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- Definition

Plant closure provisions fair value disclosure.

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- Definition

Short-term investments fair value disclosure.

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No definition available.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

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- Definition

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References

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Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References

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Fair value as of the balance sheet date of foreign currency derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets on the balance sheet.

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Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities on the balance sheet.

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Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Non-financial assets (Level 3 measurement):
Goodwill-Octane Additives	$ 140.5	$ 141.5	$ 141.9
Octane Additives [Member]
Non-financial assets (Level 3 measurement):
Goodwill-Octane Additives	1.5		2.9
Carrying Amount [Member]
Non-derivatives:
Cash and cash equivalents	129.6	76.2
Short-term investments	4.0	4.8
Non-financial assets (Level 3 measurement):
Goodwill-Octane Additives	1.5	2.6
Derivatives (Level 1 measurement):
Other non-current assets - commodity swaps	0.1	0.2
Foreign currency forward exchange contracts	0.8	0
Non-derivatives:
Long-term debt (including current portion)	34.0	35.0
Non-financial liabilities (Level 3 measurement):
Plant closure provisions - remediation	27.4	27.1
Carrying Amount [Member] \| Interest rate swaps [Member]
Derivatives (Level 1 measurement):
Other non-current liabilities - interest rate swaps	0	0.1
Carrying Amount [Member] \| Foreign currency forward exchange contracts [Member]
Derivatives (Level 1 measurement):
Foreign currency forward exchange contracts	0	0.5
Fair value [Member]
Non-derivatives:
Cash and cash equivalents	129.6	76.2
Short-term investments	4.0	4.8
Non-financial assets (Level 3 measurement):
Goodwill-Octane Additives	1.5	2.6
Derivatives (Level 1 measurement):
Other non-current assets - commodity swaps	0.1	0.2
Foreign currency forward exchange contracts	0.8	0
Non-derivatives:
Long-term debt (including current portion)	34.0	35.0
Non-financial liabilities (Level 3 measurement):
Plant closure provisions - remediation	27.4	27.1
Fair value [Member] \| Interest rate swaps [Member]
Derivatives (Level 1 measurement):
Other non-current liabilities - interest rate swaps	0	0.1
Fair value [Member] \| Foreign currency forward exchange contracts [Member]
Derivatives (Level 1 measurement):
Foreign currency forward exchange contracts	$ 0	$ 0.5