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Investment Securities - Summary of Available-for-Sale Investment Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 789,933	$ 727,819
Gross unrealized gains	1,725	57
Gross unrealized losses	(82,671)	(99,047)
Fair Value	708,987	628,829
U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	49,757	74,508
Gross unrealized losses	(567)	(1,464)
Fair Value	49,190	73,044
Residential mortgage pass-through securities issued or guaranteed by U.S. government agencies or sponsored enterprises
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	222,443	233,264
Gross unrealized gains	445	57
Gross unrealized losses	(26,358)	(31,512)
Fair Value	196,530	201,809
Other residential MBS issued or guaranteed by U.S. government agencies or sponsored enterprises
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	514,924	417,155
Gross unrealized gains	1,280
Gross unrealized losses	(55,708)	(65,913)
Fair Value	460,496	351,242
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	80	80
Gross unrealized losses		(1)
Fair Value	80	79
Corporate debt
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	2,000	2,000
Gross unrealized losses	(38)	(157)
Fair Value	1,962	1,843
Other securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	729	812
Fair Value	$ 729	$ 812

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