v2.4.0.6
Related Party Transactions (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Dec. 31, 2012
Knowledge Universe Technologies (KUT)
 
Related Party Transactions  
Purchases of services $ 0.1
Middlebury Interactive Languages LLC (MIL)
 
Related Party Transactions  
Amount due from joint venture $ 3.0
Ownership interest in joint venture (as a percent) 60.00%