Goodwill and Other Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets, gross $ 609,171 $ 380,990
Total accumulated amortization (133,143) (102,631)
Trade names, not subject to amortization 72,986 72,328
Total intangibles, net 549,014 350,687
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets, gross 308,336 212,454
Total accumulated amortization $ (76,803) (62,679)
Weighted average useful lives 13 years  
Technology and Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets, gross $ 51,953 38,230
Total accumulated amortization $ (23,393) (16,481)
Weighted average useful lives 9 years  
Trade name    
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets, gross $ 129,007 25,003
Total accumulated amortization $ (6,053) (4,639)
Weighted average useful lives 15 years  
Licensing and Non-Compete Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets, gross $ 8,645 6,024
Total accumulated amortization $ (6,637) (5,913)
Weighted average useful lives 5 years  
Permits and Airspace    
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets, gross $ 110,624 98,673
Total accumulated amortization $ (19,651) 12,313
Weighted average useful lives 13 years  
Distributor Relations and Other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets, gross $ 606 606
Total accumulated amortization $ (606) $ (606)
Weighted average useful lives 5 years