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Investment Securities - Summary of Held-to-Maturity Securities, Unrealized Losses (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]    
Fair Value, Less than 12 months $ 120,333 $ 165,656
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (3,141) (6,365)
Fair Value, 12 months or more 381,328 360,935
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (80,081) (85,401)
Total Fair Value 501,661 526,591
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (83,222) (91,766)
U.S. Treasury Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Fair Value, Less than 12 months 48,141 47,629
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (976) (1,416)
Total Fair Value 48,141 47,629
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (976) (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 48,855 83,323
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (1,481) (3,804)
Fair Value, 12 months or more 195,980 182,159
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (35,798) (37,358)
Total Fair Value 244,835 265,482
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (37,279) (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 23,337 34,704
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (684) (1,145)
Fair Value, 12 months or more 185,348 178,776
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (44,283) (48,043)
Total Fair Value 208,685 213,480
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss $ (44,967) $ (49,188)