Fair Value Measurements - Summary of Quantitative Information About Non-recurring Level 3 Fair Value Measurements (Details) $ in Thousands	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Fair Value Measurements, Nonrecurring Basis
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	$ 293	$ 1,224
Fair Value Measurements, Nonrecurring Basis | Other Real Estate Owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	293	1,101
Fair Value Measurements Using Level 3 | Fair Value Measurements, Nonrecurring Basis
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	293	1,224
Fair Value Measurements Using Level 3 | Fair Value Measurements, Nonrecurring Basis | Other Real Estate Owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	$ 293	$ 1,101
Fair Value Measurements Using Level 3 | Third Party Appraisals | Other Real Estate Owned | Measurement Input, Comparability Adjustment
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Adjustment	29	16
Fair Value Measurements Using Level 3 | Third Party Appraisals | Other Real Estate Owned | Measurement Input, Comparability Adjustment | Weighted Average
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair Value Adjustment	29	16
Fair Value Measurements Using Level 3 | Third Party Appraisals | Fair Value Measurements, Nonrecurring Basis | Other Real Estate Owned
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	$ 293	$ 1,101