Fair Value of Financial Instruments - Narrative (Details) - Level 3 - Non-recurring - Management discount on appraised values - Market price or appraised value	Sep. 30, 2020	Jun. 30, 2020
Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Impaired loans	0.05	0.05
Other real estate owned, net	0.05	0.05
Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Impaired loans	0.15	0.15
Other real estate owned, net	0.15	0.15