Deferred Revenue and Extended Product Warranties (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Roofing Systems Product
Product Warranties
Deferred revenue recognized related to extended product warranties	$ 17.3	$ 21.5
Deferred revenue
Current	17.0	16.8
Long-term	142.8	134.2
Deferred revenue liability	159.8	151.0
Brake pads
Deferred revenue
Current	0.4	0.8
Long-term	0.8	1.2
Deferred revenue liability	$ 1.2	$ 2.0

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Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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Amount as of the balance sheet date of the aggregate extended product warranty liability. Does not include the ending balance for the standard product warranty liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount at end of the reporting period of the aggregate extended product warranty liability that is expected to be paid within one year of the balance sheet date or normal operating cycle, if longer. Does not include the balance for the standard product warranty liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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Amount at end of the reporting period of the aggregate extended product warranty liability that is expected to be paid after one year from the balance sheet date or normal operating cycle, if longer. Does not include the balance for the standard product warranty liability.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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