Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating revenues
Contract drilling services	$ 354,659	$ 591,367
Reimbursables	8,304	20,606
Other	13	0
Total operating revenues	362,976	611,973
Operating costs and expenses
Contract drilling services	160,385	251,248
Reimbursables	5,146	16,006
Depreciation and amortization	135,718	149,719
General and administrative	15,880	19,540
Total operating costs and expenses	317,129	436,513
Operating income	45,847	175,460
Other income (expense)
Interest expense, net of amount capitalized	(73,447)	(57,100)
Gain on extinguishment of debt, net	11,066
Interest income (expense) and other, net	1,233	(730)
Income (loss) before income taxes	(26,367)	117,630
Income tax benefit (provision)	(257,407)	6,503
Net income (loss)	(283,774)	124,133
Net income attributable to noncontrolling interests	(17,920)	(18,648)
Net income (loss) attributable to the company	$ (301,694)	$ 105,485
Per share data:
Basic: (usd per share)	$ (1.24)	$ 0.42
Diluted: (usd per share)	$ (1.24)	$ 0.42
Noble Corp [Member]
Operating revenues
Contract drilling services	$ 354,659	$ 591,367
Reimbursables	8,304	20,606
Other	13	600
Total operating revenues	362,976	612,573
Operating costs and expenses
Contract drilling services	160,016	249,290
Reimbursables	5,146	16,006
Depreciation and amortization	135,718	149,673
General and administrative	9,064	10,605
Total operating costs and expenses	309,944	425,574
Operating income	53,032	186,999
Other income (expense)
Interest expense, net of amount capitalized	(73,447)	(57,100)
Interest income (expense) and other, net	1,119	(733)
Income (loss) before income taxes	(19,296)	129,166
Income tax benefit (provision)	(257,373)	6,503
Net income (loss)	(276,669)	135,669
Net income attributable to noncontrolling interests	(17,920)	(18,648)
Net income (loss) attributable to the company	$ (294,589)	$ 117,021