Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets - Other Intangible Assets (Detail)

v3.2.0.727
Goodwill and Other Intangible Assets - Other Intangible Assets (Detail) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Finite And Indefinite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization $ 473,792 $ 468,951
Accumulated Amortization (239,489) (225,367)
Intangible Assets, Net $ 234,303 243,584
Remaining Weighted Average Amortization Period in Years 11 years 2 months 12 days  
Customer Relationships [Member]    
Finite And Indefinite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization $ 239,329 235,851
Accumulated Amortization (71,768) (63,764)
Intangible Assets, Net $ 167,561 172,087
Remaining Weighted Average Amortization Period in Years 10 years 3 months 18 days  
Backlog [Member]    
Finite And Indefinite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization $ 132,681 133,704
Accumulated Amortization (124,960) (122,265)
Intangible Assets, Net $ 7,721 11,439
Remaining Weighted Average Amortization Period in Years 10 months 24 days  
Trade Names [Member]    
Finite And Indefinite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization $ 51,005 49,664
Accumulated Amortization (7,682) (6,278)
Intangible Assets, Net $ 43,323 43,386
Remaining Weighted Average Amortization Period in Years 18 years 10 months 24 days  
Non-compete Agreements [Member]    
Finite And Indefinite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization $ 28,245 27,659
Accumulated Amortization (22,294) (21,365)
Intangible Assets, Net $ 5,951 6,294
Remaining Weighted Average Amortization Period in Years 3 years 4 months 24 days  
Patented Rights and Developed Technology [Member]    
Finite And Indefinite Lived Intangible Assets [Line Items]    
Intangible assets subject to amortization $ 22,532 22,073
Accumulated Amortization (12,785) (11,695)
Intangible Assets, Net $ 9,747 $ 10,378
Remaining Weighted Average Amortization Period in Years 4 years 4 months 24 days