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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

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Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Amount of transfers of financial instrument classified as a liability into level 3 of the fair value hierarchy.

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Amount of investment in marketable security, classified as current.

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Summary of Significant Accounting Policies - Fair Value Measurements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Feb. 10, 2023	Feb. 13, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Transfer of Assets From Level 1 to Level 2	$ 0	$ 0
Transfer of Assets From Level 2 to Level 1	0	0
Transfer of Liabilities From Level 1 to Level 2	0	0
Transfer of Liabilities From Level 2 to Level 1	0	0
Transfer of Assets Into Level 3	0	0
Transfer of Assets Out of Level 3	0	0
Transfer of Liabilities Into Level 3	0	0
Transfer of Liabilities Out of Level 3	0	0
Marketable securities	71,601
Total assets measured at fair value	153,629	172,590
Convertible senior notes, carrying value	$ 262,125	140,873
2026 Convertible Notes
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Interest rate (as a percent)	2.625%			2.625%
Convertible senior notes, fair value	$ 25,033
Convertible senior notes, carrying value	$ 25,992
2029 Convertible Notes
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Interest rate (as a percent)	2.875%		2.875%
Convertible senior notes, fair value	$ 249,803
Convertible senior notes, carrying value	236,133
Corporate debt securities
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Marketable securities	41,612
U.S. Treasury securities
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Marketable securities	25,468
Government-sponsored securities
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Marketable securities	4,521
Money market funds
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Cash equivalents	77,299	172,590
U.S. Treasury securities
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Cash equivalents	4,729
Quoted Prices in active markets (Level 1)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Total assets measured at fair value	77,299	172,590
Quoted Prices in active markets (Level 1) \| Money market funds
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Cash equivalents	77,299	$ 172,590
Significant other observable inputs (Level 2)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Total assets measured at fair value	76,330
Significant other observable inputs (Level 2) \| Corporate debt securities
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Marketable securities	41,612
Significant other observable inputs (Level 2) \| U.S. Treasury securities
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Marketable securities	25,468
Significant other observable inputs (Level 2) \| Government-sponsored securities
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Marketable securities	4,521
Significant other observable inputs (Level 2) \| U.S. Treasury securities
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Cash equivalents	$ 4,729