Fair Value - Fair Value Measurements for Items Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Assets
Available-for-sale debt securities	$ 1,836,020	$ 1,871,742
Other real estate owned	7,560	2,301
Fair Value, Measurements, Recurring
Financial Assets
Available-for-sale debt securities	1,836,020	1,871,742
Derivative financial instruments	31,481	23,142
Loans held for sale	4,391	3,151
Equity securities	13,623	8,220
Financial Liabilities
Derivative financial instruments	28,879	23,142
Fair Value, Measurements, Recurring | Level 1
Financial Assets
Available-for-sale debt securities	192	186
Derivative financial instruments	0	0
Loans held for sale	0	0
Equity securities	13,623	8,220
Financial Liabilities
Derivative financial instruments	0	0
Fair Value, Measurements, Recurring | Level 2
Financial Assets
Available-for-sale debt securities	1,835,828	1,871,556
Derivative financial instruments	31,481	23,142
Loans held for sale	4,391	3,151
Equity securities	0	0
Financial Liabilities
Derivative financial instruments	28,879	23,142
Fair Value, Measurements, Recurring | Level 3
Financial Assets
Available-for-sale debt securities	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	15,242	8,513
Other real estate owned	7,560	2,301
Fair Value, Measurements, Nonrecurring | Level 1
Financial Assets
Loans	0	0
Other real estate owned	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Financial Assets
Loans	0	1,183
Other real estate owned	0	2,301
Fair Value, Measurements, Nonrecurring | Level 3
Financial Assets
Loans	15,242	7,330
Other real estate owned	$ 7,560	$ 0