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Income Taxes (Textuals) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Accrued liabilities for interest and penalties | $ 0.2 | $ 0.1 |
Total gross unrecognized tax benefits | 3.9 | 3.2 | $ 6.2
Estimated reduction in the liability for unrecognized tax benefits | 0.4 |  |
Discrete tax charge, Tax Cuts and Jobs Act of 2017 | 2.5 | 48.8 |
Income tax expense (benefit) | 41.4 | 80.9 | 54.4
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense | $ 20.4 | 27.9 |
Net impact to the 2018 effective tax rate | 1.45% |  |
Discrete tax charge, change in enacted rate, domestic |  | 11.4 |
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount | $ 7.5 |  |
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount | 4.0 |  |
Tax on undistributed earnings of subsidiaries | 6.6 | 9.8 |
Restructuring and related charges | 9.1 | 0.0 | 26.4
Discrete tax benefit, restructuring charges |  |  | 9.0
Pension curtailment gain | 0.0 | 0.0 | 2.1
Discrete tax charge, pension curtailment |  |  | 0.8
Discrete tax charge, change in enacted rate, foreign |  |  | $ 1.0
Undistributed earnings of foreign subsidiaries | 79.7 |  |
Accounting Standards Update 2016-09 [Member] |  |  |
Income tax expense (benefit) | $ 14.3 | $ 33.1 |

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