Indebtedness - Summary of Debt Facilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Nov. 14, 2017
Debt Instrument [Line Items]
Principal amount	$ 1,285,476
Total carrying value of debt instruments	1,227,560	$ 1,237,998
Total carrying value of debt instruments	91,595	105,483
Total fair value of debt instruments	1,479,084	1,317,109
2024 Convertible Notes [Member]
Debt Instrument [Line Items]
Principal amount	91,640	105,847	$ 570,000
Unamortized discount - debt issuance costs	(45)	(364)
Total fair value of debt instruments	171,154	144,833
2027 Convertible Notes [Member]
Debt Instrument [Line Items]
Principal amount	1,150,000	1,150,000
Unamortized discount - debt issuance costs	(14,035)	(17,485)
Total fair value of debt instruments	$ 1,307,930	$ 1,172,276