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Commitments and Contingencies (Details) |  |  | 1 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 01, 2020 USD ($) enforcementAction | Jun. 04, 2018 USD ($) | Aug. 31, 2005 USD ($) | Jun. 30, 2020 USD ($) case defendant claim enforcementAction | Dec. 31, 2019 USD ($) | Nov. 01, 2019 USD ($) | Nov. 01, 2019 BRL (R$) | Jun. 13, 2019 USD ($) | Mar. 19, 2019 USD ($) | Mar. 19, 2019 BRL (R$)
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Reserve for loss contingencies |  |  |  | $ 7,000,000.0 |  |  |  |  |  |
Penalties per day |  |  |  |  |  | $ 5,000 | R$ 25,000 |  | $ 900 | R$ 5,000
Penalties |  |  |  |  |  | 1,900,000 | 10,000,000 |  |  |
Current Portion of Environmental Liabilities |  |  |  | 6,115,000 | $ 3,431,000 |  |  |  |  |
Total Environmental Liabilities |  |  |  | $ 36,142,000 | 9,031,000 |  |  |  |  |
Enforcement Actions | enforcementAction |  |  |  | 3 |  |  |  |  |  |
Events | enforcementAction | 3 |  |  |  |  |  |  |  |  |
Pennsylvania Department Of Environmental Protection, Processed Slag | Threatened Litigation |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Loss contingency reserves |  |  |  |  |  |  |  | $ 400,000 |  |
Netherlands |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Damages sought - interest, penalties and fees |  |  |  | $ 500,000 |  |  |  |  |  |
Allegheny County Health Department [Member] |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Penalties | $ 4,500 |  |  |  |  |  |  |  |  |
Damages sought - interest, penalties and fees |  |  |  | 100,000 |  |  |  |  |  |
Brazilian Tax Disputes - Jan 2004 through May 2005 | Sao Paulo State Revenue Authority |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Damages sought - interest, penalties and fees |  |  |  | 15,700,000 |  |  |  |  |  |
Damages sought - principal |  |  |  | 1,100,000 |  |  |  |  |  |
Loss contingency, reduced penalty |  | $ 1,000,000 |  |  |  |  |  |  |  |
Amount of damages sought |  | $ 7,000,000 |  |  |  |  |  |  |  |
Brazilian Tax Disputes - Jan 2002 through Dec 2003 | Sao Paulo State Revenue Authority |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Damages sought - interest, penalties and fees |  |  | $ 3,600,000 |  |  |  |  |  |  |
Damages sought - principal |  |  | 1,100,000 |  |  |  |  |  |  |
Loss contingency, reduced penalty |  |  | 1,100,000 |  |  |  |  |  |  |
Amount of damages sought |  |  | 4,700,000 |  |  |  |  |  |  |
Loss contingency, reduced penalty, including interest |  |  | $ 9,300,000 |  |  |  |  |  |  |
Brazilian Labor Claims |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Loss contingency reserves |  |  |  | $ 4,600,000 | $ 6,500,000 |  |  |  |  |
Other |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Approximate number of defendants that includes the company named in legal actions | defendant |  |  |  | 90 |  |  |  |  |  |
Number of pending claims | claim |  |  |  | 17,140 |  |  |  |  |  |
Number of claims dismissed to date by stipulation or summary judgment prior to trial | case |  |  |  | 28,253 |  |  |  |  |  |
Other | Active or In Extremis docket |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Number of pending claims | claim |  |  |  | 35 |  |  |  |  |  |
Other | Minimum |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Amount of damages sought |  |  |  | $ 20,000,000 |  |  |  |  |  |
Other | Maximum |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Amount of damages sought |  |  |  | $ 25,000,000 |  |  |  |  |  |
Other | New York County as managed by the New York Supreme Court |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Number of pending claims | case |  |  |  | 16,585 |  |  |  |  |  |
Other | New York County as managed by the New York Supreme Court | Pending And Future Litigation, Deferred Or Inactive Docket |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Number of pending claims | claim |  |  |  | 16,550 |  |  |  |  |  |
Other | New York State Supreme Court, Counties Excluding New York County |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Number of pending claims | case |  |  |  | 117 |  |  |  |  |  |
Other | Courts Located In States Other Than New York |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Number of pending claims | case |  |  |  | 438 |  |  |  |  |  |
CSN |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Penalties per day |  |  |  |  |  | $ 19,000 | R$ 100,000 |  | $ 4,000 | R$ 20,000
Bahrain Operations, Salt Cake Processing Site [Member] |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies |  |  |  |  |  |  |  |  |  |
Minority interest |  |  |  | 35.00% |  |  |  |  |  |

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