Restructuring and Impairment Charges - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013 Employee	Mar. 31, 2012 Employee
Restructuring Cost And Reserve [Line Items]
Employee termination cost	$ 8.8	$ 36.8
Number of employees used to determine employee termination costs	393	1,365
Number of employees who were terminated as of date	127	1,365
Other restructuring charges	9.8	3.9
Impairment charges	4.1	9.3
Current restructuring reserve (included in accrued liabilities)	31.6
Noncurrent restructuring reserve (included in noncurrent liabilities)	49.3
Lease Terminations And Other
Restructuring Cost And Reserve [Line Items]
Other restructuring charges	9.8	3.9
Machinery and Equipment
Restructuring Cost And Reserve [Line Items]
Impairment charges	$ 4.1	$ 9.3
Domestic
Restructuring Cost And Reserve [Line Items]
Number of manufacturing facilities closed	2	2
International Segment
Restructuring Cost And Reserve [Line Items]
Number of manufacturing facilities closed		1

The charge against earnings in the period, comprised of costs associated with restructuring activities not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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- Definition

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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- Definition

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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

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