LONG TERM DEBT (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Sep. 30, 2016	Aug. 01, 2016	Jun. 30, 2016	May 15, 2016	Mar. 31, 2016	Dec. 31, 2015	Nov. 15, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015
Long-Term Debt
Total debt before unamortized discount and debt issuance costs	$ 489,355						$ 572,660
Unamortized discount	(7,511)						(1,820)
Debt issuance costs, net	(9,194)						(4,407)
Total debt	472,650						566,433
Current portion of long-term debt	30,944	$ 28,833		$ 29,713		$ 29,447	30,385		$ 29,384	$ 29,904	$ 28,577
Long-term debt	441,706	$ 457,021		$ 519,952		$ 525,521	536,048		$ 516,743	$ 534,012	$ 540,882
Credit Agreement | Term Loan
Long-Term Debt
Total debt before unamortized discount and debt issuance costs	180,000						199,688
Credit Agreement | Revolving Credit Facility
Long-Term Debt
Total debt before unamortized discount and debt issuance costs							132,000
Term B Credit Agreement
Long-Term Debt
Debt issuance costs, net	(6,700)
Interest rate stated percentage			11.50%
Term B Credit Agreement | Term Loan B
Long-Term Debt
Total debt before unamortized discount and debt issuance costs	280,000
Senior Notes due 2018
Long-Term Debt
Total debt before unamortized discount and debt issuance costs							200,000
Interest rate stated percentage					10.625%			9.125%
Sellers notes
Long-Term Debt
Total debt before unamortized discount and debt issuance costs	11,110						19,838
Unamortized discount	(600)						(1,100)
Financing leases and other
Long-Term Debt
Total debt before unamortized discount and debt issuance costs	18,245						21,134
Credit Agreement and Senior Notes
Long-Term Debt
Debt issuance costs, net	$ (11,000)						$ (3,000)