Investment Securities - Summary of Credit Quality Indicators of Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	$ 628,829	$ 706,289
AAA
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	626,095	703,445
Not Rated
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	2,734	2,844
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	73,044	71,388
U.S. Treasury Securities [Member] \| AAA
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	73,044	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]
Investment securities available-for-sale (at fair value)	201,809	226,131
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]. \| AAA
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	201,809	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]
Investment securities available-for-sale (at fair value)	351,242	405,926
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] \| AAA
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	351,242	405,926
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	79	153
Municipal Securities [Member] \| Not Rated
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	79	153
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	1,843	1,920
Corporate Debt Securities [Member] \| Not Rated
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	1,843	1,920
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	812	771
Other Securities [Member] \| Not Rated
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	$ 812	$ 771