Debt - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Amortization of debt discount and issuance costs	$ 67,153	$ 52,059	$ 46,493
Capitalization of interest expense	(4,330)	(6,201)	(4,533)
Total interest expense	69,120	49,364	43,202
Credit Agreement
Debt Instrument [Line Items]
Interest on debt instruments	548	513	368
Convertible Debt \| 2025 Notes
Debt Instrument [Line Items]
Interest on debt instruments	1,437	1,436	874
Convertible Debt \| 2027 Notes
Debt Instrument [Line Items]
Interest on debt instruments	$ 4,312	$ 1,557	$ 0

Increase for accrued, but unpaid interest on the debt instrument for the period.

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