Annual report pursuant to Section 13 and 15(d)

LONG-TERM DEBT, Debt Covenants (Details)

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LONG-TERM DEBT, Debt Covenants (Details)
 12 Months Ended
Dec. 31, 2011
Senior Notes Due 2018 8.125 percent [Member]
  
Debt Instrument [Line Items]  
Debt instruments, covenant terms Two incurrence-based financial covenants, as defined, requiring a minimum fixed charge coverage ratio of 2.0 to 1.0 and a maximum secured indebtedness leverage ratio of 2.75 to 1.0.
Senior Notes Due 2016 10.75 percent [Member]
  
Debt Instrument [Line Items]  
Debt instruments, covenant terms Two incurrence-based financial covenants, as defined, requiring a minimum fixed charge coverage ratio of 2.0 to 1.0 and a maximum secured indebtedness leverage ratio of 2.75 to 1.0.
May 2010 Senior Secured Credit Facility [Member]
  
Line of Credit Facility [Line Items]  
Line of credit facility, covenant terms The credit agreement has two covenants measured quarterly that relate to total leverage and interest coverage. The consolidated total leverage covenant requires us to maintain a ratio of consolidated total debt to consolidated EBITDA both as defined in the credit agreement of 4.5x over the trailing four consecutive quarters. The total leverage ratio will reduce to 4.0x on September 30, 2012, 3.75x on September 30, 2013 and 3.5x on March 31, 2015. The consolidated interest coverage covenant requires us to maintain a minimum ratio of consolidated EBITDA to consolidated interest expense both as defined in the credit agreement of 2.75x over the trailing four consecutive quarters. The interest coverage ratio will increase to 3.0x on September 30, 2012.