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Derivative Financial Instruments - Schedule of Quantitative Information About IRLCs and Fair Value Measurements (Details) - IRLCs
Jun. 30, 2021
Dec. 31, 2020
Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loan funding probability (“pull-through”) 0.00% 0.00%
Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loan funding probability (“pull-through”) 100.00% 100.00%
Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Loan funding probability (“pull-through”) 90.70% 87.80%