Intangible Assets - Reconciliation of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Gross carrying amount at beginning of period	$ 68,322	$ 68,322
Gross carrying amount at end of period	68,322	68,322
Accumulated amortization at beginning of period	(45,573)	(43,113)
Amortization expense	(615)	(615)
Accumulated amortization at end of period	(46,188)	(43,728)
Net book value at end of period	$ 22,134	$ 24,594	$ 22,749