Derivative Financial Instruments (Details 1) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 29, 2012	Dec. 29, 2012 Prepaid expenses and other current assets	Mar. 31, 2012 Prepaid expenses and other current assets	Dec. 29, 2012 Other accrued liabilities	Mar. 31, 2012 Other accrued liabilities
Derivatives, Fair Value [Line Items]
Document Period End Date	Dec. 29, 2012
Derivative Instruments located on Condensed Consolidated Balance sheet
Asset Derivatives, Fair Value		$ 2,992	$ 203
Liability Derivatives, Fair Value				$ 1,278	$ 3,273