Amount of capital lease obligation due within one year or the normal operating cycle, if longer.

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Debt Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Debt Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2015
Debt Instrument [Line Items]
Capital leases - long term	$ 0		$ 816
Current maturities of long-term debt	0		714
Capital leases - short term	1,107		1,881
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	$ 0		$ 50,000
Interest Paid	$ 250	$ 285
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%
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