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Comprehensive Income and Accumulated Other Comprehensive Income - Schedule of Changes in Accumulated Other Comprehensive Income (AOCI) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Accumulated Other Comprehensive Income Loss [Line Items]      
Beginning Balance $ 438,816 $ 430,215 $ 409,762
Net current period other comprehensive income (loss) (7,482) 8,808 13,043
Ending Balance 399,323 438,816 430,215
Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated Other Comprehensive Income Loss [Line Items]      
Beginning Balance 21,019 12,211 (832)
Other comprehensive income (loss) before reclassification (5,289) 9,538 12,379
Amounts reclassified from accumulated other comprehensive income (loss) (2,193) (730) 664
Net current period other comprehensive income (loss) (7,482) 8,808 13,043
Ending Balance $ 13,537 $ 21,019 $ 12,211