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Reconciliation of Total Segment Adjusted EBITDA to Income Before Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Segment Reporting Information [Line Items] |  |  |  |
Total Segment Adjusted EBITDA | $ 275.0 | $ 297.8 | $ 939.9 | $ 807.2
Interest expense | (54.9) | (57.5) | (162.5) | (139.9)
Depreciation and amortization | (132.9) | (122.6) | (390.9) | (303.4)
Restructuring and acquisition-related costs | (11.7) | (22.8) | (66.8) | (90.5)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement | 0.0 | (2.9) | 0.0 | (2.9)
Gain on sale of business | 0.0 | 0.0 | 15.5 | 0.0
Gain (loss) on settlement of capital lease | 0.0 | 0.0 | 15.6 | 0.0
Acquisition-related fair value inventory adjustment | 0.0 | 0.0 | 0.0 | (24.9)
Impact of change in accounting principle | 0.0 | 0.0 | 0.0 | 3.7
Debt refinancing and redemption costs | 0.0 | 0.0 | (14.6) | (2.7)
Income before income taxes | 75.5 | 92.0 | 336.2 | 246.6
Pension Plan [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement | $ 0.0 | $ (2.9) | $ 0.0 | $ (2.9)

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- Definition Fair Value Inventory Adjustment from Acquisition of MPG - Inventory in process written up to fair value in purchase accounting that was sold in the period. Cost of goods sold (inventory) artificially high due to fair value mark up. + References No definition available. + Details
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- Definition Segment Adjusted EBITDA is defined as earnings before interest, income taxes, depreciation and amortization for our reportable segments, excluding the impact of restructuring and acquisition-related costs, debt refinancing and redemption costs and non-recurring items + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(7) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e2709-114920 + Details
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