Allowance for Credit Losses on Loans and Off-Balance Sheet Credit Exposures - Schedule of Modifications Past Due Status (Details) - Commercial Real Estate $ in Thousands	Sep. 30, 2024 USD ($)
Current | Non-revolving residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	$ 15
Current | Non-residential commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	260
Current | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	46
Past Due 30-89 Days | Non-revolving residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	0
Past Due 30-89 Days | Non-residential commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	0
Past Due 30-89 Days | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	0
Past Due 90 Days and Over | Non-revolving residential real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	0
Past Due 90 Days and Over | Non-residential commercial real estate
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	0
Past Due 90 Days and Over | Commercial
Financing Receivable, Allowance for Credit Loss [Line Items]
Performance loans modified	$ 0