Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended			3 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2012 Pension Change In Accounting Principle [Member]	Dec. 31, 2011 Pension Change In Accounting Principle [Member]	Jun. 30, 2012 Pension Change In Accounting Principle [Member]	Jun. 30, 2011 Other Current Liabilities [Member]	Jun. 30, 2011 Accounts Payable Accrued Liabilities And Deferred Income [Member]	Jun. 30, 2011 Employee Related Liabilities [Member]	Jun. 30, 2011 Other Noncurrent Liabilities [Member]	Jun. 30, 2011 Accrued Retirement Benefits And Other Employee Related Liabilities [Member]	Jun. 30, 2012 Reinsurance [Member]	Jun. 30, 2011 Reinsurance [Member]	Jun. 30, 2012 Health And Welfare [Member]	Jun. 30, 2011 Health And Welfare [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Current Fiscal Year End Date	--06-30
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted Cash and Cash Equivalents, Current	$ 171,406,000	$ 153,154,000										$ 166,900,000	$ 147,900,000	$ 4,500,000	$ 5,300,000
Receivables [Abstract]
Allowance for Doubtful Accounts Receivable, Current	20,871,000	12,636,000
Allowance Unbilled Receivables	19,900,000	16,700,000
Accounts Receivable Fluctuation [Abstract]
Period Change In Accounts Receivable Amount	105,400,000
Percentage of Company revenue converted to new ERP system.	81.00%
Period Change Allowance Amount	8,300,000
Days Sales Outstanding	87 days	78 days
Foreign Currency [Abstract]
Foreign Currency Transaction Gain (Loss), before Tax	(1,100,000)	200,000	1,300,000
Reclassification [Line Items]
Prior Period Reclassification Adjustment							(175,500,000)	(398,000,000)	573,200,000	(27,100,000)	27,100,000
Incurred But Not Reported Claims [Abstract]
IBNR liability amount	202,200,000	208,500,000
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in accounting method for pension, gross impact					9,500,000	(6,200,000)
Change in accounting method for pension, offset for the period				6,600,000		(3,200,000)
Change in accounting method for pension, tax benefit					3,700,000
Change in accounting method for pension, net of tax					5,800,000
Change in accounting method for pension, impact to OCI					5,800,000
Change in accounting method for pension, Diluted EPS					$ (0.08)
Share-Based Compensation [Abstract]
Allocated Share-based Compensation Expense	54,500,000	78,000,000	57,900,000
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net	$ 3,300,000	$ 37,000	$ 28,000