Summary Of Significant Accounting Policies (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2011 entities months years	Jun. 30, 2010
Percent of total revenue subject to subsequent government audit of direct and indirect costs	94.90%
Material adjustment for audits not completed on revenue recognition	Management does not anticipate any material adjustment to the consolidated financial statements in subsequent periods for audits not yet started or completed.
Percentage goodwill attributable to domestic operations	95.00%
Minimum estimated useful life (in years)	3
Maximum estimated useful life (in years)	8
Common stock, shares authorized	80,000	80,000
Accumulated other comprehensive loss related to foreign currency translation adjustments	$ 2,400,000	$ 9,100,000
Accumulated other comprehensive loss related to unrecognized post-retirement medical plan costs	700,000	700,000
Convertible notes payable	$ 300,000,000	$ 300,000,000
Warrants [Member]
Exercise price of shares issued under warrants	$ 68.31
Common stock, shares authorized	5,500