Annual report pursuant to Section 13 and 15(d)

Estimated Useful Life of Intangible Assets (Detail)

v3.8.0.1
Estimated Useful Life of Intangible Assets (Detail)
 12 Months Ended
Dec. 31, 2017
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
Trademarks / Trade Names | Minimum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 12 years
Trademarks / Trade Names | Maximum  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 17 years
Non- compete agreement  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 6 years
Favorable leases  
Finite-Lived Intangible Assets [Line Items]  
Intangible assets, estimated useful life 10 years