Quarterly report pursuant to Section 13 or 15(d)

Mortgage Servicing Rights - Summary of Impact of Adverse Changes on Discount Rate and Prepayment Speeds at Two Different Data Points (Details)

v3.20.2
Mortgage Servicing Rights - Summary of Impact of Adverse Changes on Discount Rate and Prepayment Speeds at Two Different Data Points (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Transfers And Servicing Of Financial Assets [Abstract]    
Mortgage servicing rights, Discount Rates 10% Adverse Change $ (16,677) $ (23,682)
Mortgage servicing rights, Discount Rates 20% Adverse Change (27,696) (35,701)
Mortgage servicing rights, Prepayment Speeds 10% Adverse Change (32,799) (31,329)
Mortgage servicing rights, Prepayment Speeds 20% Adverse Change $ (58,291) $ (49,031)