Debt - Debt Outstanding Excluding Lease Obligations (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Debt instrument principal amount	$ 207,911	$ 342,853
Unamortized Discount and Debt Issuance Costs	8,016	(7,209)
Net Carrying Amount	199,895	350,062
0.875% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	207,911	167,853
Unamortized Discount and Debt Issuance Costs	4,104	(9,057)
Net Carrying Amount	203,807	176,910
Senior Secured Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument principal amount	0	175,000
Unamortized Discount and Debt Issuance Costs	3,912	1,848
Net Carrying Amount	$ (3,912)	$ 173,152