Income Tax- Summary of Positions for which Significant Change in Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Beginning of Year	$ 268,902
Gross increases for tax positions of prior years	0	$ 268,902
End of Year	$ 268,902	$ 268,902