Commitments and Contingencies - Litigation (Details) $ in Millions	1 Months Ended	12 Months Ended
	Mar. 31, 2011 USD ($)	Dec. 31, 2019 USD ($)
Commitments and Contingencies, Disclosure
Approximate multiplier of the amount at issue for fines and penalties		4
Court of Ouargla Algeria Foreign Currency Controls [Member]
Commitments and Contingencies, Disclosure
Litigation amount as per judgment	$ 23.7
Payment of contract amount in foreign currency	7.5
Payment of contract amount in domestic currency	$ 3.2
Court of Ouargla Algeria Foreign Currency Controls [Member] | Maximum
Commitments and Contingencies, Disclosure
Potential judgment in excess of accrual		$ 15.7
KMG Nabors Drilling Company Joint Venture [Member] | Atyrau Oblast Ecology Department
Commitments and Contingencies, Disclosure
Administrative fines		0.8
Additional penalties and fines		4.0
KMG Nabors Drilling Company Joint Venture [Member] | Atyrau Oblast Ecology Department | Minimum
Commitments and Contingencies, Disclosure
Environmental damages		$ 3.4