Convertible Senior Notes - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Debt Instrument [Line Items]
Total interest expense	$ 3,121	$ 14,591	$ 6,242	$ 29,006
Convertible debt \| Convertible senior notes due 2025
Debt Instrument [Line Items]
Contractual interest expense	1,797	1,797	3,594	3,594
Amortization of debt discount	0	10,155	0	20,184
Amortization of issuance costs	1,046	715	2,089	1,412
Total interest expense	2,843	12,667	5,683	25,190
Convertible debt \| Convertible senior notes due 2023
Debt Instrument [Line Items]
Contractual interest expense	93	93	186	186
Amortization of debt discount	0	1,677	0	3,333
Amortization of issuance costs	179	147	357	290
Total interest expense	$ 272	$ 1,917	$ 543	$ 3,809

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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