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Investment Securities - Securities Available for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 2,575,393	$ 2,526,644
Gross Unrealized Gains	3,149	699
Gross Unrealized Losses	244,484	280,504
Fair Value	2,334,058	2,246,839
Interest Receivable	13,000	12,600
Agency residential MBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,033,674	1,051,601
Gross Unrealized Gains	0	0
Gross Unrealized Losses	166,632	189,761
Fair Value	867,042	861,840
Agency commercial MBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	62,126	52,610
Gross Unrealized Gains	0	0
Gross Unrealized Losses	922	1,046
Fair Value	61,204	51,564
Agency residential CMOs
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	579,676	467,319
Gross Unrealized Gains	2,541	223
Gross Unrealized Losses	17,149	20,911
Fair Value	565,068	446,631
Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	602	602
Gross Unrealized Gains	0	0
Gross Unrealized Losses	5	8
Fair Value	597	594
Collateralized loan obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	243,485	278,976
Gross Unrealized Gains	59	469
Gross Unrealized Losses	659	29
Fair Value	242,885	279,416
Corporate Debt Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	289,077	289,098
Gross Unrealized Gains	423	0
Gross Unrealized Losses	26,097	31,386
Fair Value	263,403	257,712
Private label commercial MBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	12,533	13,585
Gross Unrealized Gains	0	0
Gross Unrealized Losses	1,087	1,213
Fair Value	11,446	12,372
SBA securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,123	4,564
Gross Unrealized Gains	0	0
Gross Unrealized Losses	261	364
Fair Value	3,862	4,200
Private Label Collateralized Mortgage Obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	334,859	352,615
Gross Unrealized Gains	126	7
Gross Unrealized Losses	31,658	35,712
Fair Value	303,327	316,910
Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	15,238	15,674
Gross Unrealized Gains	0	0
Gross Unrealized Losses	14	74
Fair Value	$ 15,224	$ 15,600

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- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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