Investment Securities - Summary of Credit Quality Indicators of Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	$ 685,666	$ 628,829
AAA
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	682,907	626,095
Not Rated
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	2,759	2,734
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	72,651	73,044
U.S. Treasury Securities [Member] \| AAA
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	72,651	73,044
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)	193,576	201,809
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)	193,576	201,809
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)	416,680	351,242
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)	416,680	351,242
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	79	79
Municipal Securities [Member] \| Not Rated
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	79	79
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	1,870	1,843
Corporate Debt Securities [Member] \| Not Rated
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	1,870	1,843
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	810	812
Other Securities [Member] \| Not Rated
Schedule of Available-for-sale Securities [Line Items]
Investment securities available-for-sale (at fair value)	$ 810	$ 812