XML 146 R131.htm IDEA: XBRL DOCUMENT v3.25.4
Shareholders' Equity - Changes in Balances of Component of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance $ 1,962,327 $ 1,661,847 $ 1,492,268
Other comprehensive income (loss) before reclassification 62,846 (14,888) 43,185
Amounts reclassified from accumulated other comprehensive income (loss) 7,188 150,952 12,495
Other comprehensive income (loss), net of tax amount 70,034 136,064 55,680
Balance 2,121,677 1,962,327 1,661,847
Securities Available for Sale and Transferred Securities [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance (66,885) (204,670) (254,442)
Other comprehensive income (loss) before reclassification 56,367 691 49,801
Amounts reclassified from accumulated other comprehensive income (loss) 0 137,094 (29)
Other comprehensive income (loss), net of tax amount 56,367 137,785 49,772
Balance (10,518) (66,885) (204,670)
Defined Benefit Pension Items [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance (4,721) (6,075) (5,792)
Other comprehensive income (loss) before reclassification (495) 1,095 (518)
Amounts reclassified from accumulated other comprehensive income (loss) 47 259 235
Other comprehensive income (loss), net of tax amount (448) 1,354 (283)
Balance (5,169) (4,721) (6,075)
Cash Flow Hedge Derivatives [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance (12,053) (8,978) (15,169)
Other comprehensive income (loss) before reclassification 6,974 (16,674) (6,098)
Amounts reclassified from accumulated other comprehensive income (loss) 7,141 13,599 12,289
Other comprehensive income (loss), net of tax amount 14,115 (3,075) 6,191
Balance 2,062 (12,053) (8,978)
Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance (83,659) (219,723) (275,403)
Balance $ (13,625) $ (83,659) $ (219,723)