Fair Value - Fair Value of Assets Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Financial Assets
Debt securities AFS	$ 5,164,567	$ 2,226,543
OREO	4,250	6,421
MSR	28,061	0
Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets
Debt securities AFS	200	196
Significant Other Observable Inputs (Level 2)
Financial Assets
Debt securities AFS	5,164,367	2,226,347
Significant Unobservable Inputs (Level 3)
Financial Assets
Debt securities AFS	0	0
Fair Value, Measurements, Recurring
Financial Assets
Derivative financial instruments	28,620	28,741
Loans held for sale	16,297	17,277
Equity securities	13,923	13,521
MSR	28,061
Financial Liabilities
Derivative financial instruments	25,483	28,305
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets
Derivative financial instruments	0	0
Loans held for sale	0	0
Equity securities	13,923	13,521
MSR	0
Financial Liabilities
Derivative financial instruments	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Financial Assets
Derivative financial instruments	28,125	28,741
Loans held for sale	16,297	17,277
Equity securities	0	0
MSR	0
Financial Liabilities
Derivative financial instruments	25,389	28,305
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Financial Assets
Derivative financial instruments	495	0
Loans held for sale	0	0
Equity securities	0	0
MSR	28,061
Financial Liabilities
Derivative financial instruments	94	0
Fair Value, Measurements, Nonrecurring
Financial Assets
Loans		1,839
OREO	4,250	6,421
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets
Loans		0
OREO	0	0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2)
Financial Assets
Loans		0
OREO	0	0
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Financial Assets
Loans		1,839
OREO	$ 4,250	$ 6,421