Fair Value of Financial Instruments - Hierarchy Table on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financial assets
Investment securities available-for-sale, at fair value	$ 1,154,021	$ 1,140,071
Total derivative assets	46,368	44,939
Financial liabilities
Total derivative liabilities	12,369	13,603
U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	564,939	539,256
Agency
Financial assets
Investment securities available-for-sale, at fair value	1,670	1,868
Corporate
Financial assets
Investment securities available-for-sale, at fair value	438,882	446,343
Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	148,530	152,604
Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	631	759
Total derivative assets	8	1
Financial liabilities
Total derivative liabilities	0	10
Level 2
Financial assets
Investment securities available-for-sale, at fair value	1,154,021	1,140,071
Equity securities	0	0
Total derivative assets	6,488	5,643
Financial liabilities
Total derivative liabilities	12,019	10,705
Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	0	0
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring
Financial assets
Investment securities available-for-sale, at fair value	1,154,021	1,140,071
Equity securities	631	759
Total derivative assets	6,496	5,644
Financial liabilities
Total derivative liabilities	12,019	10,715
Recurring | Foreign exchange contracts
Financial assets
Total derivative assets	8	1
Financial liabilities
Total derivative liabilities		10
Recurring | Interest rate swaps contracts
Financial assets
Total derivative assets	6,488	5,643
Financial liabilities
Total derivative liabilities	12,019	10,705
Recurring | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	564,939	539,256
Recurring | Agency
Financial assets
Investment securities available-for-sale, at fair value	1,670	1,868
Recurring | Corporate
Financial assets
Investment securities available-for-sale, at fair value	438,882	446,343
Recurring | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	148,530	152,604
Recurring | Level 1
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	631	759
Total derivative assets	8	1
Financial liabilities
Total derivative liabilities	0	10
Recurring | Level 1 | Foreign exchange contracts
Financial assets
Total derivative assets	8	1
Financial liabilities
Total derivative liabilities		10
Recurring | Level 1 | Interest rate swaps contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 1 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 1 | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 2
Financial assets
Investment securities available-for-sale, at fair value	1,154,021	1,140,071
Equity securities	0	0
Total derivative assets	6,488	5,643
Financial liabilities
Total derivative liabilities	12,019	10,705
Recurring | Level 2 | Foreign exchange contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities		0
Recurring | Level 2 | Interest rate swaps contracts
Financial assets
Total derivative assets	6,488	5,643
Financial liabilities
Total derivative liabilities	12,019	10,705
Recurring | Level 2 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	564,939	539,256
Recurring | Level 2 | Agency
Financial assets
Investment securities available-for-sale, at fair value	1,670	1,868
Recurring | Level 2 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	438,882	446,343
Recurring | Level 2 | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	148,530	152,604
Recurring | Level 3
Financial assets
Investment securities available-for-sale, at fair value	0	0
Equity securities	0	0
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 3 | Foreign exchange contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities		0
Recurring | Level 3 | Interest rate swaps contracts
Financial assets
Total derivative assets	0	0
Financial liabilities
Total derivative liabilities	0	0
Recurring | Level 3 | U.S. Treasury
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Agency
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Corporate
Financial assets
Investment securities available-for-sale, at fair value	0	0
Recurring | Level 3 | Collateralized mortgage obligations
Financial assets
Investment securities available-for-sale, at fair value	$ 0	$ 0