Commitments and Contingencies - Litigation (Details) $ in Millions	1 Months Ended	12 Months Ended
	Mar. 31, 2011 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Commitments and Contingencies, Disclosure
Approximate multiplier of the amount at issue for fines and penalties			4
Court of Ouargla Foreign Currency Controls
Commitments and Contingencies, Disclosure
Litigation amount as per judgment	$ 24.6
Payment of contract amount in foreign currency	7.5
Payment of contract amount in domestic currency	$ 3.2
Court of Ouargla Foreign Currency Controls | Maximum
Commitments and Contingencies, Disclosure
Potential judgment in excess of accrual			$ 16.6
KMG Nabors Drilling Company Joint Venture [Member] | Atyrau Oblast Ecology Department
Commitments and Contingencies, Disclosure
Administrative fines			0.8
KMG Nabors Drilling Company Joint Venture [Member] | Atyrau Oblast Ecology Department | Minimum
Commitments and Contingencies, Disclosure
Environmental damages			$ 3.4
KMG Nabors Drilling Company Joint Venture [Member] | Atyrau Oblast Ecology Department | Forecast
Commitments and Contingencies, Disclosure
Additional penalties and fines		$ 4.0