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Investment Securities - Summary of Available-for-Sale Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 797,271	$ 819,762
Gross unrealized gains	18	1
Gross unrealized losses	(101,804)	(113,474)
Fair Value	695,485	706,289
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	74,148	74,031
Gross unrealized losses	(1,994)	(2,643)
Fair Value	72,154	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	256,267	263,939
Gross unrealized gains	18	1
Gross unrealized losses	(34,076)	(37,809)
Fair Value	222,209	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	463,907	478,866
Gross unrealized losses	(65,625)	(72,940)
Fair Value	398,282	405,926
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	155	155
Gross unrealized losses	(1)	(2)
Fair Value	154	153
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	2,000	2,000
Gross unrealized losses	(108)	(80)
Fair Value	1,892	1,920
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	794	771
Fair Value	$ 794	$ 771

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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