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Derivative Financial Instruments - Summary of Fair Value of Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Designated as Hedging Instrument    
Derivative [Line Items]    
Assets $ 18,681 $ 4,155
Liabilities 2,780 11,196
Designated as Hedging Instrument | Cash flow hedges | Interest rate swaps, collars, and floors on loan pools    
Derivative [Line Items]    
Notional 1,900,000 1,900,000
Assets 13,401 3,490
Liabilities 2,780 11,196
Designated as Hedging Instrument | Cash flow hedges | Interest rate swaps on borrowings    
Derivative [Line Items]    
Notional 50,000 150,000
Assets 0 0
Liabilities 0 0
Designated as Hedging Instrument | Fair value hedges | Interest rate swaps on borrowings    
Derivative [Line Items]    
Notional 1,100,000 1,100,000
Assets 5,280 665
Liabilities 0 0
Designated as Hedging Instrument | Fair value hedges | Interest rate swaps on investment securities    
Derivative [Line Items]    
Notional 927,407 927,407
Assets 0 0
Liabilities 0 0
Not Designated as Hedging Instrument    
Derivative [Line Items]    
Assets 159,383 142,323
Liabilities 285,909 233,117
Not Designated as Hedging Instrument | Interest rate lock commitments    
Derivative [Line Items]    
Notional 105,050 57,380
Assets 903 0
Liabilities 0 166
Not Designated as Hedging Instrument | Forward mortgage loan contracts    
Derivative [Line Items]    
Notional 177,471 88,808
Assets 0 807
Liabilities 837 0
Not Designated as Hedging Instrument | Customer interest rate swaps    
Derivative [Line Items]    
Notional 9,023,697 6,255,123
Assets 67,990 12,827
Liabilities 216,304 219,926
Not Designated as Hedging Instrument | Counterparty interest rate swaps    
Derivative [Line Items]    
Notional 9,023,697 6,255,123
Assets 89,996 128,469
Liabilities 68,362 12,902
Not Designated as Hedging Instrument | Customer foreign currency contracts    
Derivative [Line Items]    
Notional 10,044 10,265
Assets 445 28
Liabilities 39 121
Not Designated as Hedging Instrument | Counterparty foreign currency contracts    
Derivative [Line Items]    
Notional 10,175 10,093
Assets 49 192
Liabilities $ 367 $ 2