Fair Value - Fair Value of Assets Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financial Assets
Debt securities available-for-sale	$ 2,627,959	$ 2,226,543
OREO	7,176	6,421
Fair Value, Measurements, Recurring
Financial Assets
Debt securities available-for-sale	2,627,959	2,226,543
Derivative financial instruments	26,973	28,741
Loans held for sale	16,016	17,277
Equity securities	13,717	13,521
Financial Liabilities
Derivative financial instruments	26,864	28,305
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets
Debt securities available-for-sale	197	196
Derivative financial instruments	0	0
Loans held for sale	0	0
Equity securities	13,717	13,521
Financial Liabilities
Derivative financial instruments	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Financial Assets
Debt securities available-for-sale	2,627,762	2,226,347
Derivative financial instruments	26,973	28,741
Loans held for sale	16,016	17,277
Equity securities	0	0
Financial Liabilities
Derivative financial instruments	26,864	28,305
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Financial Assets
Debt securities available-for-sale	0	0
Derivative financial instruments	0	0
Loans held for sale	0	0
Equity securities	0	0
Financial Liabilities
Derivative financial instruments	0	0
Fair Value, Measurements, Nonrecurring
Financial Assets
Loans	1,950	1,839
OREO	7,176	6,421
Fair Value, Measurements, Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Financial Assets
Loans	0	0
OREO	0	0
Fair Value, Measurements, Nonrecurring | Significant Other Observable Inputs (Level 2)
Financial Assets
Loans	0	0
OREO	0	0
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Financial Assets
Loans	1,950	1,839
OREO	$ 7,176	$ 6,421