Summary of Significant Accounting Policies (Details 7) - Measured on a recurring basis - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015
Fair value
Assets and liabilities measured at fair value on a recurring basis
Total	$ 6,801	$ 6,801
Fair value | Middlebury Interactive Languages LLC
Assets and liabilities measured at fair value on a recurring basis
Redeemable Noncontrolling Interest Fair Value	6,801	$ 6,801
Significant Unobservable Inputs (Level 3)
Assets and liabilities measured at fair value on a recurring basis
Total	6,801
Significant Unobservable Inputs (Level 3) | Middlebury Interactive Languages LLC
Assets and liabilities measured at fair value on a recurring basis
Redeemable Noncontrolling Interest Fair Value	$ 6,801