INTANGIBLE ASSETS - Schedule of Carrying Amount and Accumulated Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 24,841		$ 24,841		$ 24,841
Accumulated Amortization	(8,884)		(8,884)		(8,241)
Net Book Value	15,957		15,957		$ 16,600
Amortization of intangible assets			$ 643	$ 753
Customer Lists
Finite-Lived Intangible Assets [Line Items]
Average Useful Life (in years)			12 years		12 years
Gross Carrying Amount	13,987		$ 13,987		$ 13,987
Accumulated Amortization	(8,884)		(8,884)		(8,241)
Net Book Value	5,103		5,103		5,746
Amortization of intangible assets	300	$ 400	600	$ 800
Trademarks and Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,854		10,854		10,854
Net Book Value	$ 10,854		$ 10,854		$ 10,854