Long-term Debt - Schedule of Interest Expense Related to Notes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Convertible Debt
Debt Instrument [Line Items]
Contractual Interest Expense	$ 4,875
Amortization of Issuance Costs	6,403
Total interest expense	11,278
Convertible Senior Notes due 2025 | Convertible Debt
Debt Instrument [Line Items]
Contractual Interest Expense	4,875	$ 271
Amortization of debt discount		1,452
Amortization of Issuance Costs	2,970	91
Total interest expense	7,845	$ 1,814
Convertible Senior Notes due 2027 | Convertible Debt
Debt Instrument [Line Items]
Contractual Interest Expense	0
Amortization of Issuance Costs	3,433
Total interest expense	3,433
Secured Notes Due Twenty Twenty Eight
Debt Instrument [Line Items]
Contractual Interest Expense	16,674
Amortization of Issuance Costs	798
Total interest expense	$ 17,472