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BASIS OF PRESENTATION (Details) € in Millions, $ in Millions |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 07, 2018 USD ($) | Mar. 01, 2018 USD ($) | Sep. 29, 2018 USD ($) | Jun. 30, 2018 USD ($) | Sep. 30, 2017 USD ($) | Jul. 01, 2017 USD ($) | Apr. 01, 2017 USD ($) | Sep. 29, 2018 USD ($) | Sep. 30, 2017 USD ($) | Jun. 07, 2018 USD ($) | Mar. 01, 2018 USD ($) | Jul. 31, 2018 EUR (€) | May 31, 2018 EUR (€) | Apr. 30, 2018 EUR (€)
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition, net of cash acquired |  |  |  |  |  |  |  | $ 182.6 | $ 0.0 |  |  |  |  |
Gain (loss) on disposition of discontinued operations, net of tax |  |  | $ (0.2) |  | $ 0.3 |  |  | $ 3.1 | 6.7 |  |  |  |  |
Length of second and third quarter |  |  |  |  |  |  |  | 91 days |  |  |  |  |  |
SPX Heat Transfer Business | Disposal Group, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal group, wind down charges |  |  |  | $ 2.0 |  |  |  |  |  |  |  |  |  |
Proceeds from sale of intangible assets |  |  |  | 4.8 |  |  |  |  |  |  |  |  |  |
Gain (loss) on disposition of intangible assets |  |  |  | 0.1 |  |  |  |  |  |  |  |  |  |
Balcke Durr Business |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on disposition of discontinued operations, net of tax |  |  |  | 3.8 |  | $ 3.8 |  |  |  |  |  |  |  |
Balcke Durr Business | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (reduction) of gain (loss) |  |  | (0.2) |  | 0.3 |  |  | $ 0.0 | (0.1) |  |  |  |  |
Balcke Durr Business | Discontinued Operations, Disposed of by Sale | Buyer |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (reduction) of gain (loss) |  |  |  |  | (0.4) | $ (0.4) | $ (7.2) |  |  |  |  |  |  |
Additional income tax benefit recorded from sale |  |  |  |  |  |  | 8.4 |  |  |  |  |  |  |
Adjustments to liabilities retained in connection with the sale |  |  |  |  |  |  | $ 1.2 |  |  |  |  |  |  |
Disposal group, including discontinued operation, consideration | € |  |  |  |  |  |  |  |  |  |  |  | € 1.0 | € 2.0 | € 3.0
Cues, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition, net of cash acquired | $ 166.2 |  |  |  |  |  |  |  |  |  |  |  |  |
Cash acquired | $ 20.6 |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  | 362.5 |  | $ 369.9 |  |  | $ 1,127.7 | $ 1,102.2 | $ 84.0 |  |  |  |
Schonstedt |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition, net of cash acquired |  | $ 16.4 |  |  |  |  |  |  |  |  |  |  |  |
Cash acquired |  | $ 0.3 |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  | $ 9.0 |  |  |
Cost of Sales | SPX Heat Transfer Business | Disposal Group, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal Group, inventory write-down |  |  |  | 0.9 |  |  |  |  |  |  |  |  |  |
Special Charges, Net | SPX Heat Transfer Business | Disposal Group, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disposal Group, asset impairment |  |  |  | 0.6 |  |  |  |  |  |  |  |  |  |
Disposal Group, severance costs |  |  | $ 0.8 | $ 0.5 |  |  |  |  |  |  |  |  |  |

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