Acquisitions - Summary Pro Forma Information (Details) - ERICO Global Company [Member] - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
Sep. 26, 2015	Sep. 26, 2015
Pro forma net sales	$ 1,231.6	$ 3,713.6
Pro forma net income from continuing operations	$ 122.9	$ 334.3
Basic	$ 0.68	$ 1.86
Diluted	$ 0.67	$ 1.83

Per basic share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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- Definition

Per diluted share amount of pro forma income from continuing operations, after tax, as if the business combination had been completed at the beginning of a period.

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Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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