ACQUISITIONS AND DIVESTITURES - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Entity	Mar. 31, 2013
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions	5
Net increase in Goodwill	$ 10.8
Tax deductible Goodwill amount	9.0
Net increase in Intangible Assets	14.3
Acquisition related expenses	3.2	1.8
Operating permits
Significant Acquisitions and Disposals [Line Items]
Net increase in Intangible Assets	5.4
Customer relationships
Significant Acquisitions and Disposals [Line Items]
Net increase in Intangible Assets	8.9
Customer relationships | Minimum
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, useful life in years	10 years
Customer relationships | Maximum
Significant Acquisitions and Disposals [Line Items]
Finite-Lived Intangible Assets, useful life in years	40 years
United States
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions	2
Portugal
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions	3
United States
Significant Acquisitions and Disposals [Line Items]
Net increase in Goodwill	12.3
United States | Regulated and Compliance Solutions [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions	1
United States | Communication Solutions
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions	1
International
Significant Acquisitions and Disposals [Line Items]
Net increase in Goodwill	$ (1.5)
International | Regulated and Compliance Solutions [Member] | Portugal
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions	3
Business acquisition, ownership percentage acquired	100.00%