ACQUISITIONS AND DIVESTITURES - Additional Information (Detail) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013 Entity	Dec. 31, 2012 Entity	Dec. 31, 2011 Entity
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									49	41	45
Net increase in goodwill									$ 179,800,000
Tax deductible goodwill amount	84,600,000								84,600,000
Acquisition related expenses	4,037,000	2,111,000	2,324,000	1,803,000	1,707,000	2,467,000	2,207,000	1,539,000	10,275,000	7,920,000	16,700,000
Customer relationships [Member] | Minimum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									14 years
Customer relationships [Member] | Maximum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									40 years
Tradenames [Member] | Minimum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									10 years
Tradenames [Member] | Maximum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									40 years
Non-competes [Member] | Minimum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									3 years
Non-competes [Member] | Maximum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									14 years
2013 Acquisitions [Member]
Significant Acquisitions and Disposals [Line Items]
Net increase in intangible assets									92,400,000
2013 Acquisitions [Member] | Permits [Member]
Significant Acquisitions and Disposals [Line Items]
Net increase in intangible assets									7,900,000
2013 Acquisitions [Member] | Tradenames [Member]
Significant Acquisitions and Disposals [Line Items]
Net increase in intangible assets									5,800,000
2013 Acquisitions [Member] | Customer relationships [Member]
Significant Acquisitions and Disposals [Line Items]
Net increase in intangible assets									77,900,000
2013 Acquisitions [Member] | Customer relationships [Member] | Minimum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									15 years
2013 Acquisitions [Member] | Customer relationships [Member] | Maximum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									40 years
2013 Acquisitions [Member] | Tradenames [Member]
Significant Acquisitions and Disposals [Line Items]
Net increase in intangible assets									300,000
2013 Acquisitions [Member] | Tradenames [Member] | Minimum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									10 years
2013 Acquisitions [Member] | Tradenames [Member] | Maximum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									20 years
2013 Acquisitions [Member] | Non-competes [Member]
Significant Acquisitions and Disposals [Line Items]
Net increase in intangible assets									500,000
2013 Acquisitions [Member] | Non-competes [Member] | Minimum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									3 years
2013 Acquisitions [Member] | Non-competes [Member] | Maximum [Member]
Significant Acquisitions and Disposals [Line Items]
Finite lived intangible asset, useful life in years									5 years
Series of Individually Immaterial Business Acquisitions [Member]
Significant Acquisitions and Disposals [Line Items]
Estimated impact to revenues of acquisitions									56,800,000
Estimated annualized revenues from acquisitions									154,300,000
Argentina [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									3	1	1
Brazil [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									2	1	4
Canada [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									3	0	2
Chile [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1	3	1
Japan [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									3	1	3
Mexico [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1	2	0
Portugal [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									2	1	1
Romania [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									6	2	6
Spain [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									3	8	2
United Kingdom [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									12	5	3
United States [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									13
Net increase in goodwill									61,800,000
United States [Member] | Regulated Waste and Compliance Services [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									11
United States [Member] | Communication Solutions [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									36
Net increase in goodwill									$ 118,000,000
International [Member] | Regulated Waste and Compliance Services [Member] | Argentina [Member] | Acquisition One [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									2
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Argentina [Member] | Acquisition Two [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
International [Member] | Regulated Waste and Compliance Services [Member] | Brazil [Member] | Acquisition One [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Brazil [Member] | Acquisition Two [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
Business acquisition, ownership percentage acquired	70.00%								70.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Canada [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									2
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Chile [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Japan [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									3
International [Member] | Regulated Waste and Compliance Services [Member] | Mexico [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
Business acquisition, ownership percentage acquired	51.00%								51.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Portugal [Member] | Acquisition One [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Portugal [Member] | Acquisition Two [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
International [Member] | Regulated Waste and Compliance Services [Member] | Romania [Member] | Acquisition One [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									2
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Romania [Member] | Acquisition Two [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									4
International [Member] | Regulated Waste and Compliance Services [Member] | Spain [Member] | Acquisition One [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									2
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Waste and Compliance Services [Member] | Spain [Member] | Acquisition Two [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
International [Member] | Regulated Waste and Compliance Services [Member] | United Kingdom [Member] | Acquisition One [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									7
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Waste and Compliance Services [Member] | United Kingdom [Member] | Acquisition Two [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									2
International [Member] | Communication Solutions [Member] | Canada [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
International [Member] | Communication Solutions [Member] | United Kingdom [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									2
Business acquisition, ownership percentage acquired	100.00%								100.00%
International [Member] | Regulated Recall and Returns Services [Member] | United Kingdom [Member]
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions									1
Business acquisition, ownership percentage acquired	100.00%								100.00%