XML 64 R53.htm IDEA: XBRL DOCUMENT v3.21.1
Other Comprehensive Income - Summary of Components of OCI (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Equity [Abstract]    
Net change in fair value recorded in accumulated OCI, Before-tax $ (40,391) $ 36,619
Net change in fair value recorded in accumulated OCI, Tax effect 11,941 (10,826)
Net change in fair value recorded in accumulated OCI, After-tax (28,450) 25,793
Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, Before-tax 81 (1)
Amortization of unrealized gains (losses) on securities transferred from available-for-sale to held-to-maturity, Tax effect (24) 0
Amortization of unrealized losses on securities transferred from available-for-sale to held-to-maturity, After-tax 57 (1)
Net change, Before-tax (40,310) 36,618
Net change, Tax effect 11,917 (10,826)
Net change, After-tax $ (28,393) $ 25,792