LONG-TERM DEBT AND CAPITAL LEASE OBLIGATIONS (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
		Jun. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2014	Jun. 19, 2014
Debt Instrument [Line Items]
Debt Issuance Cost			$ 8,348
Long-term debt, total			249,995	$ 263,069
Current installments of long-term debt and capital lease obligations			2,362	3,424
Long-term debt and capital lease obligations, less current installments			247,633	259,645
Capital Lease Obligations			$ 232
Lease Expiration Date			Dec. 31, 2025
non-cash debt settlement			$ 1,167
Debt issuance cost write-off		$ 8,340	0	8,466	$ 0
Gross amount of assets recorded under capital leases			14,870
Debt Issuance Cost	[1]		(4,539)	(5,909)
Long-term Debt, Fiscal Year Maturity [Abstract]
Year ending December 31, 2016	[2]		895
Year ending December 31, 2017	[2]		919
Year ending December 31, 2018	[2]		944
Year ending December 31, 2019	[2]		235,024
Year ending December 31, 2020	[2]		5,044
Thereafter	[2]		0
Long-term debt, total	[2]		242,826
Less: imputed interest			0
Long-term debt, five year maturities	[2]		242,826
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Year ending December 31, 2016			1,915
Year ending December 31, 2017			1,962
Year ending December 31, 2018			2,223
Year ending December 31, 2019			2,497
Year ending December 31, 2020			2,351
Thereafter			2,565
Capital leases, total			13,513
Less: imputed interest			(1,805)
Total capital leases, five year maturities			11,708
Term Loan and Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Debt issuance cost write-off				8,340
Second Priority Senior Secured Notes [Member]
Debt Instrument [Line Items]
Long-term debt, gross			234,175	$ 245,000
Long-term debt, total							$ 250,000
Debt Instrument, Repurchase Amount			$ 10,825			$ 5,000
Premium Paid on Debt Repurchase			0.00%			1.125%
Fixed interest rate (in hundredths)			7.375%	7.375%
Municipal Bonds [Member]
Debt Instrument [Line Items]
Long-term debt, gross			$ 6,901	$ 7,334
Fixed interest rate, minimum (in hundredths)			2.80%
Fixed interest rate, maximum (in hundredths)			4.50%
Maturity dates			Sep. 30, 2020
Fixed interest rate (in hundredths)			2.80%	2.80%
Capital Leases [Member]
Debt Instrument [Line Items]
Long-term debt, gross			$ 11,708	$ 13,288
Fixed interest rate, minimum (in hundredths)			3.00%	2.04%
Fixed interest rate, maximum (in hundredths)			7.73%	7.73%
Maturity dates			Jun. 30, 2032
Lease Expiration Date			Mar. 31, 2022
Notes Payable [Member]
Debt Instrument [Line Items]
Long-term debt, gross			$ 1,750	$ 3,356
Fixed interest rate, maximum (in hundredths)			2.56%	2.56%
Equipment [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Fixed interest rate, minimum (in hundredths)			2.45%
Fixed interest rate, maximum (in hundredths)			3.85%

[1] During 2015 the Company adopted FASB Accounting Standards Update No. 2015-03 which requires certain debt issuance costs to be presented as a direct deduction from the carrying value of the associated debt liability. Prior year balances have been revised to reflect the current year presentation.

[2] Includes principal only