term Investments
Cash And Cash Equivalents [Line Items]
Short-term investments, amortized cost basis	14,962,000	14,949,000
Unrealized Gains	5,000	16,000
Unrealized Losses	(20,000)	(19,000)
Short-term investments, fair value	14,947,000	14,946,000
US Government Agencies Debt Securities \| Short-Term Investments \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	14,947,000	14,946,000
US Government Agencies Debt Securities \| Short-Term Investments \| Level 1 \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	0	0
Asset-Backed Securities \| Short-Term Investments
Cash And Cash Equivalents [Line Items]
Short-term investments, amortized cost basis	5,865,000	5,792,000
Unrealized Gains	43,000	64,000
Unrealized Losses	(1,000)	0
Short-term investments, fair value	5,907,000	5,856,000
Asset-Backed Securities \| Short-Term Investments \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	5,907,000	5,856,000
Asset-Backed Securities \| Short-Term Investments \| Level 1 \| Recurring
Cash And Cash Equivalents [Line Items]
Short-term investments, fair value	$ 0	$ 0

Net Income (Loss) Per Share

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

Net Income Per Share

Basic net income per share is calculated by dividing net income by the weighted-average number of shares of common stock outstanding for the period, without consideration of potential dilutive shares of common stock. Diluted net income per share attributable to the Company’s stockholders is calculated based on the weighted-average number of shares of its common stock and other dilutive securities outstanding.

Potentially dilutive common shares from employee equity incentive plans are determined by applying the treasury stock method to the assumed exercise of outstanding stock options and the assumed vesting of outstanding RSUs. Prior to conversion of the Company’s convertible debt, the Company will include, in the diluted net income per common share calculation, the effect of the additional shares that may be issued when the Company’s common stock price exceeds the conversion price using the if‐converted method. The Company’s convertible debt has no impact on diluted net income per

common share unless the average price of the Company’s common stock exceeds the conversion price because the Company is required to settle the principal amount of the convertible debt in cash upon conversion.

The components of basic and diluted net income per share were as follows (in thousands, except share and per share amounts):


	Three Months Ended March 31,
	2024		2023
Numerator:
Net income	$	55,346	$	39,125
Denominator:
Basic:
Weighted average number of common shares outstanding - basic	37,284,946		36,427,263
Diluted:
Weighted average number of common shares outstanding - basic	37,284,946		36,427,263
Dilutive effect of outstanding common stock options	753,786		1,039,985
Dilutive effect of restricted stock units	429,869		510,340
Dilutive effect of common stock pursuant to employee stock purchase plan	3,412		1,860
Weighted average number of common shares outstanding - diluted	38,472,013		37,979,448
Net income per share:
Basic	$	1.48	$	1.07
Diluted	$	1.44	$	1.03

All restricted shares, purchase rights under the ESPP, and capped call options for the three months ended March 31, 2024 and 2023 have been excluded from the calculation of the diluted net income per share, because all such securities are anti-dilutive for all periods presented. The total number of potential shares excluded from the calculation of diluted net income per share are as follows:


	Three Months Ended March 31,
	2024	2023
Restricted stock units	66,380	100,755
Employee stock purchase plan	5,770	—
Capped call options	333,409	—
Total	405,559	100,755

Organization and Basis of Presentation - Additional Information (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash, cash equivalents and short-term investments	$ 1,029,200

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income tax expense	$ (5,347)	$ 1,612
Federal statutory income tax rate	(10.69%)	(3.96%)

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Mar. 31, 2024 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Terminated	false
Trinh Phung [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement	On March 8, 2024, Trinh Phung, the Company’s Senior Vice President of Finance, entered into a modification letter of pre-arranged written stock sale plan dated September 7, 2023, in accordance with Rule 10b5-1 (the “Phung 10b5-1 Modification”) under the Exchange Act, for the sale of shares of the Company’s common stock. The Phung 10b5-1 Modification was entered into during an open trading window in accordance with the Company’s policies regarding transactions in the Company’s securities and is intended to satisfy the affirmative defense of Rule 10b5-1(c) under the Exchange Act. The Phung 10b5-1 Modification provides for the potential sale of up to 15,318 shares of the Company’s common stock, including upon the exercise of vested stock options for shares of the Company’s common stock, less the number of shares sold to satisfy tax withholding obligations pursuant to the Company’s “sell to cover” requirement, so long as the market price of the Company’s common stock is higher than certain minimum threshold prices specified in the Phung 10b5-1 Modification, between June 7, 2024 and December 15, 2024. The number of shares to be sold to satisfy the Company’s tax withholding obligations under the “sell-to-cover” arrangement is dependent on future events which cannot be known at this time, including the future trading price of the Company’s common stock.
Aggregate Available	15,318
Douglas Godshall [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement	On March 13, 2024, Doug Godshall, the Company’s Chief Executive Officer, terminated his pre-arranged written stock sale plan dated May 25, 2023, in accordance with Rule 10b5-1 under the Exchange Act, for the sale of shares of the Company’s common stock.
Name	Doug Godshall
Title	Chief Executive Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	March 13, 2024
Trinh Phung, Trading Arrangement on March 8, 2024 [Member] \| Trinh Phung [Member]
Trading Arrangements, by Individual
Name	Trinh Phung
Title	Senior Vice President of Finance
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	March 8, 2024
Trinh Phung, Trading Arrangement on September 7, 2023 [Member] \| Trinh Phung [Member]
Trading Arrangements, by Individual
Name	Trinh Phung
Title	Senior Vice President of Finance
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	September 7, 2023
Rule 10b5-1 Arrangement Terminated	true
Termination Date	March 8, 2024
Arrangement Duration	183 days

