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Stockholders' Equity (Line Items in Consolidated Income Statements Affected by Amounts Reclassified from Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Amortization of defined benefit pension and post-retirement items $ 17,231 $ 28,191 $ (13,325)
Employee Benefit Plans [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Amortization of defined benefit pension and post-retirement items 17,231 28,191 $ (13,325)
Reclassification out of Accumulated Other Comprehensive Income [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Total reclassifications, net of tax (27,738) (42,670)  
Reclassification out of Accumulated Other Comprehensive Income [Member] | Held to Maturity Securities Transferred from AFS [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Amortization of unrealized net loss on securities transferred to HTM (1,580) (1,670)  
Tax effect 367 356  
Net of tax (1,213) (1,314)  
Reclassification out of Accumulated Other Comprehensive Income [Member] | Available for Sale Securities [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Loss on sale of AFS securities (410) 0  
Tax effect 94 0  
Net of tax (316) 0  
Reclassification out of Accumulated Other Comprehensive Income [Member] | Employee Benefit Plans [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Amortization of defined benefit pension and post-retirement items (3,281) (4,888)  
Tax effect 756 1,072  
Net of tax (2,525) (3,816)  
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Reclassification of unrealized loss on cash flow hedges (27,619) (45,537)  
Tax effect 6,268 9,882  
Net of tax (21,351) (35,655)  
Amortization of loss on terminated cash flow hedges $ (6,123) $ (2,407)  
OCI, Cash Flow Hedge, Reclassification for Discontinuance, Statement of Income or Comprehensive Income [Extensible Enumeration] Interest and Dividend Income, Operating Interest and Dividend Income, Operating  
Tax effect $ 1,390 $ 522  
Net of tax (4,733) (1,885)  
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains and Losses on Equity Method Investment [Member]      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Reclassification of unrealized gain on equity method investment 2,400 0  
Tax effect 0 0  
Net of Tax $ 2,400 $ 0