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Derivative Instruments and Risk Management (Tables) | 12 Months Ended
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Dec. 31, 2012
Derivative Instruments and Risk Management [Abstract] |
Summary of commodity swaps |
|  | December 31, 2012 |  |  | December 31, 2011 |
(in millions) |  | Carrying Amount |  |  | Fair Value |  |  | Carrying Amount |  |  | Fair Value |
Notional quantity – 2,075 tonnes |  |  |  |  |  |  |  |  |  | $ | 0.2 |  |  | $ | 0.2 |
Notional quantity – 275 tonnes |  | $ | 0.1 |  |  | $ | 0.1 |  |  |  |  |  |  |  |  |
Summary of impact on the income statement of derivatives designated as hedging instruments |
(in millions) |  | Gain/(Loss) Recognized in OCI on Derivative |  |  | Location of Gain/(Loss) Reclassified from Accumulated OCI into Income |  | Amount of Gain/(Loss) Reclassified from Accumulated OCI into Income |
Commodity contracts |  | $ | 0.1 |  |  | Cost of goods sold |  | $ | 0.3 |
Taxation |  |  | 0.0 |  |  | Income taxes |  |  | (0.1 | )
|  | $ | 0.1 |  |  |  |  | $ | 0.2 |
Summary of foreign currency forward exchange contracts which have not been designated as hedging instruments and their impact on the income statement |
|  | Location of Gain/(Loss) Recognized in Income |  | Amount of Gain/(Loss) Recognized in Income |
(in millions) |  |  | 2012 |  |  | 2011 |  |  | 2010 |
Foreign currency forward exchange contracts |  | Other income/(expense) |  | $ | 1.2 |  |  | $ | 1.3 |  |  | $ | 0.9 |

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- Definition Schedule of commodity swaps. + References No definition available. + Details
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- Definition Tabular disclosure of the effective portion of gains and losses on derivative instruments (and nonderivative instruments) designated and qualifying in cash flow hedges recorded in accumulated other comprehensive income (loss) during the term of the hedging relationship and reclassified into earnings during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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