Debt - Equity and Liability Components of the Notes (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total interest expense	$ 305,845	$ 105,844
Convertible Debt \| Convertible Senior Notes Due 2024
Debt Instrument [Line Items]
Principal amount of notes outstanding	13,750	13,750
Unamortized discount and unamortized debt issuance cost	(1,904)	(2,619)
Total interest expense	11,846	11,131
Convertible Debt \| Convertible Senior Notes Due 2026
Debt Instrument [Line Items]
Principal amount of notes outstanding	120,000	120,000
Unamortized discount and unamortized debt issuance cost	(21,853)	(25,986)
Total interest expense	98,147	94,014
Convertible Debt \| Convertible Senior Notes Due 2027
Debt Instrument [Line Items]
Principal amount of notes outstanding	265,000
Unamortized discount and unamortized debt issuance cost	(69,148)
Total interest expense	195,852
Convertible Debt \| Senior Notes Due in 2024, 2026 and 2027
Debt Instrument [Line Items]
Principal amount of notes outstanding	398,750
Unamortized discount and unamortized debt issuance cost	(92,905)
Total interest expense	$ 305,845
Convertible Debt \| Senior Notes Due in 2024 and 2026
Debt Instrument [Line Items]
Principal amount of notes outstanding		133,750
Unamortized discount and unamortized debt issuance cost		(28,605)
Total interest expense		$ 105,145

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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