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Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Income from operations before income taxes and income from affiliates and joint ventures [Abstract] |  |  |
Domestic | $ 66.0 | $ 21.4 | $ 46.9
Foreign | 136.3 | 116.6 | 110.4
Income from operations before tax and equity in earnings | 202.3 | 138.0 | 157.3
Domestic [Abstract] |  |  |
Taxes currently payable, Federal | (5.3) | (7.1) | (3.3)
Taxes currently payable, State and local | 0.4 | 0.2 | 0.8
Deferred income taxes | 7.8 | 2.2 | (6.6)
Domestic tax provision (benefit) | 2.9 | (4.7) | (9.1)
Foreign [Abstract] |  |  |
Taxes currently payable | 33.4 | 34.0 | 26.7
Deferred income taxes | 0.3 | (4.9) | 5.2
Foreign tax provision | 33.7 | 29.1 | 31.9
Total tax provision (benefit) | $ 36.6 | $ 24.4 | $ 22.8
Reconciliation of U.S. federal statutory tax rate to effective tax rate [Abstract] |  |  |
U.S. statutory rate | 21.00% | 21.00% | 21.00%
Depletion | (5.40%) | (6.20%) | (5.00%)
Difference between tax provided on foreign earnings and the U.S. statutory rate | 2.60% | 3.30% | 3.80%
Global Intangible Low-Tax Income (GILTI) | 0.70% | 0.40% | 0.00%
Foreign Derived Intangible Income | (1.40%) | (1.00%) | (0.80%)
State and local taxes, net of federal tax benefit | 0.70% | 0.00% | 0.20%
Tax credits and foreign dividends | (0.40%) | (0.60%) | (0.70%)
Change in valuation allowance | 0.00% | 0.00% | 1.00%
Impact of uncertain tax positions | (1.10%) | (0.20%) | (5.00%)
Impact of officer's non-deductible compensation | 0.80% | 1.00% | 0.80%
Impact of U.S. Tax Reform | 0.00% | 0.00% | (1.10%)
Other | 0.60% | 0.00% | 0.30%
Consolidated effective tax rate | 18.10% | 17.70% | 14.50%
Deferred tax assets attributable to [Abstract] |  |  |
Accrued liabilities | $ 29.7 | $ 29.8 |
Net operating loss carry forwards | 31.8 | 31.1 |
Pension and post-retirement benefits costs | 31.4 | 46.3 |
Other | 22.4 | 28.2 |
Valuation allowance | (22.3) | (20.9) |
Total deferred tax assets | 93.0 | 114.5 |
Deferred tax liabilities attributable to [Abstract] |  |  |
Plant and equipment, principally due to differences in depreciation | 178.8 | 169.5 |
Intangible assets | 69.3 | 69.5 |
Other | 10.0 | 13.9 |
Total deferred tax liabilities | 258.1 | 252.9 |
Net deferred tax asset (liability), long-term | (165.1) | (138.4) |
Current and long-term portion of net deferred tax assets [Abstract] |  |  |
Net deferred tax asset, long-term | 23.0 | 25.3 |
Net deferred tax liability, long-term | 188.1 | 163.7 |
Net deferred tax asset (liability), long-term | (165.1) | (138.4) |
Operating loss carryforwards [Abstract] |  |  |
Deferred tax assets arising from tax loss carry forwards which will be realized through future operations | 31.8 |  |
Unrecognized tax benefits [Abstract] |  |  |
Unrecognized tax benefits that would impact effective tax rate | 3.6 |  |
Unrecognized tax benefits [Roll forward] |  |  |
Balance at beginning of the year | 7.6 | 7.9 |
Increases related to current year tax positions | 0.6 | 0.7 |
Increases related to new judgments | 0.2 | 0.0 |
Decreases related to audit settlements and statute expirations | (3.3) | (1.0) |
Balance at the end of the year | 5.1 | 7.6 | $ 7.9
Income Tax Penalties and Interest Expense [Abstract] |  |  |
Unrecognized tax benefits, interest and penalties | 0.8 |  |
Unrecognized tax benefits, accrued interest and penalties | 1.2 |  |
Cash paid for income taxes [Abstract] |  |  |
Net cash Income taxes paid | 42.5 | $ 28.5 | $ 29.5
Undistributed earnings of foreign subsidiaries [Abstract] |  |  |
Foreign subsidiaries' undistributed earnings | 481.4 |  |
Deferred tax liabilities with respect to foreign withholding taxes or state taxes have been recognized | 0.0 |  |
Finite lived tax loss carry forwards [Member] |  |  |
Operating loss carryforwards [Abstract] |  |  |
Deferred tax assets arising from tax loss carry forwards which will be realized through future operations | $ 17.8 |  |
Expiration period | 20 years |  |
Indefinite lived tax loss carry forwards [Member] |  |  |
Operating loss carryforwards [Abstract] |  |  |
Deferred tax assets arising from tax loss carry forwards which will be realized through future operations | $ 14.0 |  |

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