GOODWILL AND OTHER INTANGIBLE ASSETS (Details 2) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Intangible assets
Gross Carrying Amount	$ 84,245,000		$ 84,924,000
Accumulated Amortization	(25,607,000)		(20,643,000)
Net Carrying Amount	58,638,000		64,281,000
Amortization expense	5,000,000	3,800,000
Weighted average life of the additions to customer lists, patents and other intangibles	7 years 8 months 12 days
Trade Name
Intangible assets
Gross Carrying Amount	9,932,000		9,070,000
Accumulated Amortization	(197,000)
Net Carrying Amount	9,735,000		9,070,000
Trade Name | Minimum
Intangible assets
Amortization period	1 year
Trade Name | Maximum
Intangible assets
Amortization period	3 years
Customer Lists
Intangible assets
Gross Carrying Amount	46,072,000		48,044,000
Accumulated Amortization	(10,628,000)		(7,846,000)
Net Carrying Amount	35,444,000		40,198,000
Customer Lists | Minimum
Intangible assets
Amortization period	10 years
Customer Lists | Maximum
Intangible assets
Amortization period	14 years
Patents and Other Intangibles
Intangible assets
Gross Carrying Amount	28,241,000		27,810,000
Accumulated Amortization	(14,782,000)		(12,797,000)
Net Carrying Amount	$ 13,459,000		$ 15,013,000
Patents
Intangible assets
Amortization period	5 years