Cash Equivalents and Short-Term Investments - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Cash and Cash Equivalents [Abstract]
Debt Securities, Available-for-Sale, Unrealized Loss Position	$ 564.1	$ 45.9
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ 0.2	$ 0.1

Summary of Significant Accounting Policies - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Accounting Policies [Abstract]
Cash and cash equivalents	$ 281,674	$ 328,422	$ 280,932
Restricted cash	1,375		1,715
Total cash, cash equivalents, and restricted cash	$ 283,049		$ 282,647

Financial Instruments and Fair Value Measurements

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Financial Instruments and Fair Value Measurements

The following tables summarize the Company’s financial assets and liabilities measured at fair value within the fair value hierarchy:


	March 31, 2024
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	85,007	$	—	$	—	$	85,007
U.S. treasury securities	49,825		—		—		49,825
Marketable securities:
U.S. treasury securities	654,632		—		—		654,632
Commercial paper	—		37,518		—		37,518
Corporate bonds	—		34,555		—		34,555
U.S. agency securities	—		14,947		—		14,947
Asset-backed securities	—		5,907		—		5,907
Total assets	$	789,464	$	92,927	$	—	$	882,391
Liabilities:
Contingent consideration liability	$	—	$	—	$	7,659	$	7,659
Convertible debt	—		963,008		—		963,008
Total liabilities	$	—	$	963,008	$	7,659	$	970,667


	December 31, 2023
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets:
Cash equivalents:
Money market funds	$	43,277	$	—	$	—	$	43,277
U.S. treasury securities	109,310		—		—		109,310
Marketable securities:
U.S. treasury securities	575,203		—		—		575,203
Commercial paper	—		46,054		—		46,054
Corporate bonds	—		20,073		—		20,073
U.S. agency securities	—		14,946		—		14,946
Asset-backed securities	$	—	$	5,856	$	—	$	5,856
Total assets	$	727,790	$	86,929	$	—	$	814,719
Liabilities:
Contingent consideration liability	$	—	$	—	$	9,307	$	9,307
Convertible debt	—		730,455		—		730,455
Total liabilities	$	—	$	730,455	$	9,307	$	739,762

During the three months ended March 31, 2024 and 2023, there were no transfers between Level 1, Level 2 and Level 3.

Contingent Consideration Liabilities Related to Business Combination

In connection with the Company’s acquisition of Neovasc Inc. (“Neovasc”), a preliminary fair value of $9.3 million was recorded for the Neovasc contingent consideration, which consisted of estimated amounts in relation to the CVR (as defined below in Note 5), on April 11, 2023, the date on which the closing conditions for the acquisition were met and the transaction was consummated. Assets acquired and liabilities assumed are recorded based on valuations derived from estimated fair value assessments and Level 3 inputs and assumptions used by the Company. Adjustment to the fair value of the contingent consideration liability at the end of each reporting period is recognized in general and administrative expenses in the condensed consolidated statement of the operations. The following table presents a reconciliation of the contingent consideration liability classified as a Level 3 financial instrument for the three months ended March 31, 2024. See Note 5 “Business Combination” for information regarding existing contingent consideration liabilities as of March 31, 2024.


	Three Months Ended March 31, 2024
	(in thousands)
Balance, beginning of the period	$	9,307
Decrease in fair value	(1,648)
Balance, end of the period	$	7,659

Convertible Debt

As of March 31, 2024, the fair value of the Company’s convertible debt, measured on a non-recurring basis for disclosure purposes, was $963.0 million. The fair value was determined based on the quoted price of the convertible debt in an over-the-counter market on the last trading day of the reporting period and has been classified as Level 2 in the fair value hierarchy. See Note 10 “Convertible Debt” for information regarding the Company’s convertible debt as of March 31, 2024.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Business Combination - Finite-Lived Intangible Assets (Details) - Neovasc Inc. - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 11, 2023
Business Acquisition [Line Items]
Intangible assets	$ 95,500	$ 95,500
Customer Relationships
Business Acquisition [Line Items]
Finite-Lived Intangibles	$ 2,900
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life	5 years
Developed technology
Business Acquisition [Line Items]
Finite-Lived Intangibles	$ 61,200
Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life	20 years
In-process research and development
Business Acquisition [Line Items]
Indefinite-Lived Intangible Assets	$ 31,400

Goodwill and intangible assets - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Neovasc Inc.
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Amortization	$ 0.9

Stock-Based Compensation - Schedule of Total Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 22,937	$ 15,967
Cost of product revenue
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	1,372	954
Research and development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	6,027	3,795
Sales and marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	8,811	6,466
General and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	$ 6,727	$ 4,752

Revenue - Schedule of Product Revenue Based on Location (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation Of Revenue [Line Items]
Product revenue	$ 218,805	$ 161,066
United States
Disaggregation Of Revenue [Line Items]
Product revenue	175,532	131,623
Europe
Disaggregation Of Revenue [Line Items]
Product revenue	26,262	16,234
All other countries
Disaggregation Of Revenue [Line Items]
Product revenue	$ 17,011	$ 13,209

