Indebtedness - Summary of Debt Facilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 14, 2022	Nov. 14, 2017
Debt Instrument [Line Items]
Principal amount	$ 1,315,729
Net carrying value	1,236,755	$ 1,544,292
Total carrying value of debt facilities	1,236,755	1,544,292
Total fair value of debt facilities	1,484,197	2,073,528
2024 Convertible Notes [Member]
Debt Instrument [Line Items]
Principal amount	105,847	419,371	$ 150,600	$ 570,000
Unamortized discount - debt issuance costs	(465)	(3,059)
Total fair value of debt facilities	189,297	765,046
2027 Convertible Notes [Member]
Debt Instrument [Line Items]
Principal amount	1,150,000	1,150,000
Unamortized discount - debt issuance costs	(18,627)	(22,020)
Total fair value of debt facilities	$ 1,294,900	$ 1,308,482