Fair Value Measurements - Tables of Financial Instruments Measured At Fair Value on Recurring Basis (Details) - Fair value, recurring basis - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	$ 756,122	$ 684,566
Total liabilities at fair value	13,451	15,399
U.S. Treasuries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	49,190	73,044
Residential mortgage pass-through securities issued or guaranteed by U.S. government agencies or sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	196,530	201,809
Other residential MBS issued or guaranteed by U.S. government agencies or sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	460,496	351,242
Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	80	79
Corporate debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	1,962	1,843
Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	16,765	18,854
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	49,190	73,044
Level 1 \| U.S. Treasuries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	49,190	73,044
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	706,292	611,235
Total liabilities at fair value	13,377	15,284
Level 2 \| Residential mortgage pass-through securities issued or guaranteed by U.S. government agencies or sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	196,530	201,809
Level 2 \| Other residential MBS issued or guaranteed by U.S. government agencies or sponsored enterprises
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	460,496	351,242
Level 2 \| Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	80	79
Level 2 \| Corporate debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	1,962	1,843
Level 2 \| Loans held for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	16,765	18,854
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	640	287
Total liabilities at fair value	74	115
Interest rate swap \| Derivative
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	30,459	37,408
Total liabilities at fair value	13,377	15,284
Interest rate swap \| Level 2 \| Derivative
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	30,459	37,408
Total liabilities at fair value	13,377	15,284
Mortgage banking derivatives \| Derivative
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	640	287
Total liabilities at fair value	74	115
Mortgage banking derivatives \| Level 3 \| Derivative
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	640	287
Total liabilities at fair value	$ 74	$ 115