Organization and Business Operations - Additional Information (Detail) - Segment
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2016
Jun. 30, 2016
Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Sole owner of Trust interest of the company   100.00%    
Number of businesses/operating segments owned 8 8    
FOX        
Schedule of Equity Method Investments [Line Items]        
Non-controlling interest 23.00% 23.00% 33.10% 41.20%