Investment Securities - Summary of Debt Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 689,214	$ 719,117
Gross Unrealized Gains	50	38
Gross Unrealized Losses	(37,114)	(42,126)
Allowance for Credit Losses	0	0
Fair Value	652,150	677,029
Schedule of Held-to-maturity Securities [Line Items]
Allowance for credit losses	0	0
Total securities held to maturity, net of ACL	36,750	36,750
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(4,517)	(4,111)
Fair Value	32,233	32,639
U.S. Treasury and government sponsored entities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	614,215	634,582
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(35,580)	(39,422)
Allowance for Credit Losses	0	0
Fair Value	578,635	595,161
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	820	820
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(11)	(25)
Allowance for Credit Losses	0	0
Fair Value	809	795
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	14,015	24,281
Gross Unrealized Gains	50	37
Gross Unrealized Losses	(587)	(674)
Allowance for Credit Losses	0	0
Fair Value	13,478	23,644
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	36,750	36,750
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(4,517)	(4,111)
Fair Value	32,233	32,639
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	60,164	59,434
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(936)	(2,005)
Allowance for Credit Losses	0	0
Fair Value	$ 59,228	$ 57,429