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details

- Definition

+ References

+ Details

Organization and Basis of Presentation	3 Months Ended
Organization and Basis of Presentation	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Shockwave Medical, Inc. (the “Company”) was incorporated on June 17, 2009. The Company is primarily engaged in the development and commercialization of novel technologies that transform the care of patients with cardiovascular disease. The Company is focused on its intravascular lithotripsy (“IVL”) technology for the treatment of calcified plaque in patients with peripheral vascular, coronary vascular and heart valve disease. Built on a balloon catheter platform, the IVL technology uses lithotripsy to disrupt both superficial and deep vascular calcium while minimizing soft tissue injury, and an integrated angioplasty balloon to dilate blockages at low pressures, restoring blood flow. Additionally, the Company continues to develop its coronary sinus reducer (“Reducer”) technology for the treatment of refractory angina. The Company, which is headquartered in Santa Clara, California and operates primarily in the United States, began commercial and manufacturing operations in 2016. The unaudited condensed consolidated financial statements include the accounts of Shockwave Medical, Inc. and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation. Certain reclassifications were made to prior period amounts in order to conform to the current period presentations. These reclassifications had no impact on the reported net income or cash flows for the three months ended March 31, 2023. As of March 31, 2024, the Company had cash, cash equivalents and short-term investments of $1,029.2 million, which are available to fund future working capital requirements, investments, acquisitions, or repayments of outstanding indebtedness. The Company believes that its cash, cash equivalents, and short-term investments as of March 31, 2024, will be sufficient for the Company to continue as a going concern for at least 12 months from the date these unaudited condensed consolidated financial statements are filed with the Securities and Exchange Commission (“SEC”). The Company’s future capital requirements will depend on many factors, including its growth rate, the timing and extent of its spending to support research and development activities, and the timing and cost of establishing additional sales and marketing capabilities. Risk and Uncertainties Uncertainty in the global business, political and macroeconomic environments present significant risks to the Company's business. The Company is subject to continuing risks and uncertainties, including inflation, rising interest rates, uncertainty with respect to the federal budget, instability in the global banking system, volatile market conditions, supply chain disruptions, cybersecurity events, and global events, including regional conflicts around the world. The Company is closely monitoring the impact of these factors on all aspects of its business, including the impacts on its customers, patients, employees, suppliers, vendors, business partners and distribution channels. In particular, while the Company has not experienced material disruptions in its supply chain to date, the Company has been and continues to be impacted by disruptions in the operations of certain of its third-party suppliers, resulting in increased lead-times, higher component costs and lower allocations for the purchase of some components. In certain cases, the Company has incurred higher logistical expenses. The Company is continuing to work closely with its manufacturing partners and suppliers to source key components and maintain appropriate inventory levels to meet customer demand. The Company’s future results of operations and liquidity could be adversely impacted by a variety of factors, including those discussed in the section titled “Risk Factors” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, filed with the SEC on February 26, 2024 (the “2023 Annual Report”), together with any updates in the sections titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Risk Factors” in this Quarterly Report on Form 10-Q. As of the date of issuance of these unaudited condensed consolidated financial statements, the extent to which the current macroeconomic environment may materially impact the Company’s financial condition, liquidity, or results of operations remains uncertain.

Convertible Debt (Details)			3 Months Ended
Convertible Debt (Details)	Aug. 15, 2023 USD ($) d $ / shares shares	Aug. 10, 2023 USD ($) $ / shares shares	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Interest Expense			$ 2,943,000	$ 636,000
Convertible Debt, Noncurrent			732,810,000		$ 731,863,000
Convertible Debt
Debt Instrument [Line Items]
Convertible Debt, Noncurrent			732,800,000
Convertible Senior Notes Due 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate Terms	The Notes bear interest at a rate of 1.0% per year, payable semiannually in arrears on February 15 and August 15 of each year, beginning on February 15, 2024
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger	130.00%
Debt Conversion, Converted Instrument, Shares Issued \| shares		3.4595
Debt Conversion, Converted Instrument, Maximum Shares Issued \| shares	4.4974
Debt Instrument, Redemption Price, Percentage	100.00%
Interest Expense			$ 2,800,000
Convertible Senior Notes Due 2028 \| Convertible Debt
Debt Instrument [Line Items]
Debt amount	$ 100,000,000.0
Debt Instrument, Interest Rate During Period	1.00%
Debt Instrument, Convertible, Threshold Consecutive Trading Days \| d	30
Debt Instrument, Convertible, Threshold Trading Days \| d	20
Debt Instrument, Convertible, Conversion Price \| $ / shares	$ 289.06
Debt Conversion, Converted Instrument, Rate	30.00%
Common stock, par value (in dollars per share) \| $ / shares	$ 222.35
Debt Issuance Costs, Gross	$ 19,600,000
Debt interest rate	1.50%
Debt Instrument, Issued, Principal	$ 750,000,000.0
Convertible Senior Notes Due 2028 \| Convertible Debt \| Debt Instrument, Period One
Debt Instrument [Line Items]
Debt Instrument, Convertible, Threshold Consecutive Trading Days \| d	30
Debt Instrument, Convertible, Threshold Trading Days \| d	20
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger	130.00%
Convertible Senior Notes Due 2028 \| Convertible Debt \| Debt Instrument, Period Two
Debt Instrument [Line Items]
Debt Instrument, Convertible, Threshold Consecutive Trading Days \| d	5
Debt Instrument, Convertible, Threshold Trading Days \| d	5
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger	98.00%
Call Option \| Convertible Debt
Debt Instrument [Line Items]
Common stock, par value (in dollars per share) \| $ / shares		$ 222.35
Share Price \| $ / shares		$ 444.70
Premium Recognized On Capped Call Transactions \| $ / shares		1
Purchases Of Capped Calls Related To Convertible Senior Notes		$ 96,400,000

