v3.26.1
Investment Securities - Schedule of Unrealized Losses on Securities Available-for-Sale (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value $ 2,152,246 $ 94,936
Less than 12 months, gross unrealized losses (20,154) (131)
12 months or more, fair value 1,213,045 1,295,898
12 months or more, gross unrealized losses (191,910) (196,759)
Fair value, total 3,365,291 1,390,834
Gross unrealized losses, total (212,064) (196,890)
Agency residential MBS    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or more, fair value 788,640 834,085
12 months or more, gross unrealized losses (140,077) (138,076)
Fair value, total 788,640 834,085
Gross unrealized losses, total (140,077) (138,076)
U.S. Treasury securities    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 124,513  
Less than 12 months, gross unrealized losses (99)  
12 months or more, fair value 0  
12 months or more, gross unrealized losses 0  
Fair value, total 124,513  
Gross unrealized losses, total (99)  
Agency commercial MBS    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 117,322 4,994
Less than 12 months, gross unrealized losses (794) (6)
12 months or more, fair value 32,250 32,006
12 months or more, gross unrealized losses (693) (1,094)
Fair value, total 149,572 37,000
Gross unrealized losses, total (1,487) (1,100)
Agency residential CMOs    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 1,757,288 70,270
Less than 12 months, gross unrealized losses (12,802) (117)
12 months or more, fair value 86,876 101,501
12 months or more, gross unrealized losses (15,166) (15,183)
Fair value, total 1,844,164 171,771
Gross unrealized losses, total (27,968) (15,300)
Corporate debt securities    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 35,659 0
Less than 12 months, gross unrealized losses (5,841) 0
12 months or more, fair value 173,652 188,545
12 months or more, gross unrealized losses (8,600) (15,441)
Fair value, total 209,311 188,545
Gross unrealized losses, total (14,441) (15,441)
Private label residential CMOs    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 99,584 19,672
Less than 12 months, gross unrealized losses (598) (8)
12 months or more, fair value 121,078 127,020
12 months or more, gross unrealized losses (26,757) (26,326)
Fair value, total 220,662 146,692
Gross unrealized losses, total (27,355) (26,334)
Collateralized loan obligations    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 17,880  
Less than 12 months, gross unrealized losses (20)  
12 months or more, fair value 0  
12 months or more, gross unrealized losses 0  
Fair value, total 17,880  
Gross unrealized losses, total (20)  
Private label commercial MBS    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or more, fair value 7,511 9,279
12 months or more, gross unrealized losses (435) (467)
Fair value, total 7,511 9,279
Gross unrealized losses, total (435) (467)
SBA securities    
Debt Securities, Available-for-sale [Line Items]    
Less than 12 months, fair value 0 0
Less than 12 months, gross unrealized losses 0 0
12 months or more, fair value 3,038 3,462
12 months or more, gross unrealized losses (182) (172)
Fair value, total 3,038 3,462
Gross unrealized losses, total $ (182) $ (172)