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Description of Business and Summary of Significant Accounting Policies - Convertible Senior Notes (Details) - USD ($)			12 Months Ended
	Jun. 28, 2021	Jan. 26, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Payments of debt issuance costs			$ 5,643,000	$ 432,000	$ 0
Payments of expenses associated with initial public offering			$ 0	$ 1,373,000	$ 0
2026 Notes: | Convertible Debt
Debt Instrument [Line Items]
Debt instrument, face amount		$ 690,000,000
Debt instrument, interest rate, stated percentage		0.125%
Payments of debt issuance costs		$ 18,055,000
Payments of expenses associated with initial public offering		$ 25,530,000
2027 Notes: | Convertible Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 575,000,000
Debt instrument, interest rate, stated percentage	0.375%
Payments of debt issuance costs	$ 15,065,000
Payments of expenses associated with initial public offering	$ 25,875,000

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