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Guarantees and Indemnifications (Details) CAD in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2002 CAD
Product Liability Contingency [Line Items]
Indemnity | CAD							CAD 15.0
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning Balance	$ 31.4	$ 29.3
Product Warranty Accrual, Warranties Issued	0.7	0.6	$ 0.7
Adjustment related to product related warranty reserves	(1.4)	11.3	(17.7)
Product Warranty Accrual, Discontinued Operations	(2.5)	(3.0)	(2.0)
Product Warranty Accrual, Currency Translation, Increase (Decrease)	(0.5)	(1.2)	0.0
Product Warranty Accrual, Payments	(11.7)	(11.6)	(12.5)
Ending Balance	31.4	29.3	29.3	$ 21.0	$ 31.4	$ 21.4
Current portion of warranty reserves			(12.0)	(6.0)	(12.0)
Long-term portion of warranty reserves			17.3	$ 15.0	$ 19.4
decking [Member]
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Product Warranty Accrual, Warranties Issued		3.0
Damages from Product Defects [Member]
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Product Warranty Accrual, Warranties Issued	(1.4)
Product Warranty Accrual, Discontinued Operations	$ (2.5)	$ 3.0	$ (2.0)

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Indemnity

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Product Warranty Accrual, Discontinued Operations

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
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-Paragraph 8
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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Total Increase or Decrease in the standard and extended product warranty liability due to currency translation.

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Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers.

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Represents the aggregate decrease in the liability related to payments to satisfy claims for standard and extended product warranties.

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Represents the aggregate Increase or Decrease in the liability during the reporting period for accruals related to preexisting standard and extended product warranties (including adjustments for changes in estimates).

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Represents the aggregate increase in the liability for accruals related to standard and extended product warranties issued during the reporting period.

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