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Investment Securities - Summary of Unrealized Losses (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value $ 143,408 $ 353,658
Less than 12 months, Unrealized losses (5,960) (32,220)
12 months or more, Fair Value 548,144 350,749
12 months or more, Unrealized Loss (95,844) (81,254)
Total, Fair Value 691,552 704,407
Total, Unrealized losses (101,804) (113,474)
U.S. Treasury Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value 72,153 71,388
Less than 12 months, Unrealized losses (1,994) (2,643)
Total, Fair Value 72,153 71,388
Total, Unrealized losses (1,994) (2,643)
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 43,304 83,748
Less than 12 months, Unrealized losses (2,112) (6,686)
12 months or more, Fair Value 175,914 141,272
12 months or more, Unrealized Loss (31,964) (31,123)
Total, Fair Value 219,218 225,020
Total, Unrealized losses (34,076) (37,809)
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 25,905 196,449
Less than 12 months, Unrealized losses (1,745) (22,809)
12 months or more, Fair Value 372,230 209,477
12 months or more, Unrealized Loss (63,880) (50,131)
Total, Fair Value 398,135 405,926
Total, Unrealized losses (65,625) (72,940)
Municipal Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value 154 153
Less than 12 months, Unrealized losses (1) (2)
Total, Fair Value 154 153
Total, Unrealized losses (1) (2)
Corporate Debt Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value 1,892 1,920
Less than 12 months, Unrealized losses (108) (80)
Total, Fair Value 1,892 1,920
Total, Unrealized losses $ (108) $ (80)