Debt and Borrowings Debt and Borrowings (Components of Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Line of Credit Facility [Line Items]
Senior notes outstanding	$ 150,000	$ 150,000
Capital Lease Obligations	15,234	4,067
Long-term Debt	982,014	843,883
Current portion of long-term debt	41,552	31,275
Long-term debt, less current portion	940,462	812,608
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Amount Outstanding	780,882	660,216
Tilda borrowing arrangement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Amount Outstanding	$ 35,898	$ 29,600