Convertible Senior Notes and Capped Call Transactions - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total	$ 3,168	$ 2,017	$ 0
2025 Senior Notes
Debt Instrument [Line Items]
Contractual interest expense	3,162	2,012
Amortization of debt discount	5,651	3,369
Amortization of debt discount and issuance costs	1,219	727
Total	$ 10,032	$ 6,108