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Debt Intruments (narrative) (detail) (USD $)
Sep. 27, 2014
Apr. 01, 2014
Sep. 28, 2013
Debt Instruments [Abstract]      
Line of Credit Facility, Amount Outstanding $ 302,220,000   $ 282,000,000
Line of Credit Facility [Line Items]      
Equity Method Investments   16,308,000  
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