v3.21.2

Convertible Senior Notes - Schedule of Interest Expense Related to 2026 Notes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Amortization of debt issuance costs			$ 1,550	$ 1,427
Amortization of debt discount			19,398	15,381
Convertible Senior Notes Due June 2026 | Convertible Debt
Debt Instrument [Line Items]
Contractual interest expense	$ 593	$ 593	1,779	1,772
Amortization of debt issuance costs	219	206	636	608
Amortization of debt discount	2,801	2,698	8,188	7,959
Interest Expense	$ 3,613	$ 3,497	$ 10,603	$ 10,339

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