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Investment Securities - Summary of Unrealized Losses (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value $ 17,427 $ 353,658
Less than 12 months, Unrealized losses (909) (32,220)
12 months or more, Fair Value 640,052 350,749
12 months or more, Unrealized Loss (111,990) (81,254)
Total, Fair Value 657,479 704,407
Total, Unrealized losses (112,899) (113,474)
U.S. Treasury Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value   71,388
Less than 12 months, Unrealized losses   (2,643)
12 months or more, Fair Value 71,575  
12 months or more, Unrealized Loss (2,690)  
Total, Fair Value 71,575 71,388
Total, Unrealized losses (2,690) (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 14,762 83,748
Less than 12 months, Unrealized losses (721) (6,686)
12 months or more, Fair Value 195,368 141,272
12 months or more, Unrealized Loss (36,206) (31,123)
Total, Fair Value 210,130 225,020
Total, Unrealized losses (36,927) (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 671 196,449
Less than 12 months, Unrealized losses (27) (22,809)
12 months or more, Fair Value 373,109 209,477
12 months or more, Unrealized Loss (73,094) (50,131)
Total, Fair Value 373,780 405,926
Total, Unrealized losses (73,121) (72,940)
Municipal Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value 153 153
Less than 12 months, Unrealized losses (2) (2)
Total, Fair Value 153 153
Total, Unrealized losses (2) (2)
Corporate Debt Securities [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Less than 12 months, Fair Value 1,841 1,920
Less than 12 months, Unrealized losses (159) (80)
Total, Fair Value 1,841 1,920
Total, Unrealized losses $ (159) $ (80)