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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Business Combinations (Narrative) (Details) (USD $)	12 Months Ended
Business Combinations (Narrative) (Details) (USD $)	Sep. 30, 2011	May 31, 2011	Oct. 01, 2010
Additional interest purchased under agreements	55.00%	70.00%
Purchase price	$ 711,400,000		$ 259,500,000
General and administrative expense	15,200,000
TechTeam [Member]
Entity number of employees	500
Sula Systems [Member]
Entity number of employees	70
Damon S Williams Associates, LLC [Member]
Entity number of employees	50
Consulting Engineering Services (India) Private Limited [Member]
Entity number of employees	2,000
Aker Solutions ASA [Member]
Purchase price, before estimate	675,000,000
Specified transactions added to share purchase agreement price	234,600,000
Purchase price	909,600,000
Acquired receivables	$ 134,200,000
Minimum useful life for intangibles, years	1
Maximum useful life for intangibles, years	15
Weighted average life for intangibles, years	12.8