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Acquisitions and Divestitures - Narrative - Fiscal 2013 Acquisitions (Details) - USD ($) $ in Millions | 1 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2012 | May. 02, 2015 | May. 01, 2015 | May. 03, 2014 | Apr. 27, 2013 | Apr. 26, 2013 | Apr. 28, 2012
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill |  | $ 1.7 | $ 13.0 | $ 13.0 | $ 12.9 | $ 17.2 | $ 16.4
Hetronic South Europe S.R.L. |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash paid for acquisition | $ 1.4 |  |  |  |  |  |
Acquiree's debt forgiveness | 1.3 |  |  |  |  |  |
Total consideration transferred | 2.7 |  |  |  |  |  |
Fair value of the tangible net assets | 0.3 |  |  |  |  |  |
Goodwill | 0.8 |  |  |  |  |  |
Hetronic South Europe S.R.L. | Customer relationships |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Fair value of intangible assets | $ 1.6 |  |  |  |  |  |
Weighted average useful life of finite-lived intangible assets acquired | 12 years |  |  |  |  |  |
Hetronic South Europe S.R.L. | Noncompete agreements |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Fair value of intangible assets | $ 0.1 |  |  |  |  |  |
Weighted average useful life of finite-lived intangible assets acquired | 5 years |  |  |  |  |  |

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