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Obligations - Interest Cost Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Amortization of financing costs	$ 2,300	$ 2,000	$ 1,600
Convertible Debt
Debt Instrument [Line Items]
Contractual coupon interest	18,623	14,286
Amortization of financing costs	2,348	2,008
Total	20,971	16,294
2027 Notes | Convertible Debt
Debt Instrument [Line Items]
Contractual coupon interest	16,100	9,526
Amortization of financing costs	1,768	990
Total	17,868	10,516
2024 Notes | Convertible Debt
Debt Instrument [Line Items]
Contractual coupon interest	2,523	4,760	8,000
Amortization of financing costs	580	1,018	1,627
Total	$ 3,103	$ 5,778	$ 9,627

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