XML 88 R78.htm IDEA: XBRL DOCUMENT v3.5.0.2
Disclosures about Fair Value of Assets and Liabilities - Additional Information (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Fair Value Disclosures [Abstract]    
Reduced in carrying amount of mortgage servicing rights $ 193,000 $ 51,000