Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) (AOCI) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 395,273	$ 447,626	$ 399,323	$ 438,816
Other comprehensive income (loss) before reclassification	(8,248)	2,139	(21,705)	(2,596)
Amounts reclassified from accumulated other comprehensive income (loss)	(683)	(1,248)	(706)	(1,561)
Net current period other comprehensive income (loss)	(8,931)	891	(22,411)	(4,157)
Ending Balance	384,989	468,366	384,989	468,366
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	57	15,971	13,537	21,019
Ending Balance	$ (8,874)	$ 16,862	$ (8,874)	$ 16,862