Summary of Significant Accounting Policies (Policies)	3 Months Ended
Summary of Significant Accounting Policies (Policies)	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the SEC regarding interim financial reporting. The unaudited condensed consolidated financial statements have been prepared on the same basis as the Company’s audited consolidated financial statements and related notes included in the 2023 Annual Report and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary to present fairly the Company’s consolidated financial position, results of operations and cash flows. The results of operations for the three months ended March 31, 2024 are not necessarily indicative of the results to be expected for the year ending December 31, 2024 or for any other future annual or interim period. The condensed consolidated balance sheet as of December 31, 2023 included herein was derived from the audited financial statements as of that date. The unaudited condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and related notes included in the 2023 Annual Report. There have been no material changes in the Company’s significant accounting policies for the three months ended March 31, 2024 as compared to the significant accounting policies described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2023 that has been filed with the SEC.
New Accounting Pronouncements, Policy	Recently Issued Accounting Pronouncements Not Yet Adopted In November 2023, the Financial Accounting Standards Board (“FASB”) issued ASU 2023-07, Segment Reporting: Improvements to Reportable Segment Disclosures, which requires all public entities, including public entities with a single reportable segment, to provide in interim and annual periods one or more measures of segment profit or loss used by the chief operating decision maker to allocate resources and assess performance. Additionally, the standard requires disclosures of significant segment expenses and other segment items as well as incremental qualitative disclosures. The guidance in this update is effective for fiscal years beginning after December 15, 2023, and interim periods after December 15, 2024. The Company is currently in the process of evaluating the effects of this pronouncement on its related disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes: Improvements to Income Tax Disclosures, which requires enhanced income tax disclosures, including specific categories and disaggregation of information in the effective tax rate reconciliation, disaggregated information related to income taxes paid, income or loss from continuing operations before income tax expense or benefit, and income tax expense or benefit from continuing operations. The requirements of the ASU are effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently in the process of evaluating the impact of this pronouncement on its related disclosures. In March 2024, the SEC adopted the final rule under SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. The rule will require registrants to disclose certain climate-related information in registration statements and annual reports. The requirements of the rule will apply to the Company's fiscal year beginning January 1, 2025. The Company is currently evaluating the impact of the final rule to determine its impact on the Company's disclosures. The Company continues to monitor new accounting pronouncements issued by the FASB and does not believe any accounting pronouncements issued through the date of this report will have a material impact on the Company’s financial statements.

Equity Method Investments - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended
	Mar. 19, 2021	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Schedule Of Equity Method Investments [Line Items]
Equity method investment		$ 2,356		$ 1,643
Income (loss) from equity method investment		(713)	$ 823
Related party contract liability, noncurrent portion		12,273		$ 12,273
Joint Venture
Schedule Of Equity Method Investments [Line Items]
Percentage of equity stake received	45.00%
Joint Venture
Schedule Of Equity Method Investments [Line Items]
Related party contract liability, noncurrent portion		12,300
JV Agreement with Genesis MedTech
Schedule Of Equity Method Investments [Line Items]
Equity method investment		$ 2,400
JV Agreement with Genesis MedTech \| Share Subscription Agreement
Schedule Of Equity Method Investments [Line Items]
Ordinary shares issued (in shares)	54,900
Equity percentage	55.00%
Cash contribution from exchange of equity	$ 15,000
JV Agreement with Genesis MedTech \| License Agreement
Schedule Of Equity Method Investments [Line Items]
Ordinary shares issued (in shares)	45,000
Equity percentage	45.00%

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 55,346	$ 39,125
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,109	1,708
(Income) loss from equity method investment	(713)	823
Stock-based compensation	22,937	15,967
Non-cash lease expense	887	748
Amortization of premium and discount on available-for-sale securities	(9,897)	(718)
Loss on write down of fixed assets	8	11
Deferred Income Taxes and Tax Credits	(12,557)	(547)
Amortization of debt issuance costs	947	33
Foreign currency remeasurement	2,268	(689)
Decrease in fair value	(1,648)	0
Changes in operating assets and liabilities:
Accounts receivable	(9,014)	(13,004)
Inventory	(3,285)	(7,757)
Prepaid expenses and other current assets	2,144	1,896
Other assets	438	(861)
Accounts payable	416	4,734
Accrued and other current liabilities	(16,135)	(6,661)
Lease liabilities	(854)	(846)
Increase (Decrease) in Income Taxes Payable	1,443	0
Net cash provided by operating activities	35,840	33,962
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of available-for-sale securities	(400,599)	(21,130)
Proceeds from maturities of available-for-sale securities	324,535	34,500
Purchase of property and equipment	(8,389)	(7,188)
Net cash (used in) provided by investing activities	(84,453)	6,182
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments of taxes withheld on net settled vesting of restricted stock units	(8)	(3)
Proceeds from stock option exercises	750	320
Proceeds from issuance of common stock under employee stock purchase plan	4,269	3,092
Proceeds from debt financing	0	80,000
Net cash provided by financing activities	5,011	83,409
Effect of exchange rate changes on cash and cash equivalents	(3,175)	792
Net (decrease) increase in cash, cash equivalents and restricted cash	(46,777)	124,345
Cash, cash equivalents and restricted cash at beginning of period	329,826	158,302
Cash, cash equivalents and restricted cash equivalents at end of period	283,049	282,647
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid	3,870	424
Income tax paid	4,593	322
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	6,099	0
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Property and equipment purchases included in accounts payable and accrued liabilities	$ 7,334	$ 6,162

