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Investment Securities - Summary of Held-to-Maturity Securities, Unrealized Losses (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
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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)

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