Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments - Schedule of Quantitative Information About IRLCs and Fair Value Measurements (Details)

v3.21.1
Derivative Financial Instruments - Schedule of Quantitative Information About IRLCs and Fair Value Measurements (Details) - IRLCs
Dec. 31, 2020
Dec. 31, 2019
Minimum    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Average pull-through rate used to calculate fair value of IRLCs 0.00% 0.00%
Maximum    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Average pull-through rate used to calculate fair value of IRLCs 100.00% 100.00%
Weighted Average    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]    
Average pull-through rate used to calculate fair value of IRLCs 87.80% 89.40%