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Fair Value Measurements - Summary of Assets and Liabilities Classified as Level 3 and Measured at Fair Value on Nonrecurring Basis (Details) - Level 3
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Valuation Technique Collateral valuations  
Unobservable Inputs Discount to appraised value  
Measurement Input, Discount Rate    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Weighted Average Rate 10.00% 9.00%