XML 51 R36.htm IDEA: XBRL DOCUMENT v2.4.0.8
Accrued Program Costs - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Accrued Liabilities [Line Items]    
Accrued program costs $ 95,722 $ 32,335