Balance Sheet Components - Schedule of Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 28,715	$ 25,670
Work in progress	22,604	16,499
Finished goods	59,896	65,418
Total inventory	$ 111,215	$ 107,587

Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Operating Leases

The Company’s operating leases consist of leased facilities for the Company’s headquarter offices, leased facilities for Neovasc and leased facilities for laboratory and manufacturing space. Also included in operating leases are leases for vehicles, for use by certain employees of the Company, which were not material for the periods presented. The operating leases for leased facilities expire at various dates through December 2031, of which some contain renewal options for up to two additional five-year terms at the then fair market rate. As of March 31, 2024, the Company is not reasonably certain it will exercise these options.

Short-term leases are leases having a term of 12 months or less. The Company recognizes short-term leases on a straight-line basis and does not record a related lease asset or liability for such leases. As of March 31, 2024, the Company has no material finance leases.


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Operating lease cost	$	1,444	$	1,211
Variable lease cost	267		300
Total lease cost	$	1,711	$	1,511

During the three months ended March 31, 2024 and 2023, the Company paid $1.4 million and $1.3 million of operating lease payments, respectively, related to the lease liabilities. The Company includes operating lease payments in net cash used in operating activities in the condensed consolidated statements of cash flows.

As of March 31, 2024, the weighted average remaining lease term and discount rate used to measure the Company’s operating lease liabilities were 7.7 years and 5.3%, respectively. The Company estimated the discount rate using the incremental borrowing rate as the rate implicit in the lease was not readily determinable.

As of March 31, 2024, the maturities of the payments due under the Company’s operating lease liabilities were as follows:


Years ending December 31,	(in thousands)
2024 (remainder)	$	4,619
2025	6,700
2026	6,897
2027	7,076
2028	7,242
Thereafter	23,074
Total minimum lease payments	$	55,608
Less: imputed interest	(10,320)
Less: Lease incentive	(1,299)
Total lease liability	$	43,989
Less: current portion	(3,653)
Lease liability, noncurrent portion	$	40,336

Revenue

3 Months Ended

Mar. 31, 2024

Disaggregation of Revenue [Abstract]

Revenue

The following table represents the Company’s product revenue based on product line:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
Coronary	$	164,526	$	113,875
Peripheral	51,843		46,130
Reducer	1,837		—
Other	599		1,061
Product revenue	$	218,805	$	161,066

Coronary product revenue encompasses sales of the Company’s C2 catheter and C2+ catheter. Peripheral product revenue encompasses sales of the Company’s M5 catheter, M5+ catheter, S4 catheter, and L6 catheter. Reducer revenue encompasses sales of the Company’s Reducer product. Other product revenue encompasses sales of the Company’s generators and related accessories.

The following table represents the Company’s product revenue based on the location to which the product is shipped:


	Three Months Ended March 31,
	2024		2023
	(in thousands)
United States	$	175,532	$	131,623
Europe	26,262		16,234
All other countries	17,011		13,209
Product revenue	$	218,805	$	161,066

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-10

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-15

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (c)
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-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 12
-Subparagraph (d)
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-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Section 50
-Paragraph 12
-Subparagraph (e)
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-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//606/tableOfContent

+ Details

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 1,444	$ 1,211
Operating Lease, Payments	$ 1,400	$ 1,300
Operating lease, weighted average remaining lease term	7 years 8 months 12 days
Operating lease, weighted average discount rate	5.30%

Commitments and Contingencies - Schedule of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 1,444	$ 1,211
Variable lease cost	267	300
Total lease cost	$ 1,711	$ 1,511

Net Income (Loss) Per Share - Summary of Outstanding Potentially Dilutive Common Stock Equivalents Excluded from Calculation of Diluted Net Income (Loss) Per Share (Details) - shares	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from calculation of diluted net loss per share (in shares)	405,559	100,755
Restricted Stock Units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from calculation of diluted net loss per share (in shares)	66,380	100,755
Employee Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from calculation of diluted net loss per share (in shares)	5,770	0
Capped Call Securities
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from calculation of diluted net loss per share (in shares)	333,409	0

Cash Equivalents and Short-Term Investments (Tables)

3 Months Ended

Mar. 31, 2024

Cash and Cash Equivalents [Abstract]

Summary of Cash Equivalents and Short-Term Investments

The following is a summary of the Company’s cash equivalents and short-term investments:


	March 31, 2024
	Amortized Cost Basis		Unrealized Gains		Unrealized Losses		Fair Value
	(in thousands)
Cash equivalents:
Money market funds	$	85,007	$	—	$	—	$	85,007
U.S. Treasury securities	49,826		—		(1)		49,825
Marketable securities:
U.S. Treasury securities	654,768		16		(152)		654,632
Commercial paper	37,506		18		(6)		37,518
Corporate bonds	34,600		7		(52)		34,555
U.S. agency securities	14,962		5		(20)		14,947
Asset-backed securities	5,865		43		(1)		5,907
Total	$	882,534	$	89	$	(232)	$	882,391
Reported as:
Cash equivalents							$	134,832
Short-term investments							747,559
Total							$	882,391


