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EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Oct. 01, 2016 | Jul. 02, 2016 | Sep. 30, 2017 | Oct. 01, 2016
SIARP |  |  |  |  |
Employee Benefit Plans |  |  |  |  |
Percentage of projected benefit obligation |  |  | 22.00% |  |
Lump sum payment in lieu of future pension benefit |  |  | $ 2.7 |  |
Net periodic pension/postretirement benefit expense |  |  |  |  |
Recognized net actuarial gain |  |  | $ (0.8) |  |
Postretirement Plans |  |  |  |  |
Net periodic pension/postretirement benefit expense |  |  |  |  |
Service cost | $ 0.0 | $ 0.0 |  | $ 0.0 | $ 0.0
Interest cost | 0.9 | 1.1 |  | 2.8 | 3.2
Recognized net actuarial gain | (2.6) | 0.0 |  | (2.6) | 0.0
Amortization of unrecognized prior service credits | (0.2) | (0.2) |  | (0.6) | (0.6)
Net periodic pension benefit income | (1.9) | 0.9 |  | (0.4) | 2.6
United States | Pension Plan |  |  |  |  |
Net periodic pension/postretirement benefit expense |  |  |  |  |
Service cost | 0.1 | 0.1 |  | 0.3 | 0.3
Interest cost | 3.4 | 3.3 |  | 10.0 | 10.4
Expected return on plan assets | (2.5) | (3.2) |  | (7.5) | (9.6)
Recognized net actuarial loss | 0.0 | 0.0 |  | 0.0 | 1.8
Amortization of unrecognized prior service credits | (0.1) | (0.1) |  | (0.1) | (0.1)
Net periodic pension benefit income | 0.9 | 0.1 |  | 2.7 | 2.8
United States | Pension Plan | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | SPX Flow, Inc |  |  |  |  |
Employee Benefit Plans |  |  |  |  |
Percentage of projected benefit obligation |  |  | 9.00% |  |
Lump sum payment in lieu of future pension benefit |  |  | $ 25.2 |  |
Net periodic pension/postretirement benefit expense |  |  |  |  |
Recognized net actuarial gain |  |  | $ (1.0) |  |
Foreign Plan | Pension Plan |  |  |  |  |
Net periodic pension/postretirement benefit expense |  |  |  |  |
Service cost | 0.0 | 0.0 |  | 0.0 | 0.0
Interest cost | 1.2 | 1.4 |  | 3.6 | 4.3
Expected return on plan assets | (1.6) | (1.5) |  | (4.7) | (5.0)
Net periodic pension benefit income | (0.4) | (0.1) |  | (1.1) | (0.7)
Less: Net periodic pension benefit expense of discontinued operations | 0.0 | 0.1 |  | 0.0 | 0.1
Net periodic pension benefit income of continuing operations | (0.4) | $ (0.2) |  | $ (1.1) | $ (0.8)
U.S. Postretirement Plan (“OPEB”) |  |  |  |  |
Employee Benefit Plans |  |  |  |  |
Increase (decrease) for plan amendment | 26.8 |  |  |  |
(Increase) decrease for remeasurement due to settlement | $ 2.6 |  |  |  |

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- Definition For continuing operations, the amount of pension and other (such as medical, dental and life insurance) postretirement benefit costs recognized during the period for defined benefit plans (periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss) on assets, prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments). + References No definition available. + Details
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