CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Noble Finance Company	Common Stock	Common Stock Noble Finance Company	Additional Paid-in Capital	Additional Paid-in Capital Noble Finance Company	Retained Earnings (Accumulated Deficit)	Retained Earnings (Accumulated Deficit) Noble Finance Company	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Noble Finance Company
Beginning balance (in shares) at Dec. 31, 2019			249,200	261,246
Beginning Balance at Dec. 31, 2019	$ 3,658,972	$ 3,757,980	$ 2,492	$ 26,125	$ 807,093	$ 757,545	$ 2,907,776	$ 3,032,699	$ (58,389)	$ (58,389)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Amortization of share-based compensation	2,235				2,235
Issuance of share-based compensation shares (in shares)			1,752
Issuance of share-based compensation shares	0		$ 17		(17)
Shares withheld for taxes on equity transactions	(430)				(430)
Net income (loss)	(1,062,677)	(1,050,725)					(1,062,677)	(1,050,725)
Other comprehensive income (loss), net	(1,568)	(1,568)							(1,568)	(1,568)
Distributions to parent company, net		(12,644)						(12,644)
Capital contribution by parent - share-based compensation		3,245				3,245
Ending balance (in shares) at Mar. 31, 2020			250,952	261,246
Ending Balance at Mar. 31, 2020	$ 2,596,532	$ 2,696,288	$ 2,509	$ 26,125	808,881	760,790	1,845,099	1,969,330	(59,957)	(59,957)
Beginning balance (in shares) at Dec. 31, 2020	251,084	261,246	251,084	261,246
Beginning Balance at Dec. 31, 2020	$ (311,388)	$ (213,392)	$ 2,511	$ 26,125	814,796	766,714	(1,070,683)	(948,219)	(58,012)	(58,012)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Amortization of share-based compensation	710				710
Issuance of share-based compensation shares (in shares)			43
Shares withheld for taxes on equity transactions	(1)				(1)
Net income (loss)	250,228	193,825					250,228	193,825
Other comprehensive income (loss), net	108	108							108	108
Cancellation of Predecessor equity (in shares)			(251,127)
Cancellation of Predecessor equity	60,343	1,061,402	$ (2,511)		(815,505)	222,601	820,455	780,897	57,904	57,904
Shares issued upon emergence (in shares)			50,000
Issuance of Successor common stock and warrants	1,018,768		$ 1		1,018,767
Distributions to parent company, net		(26,503)						(26,503)
Capital contribution by parent - share-based compensation		710				710
Ending balance (in shares) at Feb. 05, 2021			50,000	261,246
Ending Balance at Feb. 05, 2021	1,018,768	1,016,150	$ 1	$ 26,125	1,018,767	990,025	0	0	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Amortization of share-based compensation	2,018				2,018
Net income (loss)	(18,224)	(12,666)					(18,224)	(12,666)
Other comprehensive income (loss), net	$ 0	0							0	0
Exchange of common stock for penny warrants (in shares)			(6,463)
Distributions to parent company, net		(2,759)			(2,759)
Capital contribution by parent - share-based compensation		$ 2,018				2,018
Ending balance (in shares) at Mar. 31, 2021	43,537	261,246	43,537	261,246
Ending Balance at Mar. 31, 2021	$ 1,002,562	$ 1,002,743	$ 1	$ 26,125	$ 1,020,785	$ 989,284	$ (18,224)	$ (12,666)	$ 0	$ 0