Debt - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Debt Instrument [Line Items]
Total interest expense	$ 1,922	$ 3,861
Senior Notes
Debt Instrument [Line Items]
Contractual interest expense	822	822
Amortization of debt discount	0	0
Amortization of debt issuance costs	2,754	1,288
Total interest expense	3,576	2,110
1.75% Convertible Senior Notes due 2023 | Senior Notes
Debt Instrument [Line Items]
Contractual interest expense	103	103
Amortization of debt discount	0	0
Amortization of debt issuance costs	38	38
Total interest expense	141	141
0% Convertible Senior Notes due 2025 | Senior Notes
Debt Instrument [Line Items]
Contractual interest expense	0	0
Amortization of debt discount	0	0
Amortization of debt issuance costs	2,156	690
Total interest expense	2,156	690
0.5% Convertible Senior Notes Due 2027 | Senior Notes
Debt Instrument [Line Items]
Contractual interest expense	719	719
Amortization of debt discount	0	0
Amortization of debt issuance costs	560	560
Total interest expense	$ 1,279	$ 1,279