Supplementary Information for Select Balance Sheet Accounts (Details) (USD $)	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Balance Sheet Fluctuation [Abstract]
Change in other current assets	$ 39,200,000
Income Taxes Receivable, Current	25,200,000
Income Taxes Receivable Federal And State	36,700,000
Change in accounts payable, accrued liabilities and deferred income	47,700,000
Other current liabilities	39,911,000	71,944,000
Employee-related Liabilities, Current [Abstract]
Accrued payroll and bonuses	447,866,000	473,863,000
Current pension liability	96,139,000	87,405,000
Other employee-related liabilities	14,217,000	11,946,000
Total employee-related liabilities	$ 558,222,000	$ 573,214,000