Intangible Assets, Net (Narrative) (Detail)	12 Months Ended
	Dec. 31, 2015
Long-term Franchise Agreements and Contracts [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period of acquired intangible assets	10 years
Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period of acquired intangible assets	8 years 1 month 30 days
Permits and Non-Competition Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted average amortization period of acquired intangible assets	38 years 1 month 6 days