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Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
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
Convertible senior notes, fair value	125,185
Convertible senior notes, net carrying value	140,644		$ 139,966
Term notes outstanding principal balance	600,000
Money market funds
Cash equivalents	2,016		45,078
Level 1 | Money market funds
Cash equivalents	$ 2,016		$ 45,078

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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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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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