	December 31, 2023
	Amortized Cost Basis		Unrealized Gains		Unrealized Losses		Fair Value
	(in thousands)
Cash equivalents:
Money market funds	$	43,277	$	—	$	—	$	43,277
U.S. Treasury securities	109,292		18		—		109,310
Marketable securities:
U.S. Treasury securities	575,008		233		(38)		575,203
Commercial paper	46,015		52		(13)		46,054
Corporate bonds	19,995		86		(8)		20,073
U.S. agency securities	14,949		16		(19)		14,946
Asset-backed securities	5,792		64		—		5,856
Total	$	814,328	$	469	$	(78)	$	814,719
Reported as:
Cash equivalents							$	152,587
Short-term investments							662,132
Total							$	814,719

Summary of Remaining Contractual Maturities for Available-for-sale Securities

The remaining contractual maturities of the Company’s cash equivalents and short-term investments were as follows:


	March 31, 2024
	Fair Value
	(in thousands)
Money market funds	$	85,006
One year or less	736,694
Greater than one year and less than two years	60,691
Total	$	882,391

- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-9

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aaa)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-3

+ Details

Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Feb. 28, 2019	Mar. 31, 2024	Mar. 31, 2023	Mar. 06, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expenses capitalized amount		$ 200	$ 400
Common stock reserved for issuance (in shares)	2,000,430
Maximum period of automatic annual increase in common stock reserved for issuance	10 years
Automatic annual increase in common stock reserved for issuance	3.00%
Shares available for issuance (in shares)		4,220,428
Stock-based compensation expense		$ 22,937	15,967
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		4 years
Employee Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock reserved for issuance (in shares)				300,650
Shares available for issuance (in shares)		1,868,352
Purchase shares of common stock, price per share, percentage of fair market value		85.00%
Stock-based compensation expense		$ 700	$ 1,300
Performance-Based Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting percentage		100.00%
Performance-Based Restricted Stock Units \| Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		2 years
Vesting percentage		0.00%
Performance-Based Restricted Stock Units \| Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period		3 years
Vesting percentage		200.00%

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2024
Subsequent Events [Abstract]
Subsequent Events	16. Subsequent Event On April 4, 2024, the Company entered into an Agreement and Plan of Merger (the "Merger Agreement") with Johnson & Johnson, a New Jersey corporation, and Sweep Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Johnson & Johnson (the "Merger Sub"), providing for the merger of Merger Sub with and into the Company (the "Merger"), with the Company surviving the Merger as a wholly owned subsidiary of Johnson & Johnson. At the effective time of the Merger (the “Effective Time”): •Each share of the Company’s common stock outstanding immediately prior to the Effective Time (other than certain shares owned by Johnson & Johnson, Merger Sub or the Company to be excluded pursuant to the Merger Agreement and shares with respect to which appraisal rights have been exercised) will automatically be converted into the right to receive cash in an amount equal to $335.00 per share (the “Merger Consideration”), without interest thereon and less any applicable withholdings. •Each Company stock option (“Company Option”) that is outstanding and unexercised as of immediately prior to the Effective Time, whether vested or unvested, and which has a per share exercise price that is less than the Merger Consideration, will be cancelled and converted into the right to receive an amount in cash (without interest), less any applicable withholdings, equal to the product of (i) the aggregate number of shares underlying such Company Option immediately prior to the Effective Time, and (ii) the excess of (A) the Merger Consideration over (B) the per share exercise price of such Company Option. Each Company Option with a per share exercise price that equals or exceeds the amount of the Merger Consideration will be cancelled for no consideration. •Each restricted stock unit (“RSU Award”) that is outstanding as of immediately prior to the Effective Time, whether vested or unvested, will be canceled and converted into the right to receive an amount in cash (without interest), less any applicable withholdings, equal to the product of (i) the aggregate number of shares underlying such RSU Award immediately prior to the Effective Time and (ii) the Merger Consideration. •Each performance stock unit for which the performance period has not been completed as of the date of the Merger Agreement (“PSU Award”) that is outstanding as of immediately prior to the Effective Time, whether vested or unvested, will be canceled and converted into the right to receive an amount in cash (without interest), less any applicable withholdings, equal to the product of (i) the aggregate number of shares underlying such PSU Award immediately prior to the Effective Time (assuming attainment of (A) the actual level of performance for performance metrics for which the relevant performance period has been completed as of the Effective Time and (B) the maximum level of performance as determined under the terms of the applicable award agreement as in effect on the date of the Merger Agreement for performance metrics for which the relevant performance period has not been completed as of the Effective Time) and (ii) the Merger Consideration. The Merger Agreement contains customary representations and warranties by Johnson & Johnson, Merger Sub and the Company. The Merger Agreement also contains customary covenants and agreements, including with respect to the operations of the business of the Company between signing and closing. The Merger is expected to close by mid-year 2024, subject to approval by the Company’s stockholders, as well as the receipt of applicable regulatory approvals and other customary closing conditions.

