XML 100 R76.htm IDEA: XBRL DOCUMENT v3.6.0.2
Goodwill, Net - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]      
Impairment of goodwill $ 0 $ 0 $ 0
Accumulated Impairment of goodwill $ 40,000,000 $ 40,000,000 $ 40,000,000