Supplemental Disclosures - Supplemental Disclosures (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	$ 500,164	$ 159,556	$ 132,517
Restricted cash	1,307	1,307	$ 1,308
Total cash, cash equivalents and restricted cash	501,471	160,863
Supplemental non-cash information:
Issuance of treasury stock to commercial partner	$ 0	$ 534