Acquisitions - Pro Forma Information (Details) - Industrial Wood Acquisition [Member] - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Net sales	$ 2,197.6	$ 2,127.5
Net income	53.8	82.1
Net income attributable to controlling interests	$ 50.1	$ 79.6
Net income per share (Basic) (in dollars per share)	$ 0.21	$ 0.34
Net income per share (Diluted) (in dollars per share)	$ 0.20	$ 0.33

Business Acquisition, Pro Forma Net Income (Loss) Attributable to Parent

No definition available.

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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=79982066&loc=d3e1392-128463

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- Definition

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

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

+ References

+ Details

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- Definition

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

+ References

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