Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income (loss)	$ (99,481)	$ (44,235)	$ (480,948)	$ 425,297
Other comprehensive income (loss)
Foreign currency translation adjustments	469	(543)	749	263
Foreign currency forward contracts	(65)	463	674	(605)
Amortization of deferred pension plan amounts (net of tax provision of $165 and $408 for the three months ended September 30, 2017 and 2016, respectively, and $493 and $1,227 for the nine months ended September 30, 2017 and 2016, respectively)	389	781	1,156	2,348
Other comprehensive income, net	793	701	2,579	2,006
Net comprehensive (income) loss attributable to noncontrolling interests	2,689	(10,846)	(10,888)	(52,027)
Comprehensive income (loss) attributable to the company	(95,999)	(54,380)	(489,257)	375,276
Noble Corp [Member]
Net income (loss)	(92,672)	(40,030)	(454,615)	449,020
Other comprehensive income (loss)
Foreign currency translation adjustments	469	(543)	749	263
Foreign currency forward contracts	(65)	463	674	(605)
Amortization of deferred pension plan amounts (net of tax provision of $165 and $408 for the three months ended September 30, 2017 and 2016, respectively, and $493 and $1,227 for the nine months ended September 30, 2017 and 2016, respectively)	389	781	1,156	2,348
Other comprehensive income, net	793	701	2,579	2,006
Net comprehensive (income) loss attributable to noncontrolling interests	2,689	(10,846)	(10,888)	(52,027)
Comprehensive income (loss) attributable to the company	$ (89,190)	$ (50,175)	$ (462,924)	$ 398,999