Debt and Borrowings Debt and Borrowings (Components of Debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015
Line of Credit Facility [Line Items]
Senior notes outstanding	$ 150,000	$ 150,000
Capital Lease Obligations	24,649	4,067
Long-term Debt	888,522	843,883
Current portion of long-term debt	45,232	31,275
Long-term debt, less current portion	843,290	812,608
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Amount Outstanding	680,390	660,216
Tilda borrowing arrangement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Amount Outstanding	$ 33,483	$ 29,600