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Other Comprehensive (Loss) Income - Schedule of Changes in Each Component of Accumulated Other Comprehensive income (loss), Net of Tax (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Investment securities available-for-sale:        
Beginning balance $ 1,169,459 $ 1,219,766 $ 1,274,283 $ 1,228,321
Other comprehensive income (loss) before reclassifications     33,901 (15,452)
Amortization of unrealized loss on securities transferred to held-to-maturity 1,355 1,400 4,062 3,444
Net other comprehensive income (loss) during period 36,666 (19,918) 38,180 (11,998)
Ending balance 1,225,424 1,215,884 1,225,424 1,215,884
Securities Available-For-Sale        
Investment securities available-for-sale:        
Beginning balance (123,689) (148,897) (122,246) (154,773)
Other comprehensive income (loss) before reclassifications 35,338 (21,314) 33,901 (15,452)
Amounts reclassified from accumulated other comprehensive income (loss) (2) (4) (8) 10
Amortization of unrealized loss on securities transferred to held-to-maturity 0 0 0 0
Net other comprehensive income (loss) during period 35,336 (21,318) 33,893 (15,442)
Ending balance (88,353) (170,215) (88,353) (170,215)
Securities Held-to-Maturity        
Investment securities available-for-sale:        
Beginning balance (37,222) (42,690) (39,929) (44,734)
Other comprehensive income (loss) before reclassifications 0 0 0 0
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0 0
Amortization of unrealized loss on securities transferred to held-to-maturity 1,355 1,400 4,062 3,444
Net other comprehensive income (loss) during period 1,355 1,400 4,062 3,444
Ending balance (35,867) (41,290) (35,867) (41,290)
Derivatives        
Investment securities available-for-sale:        
Beginning balance 68 0 (182) 0
Other comprehensive income (loss) before reclassifications (25) 0 225 0
Amounts reclassified from accumulated other comprehensive income (loss) 0 0 0 0
Amortization of unrealized loss on securities transferred to held-to-maturity 0 0 0 0
Net other comprehensive income (loss) during period (25) 0 225 0
Ending balance 43 0 43 0
Accumulated Other Comprehensive Income (Loss)        
Investment securities available-for-sale:        
Beginning balance (160,843) (191,587) (162,357) (199,507)
Other comprehensive income (loss) before reclassifications 35,313 (21,314) 34,126 (15,452)
Amounts reclassified from accumulated other comprehensive income (loss) (2) (4) (8) 10
Amortization of unrealized loss on securities transferred to held-to-maturity 1,355 1,400 4,062 3,444
Net other comprehensive income (loss) during period 36,666 (19,918) 38,180 (11,998)
Ending balance $ (124,177) $ (211,505) $ (124,177) $ (211,505)