Debt Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Debt Instrument [Line Items]
Revolving Credit Facility, Current Borrowing Capacity	$ 150,000
Revolving Credit Facility, Maximum Borrowing Capacity	250,000
Revolving Credit Facility, Expiration Date	Jun. 04, 2015
Revolving Credit Facility, Amount Outstanding	0
Current maturities of long-term debt	6,915	25,297
Capital Leases, Balance Sheet, Assets by Major Class, Net	39,996
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	7,611
Interest Paid	3,549	3,899	8,000
Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Term Loan, Original Principal Balance	150,000
Term Loan, Quarterly Principal Payments	5,625
Term Loan, Date Of First Required Payment	Sep. 30, 2011
Credit Facility Points Above Federal Funds Rate [Member]
Debt Instrument [Line Items]
Unsecured Loan, Basis Spread on Variable Rate	0.50%
Credit Facility Points Above LIBOR [Member]
Debt Instrument [Line Items]
Unsecured Loan, Basis Spread on Variable Rate	1.00%
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Current maturities of long-term debt	6,795
Unsecured Debt [Member]
Debt Instrument [Line Items]
Unsecured Loan, Issuance Date	Apr. 29, 2012
Unsecured Loan, Amount Outstanding	0
Unsecured Loan, Maturity Date	Apr. 29, 2014
Unsecured Loan, Unused Borrowing Capacity	$ 5,000
Unsecured Loan, Basis Spread on Variable Rate	(1.00%)
Debt Instrument, Interest Rate at Period End	2.25%