Fair Value of Financial Assets and Liabilities - Schedule of Financial Assets and Liabilities at Fair Value on Recurring Basis (Detail) - Recurring Basis [Member] - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets:
Total Assets	$ 265,230
Liabilities:
CVR Liability	3,060	$ 3,060
Total Liabilities	3,060	3,060
Level 2 [Member]
Assets:
Total Assets	265,230
Level 3 [Member]
Liabilities:
CVR Liability	3,060	3,060
Total Liabilities	3,060	$ 3,060
Money Market Funds [Member]
Assets:
Cash equivalents	265,230
Money Market Funds [Member] | Level 2 [Member]
Assets:
Cash equivalents	$ 265,230