v3.26.1
Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance $ 3,631,382 $ 3,367,936
Change in unrealized gain/(loss) (31,328) 50,279
Amounts reclassified into net income 2,557 10,359
Other comprehensive income/(loss) (28,771) 60,638
Income tax expense/(benefit) (6,617) 13,693
Other comprehensive income/(loss), net of tax (22,154) 46,945
Ending balance 3,606,207 3,429,774
Cash Flow Hedges    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance 3,100 (15,275)
Change in unrealized gain/(loss) (12,122) 658
Amounts reclassified into net income 1,039 8,714
Other comprehensive income/(loss) (11,083) 9,372
Income tax expense/(benefit) (2,549) 2,117
Other comprehensive income/(loss), net of tax (8,534) 7,255
Ending balance (5,434) (8,020)
Available-for-Sale Securities    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (36,563) (131,531)
Change in unrealized gain/(loss) (19,206) 49,621
Amounts reclassified into net income 0 0
Other comprehensive income/(loss) (19,206) 49,621
Income tax expense/(benefit) (4,417) 11,204
Other comprehensive income/(loss), net of tax (14,789) 38,417
Ending balance (51,352) (93,114)
Held-to-Maturity Securities    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (31,122) (36,301)
Change in unrealized gain/(loss) 0 0
Amounts reclassified into net income 1,518 1,645
Other comprehensive income/(loss) 1,518 1,645
Income tax expense/(benefit) 349 372
Other comprehensive income/(loss), net of tax 1,169 1,273
Ending balance (29,953) (35,028)
Total    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance (64,585) (183,107)
Ending balance $ (86,739) $ (136,162)