Debt Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Debt Instrument [Line Items]
Capital leases - long term	$ 816	$ 7,757
Current maturities of long-term debt	714	4,028
Capital leases - short term	1,881	1,379
Capital Leases, Balance Sheet, Assets by Major Class, Net	16,833
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	4,563
Revolving Credit Facility, Current Borrowing Capacity	300,000
Revolving Credit Facility, Maximum Borrowing Capacity	$ 600,000
Revolving Credit Facility, Expiration Date	Feb. 20, 2020
Revolving credit facility	$ 50,000	0
Interest Paid	$ 1,111	$ 620	$ 3,549
Credit Facility Points Above Federal Funds Rate [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	0.50%
Credit Facility Points Above LIBOR [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	1.00%
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Current maturities of long-term debt	$ 714
Unsecured Debt [Member]
Debt Instrument [Line Items]
Basis Spread on Variable Rate	1.00%
Unsecured Loan, Issuance Date	Mar. 03, 2014
Unsecured Loan, Unused Borrowing Capacity	$ 5,000
Unsecured Loan, Maturity Date	Apr. 30, 2017
Unsecured Loan, Amount Outstanding	$ 0