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Investment Securities - Summary of Held-to-Maturity Securities, Unrealized Losses (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]    
Fair Value, Less than 12 months $ 142,642 $ 165,656
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (4,333) (6,365)
Fair Value, 12 months or more 380,425 360,935
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (87,506) (85,401)
Total Fair Value 523,067 526,591
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (91,839) (91,766)
U.S. Treasury Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Fair Value, Less than 12 months 47,444 47,629
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (1,745) (1,416)
Total Fair Value 47,444 47,629
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (1,745) (1,416)
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member].    
Schedule of Held-to-maturity Securities [Line Items]    
Fair Value, Less than 12 months 69,272 83,323
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (1,554) (3,804)
Fair Value, 12 months or more 206,822 182,159
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (38,481) (37,358)
Total Fair Value 276,094 265,482
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (40,035) (41,162)
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Fair Value, Less than 12 months 25,926 34,704
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (1,034) (1,145)
Fair Value, 12 months or more 173,603 178,776
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (49,025) (48,043)
Total Fair Value 199,529 213,480
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss $ (50,059) $ (49,188)