LONG-TERM DEBT AND CAPITAL LEASE OBLIGATIONS, LINE OF CREDIT FACILITY (Details) (USD $)	0 Months Ended		12 Months Ended
	Dec. 31, 2013		Dec. 31, 2013
Line of Credit Facility [Line Items]
Mandatory prepayments description			The maturity dates are subject to acceleration upon breach of the financial covenants (consisting of a maximum total leverage ratio and senior leverage ratio and a minimum fixed charge coverage ratio) and other customary non-financial covenants contained in the credit agreement
Long-term Debt, Fiscal Year Maturity [Abstract]
Year ending December 31, 2014	$ 4,079,000	[1]	$ 4,079,000	[1]
Year ending December 31, 2015	4,112,000	[1]	4,112,000	[1]
Year ending December 31, 2016	3,536,000	[1]	3,536,000	[1]
Year ending December 31, 2017	41,390,000	[1]	41,390,000	[1]
Year ending December 31, 2018	214,982,000	[1]	214,982,000	[1]
Thereafter	7,940,000	[1]	7,940,000	[1]
Long-term debt, total	276,039,000	[1]	276,039,000	[1]
Less: imputed interest	0	[1]	0	[1]
Long-term debt, five year maturities	276,039,000	[1]	276,039,000	[1]
Capital Leases, Fiscal Year Maturity [Abstract]
Year ending December 31, 2014	1,715,000		1,715,000
Year ending December 31, 2015	1,946,000		1,946,000
Year ending December 31, 2016	1,915,000		1,915,000
Year ending December 31, 2017	1,963,000		1,963,000
Year ending December 31, 2018	2,223,000		2,223,000
Thereafter	7,672,000		7,672,000
Capital leases, total	17,434,000		17,434,000
Less: imputed interest	(2,862,000)		(2,862,000)
Total capital leases, five year maturities	14,572,000		14,572,000
LIBOR [Member]
Line of Credit Facility [Line Items]
Variable rate floor (in hundredths)	1.25%		1.25%
Minimum [Member]
Line of Credit Facility [Line Items]
Maturity dates			Sep. 30, 2020
Maximum [Member]
Line of Credit Facility [Line Items]
Maturity dates			Jun. 30, 2032
Revolver Under Credit Agreement, Variable [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity	125,000,000		125,000,000
Commitment fee (in hundredths)	0.625%
Maturity dates			Dec. 28, 2017
Revolver Under Credit Agreement, Variable [Member] | Alternate base rate [Member]
Line of Credit Facility [Line Items]
Variable rate floor (in hundredths)	2.25%		2.25%
Revolver Under Credit Agreement, Variable [Member] | Federal Funds Rate [Member]
Line of Credit Facility [Line Items]
Spread over reference rate (in hundredths)			0.50%
Revolver Under Credit Agreement, Variable [Member] | One Month Eurodollar [Member]
Line of Credit Facility [Line Items]
Spread over reference rate (in hundredths)			1.00%
Revolver Under Credit Agreement, Variable [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Commitment fee (in hundredths)			0.375%
Revolver Under Credit Agreement, Variable [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Commitment fee (in hundredths)			0.625%
Revolver Under Credit Agreement, Variable [Member] | Maximum [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Spread over reference rate (in hundredths)			3.50%
Revolver Under Credit Agreement, Variable [Member] | Maximum [Member] | Alternate base rate [Member]
Line of Credit Facility [Line Items]
Spread over reference rate (in hundredths)			2.50%
Term Loan Under Credit Agreement, Variable [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 225,000,000		$ 225,000,000
Maturity dates			Dec. 28, 2018
Term Loan Under Credit Agreement, Variable [Member] | Maximum [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Spread over reference rate (in hundredths)			4.00%
Term Loan Under Credit Agreement, Variable [Member] | Maximum [Member] | Alternate base rate [Member]
Line of Credit Facility [Line Items]
Spread over reference rate (in hundredths)			3.00%

[1] Includes principal only