Debt Securities Available for Sale - Schedule of Debt Securities, Available-for-Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,353,298	$ 1,251,230
Gross Unrealized Gains	226	946
Gross Unrealized (Losses)	(166,084)	(158,619)
Debt securities available for sale	1,187,440	1,093,557
U.S. government and agency obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	239,128	146,387
Gross Unrealized Gains	225	924
Gross Unrealized (Losses)	(2,319)	(1,810)
Debt securities available for sale	237,034	145,501
Mortgage-backed securities and collateralized mortgage obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,018,854	1,009,508
Gross Unrealized Gains	1	20
Gross Unrealized (Losses)	(149,638)	(141,943)
Debt securities available for sale	869,217	867,585
Municipal obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,768	2,770
Gross Unrealized Gains	0	0
Gross Unrealized (Losses)	(60)	(68)
Debt securities available for sale	2,708	2,702
Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	92,548	92,565
Gross Unrealized Gains	0	2
Gross Unrealized (Losses)	(14,067)	(14,798)
Debt securities available for sale	$ 78,481	$ 77,769