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Acquisitions and Divestitures - Fiscal 2012 Acquisitions (Details) (USD $) | 12 Months Ended | 1 Months Ended | 3 Months Ended | 4 Months Ended | 12 Months Ended |  |  | 1 Months Ended | 3 Months Ended
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May 03, 2014 | Apr. 27, 2013 | Apr. 28, 2012 | Oct. 31, 2011 Eetrex | Jul. 30, 2011 Eetrex | Apr. 27, 2013 Eetrex | Oct. 31, 2011 Eetrex | Apr. 27, 2013 Eetrex | Apr. 28, 2012 Eetrex | May 03, 2014 Eetrex | Apr. 27, 2013 Eetrex Minimum | Apr. 27, 2013 Eetrex Maximum | Sep. 30, 2011 Nypro Monterrey employee | Oct. 29, 2011 Nypro Monterrey
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value of pre-existing ownership interest in acquiree |  |  |  |  |  |  |  |  | $ 2,700,000 |  |  |  |  |
Percentage of pre-existing ownership interest in acquiree |  |  |  |  |  |  |  |  | 70.00% |  |  |  |  |
Payments to acquire additional interest in subsidiaries |  |  |  | 500,000 | 600,000 |  |  |  |  |  |  |  |  |
Additional equity interests acquired, percentage |  |  |  |  |  |  | 20.00% |  |  |  |  |  |  |
Ownership percentage of subsidiary by parent |  |  |  | 90.00% |  |  | 90.00% |  |  |  |  |  |  |
Purchase price stipulated in option to purchase remaining equity interests, representing persentage of net sales in fiscal 2014 or 2016 |  |  |  |  |  |  |  |  |  |  | 2.00% | 2.50% |  |
Ownership percentage by noncontrolling owners |  |  |  |  |  | 10.00% |  | 10.00% |  |  |  |  |  |
Increase in non-controlling interest due to an increase in the redemption amount |  |  |  |  |  | 100,000 |  |  |  |  |  |  |  |
Amount transferred to mezzanine equity |  |  |  |  |  |  |  |  | 600,000 |  |  |  |  |
Net loss attributable to noncontrolling interest | (100,000) | 300,000 | 200,000 |  |  |  |  | 300,000 | 300,000 |  |  |  |  |
Mezzanine equity |  |  |  |  |  | 0 |  | 0 | 300,000 | 0 |  |  |  |
Total consideration transferred |  |  |  |  |  |  |  |  |  |  |  |  | 6,400,000 |
Number of employees transferred as part of acquisition |  |  |  |  |  |  |  |  |  |  |  |  | 228 |
Fair value of 100% of the business based on third-party valuation |  |  |  |  |  |  |  |  |  |  |  |  | 6,600,000 |
Gain on bargain purchase | $ 0 | $ 0 | $ 300,000 |  |  |  |  |  |  |  |  |  |  | $ 300,000

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