Business and Basis of Presentation (Details)	6 Months Ended
	Sep. 29, 2012 Continents Experts Countries Offices Clients
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of technical experts	3,000
Number of offices	200
Number of clients	175,000
Number of countries in which entity operates	150
Number of continents in which entity operates	5
Number of weeks in a fiscal quarter	P13W