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Quarterly Results (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Dec. 31, 2012 | Sep. 29, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Quarterly Results (Unaudited) |  |  |  |  |  |  |  |  |  |  |
Operating revenues | $ 1,319.0 | $ 1,145.8 | $ 1,161.9 | $ 1,090.5 | $ 1,366.0 | $ 1,176.7 | $ 1,182.0 | $ 1,106.3 | $ 4,717.2 | $ 4,831.0 | $ 4,272.9
Gross profit | 397.6 | 336.8 | 330.1 | 293.1 | 382.0 | 320.8 | 319.8 | 291.0 |  |  |
Income (loss) from continuing operations, net of tax | 84.4 | 63.1 | 39.2 | 14.6 | (275.7) | 53.8 | 35.5 | 9.8 | 201.3 | (176.6) | 132.7
Income from discontinued operations | 2.5 | 5.4 | 8.0 | (4.6) | 321.0 | 12.0 | 18.2 | 8.6 | 11.3 | 359.8 | 43.5
Net income | 86.9 | 68.5 | 47.2 | 10.0 | 45.3 | 65.8 | 53.7 | 18.4 | 212.6 | 183.2 | 176.2
Less: Net income (loss) attributable to noncontrolling interests | (0.1) | (0.8) | 2.0 | 1.3 | 0.3 | 2.4 | 0.8 | (0.7) | 2.4 | 2.8 | 5.0
Net income attributable to SPX Corporation common shareholders | 87.0 | 69.3 | 45.2 | 8.7 | 45.0 | 63.4 | 52.9 | 19.1 | 210.2 | 180.4 | 171.2
Basic income (loss) per share of common stock: |  |  |  |  |  |  |  |  |  |  |
Continuing operations (in dollars per share) | $ 1.89 | $ 1.43 | $ 0.81 | $ 0.29 | $ (5.56) | $ 1.03 | $ 0.69 | $ 0.21 | $ 4.39 | $ (3.59) | $ 2.53
Discontinued operations, net of tax (in dollars per share) | $ 0.05 | $ 0.12 | $ 0.18 | $ (0.10) | $ 6.47 | $ 0.24 | $ 0.37 | $ 0.17 | $ 0.24 | $ 7.20 | $ 0.86
Net income per share attributable to SPX Corporation common shareholders (in dollars per share) | $ 1.94 | $ 1.55 | $ 0.99 | $ 0.19 | $ 0.91 | $ 1.27 | $ 1.06 | $ 0.38 | $ 4.63 | $ 3.61 | $ 3.39
Diluted income (loss) per share of common stock: |  |  |  |  |  |  |  |  |  |  |
Continuing operations (in dollars per share) | $ 1.85 | $ 1.42 | $ 0.81 | $ 0.28 | $ (5.56) | $ 1.03 | $ 0.68 | $ 0.20 | $ 4.33 | $ (3.59) | $ 2.51
Discontinued operations, net of tax (in dollars per share) | $ 0.06 | $ 0.12 | $ 0.17 | $ (0.10) | $ 6.47 | $ 0.24 | $ 0.36 | $ 0.17 | $ 0.24 | $ 7.20 | $ 0.85
Net income per share attributable to SPX Corporation common shareholders (in dollars per share) | $ 1.91 | $ 1.54 | $ 0.98 | $ 0.18 | $ 0.91 | $ 1.27 | $ 1.04 | $ 0.37 | $ 4.57 | $ 3.61 | $ 3.36
Other Information Related to Quarterly Results |  |  |  |  |  |  |  |  |  |  |
Pension liability adjustment, tax benefit |  |  |  |  |  |  |  |  | 1.0 | 0.8 | 1.1
Income (loss) from continuing operations | 84.4 | 63.1 | 39.2 | 14.6 | (275.7) | 53.8 | 35.5 | 9.8 | 201.3 | (176.6) | 132.7
Impairment charges |  |  |  |  |  |  |  |  | 6.7 | 285.9 | 28.3
Goodwill impairments |  |  |  |  |  |  |  |  |  | 270.4 |
Number of days in the quarter |  | 91 days | 91 days |  |  | 91 days | 91 days |  |  |  |
SPX Service Solutions (Service Solutions) |  |  |  |  |  |  |  |  |  |  |
Other Information Related to Quarterly Results |  |  |  |  |  |  |  |  |  |  |
Gain on disposition of discontinued operations, net of tax |  |  |  |  | 313.4 |  |  |  |  |  |
Thermal Equipment and Services reportable segment |  |  |  |  |  |  |  |  |  |  |
