Commitment And Contingencies (Detail) - York, Pennsylvania Facility [Member]	9 Months Ended
Sep. 27, 2015
Site Contingency [Line Items]
Site contingency third party cost percentage of total cost	53.00%
Site contingency portion of total cost	47.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Period Type:	duration