v3.25.2
Other Comprehensive Income - Changes in the Components of Other Comprehensive Income (Loss), Net of Tax (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Total other comprehensive income (loss), pre-tax $ 10,145 $ 3,817 $ 38,198 $ 241
Total other comprehensive income (loss), tax expense (benefit) 2,565 990 9,631 101
Other comprehensive income, net of tax 7,580 2,827 28,567 140
Securities available for sale:        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss), before reclassifications, pre-tax 9,040 648 35,727 (5,544)
Other comprehensive income (loss) before reclassifications, tax expense (benefit) 2,282 180 8,999 (1,378)
Other comprehensive income (loss), before reclassifications, net of tax 6,758 468 26,728 (4,166)
Amortization of unrealized holding losses on securities transferred to held to maturity category, pre tax 2,840 3,252 5,884 6,527
Amortization of unrealized holding losses on securities transferred to the held to maturity category 727 831 1,506 1,668
Amortization of unrealized holding losses on securities transferred to held to maturity category, net of tax 2,113 2,421 4,378 4,859
Total other comprehensive income (loss), pre-tax 11,880 3,900 41,611 983
Total other comprehensive income (loss), tax expense (benefit) 3,009 1,011 10,505 290
Other comprehensive income, net of tax 8,871 2,889 31,106 693
Derivative instruments:        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Other comprehensive income (loss), before reclassifications, pre-tax (1,835) (188) (3,612) (953)
Other comprehensive income (loss) before reclassifications, tax expense (benefit) (470) (47) (925) (242)
Other comprehensive income (loss), before reclassifications, net of tax (1,365) (141) (2,687) (711)
Total other comprehensive income (loss), pre-tax (1,835) (188) (3,612) (953)
Total other comprehensive income (loss), tax expense (benefit) (470) (47) (925) (242)
Other comprehensive income, net of tax (1,365) (141) (2,687) (711)
Total defined benefit pension and post-retirement benefit plans        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Amortization of unrealized holding losses on securities transferred to held to maturity category, pre tax 100 105 199 211
Amortization of unrealized holding losses on securities transferred to the held to maturity category 26 26 51 53
Amortization of unrealized holding losses on securities transferred to held to maturity category, net of tax 74 79 148 158
Total other comprehensive income (loss), pre-tax 100 105 199 211
Total other comprehensive income (loss), tax expense (benefit) 26 26 51 53
Other comprehensive income, net of tax $ 74 $ 79 $ 148 $ 158