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Investment Securities - Summary of Held-to-Maturity Securities, Unrealized Losses (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Schedule of Held-to-maturity Securities [Line Items]    
Fair Value, Less than 12 months $ 42,279 $ 16,978
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (436) (109)
Fair Value, 12 months or more 439,590 452,822
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (84,680) (80,843)
Total Fair Value 481,869 469,800
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (85,116) (80,952)
U.S. Treasury Securities [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Fair Value, 12 months or more 48,189 48,334
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (1,223) (1,004)
Total Fair Value 48,189 48,334
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (1,223) (1,004)
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 39,333 14,689
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (383) (72)
Fair Value, 12 months or more 210,673 217,467
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (36,195) (34,480)
Total Fair Value 250,006 232,156
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss (36,578) (34,552)
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 2,946 2,289
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss (53) (37)
Fair Value, 12 months or more 180,728 187,021
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (47,262) (45,359)
Total Fair Value 183,674 189,310
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss $ (47,315) $ (45,396)