Fair Value Measurements - Additional Qualitative Information About Level 3 Assets (Details) $ in Thousands	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Appraisal adjustments | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value estimate, percentage	0.00	0.00
Appraisal adjustments | Weighted Average | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value estimate, percentage	0.00	0.00
Liquidation expense | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value estimate, percentage	0.2056	0.073
Liquidation expense | Weighted Average | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value estimate, percentage	0.2056	0.073
Impaired loans | Fair Value, Nonrecurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value estimate	$ 338	$ 350
Impaired loans | Fair Value, Nonrecurring | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value estimate	$ 338	$ 350