XML 18 R74.htm IDEA: XBRL DOCUMENT v3.19.3
Loans Held for Sale - Schedule of Loans Held for Sale at Lower Cost or Fair Value Activity (Footnote) (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Sep. 30, 2018
Ginnie Mae Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans repurchase obligation $ 58.6 $ 53.0