CUSTOMER CONTRACTS AND OTHER INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finite-lived intangible assets
Finite-lived intangible assets, net	$ 101,457	$ 113,400
Other intangible assets
Finite and infinite lived intangible assets, gross	27,112	28,389
Finite and infinite lived intangible assets, net	128,569	141,789
Total amortization expense	25,200	23,400	22,400
Non-amortizable, indefinite lived intangible assets	12,600	12,600
Customer Contracts [Member]
Finite-lived intangible assets
Finite-lived intangible assets, gross	226,717	217,384
Less: Accumulated amortization	(125,260)	(103,984)
Finite-lived intangible assets, net	101,457	113,400
Patents [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Domain]
Useful life of intangible assets	15 years
Intangible Assets Excluding Goodwill and Customer Contracts [Member]
Finite-lived intangible assets
Less: Accumulated amortization	(9,240)	(7,126)
Other intangible assets
Finite and infinite lived intangible assets, gross	36,352	35,515
Finite and infinite lived intangible assets, net	27,112	28,389
Trademarks and Tradenames [Member]
Other intangible assets
Finite and infinite lived intangible assets, net	14,800	15,300
Segment, Geographical, Groups of Countries, Group One [Member] | Customer Contracts [Member]
Finite-lived intangible assets
Finite-lived intangible assets, net	6,300	5,400
Other intangible assets
Finite and infinite lived intangible assets, net	$ 400	$ 100
Minimum [Member] | Customer Contracts [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Domain]
Useful life of intangible assets	8 years
Minimum [Member] | Noncompete Agreements [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Domain]
Useful life of intangible assets	3 years
Maximum [Member] | Customer Contracts [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Domain]
Useful life of intangible assets	20 years
Maximum [Member] | Noncompete Agreements [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Domain]
Useful life of intangible assets	20 years