Quarterly Results (Unaudited) |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  | 1,344.2 | 1,490.9 | 1,636.4
Other Information Related to Quarterly Results |  |  |  |  |  |  |  |  |  |  |
Goodwill impairments |  |  |  |  |  |  |  |  |  | 270.4 |
Impairment of intangible assets |  |  |  |  |  |  |  |  |  | 4.5 |
Cooling |  |  |  |  |  |  |  |  |  |  |
Other Information Related to Quarterly Results |  |  |  |  |  |  |  |  |  |  |
Impairment charges |  |  |  |  | 281.4 |  |  |  |  | 281.4 |
Goodwill impairments |  |  |  |  | 270.4 |  |  |  |  | 270.4 |
Impairment of intangible assets |  |  |  |  | 11.0 |  |  |  |  | 11.0 |
Income tax benefit associated with the impairment charges |  |  |  |  | 26.3 |  |  |  |  | 26.3 |
Restatement adjustment |  |  |  |  |  |  |  |  |  |  |
Quarterly Results (Unaudited) |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations, net of tax |  |  |  |  |  |  |  |  | 272.7 | (77.0) | (12.0)
Income from discontinued operations |  |  |  |  |  |  |  |  | 3.1 | (0.4) | (8.1)
Net income |  |  |  |  |  |  |  |  | 275.8 | (77.4) | (20.1)
Net income attributable to SPX Corporation common shareholders |  |  |  |  |  |  |  |  | 275.8 | (77.4) | (20.1)
Basic income (loss) per share of common stock: |  |  |  |  |  |  |  |  |  |  |
Continuing operations (in dollars per share) |  |  |  |  |  |  |  |  | $ 6.01 | $ (1.54) | $ (0.24)
Discontinued operations, net of tax (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.07 |  | $ (0.16)
Net income per share attributable to SPX Corporation common shareholders (in dollars per share) |  |  |  |  |  |  |  |  | $ 6.08 | $ (1.54) | $ (0.40)
Diluted income (loss) per share of common stock: |  |  |  |  |  |  |  |  |  |  |
Continuing operations (in dollars per share) |  |  |  |  |  |  |  |  | $ 5.95 | $ (1.54) | $ (0.23)
Discontinued operations, net of tax (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.07 |  | $ (0.16)
Net income per share attributable to SPX Corporation common shareholders (in dollars per share) |  |  |  |  |  |  |  |  | $ 6.02 | $ (1.54) | $ (0.39)
Other Information Related to Quarterly Results |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  |  |  |  |  |  |  |  | 272.7 | (77.0) | (12.0)
Unidentified taxable earnings | Restatement adjustment |  |  |  |  |  |  |  |  |  |  |
Quarterly Results (Unaudited) |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations, net of tax |  |  |  |  | (1.7) | 0.1 | 0.1 | 0.1 |  | (1.4) | 10.7
Net income |  |  |  |  |  |  |  |  |  | (1.4) | 10.7
Net income attributable to SPX Corporation common shareholders |  |  |  |  |  |  |  |  |  | (1.4) | 10.7
Other Information Related to Quarterly Results |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  |  |  |  | (1.7) | 0.1 | 0.1 | 0.1 |  | (1.4) | 10.7
Pension and postretirement benefit plans |  |  |  |  |  |  |  |  |  |  |
Other Information Related to Quarterly Results |  |  |  |  |  |  |  |  |  |  |
Gains (losses) related to changes in the fair value of plan assets and actuarial gains (losses) | 0.8 |  |  |  | (149.9) |  |  |  | 0.8 | (149.9) |
Pension liability adjustment, tax benefit | $ (1.7) |  |  |  | $ 52.9 |  |  |  |  |  |

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