Investment Securities - Schedule of contractual maturity of debt securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Investment [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 1,854,852	$ 1,727,363
Debt Securities, Available-for-sale	1,733,696	1,754,140
Obligations of States and Political Subdivisions
Investment [Line Items]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	271,564
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	$ 271,658
Debt Securities, Available-for-sale, Maturity, after Five Through Ten Years, Weighted Average Yield	3.68%
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost	$ 149,432
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value	$ 132,775
Debt Securities, Available-for-sale, Maturity, after 10 Years, Weighted Average Yield	3.15%
Debt Securities, Available-for-sale, Amortized Cost	$ 423,285	366,933
Debt Securities, Available-for-sale	$ 406,711	389,591
Available for Sale Securities Weighted Avg Yield	3.49%
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five	$ 2,289
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five	$ 2,278
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five	2.97%
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Investment [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 839,399	849,114
Debt Securities, Available-for-sale	$ 756,761	854,463
Debt Securities, Available-for-Sale, Weighted Average Yield	1.91%
Corporate Debt Securities
Investment [Line Items]
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost	$ 17,650
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value	$ 16,472
Debt Securities, Available-for-sale, Maturity, after Five Through Ten Years, Weighted Average Yield	3.89%
Debt Securities, Available-for-sale, Amortized Cost	$ 17,650	11,250
Debt Securities, Available-for-sale	16,472	11,412
Collateralized Loan Obligations
Investment [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	535,518	500,066
Debt Securities, Available-for-sale	$ 516,539	$ 498,674
Debt Securities, Available-for-Sale, Weighted Average Yield	6.30%
US Government-sponsored Enterprises Debt Securities
Investment [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	$ 39,000
Debt Securities, Available-for-sale	37,213
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five	39,000
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five	$ 37,213
Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five	2.37%

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