XML 114 R95.htm IDEA: XBRL DOCUMENT v3.3.1.900
Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Fair Value Inputs, Assets, Quantitative Information [Line Items]      
Impairment of Intangible Assets $ 0 $ 0  
Goodwill accumulated impairment 0 0  
Goodwill impairment loss $ 0 $ 0 $ 0
Goodwill | Discounted cash flows | Minimum      
Fair Value Inputs, Assets, Quantitative Information [Line Items]      
Discount rate (percent) 8.00%    
Goodwill | Discounted cash flows | Maximum      
Fair Value Inputs, Assets, Quantitative Information [Line Items]      
Discount rate (percent) 13.00%