Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Other Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended				9 Months Ended									9 Months Ended											1 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2013 Internally Developed Software and Other Costs [Member]	Sep. 30, 2012 Internally Developed Software and Other Costs [Member]	Sep. 30, 2013 Others [Member]	Sep. 30, 2013 Cost of Goods Sold [Member] Others [Member]	Sep. 30, 2012 Cost of Goods Sold [Member] Others [Member]	Sep. 30, 2013 Selling, General and Administrative Expenses [Member] Others [Member]	Sep. 30, 2012 Selling, General and Administrative Expenses [Member] Others [Member]	Sep. 30, 2013 Strata [Member]	Dec. 24, 2012 Strata [Member]	Sep. 30, 2013 Strata [Member] Technology [Member]	Sep. 30, 2013 Strata [Member] Customer Relationships [Member]	Sep. 30, 2013 Strata [Member] Non-Compete Agreements [Member]	Sep. 30, 2013 Strata [Member] Cost of Goods Sold [Member] Technology [Member]	Sep. 30, 2012 Strata [Member] Cost of Goods Sold [Member] Technology [Member]	Sep. 30, 2013 Strata [Member] Selling, General and Administrative Expenses [Member] Customer Relationships [Member]	Sep. 30, 2012 Strata [Member] Selling, General and Administrative Expenses [Member] Customer Relationships [Member]	Sep. 30, 2013 Strata [Member] Selling, General and Administrative Expenses [Member] Non-Compete Agreements [Member]	Sep. 30, 2012 Strata [Member] Selling, General and Administrative Expenses [Member] Non-Compete Agreements [Member]	Sep. 30, 2013 Chemsil and Chemtec [Member]	Aug. 30, 2013 Chemsil and Chemtec [Member]	Sep. 30, 2013 Chemsil and Chemtec [Member] Administrative Expenses [Member]	Sep. 30, 2012 Chemsil and Chemtec [Member] Administrative Expenses [Member]
Finite-Lived Intangible Assets [Line Items]
Percentage of voting equity interest acquired															100.00%											100.00%
Allocation of purchase price to other intangible assets														$ 48.0		$ 18.3	$ 28.2	$ 1.5							$ 33.7
Weighted average expected life														13 years 1 month 6 days		16 years 6 months	11 years 6 months	2 years							9 years
Amortization expense	2.4	1.1	6.6	3.1			0	0		2.0	2.0	1.1	1.1						0.8	0	1.8	0	0.6	0			0.3	0
Intangible asset	$ 149.0	$ 57.8	$ 149.0	$ 57.8	$ 106.2	$ 51.2	$ 19.1	$ 9.5	$ 48.2
Assets being amortized duration									13 years