Debt Intruments (narrative) (detail) (USD $)	6 Months Ended
	Sep. 28, 2013	Sep. 29, 2012
Debt Instruments [Abstract]
Line of Credit Facility, Amount Outstanding	$ 282,000,000	$ 233,000,000
Line of Credit Facility [Line Items]
Repayment of Notes Payable	36,742,000
Production Period [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	400,000,000
Nonproduction Period [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Current Borrowing Capacity	$ 300,000,000