Commitments and Contingencies - Litigation (Details) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2011 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Court of Ouargla Foreign Currency Controls
Commitments and Contingencies, Disclosure
Litigation amount as per judgment	$ 23.6
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 Foreign Currency Controls | Maximum
Commitments and Contingencies, Disclosure
Potential judgment in excess of accrual		$ 15.6
United States District court proxy statement violation
Commitments and Contingencies, Disclosure
Period to seek a new trial or file an appeal by plaintiff		30 days
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