Convertible Senior Notes - Summary of the Components of Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Amortization of discount	$ 18,608	$ 4,766	$ 0
Amortization of debt issuance costs	3,440	1,597	$ 2,204
Convertible Senior Notes \| Convertible Debt
Debt Instrument [Line Items]
Contractual coupon interest	1,438	379
Amortization of discount	18,608	4,766
Amortization of debt issuance costs	$ 2,343	$ 600

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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