Debt Narrative (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
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	2015-06-04
Revolving Credit Facility, Amount Outstanding	0
Term Loan, Original Principal Balance	150,000
Term Loan, Quarterly Principal Payments	5,625
Term Loan, Date Of First Required Payment	2011-09-30
Term Loan, Date Of Final Required Payment	2015-06-04
Current maturities of long-term debt	25,297	23,076
Capital Leases, Balance Sheet, Assets by Major Class, Net	13,760
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	2,133
Interest Paid	3,899	8,000	759
Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest Rate at Period End	2.47%
Current maturities of long-term debt	22,500
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	2,352
Unsecured Debt [Member]
Debt Instrument [Line Items]
Interest Rate at Period End	2.25%
Unsecured Loan, Issuance Date	2012-04-29
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%)