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Fair Value (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  |
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Dec. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2012 Thermal Equipment and Services reportable segment business | Dec. 31, 2011 Thermal Equipment and Services reportable segment | Dec. 31, 2010 Thermal Equipment and Services reportable segment | Dec. 31, 2012 Cooling | Dec. 31, 2012 Cooling | Dec. 31, 2011 SPX Heat Transfer Inc. | Jul. 02, 2011 SPX Heat Transfer Inc. | Dec. 31, 2011 SPX Heat Transfer Inc. | Dec. 31, 2012 Senior Notes | Dec. 31, 2011 Senior Notes | Dec. 31, 2012 Term Loans | Dec. 31, 2011 Term Loans | Dec. 31, 2012 Other indebtedness | Dec. 31, 2011 Other indebtedness | Dec. 31, 2012 Quoted Prices in Active Markets for Identical Assets (Level 1) Current assets - Investment in equity securities | Dec. 31, 2011 Quoted Prices in Active Markets for Identical Assets (Level 1) Current assets - Investment in equity securities | Dec. 31, 2012 Significant Observable Inputs (Level 2) Current assets - FX embedded derivatives, FX forward contracts and commodity contracts | Dec. 31, 2011 Significant Observable Inputs (Level 2) Current assets - FX embedded derivatives, FX forward contracts and commodity contracts | Dec. 31, 2012 Significant Observable Inputs (Level 2) Current liabilities - FX forward contracts, FX embedded derivatives, and commodity contracts | Dec. 31, 2011 Significant Observable Inputs (Level 2) Current liabilities - FX forward contracts, FX embedded derivatives, and commodity contracts | Dec. 31, 2012 Significant Observable Inputs (Level 2) Long-term liabilities - FX embedded derivatives | Dec. 31, 2011 Significant Observable Inputs (Level 2) Long-term liabilities - FX embedded derivatives | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) | Dec. 31, 2012 Significant Unobservable Inputs (Level 3) Current assets - Investment in equity securities | Dec. 31, 2011 Significant Unobservable Inputs (Level 3) Current assets - Investment in equity securities
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of derivative assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.6 | $ 5.2 | $ 0.7 | $ 1.2 |  |  |  |  |  |  | $ 7.5 | $ 7.8
Fair value of derivative liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.3 | 1.9 | 9.8 | 14.8 |  |  |  |
Trademarks impairment loss |  |  |  |  |  |  |  |  |  |  | 7.5 | 7.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reconciliation of investment in equity securities measured at fair value using significant unobservable inputs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.8 | 8.5 |  |
Unrealized losses recorded to earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (0.3) | (0.7) |  |
Balance at end of period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.5 | 7.8 |  |
Number of business |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment charges |  | 281.4 |  |  | 4.5 | 7.5 |  | 11.0 | 11.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Special charges relating to asset impairments |  | 3.4 | 8.2 | 6.8 | 1.6 |  | 4.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of asset |  |  |  | 4.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairments | 270.4 | 270.4 | 20.8 |  | 270.4 | 20.8 |  | 270.4 | 270.4 | 3.6 | 17.2 | 20.8 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of debt instruments |  |  |  |  |  |  |  |  |  |  |  |  | 1,217.8 | 1,198.0 | 475.0 | 800.0 | 34.7 | 75.1 |  |  |  |  |  |  |  |  |  |  |  |
Carrying value of debt instruments |  |  |  |  |  |  |  |  |  |  |  |  | 1,100.0 | 1,100.0 | 475.0 | 800.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying value of debt instruments | $ 1,692.0 | $ 1,692.0 | $ 2,001.1 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 34.7 | $ 75.1 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Loss recognized during the period that results from the write-down of goodwill after comparing the implied fair value of reporting unit goodwill with the carrying amount of that goodwill. Goodwill is assessed at least annually for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 20 -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 142 -Paragraph 45 -Subparagraph e -Clause 5 -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 Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 72 -Subparagraph d -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 47 -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13816-109267 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 43 -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 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6905597&loc=d3e13854-109267 + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an indefinite-lived intangible asset, other than goodwill, to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 46 -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16373-109275 + Details
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- Definition Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 7 -Section 03 -Paragraph 16 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
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