Debt Securities Available for Sale - Schedule of Debt Securities, Available-for-Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,395,502	$ 1,251,230
Gross Unrealized Gains	4,526	946
Gross Unrealized (Losses)	(127,564)	(158,619)
Debt securities available for sale, at fair value	1,272,464	1,093,557
U.S. government and agency obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	272,913	146,387
Gross Unrealized Gains	3,690	924
Gross Unrealized (Losses)	(1,133)	(1,810)
Debt securities available for sale, at fair value	275,470	145,501
Mortgage-backed securities and collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,022,232	1,009,508
Gross Unrealized Gains	809	20
Gross Unrealized (Losses)	(113,471)	(141,943)
Debt securities available for sale, at fair value	909,570	867,585
Municipal obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,845	2,770
Gross Unrealized Gains	0	0
Gross Unrealized (Losses)	(27)	(68)
Debt securities available for sale, at fair value	2,818	2,702
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	97,512	92,565
Gross Unrealized Gains	27	2
Gross Unrealized (Losses)	(12,933)	(14,798)
Debt securities available for sale, at fair value	$ 84,606	$ 77,769