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Long-Term Debt (11 3/8% Senior Secured Notes Narrative) (Details) (USD $)
1 Months Ended 6 Months Ended
Oct. 31, 2009
Mar. 31, 2011
Jun. 30, 2011
Sep. 30, 2010
Interest rate on secured notes 2.875%      
11-3/8% Senior Secured Notes [Member]
       
Senior notes $ 328,300,000   $ 0 $ 325,800,000
Net proceeds from senior secured notes 316,200,000      
Debt instrument maturity November 2014      
Percentage of senior notes issued on face value 99.067%      
Unamortized balances of debt discount 3,100,000 2,200,000    
Write off of debt issuance cost   6,600,000    
Asset-Based Revolving Loan Facility [Member]
       
Maximum amount of available outstanding debt $ 70,000,000   $ 70,000,000