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Commitments and Contingencies - Litigation (Details) - Court of Ouargla Foreign Currency Controls $ in Millions |  | 1 Months Ended | 6 Months Ended
--- | --- | --- | ---
Dec. 31, 2006 USD ($) | Mar. 31, 2011 USD ($) | Jun. 30, 2018 USD ($)
Commitments and Contingencies, Disclosure |  |  |
Litigation amount as per judgment |  | $ 24.1 |
Payment of contract amount in foreign currency | $ 7.5 |  |
Payment of contract amount in domestic currency | $ 3.2 |  |
Approximate multiplier of the amount at issue for fines and penalties |  |  | 4
Maximum |  |  |
Commitments and Contingencies, Disclosure |  |  |
Potential judgment in excess of accrual |  |  | $ 16.1

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- Definition Potential judgment in excess of accrual related to foreign currency exchange control. + References No definition available. + Details
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- Details
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