GOODWILL AND INTANGIBLE ASSETS (Details 2) (USD $)	12 Months Ended				3 Months Ended			12 Months Ended			12 Months Ended	3 Months Ended			12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011 Trade names	Jun. 30, 2012 AACER trade name	Dec. 31, 2013 Customer relationships	Dec. 31, 2012 Customer relationships	Dec. 31, 2013 Customer relationships Weighted Average	Dec. 31, 2013 Trade names	Dec. 31, 2012 Trade names	Dec. 31, 2013 Trade names Weighted Average	Jun. 30, 2012 AACER trade name	Dec. 31, 2013 Non-compete agreements	Dec. 31, 2012 Non-compete agreements	Dec. 31, 2013 Non-compete agreements Weighted Average
Amortizing and Non-amortizing intangible assets
Gross Carrying Amount	$ 150,050,000	$ 150,050,000				$ 124,512,000	$ 124,512,000		$ 6,591,000	$ 6,591,000			$ 18,947,000	$ 18,947,000
Accumulated Amortization	108,933,000	90,099,000				90,274,000	73,713,000		2,481,000	1,650,000			16,178,000	14,736,000
Weighted average life								7 years			8 years				5 years
Useful lives of intangible assets												10 years
Intangible asset impairment expense		1,777,000	1,278,000		1,800,000
Impairment expense recognized				1,300,000
Amortization of identifiable intangible assets	$ 18,834,000	$ 26,588,000	$ 21,323,000