Annual report pursuant to Section 13 and 15(d)

Estimated Useful Life of Intangible Assets (Detail)

v3.7.0.1
Estimated Useful Life of Intangible Assets (Detail)
12 Months Ended
Dec. 31, 2016
Patents And Trade Names | Minimum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 12 years
Patents And Trade Names | Maximum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 17 years
Customer Relationships | Minimum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 10 years
Customer Relationships | Maximum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 15 years
Customer Contracts and back log | Minimum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 1 year
Customer Contracts and back log | Maximum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 3 years
Technology  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 10 years
Favorable lease  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 10 years
Non- compete agreement  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 6 years
Product certification and licensing costs  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 3 years