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Fair Value Measurements - Nonrecurring (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Assets and liabilities measured at fair value |  |
Valuation allowance | $ 18,700,000 |
Carrying value of other real estate owned | 407,000 | $ 1,561,000
Impaired Loans [Member] |  |
Assets and liabilities measured at fair value |  |
Valuation allowance |  | 65,300,000
Impaired Loans [Member] | Reported Value Measurement [Member] |  |
Assets and liabilities measured at fair value |  |
Increase (decrease) of specific allocations within the provision for loan losses |  | 12,200,000
Fair Value, Measurements, Nonrecurring [Member] |  |
Assets and liabilities measured at fair value |  |
Total | 63,729,000 | 49,261,000
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] |  |
Assets and liabilities measured at fair value |  |
Total | 63,322,000 | 47,700,000
Valuation allowance | 18,700,000 | 17,600,000
Increase (decrease) of specific allocations within the provision for loan losses | 1,000,000.0 |
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Reported Value Measurement [Member] |  |
Assets and liabilities measured at fair value |  |
Total | 82,000,000.0 |
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned [Member] |  |
Assets and liabilities measured at fair value |  |
Total | 407,000 | 1,561,000
Carrying value of other real estate owned | 407,000 | 1,600,000
Outstanding balance | 525,000 | 2,500,000
OREO Valuation allowance | 118,000 | 856,000
OREO participations |  | 131,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Assets and liabilities measured at fair value |  |
Total | 63,729,000 | 49,261,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member] |  |
Assets and liabilities measured at fair value |  |
Total | 63,322,000 | 47,700,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Other Real Estate Owned [Member] |  |
Assets and liabilities measured at fair value |  |
Total | $ 407,000 | $ 1,561,000

X
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