Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Jun. 30, 2016
Accounts Payable and Accrued Liabilities, Current [Abstract]
Contract costs	$ 40,134	$ 40,343
Legal accruals	5,325	5,232
Lease obligations	5,439	5,564
Other	6,643	6,887
Total other accrued liabilities	$ 57,541	$ 58,026