v3.26.1
Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance $ 3,606,207 $ 3,429,774 $ 3,631,382 $ 3,367,936
Change in unrealized gain/(loss) (18,375) 20,038 (49,703) 70,317
Amounts reclassified into net income 2,606 9,967 5,163 20,326
Other comprehensive income/(loss) (15,769) 30,005 (44,540) 90,643
Income tax expense/(benefit) (3,628) 6,774 (10,245) 20,467
Other comprehensive income/(loss), net of tax (12,141) 23,231 (34,295) 70,176
Ending balance 3,647,707 3,510,070 3,647,707 3,510,070
Cash Flow Hedges        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (5,434) (8,020) 3,100 (15,275)
Change in unrealized gain/(loss) (12,586) 207 (24,708) 865
Amounts reclassified into net income 1,129 8,379 2,168 17,093
Other comprehensive income/(loss) (11,457) 8,586 (22,540) 17,958
Income tax expense/(benefit) (2,636) 1,938 (5,185) 4,055
Other comprehensive income/(loss), net of tax (8,821) 6,648 (17,355) 13,903
Ending balance (14,255) (1,372) (14,255) (1,372)
Available-for-Sale Securities        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (51,352) (93,114) (36,563) (131,531)
Change in unrealized gain/(loss) (5,789) 19,831 (24,995) 69,452
Amounts reclassified into net income 0 0 0 0
Other comprehensive income/(loss) (5,789) 19,831 (24,995) 69,452
Income tax expense/(benefit) (1,332) 4,478 (5,749) 15,682
Other comprehensive income/(loss), net of tax (4,457) 15,353 (19,246) 53,770
Ending balance (55,809) (77,761) (55,809) (77,761)
Held-to-Maturity Securities        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (29,953) (35,028) (31,122) (36,301)
Change in unrealized gain/(loss) 0 0 0 0
Amounts reclassified into net income 1,477 1,588 2,995 3,233
Other comprehensive income/(loss) 1,477 1,588 2,995 3,233
Income tax expense/(benefit) 340 358 689 730
Other comprehensive income/(loss), net of tax 1,137 1,230 2,306 2,503
Ending balance (28,816) (33,798) (28,816) (33,798)
Total        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning balance (86,739) (136,162) (64,585) (183,107)
Ending balance $ (98,880) $ (112,931) $ (98,880) $ (112,931)