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Investment Securities - Summary of Available-for-Sale Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 772,243	$ 819,762
Gross unrealized gains	3	1
Gross unrealized losses	(112,899)	(113,474)
Fair Value	659,347	706,289
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	74,265	74,031
Gross unrealized losses	(2,690)	(2,643)
Fair Value	71,575	71,388
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]
Amortized cost	248,129	263,939
Gross unrealized gains	3	1
Gross unrealized losses	(36,927)	(37,809)
Fair Value	211,205	226,131
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	446,901	478,866
Gross unrealized losses	(73,121)	(72,940)
Fair Value	373,780	405,926
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	155	155
Gross unrealized losses	(2)	(2)
Fair Value	153	153
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	2,000	2,000
Gross unrealized losses	(159)	(80)
Fair Value	1,841	1,920
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	793	771
Fair Value	$ 793	$ 771

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