v2.4.0.6
Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail) (10.875% Senior Notes [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Jun. 30, 2012
Mar. 16, 2011
May 28, 2010
10.875% Senior Notes [Member]
       
Debt Instrument [Line Items]        
Principal amount of senior notes $ 65,000   $ 50,000 $ 150,000
Interest rate on senior note 10.875% 10.875% 10.875%