Disclosures about Fair Value of Financial Instruments - Unobservable Inputs (Details) - Fair Value, Nonrecurring $ in Thousands	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Financial Assets
Collateral-dependent impaired loans	$ 24,679	$ 20,889
Unobservable Inputs (Level 3)
Financial Assets
Collateral-dependent impaired loans	$ 24,679	$ 20,889
Unobservable Inputs (Level 3) | Marketability discount | Market comparable properties | Minimum
Financial Assets
Collateral-dependent impaired loans, measurement input	0.10	0.10
Unobservable Inputs (Level 3) | Marketability discount | Market comparable properties | Maximum
Financial Assets
Collateral-dependent impaired loans, measurement input	0.15	0.15
Unobservable Inputs (Level 3) | Marketability discount | Market comparable properties | Average
Financial Assets
Collateral-dependent impaired loans, measurement input	0.12	0.12