v2.4.0.6
Summary of Significant Accounting Policies (Details 8) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Jun. 30, 2012
Fair value measurements categorized as Level 3 of the valuation hierarchy, valued on a recurring basis    
Balance of redeemable noncontrolling interest, beginning of period $ 17,200 $ 17,200
Balance of redeemable noncontrolling interest, end of period 17,200 17,200
Measured on a recurring basis | Level 3
    
Fair value measurements categorized as Level 3 of the valuation hierarchy, valued on a recurring basis    
Balance of redeemable noncontrolling interest, beginning of period (17,200) (17,200)
Balance of redeemable noncontrolling interest, end of period (17,200) (17,200)
Fair Value 27,200 27,200
Fair Value 27,200 27,200
Measured on a recurring basis | Level 3 | Investment In Web International Education Group
    
Fair value measurements categorized as Level 3 of the valuation hierarchy, valued on a recurring basis    
Available-for-sale securities 10,000 10,000
Available-for-sale securities $ 10,000 $ 10,000