Balance Sheet Components - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Employee compensation	$ 34,076	$ 49,706
Research and development costs	7,477	8,122
Asset purchases	9,054	7,788
Professional services	10,972	6,269
Excise, sales, income and other taxes	9,532	9,507
Other	4,393	6,809
Total accrued liabilities	78,838	91,696
Accrued Marketing Costs, Current	$ 3,334	$ 3,495

Equity Method Investments	3 Months Ended
Equity Method Investments	Mar. 31, 2024
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	14. Equity Method Investments Genesis Shockwave Private Limited On March 19, 2021, the Company entered into the Joint Venture Deed (or “JV Agreement”) with Genesis MedTech International Private Limited (“Genesis”) to establish a long-term strategic partnership to develop, manufacture and commercialize certain of the Company’s interventional products in the People’s Republic of China, excluding the Special Administrative Regions of Hong Kong and Macau (the “PRC”). Under the JV Agreement, Genesis Shockwave Private Ltd. (the “JV”) was formed under the laws of Singapore to serve as a joint venture of Genesis and the Company. On the same date, Genesis and the Company entered into a Share Subscription Agreement pursuant to which, among other things, the JV issued (i) 54,900 ordinary shares, which represents 55% of the total equity of the JV, to Genesis in exchange for a cash contribution of $15.0 million, and (ii) 45,000 ordinary shares, which represents 45% of the total equity of the JV, to the Company as consideration for the Shockwave License Agreement (the “License Agreement”). Under the License Agreement, the Company has agreed to contribute to the JV an exclusive license under certain of the Company’s intellectual property rights to develop, manufacture, distribute and commercialize certain products in the PRC and is entitled to receive royalties on the sales of the licensed products in the PRC. Further, the Company entered into a Distribution Agreement, pursuant to which the Company has agreed to sell certain Company-manufactured products to the JV or a PRC subsidiary of the JV for commercialization and distribution in the PRC. As of March 31, 2024, the carrying value of the Company’s investment in the JV was $2.4 million and the Company owned a 45% interest in the entity. The Company’s product revenue for products sold to the JV during the three months ended March 31, 2024 and related accounts receivable from the JV as of March 31, 2024 were immaterial. Intra-entity profit, which was recorded as a reduction to equity method investment as of and for the three months ended March 31, 2024 was also immaterial. For the three months ended March 31, 2024 and 2023, the Company recorded income from the equity method investment of $0.7 million and a loss from the equity method investment of $0.8 million, respectively. As of March 31, 2024, the associated manufacturing technology transfer to the JV has not yet been completed. The Company maintains a related party contract liability, noncurrent, of $12.3 million for the outstanding performance obligation. The Company will satisfy the outstanding performance obligation upon the completion of training provided by the Company to the JV, and successful regulatory approval for the JV manufactured product from the China National Medical Products Administration.

Goodwill and intangible assets (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The following table presents details of the acquired intangible assets as of March 31, 2024 (in thousands, except useful life and estimated remaining useful life which are in years):


	Gross Carrying Amount		Accumulated Amortization		Impairment		Intangible Assets, Net		Useful Life	Estimated Remaining Useful Life
Customer relationships	$	2,900	$	564	$	—	$	2,336	5.0 years	4.0 years
Developed technology	61,200		2,976		—		58,224		20.0 years	19.0 years
In-process research and development	31,400		—		—		31,400		N/A	N/A
Total	$	95,500	$	3,540	$	—	$	91,960	19.3 years	18.3 years

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table summarizes the estimated future amortization expense of intangible assets with finite lives as of March 31, 2024:


Years ending December 31,	(in thousands)
2024 (remainder)	$	2,743
2025	3,640
2026	3,640
2027	3,640
2028	3,219
Thereafter	43,678
Total estimated future amortization expense	$	60,560

