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Long-Term Debt (Schedule Of Long-Term Debt) (Parenthetical) (Detail)
Dec. 31, 2014
Senior Cash Pay Notes Due 2016 [Member]  
Debt Instrument [Line Items]  
Stated interest rate 10.75%
Senior Notes due 2021 [Member]  
Debt Instrument [Line Items]  
Stated interest rate 14.00%
Senior Notes Due 2018 [Member]  
Debt Instrument [Line Items]  
Stated interest rate 10.00%
Minimum [Member] | Senior Toggle Notes Due 2016 [Member]  
Debt Instrument [Line Items]  
Stated interest rate 11.00%
Maximum [Member] | Senior Toggle Notes Due 2016 [Member]  
Debt Instrument [Line Items]  
Stated interest rate 11.75%