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Fair Value Measurement - Fair Value Reconcilation (Details) (Investments, USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Investments
   
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 4,313 $ 4,626
Additions to Level 3 11,418 6,662
Gains for the period (2,508) (6,975)
Extinguishments (8,416)  
Ending balance $ 4,807 $ 4,313