Bank Borrowings And Long-Term Debt (Term Loan Agreement) (Details) (USD $)	0 Months Ended	12 Months Ended			0 Months Ended			0 Months Ended	12 Months Ended
	Sep. 27, 2010	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2008	Sep. 27, 2010 Asia Term Loan [Member]	Feb. 17, 2011 Asia Term Loan [Member]	Sep. 28, 2010 Asia Term Loan [Member]	Oct. 19, 2011 Term Loan Agreement [Member]	Mar. 31, 2012 Term Loan Agreement [Member]	Mar. 31, 2012 Term Loan Agreement Mature In October 2012 [Member]	Mar. 31, 2012 Minimum [Member] Term Loan Agreement [Member]	Mar. 31, 2012 Maximum [Member] Term Loan Agreement [Member]
Debt Instrument [Line Items]
Capital lease obligations		$ 11,600,000	$ 500,000
Long-term obligations		8,500,000	300,000
Short-term obligations		3,100,000	200,000
Borrowings outstanding		140,000,000	160,000,000	1,700,000,000
Term loan agreement maturing in October 2012				500,000,000
Debt instrument, maturity date									Oct. 01, 2014	Oct. 01, 2012
Percentage on prepayment of loans									100.00%
Repayment of outstanding borrowings								$ 480,000,000
Line of credit facility base rate over federal funds rate					0.50%				0.50%
Line of credit facility LIBOR rate plus applicable margin rate					2.30%	2.28%	2.15%				1.25%	2.25%
Debt instrument, description of variable rate basis		LIBOR							LIBOR
Debt instrument amortization period											5 years	7 years
Percentage of quarterly amortization of term loan, per annum	1.00%	1.00%