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Income Taxes - Tax Provision (Benefit), Reconciliation, and Tax Rates (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
U.S. and foreign income before income taxes |  |  |  |
United States | $ 1.2 | $ 56.5 | $ 31.8 |
Foreign | 218.1 | 213.0 | 214.9 |
Income before income taxes | 219.3 | 269.5 | 246.7 |
Current: |  |  |  |
U.S. federal statutory tax | (10.7) | 14.8 | 8.2 |
State | 0.6 | 2.5 | 1.8 |
Foreign | 29.6 | 22.0 | 36.2 |
Total current income tax provision (benefit) | 19.5 | 39.3 | 46.2 |
Deferred: |  |  |  |
U.S. federal statutory tax | 4.6 | 10.7 | 2.2 |
State | 3.0 | 2.7 | 0.6 |
Foreign | (14.8) | (3.0) | (11.0) |
Total deferred income (loss) before income taxes | (7.2) | 10.4 | (8.2) |
Non-current tax expense (income) | 24.0 | 1.4 | 1.5 |
Income tax provision | $ 36.3 | $ 51.1 | $ 39.5 | $ 38.2
Reconciliation of U.S. federal statutory income tax rate to effective income tax rate |  |  |  |
U.S. federal statutory tax rate (as a percent) | 35.00% | 35.00% | 35.00% |
Foreign earnings, net of foreign taxes (as a percent) | (28.20%) | (18.10%) | (18.70%) |
State income taxes, net of U.S. federal income tax benefit (as a percent) | 1.10% | 1.30% | 0.60% |
U.S. tax on deemed dividends | 6.10% | 1.00% | 1.40% |
Brazil foreign currency effect on other comprehensive income | (5.40%) | (1.50%) | (1.40%) |
Other permanent differences (as a percent) | 8.00% | 1.30% | (0.90%) |
Effective income tax rate (as a percent) | 16.60% | 19.00% | 16.00% | 16.00%
Effective income tax rate, excluding gain on sale of crude oil joint venture interests (as a percent) |  | 17.70% |  |
Earnings attributable to foreign subsidiaries | $ 1,500.0 | $ 1,300.0 |  |
Amount of income tax liability accrued | $ 0.0 | $ 0.0 |  |

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