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Segmented Information - Schedule of Reconciliations of Segments Gross Profits and Certain Unallocated Costs to Consolidated Gross Profits (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 26, 2016 | Mar. 28, 2015 | Mar. 29, 2014
Segment Reporting [Abstract] |  |  |
Unadjusted gross profit | $ 112,714 | $ 123,518 | $ 119,873
Inventory provisions | (2,084) | (3,151) | (3,010)
Other unallocated costs | (1,630) | (2,551) | (2,801)
Adjustment of intercompany profit | 387 | (11) | 605
Gross profit | $ 109,387 | $ 117,805 | $ 114,667

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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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