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Intangible Assets and Goodwill - Goodwill Rollforward (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 27, 2013 | May 03, 2014 | Apr. 27, 2013 | Apr. 28, 2012 | May 03, 2014 Interconnect | Apr. 27, 2013 Interconnect | Apr. 28, 2012 Interconnect | Jan. 26, 2013 Interconnect | May 03, 2014 Power Products | Apr. 27, 2013 Power Products | Apr. 28, 2012 Power Products | Jan. 26, 2013 Power Products | Apr. 27, 2013 Hetronic Italy | Sep. 30, 2012 Hetronic Italy
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ 17.2 | $ 12.9 | $ 16.4 | $ 16.4 | $ 11.9 | $ 11.1 | $ 11.1 | $ 12.0 | $ 1.0 | $ 5.3 | $ 5.3 | $ 5.2 |  | $ 0.8
Impairment | (4.3) | (1.7) | (4.3) | 0 |  | 0 |  |  |  | (4.3) |  |  |  |
Attributable to acquisitions |  |  | 0.8 | 0 |  | 0.8 | 0 |  |  | 0 | 0 |  | 0.8 |
Foreign currency translation |  | 0.1 | 0 |  | 0.1 | 0 |  |  | 0 | 0 |  |  |  |
Ending balance | $ 12.9 | $ 13.0 | $ 12.9 | $ 16.4 | $ 12.0 | $ 11.9 | $ 11.1 | $ 12.0 | $ 1.0 | $ 1.0 | $ 5.3 | $ 5.2 |  | $ 0.8

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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