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Commitments and Contingencies - Litigation (Details) $ in Millions | 1 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Mar. 31, 2011 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2018 USD ($)
Court of Ouargla Algeria Foreign Currency Controls |  |  |
Commitments and Contingencies, Disclosure |  |  |
Litigation amount as per judgment | $ 21.0 |  |
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 |
Court of Ouargla Algeria Foreign Currency Controls | Maximum |  |  |
Commitments and Contingencies, Disclosure |  |  |
Potential judgment in excess of accrual |  | $ 13.0 |
KMG Nabors Drilling Company Joint Venture | Atyrau Oblast Ecology Department |  |  |
Commitments and Contingencies, Disclosure |  |  |
Administrative fines |  |  | $ 0.8
KMG Nabors Drilling Company Joint Venture | Atyrau Oblast Ecology Department | Minimum |  |  |
Commitments and Contingencies, Disclosure |  |  |
Environmental damages |  |  | $ 3.4

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