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Investment Securities - Summary of Unrealized Losses (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value $ 38,658 $ 147
Less than 12 months, Unrealized losses (313) (1)
12 months or more, Fair Value 576,323 625,070
12 months or more, Unrealized Loss (102,829) (99,046)
Total, Fair Value 614,981 625,217
Total, Unrealized losses (103,142) (99,047)
U.S. Treasury Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
12 months or more, Fair Value 48,133 73,044
12 months or more, Unrealized Loss (1,479) (1,464)
Total, Fair Value 48,133 73,044
Total, Unrealized losses (1,479) (1,464)
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member].    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value   9
12 months or more, Fair Value 190,255 199,000
12 months or more, Unrealized Loss (32,974) (31,512)
Total, Fair Value 190,255 199,009
Total, Unrealized losses (32,974) (31,512)
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value 38,658 138
Less than 12 months, Unrealized losses (313) (1)
12 months or more, Fair Value 335,986 351,104
12 months or more, Unrealized Loss (68,245) (65,912)
Total, Fair Value 374,644 351,242
Total, Unrealized losses (68,558) (65,913)
Municipal Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
12 months or more, Fair Value 79 79
12 months or more, Unrealized Loss (1) (1)
Total, Fair Value 79 79
Total, Unrealized losses (1) (1)
Corporate Debt Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
12 months or more, Fair Value 1,870 1,843
12 months or more, Unrealized Loss (130) (157)
Total, Fair Value 1,870 1,843
Total, Unrealized losses $ (130) $ (157)