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Derivative Financial Instruments Notional Amounts and Fair Values of Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Derivative [Line Items]    
Derivative asset, fair value $ 139,989 $ 159,250
Derivative liability, gross liability (209,574) (254,332)
Interest Rate Lock Commitments [Member]    
Derivative [Line Items]    
Derivative asset, notional amount 212,169 171,933
Derivative liability, notional amount 668 3,888
Derivative asset, fair value 852 389
Derivative liability, gross liability (2) (58)
Forward Commitments [Member]    
Derivative [Line Items]    
Derivative asset, notional amount 0 51,250
Derivative liability, notional amount 44,185 0
Derivative asset, fair value 0 363
Derivative liability, gross liability (471) 0
Interest Rate Swap with Customer [Member]    
Derivative [Line Items]    
Derivative asset, notional amount 1,275,789 767,905
Derivative liability, notional amount 3,454,753 3,976,294
Derivative asset, fair value 24,899 8,480
Derivative liability, gross liability (183,590) (239,058)
Interest Rate Swap With Counterparty [Member]    
Derivative [Line Items]    
Derivative asset, notional amount 3,454,753 3,976,294
Derivative liability, notional amount 1,275,789 767,905
Derivative asset, fair value 110,551 150,480
Derivative liability, gross liability (25,265) (10,734)
Balance Sheet Hedging Instruments    
Derivative [Line Items]    
Derivative asset, notional amount 2,250,000 2,500,000
Derivative liability, notional amount 1,150,000 1,400,000
Derivative asset, fair value 4,011 227
Derivative liability, gross liability (537) (2,971)
Foreign Exchange Contracts With Customer [Member]    
Derivative [Line Items]    
Derivative asset, notional amount 14,517 28,327
Derivative liability, notional amount 12,352 693
Derivative asset, fair value 245 1,619
Derivative liability, gross liability (393) (27)
Foreign Exchange Contracts With Correspondent Banks [Member]    
Derivative [Line Items]    
Derivative asset, notional amount 17,903 4,059
Derivative liability, notional amount 12,100 32,406
Derivative asset, fair value 528 63
Derivative liability, gross liability $ (182) $ (1,569)