BASIS OF PRESENTATION - Fair Value of Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013 Senior Subordinated Notes 2004 7 1/8% Senior Subordinated Notes	Aug. 31, 2004 Senior Subordinated Notes 2004 7 1/8% Senior Subordinated Notes	Dec. 31, 2013 Senior Subordinated Notes 2005 6 7/8% Senior Subordinated Notes	Feb. 28, 2005 Senior Subordinated Notes 2005 6 7/8% Senior Subordinated Notes	Dec. 31, 2013 Senior Subordinated Notes 2012 11 % Senior Subordinated Notes	Aug. 31, 2013 Senior Subordinated Notes 2012 11 % Senior Subordinated Notes	Mar. 06, 2012 Senior Subordinated Notes 2012 11 % Senior Subordinated Notes	Dec. 31, 2013 Fair Value, Inputs, Level 2 Senior Subordinated Notes 2013 9 3/4% Senior Unsecured Notes	Dec. 31, 2013 Fair Value, Inputs, Level 2 Senior Subordinated Notes 2004 7 1/8% Senior Subordinated Notes	Dec. 31, 2013 Fair Value, Inputs, Level 2 Senior Subordinated Notes 2005 6 7/8% Senior Subordinated Notes	Dec. 31, 2013 Fair Value, Inputs, Level 2 Senior Subordinated Notes 2012 11 % Senior Subordinated Notes	Dec. 31, 2013 Carrying Value Fair Value, Inputs, Level 2 Credit Facility Bank Credit Facility - Revolving Facility	Dec. 31, 2013 Carrying Value Fair Value, Inputs, Level 2 Credit Facility Bank Credit Facility - Term Loan A Facility	Dec. 31, 2013 Carrying Value Fair Value, Inputs, Level 2 Credit Facility Bank Credit Facility - Term Loan B Facility	Dec. 31, 2013 Carrying Value Fair Value, Inputs, Level 2 Senior Subordinated Notes 2013 9 3/4% Senior Unsecured Notes	Dec. 31, 2013 Carrying Value Fair Value, Inputs, Level 2 Senior Subordinated Notes 2004 7 1/8% Senior Subordinated Notes	Dec. 31, 2013 Carrying Value Fair Value, Inputs, Level 2 Senior Subordinated Notes 2005 6 7/8% Senior Subordinated Notes	Dec. 31, 2013 Carrying Value Fair Value, Inputs, Level 2 Senior Subordinated Notes 2012 11 % Senior Subordinated Notes	Dec. 31, 2013 Fair Value Fair Value, Inputs, Level 2 Credit Facility Bank Credit Facility - Revolving Facility	Dec. 31, 2013 Fair Value Fair Value, Inputs, Level 2 Credit Facility Bank Credit Facility - Term Loan A Facility	Dec. 31, 2013 Fair Value Fair Value, Inputs, Level 2 Credit Facility Bank Credit Facility - Term Loan B Facility	Dec. 31, 2013 Fair Value Fair Value, Inputs, Level 2 Senior Subordinated Notes 2013 9 3/4% Senior Unsecured Notes	Dec. 31, 2013 Fair Value Fair Value, Inputs, Level 2 Senior Subordinated Notes 2004 7 1/8% Senior Subordinated Notes	Dec. 31, 2013 Fair Value Fair Value, Inputs, Level 2 Senior Subordinated Notes 2005 6 7/8% Senior Subordinated Notes	Dec. 31, 2013 Fair Value Fair Value, Inputs, Level 2 Senior Subordinated Notes 2012 11 % Senior Subordinated Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Note stated interest rate	7.125%	7.125%	6.875%	6.875%	11.00%	11.00%	11.00%	9.75%	7.125%	6.875%	11.00%
Credit facility value												$ 14,000	$ 124,358	$ 720,101					$ 13,790	$ 125,000	$ 740,950
Note value															$ 500,000	$ 21,156	$ 9,654	$ 271,180				$ 537,500	$ 21,130	$ 9,642	$ 275,878