Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Parenthetical) (Detail)

v2.4.0.6
Long-Term Debt (Parenthetical) (Detail) (9 5/8% Senior Secured Second Lien Notes)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
9 5/8% Senior Secured Second Lien Notes
   
Debt Instrument [Line Items]    
Debt, interest rate 9.625% 9.625%
Debt, maturity year 2016 2016