Credit Quality and Allowance for Credit Losses - Summary of Loans, Net of Unearned Income (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 2,774,864	$ 2,744,023
Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,283,125	2,283,460
Other loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	491,739	460,563
One- to four-family first mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	469,700	493,446
One- to four-family first mortgage \| Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	469,700	493,446
Home equity loans and lines
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	91,279	92,574
Home equity loans and lines \| Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	91,279	92,574
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,224,277	1,190,388
Commercial real estate \| Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,224,277	1,190,388
Construction and land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	303,735	329,227
Construction and land \| Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	303,735	329,227
Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	194,134	177,825
Multi-family residential \| Real estate loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	194,134	177,825
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	462,665	430,517
Commercial and industrial \| Other loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	462,665	430,517
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	29,074	30,046
Consumer \| Other loans:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 29,074	$ 30,046