XML 73 R57.htm IDEA: XBRL DOCUMENT v3.10.0.1
Loans Held for Sale - Schedule of Loans Held for Sale Fair Value (Footnote) (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Receivables [Abstract]    
Increase (decrease) in fair value of loans held for sale $ (6.5) $ 6.7