XML 64 R54.htm IDEA: XBRL DOCUMENT v3.20.2
Mortgage Servicing Rights - Summary of Estimated Future Amortization Expense for Mortgage Servicing Rights (Detail)
$ in Thousands
Sep. 30, 2020
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2020 $ 341
2021 320
2022 299
2023 278
2024 254
Thereafter 123
Total $ 1,615