Convertible Debt	3 Months Ended
Convertible Debt	Mar. 31, 2024
Debt Disclosure [Abstract]
Convertible Debt	10. Convertible Debt On August 15, 2023, the Company issued $750.0 million in aggregate principal amount of 1.0% convertible senior notes due 2028 (the “Notes”). The issuance included the full exercise of an option granted by the Company to the initial purchasers of the Notes to purchase an additional $100.0 million in aggregate principal amount of Notes. The Notes were issued pursuant to and subject to the terms of an indenture, dated August 15, 2023, between the Company and U.S. Bank Trust Company, National Association, as trustee (the “Indenture”). The Indenture includes customary covenants and sets forth certain events of default, including certain types of bankruptcy and insolvency events, after which the Notes may be declared immediately due and payable. The Notes were offered and sold in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended. The Notes are senior, unsecured obligations of the Company. The Notes will mature on August 15, 2028, unless earlier converted, redeemed, or repurchased in accordance with their terms. The Notes bear interest at a rate of 1.0% per year, payable semiannually in arrears on February 15 and August 15 of each year, beginning on February 15, 2024. The Notes are convertible, in multiples of $1,000 principal amount and at the option of the noteholder, on or after May 15, 2028. Prior to May 15, 2028, holders of the Notes may convert all or a portion of their Notes, in multiples of $1,000 principal amount, only under the following circumstances: (1) during any calendar quarter commencing after December 31, 2023 (and only during such calendar quarter) if the closing price of the Company’s common stock for at least 20 trading days (whether or not consecutive) in a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the then applicable conversion price for the Notes on each applicable trading day; (2) during the five business days immediately after any five consecutive trading day period in which the trading price (as defined in the Indenture) per $1,000 principal amount of Notes for each day of that period was less than 98% of the product of the closing price of the Company’s common stock and the then applicable conversion rate; (3) if the Company calls such Notes for redemption, at any time prior to the close of business on the scheduled trading day immediately preceding the redemption date, but only with respect to the Notes called (or deemed called) for redemption; or (4) upon the occurrence of specific corporate events as specified in the Indenture. The Company will settle any conversions of Notes by paying or delivering, as applicable, cash up to the aggregate principal amount of the Notes to be converted and by paying or delivering, as the case may be, cash, shares of common stock or a combination of cash and shares of common stock, at the election of the Company, in respect of the remainder, if any, of the Company’s conversion obligation in excess of the aggregate principal amount of the Notes being converted. The conversion rate for the Notes was initially 3.4595 shares of common stock per $1,000 principal amount of Notes, which is equivalent to an initial conversion price of approximately $289.06 per share of common stock. The initial conversion price of the Notes represents a premium of approximately 30% over the $222.35 per share last reported sale price of common stock on August 10, 2023. The conversion rate is subject to adjustment under certain circumstances in accordance with the terms of the Indenture, with a maximum conversion rate of 4.4974 shares of common stock per $1,000 principal amount of Notes. During the three months ended March 31, 2024, the conditions allowing holders of the Notes to convert were not met. The Company may not redeem the Notes prior to August 20, 2026. The Company may redeem, for cash equal to 100% of the principal amount of the Notes being redeemed plus accrued and unpaid interest, all or any portion of the Notes, at its option, on or after August 20, 2026, if the last reported sales price of its common stock has been at least 130% of the conversion price then in effect for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period ending on, and including, the trading day immediately preceding the date on which the Company provides notice of the redemption. No sinking fund is provided for the Notes and therefore the Company is not required to redeem or retire the Notes periodically. During the three months ended March 31, 2024, the conditions allowing the Company to redeem for cash all or any portion of the Notes were not met. If the Company undergoes a fundamental change, as defined in the Indenture, then subject to certain conditions, holders may require the Company to repurchase for cash all or any portion of their Notes at a price equal to 100% of the principal amount of the Notes to be repurchased plus any accrued and unpaid interest to, but excluding, the repurchase date. In addition, under certain circumstances, holders of the Notes are entitled to an increase in the conversion rate. The conditions allowing holders of the Notes to convert were not met this quarter. As of March 31, 2024, the Notes were classified as a long-term liability, net of issuance costs of $19.6 million, on the condensed consolidated balance sheets. As of March 31, 2024, the net carrying amount of the Notes was $732.8 million. Interest expense recognized related to the Notes for the three months ended March 31, 2024 was $2.8 million. The Notes were issued at par and costs associated with the issuance of the Notes are amortized to interest expense over the contractual term of the Notes. As of March 31, 2024, the effective interest rate of the Notes was 1.5%. Capped Call Transactions On August 10, 2023, in connection with the pricing of the Notes and the initial purchasers’ exercise of their option to purchase additional Notes, the Company entered into privately negotiated capped call transactions (“Capped Call Transactions”). The Capped Call Transactions initially covered, subject to customary anti-dilution adjustments, the number of shares of common stock that underlie the Notes. The cap price of the Capped Call Transactions was initially $444.70 per share, which represents a premium of 100% over the last reported sale price of the Company’s common stock of $222.35 per share on August 10, 2023, and is subject to certain adjustments under the terms of the Capped Call Transactions. The Company used approximately $96.4 million of the proceeds from the offering of Notes to pay the cost of the Capped Call Transactions. The Company evaluated the Capped Call Transactions and determined that they should be accounted for separately from the Notes. The cost of $96.4 million to purchase the Capped Call Transactions was recorded as a reduction to additional paid-in capital in the condensed consolidated balance sheet as of March 31, 2024 as the Capped Call Transactions are indexed to the Company's own stock and met the criteria to be classified in stockholders’ equity.

Cover Page - shares	3 Months Ended
Cover Page - shares	Mar. 31, 2024	May 01, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-38829
Entity Registrant Name	Shockwave Medical, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-0494101
Entity Address, Address Line One	5403 Betsy Ross Drive
Entity Address, City or Town	Santa Clara
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95054
City Area Code	510
Local Phone Number	279-4262
Title of 12(b) Security	Shockwave Medical, Inc., common stock, par value $0.001 per share
Trading Symbol	SWAV
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		37,543,542
Entity Central Index Key	0001642545
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false

Net Income (Loss) Per Share - Components of Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net income (loss)	$ 55,346	$ 39,125
Denominator:
Basic (in shares)	37,284,946	36,427,263
Diluted (in shares)	38,472,013	37,979,448
Net income per share:
Basic (USD per share)	$ 1.48	$ 1.07
Diluted (USD per share)	$ 1.44	$ 1.03
Restricted Stock Units
Denominator:
Dilutive effect of share-based payment arrangements (in shares)	429,869	510,340
Employee Stock
Denominator:
Dilutive effect of share-based payment arrangements (in shares)	3,412	1,860
Stock Options
Denominator:
Dilutive effect of share-based payment arrangements (in shares)	753,786	1,039,985

Business Combination - Calculation of Consideration Transferred (Details) - Neovasc Inc. $ in Thousands	Apr. 11, 2023 USD ($)
Business Acquisition [Line Items]
Cash transferred	$ 112,129
Contingent consideration liability	9,307
Business Combination, Consideration Transferred	$ 121,436