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Financing and Other Debt - Schedule of Convertible Notes (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2020	Sep. 30, 2021	Jan. 01, 2021
Debt Instrument [Line Items]
Principal		$ 3,132,090	$ 3,041,989
Net carrying amount of Convertible Notes				$ 2,874,113
Adjustments to additional paid in capital, equity component of convertible debt	$ 41,066
Convertible Debt
Debt Instrument [Line Items]
Principal		310,000	310,000
Convertible Debt \| Convertible Senior Notes Due 2027
Debt Instrument [Line Items]
Principal		310,000	310,000
Less: Unamortized discounts		(66,755)	(13,292)
Less: Unamortized issuance cost		(2,358)	(2,140)
Net carrying amount of Convertible Notes		240,887	294,568
Equity component		54,689	$ 0
Debt financing costs		600
Adjustments to additional paid in capital, equity component of convertible debt		$ 13,600