CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	1 Months Ended	2 Months Ended	3 Months Ended
	Feb. 05, 2021	Mar. 31, 2021	Mar. 31, 2020
Operating revenues
Operating revenues	$ 77,481,000	$ 92,433,000	$ 281,311,000
Operating costs and expenses
Depreciation and amortization	20,622,000	14,244,000	103,681,000
General and administrative	5,727,000	9,548,000	17,839,000
Loss on impairment	0	0	1,119,517,000
Total operating costs and expenses	76,051,000	110,817,000	1,413,866,000
Operating income (loss)	1,430,000	(18,384,000)	(1,132,555,000)
Other income (expense)
Interest expense, net of amounts capitalized	(229,000)	(6,895,000)	(70,880,000)
Interest income and other, net	399,000	8,000	(2,282,000)
Reorganization items, net	252,051,000	0	0
Income (loss) before income taxes	253,651,000	(25,271,000)	(1,205,717,000)
Income tax benefit (provision)	(3,423,000)	7,047,000	143,040,000
Net income (loss)	$ 250,228,000	$ (18,224,000)	$ (1,062,677,000)
Basic:
Net income (loss) (in usd per share)	$ 1.00	$ (0.36)	$ (4.25)
Diluted:
Net income (loss) (in usd per share)	$ 0.98	$ (0.36)	$ (4.25)
Noble Finance Company
Operating revenues
Operating revenues	$ 77,481,000	$ 92,433,000	$ 281,311,000
Operating costs and expenses
Depreciation and amortization	20,631,000	14,243,000	103,109,000
General and administrative	5,729,000	4,611,000	6,751,000
Loss on impairment	0	0	1,119,517,000
Total operating costs and expenses	75,800,000	105,259,000	1,401,902,000
Operating income (loss)	1,681,000	(12,826,000)	(1,120,591,000)
Other income (expense)
Interest expense, net of amounts capitalized	(229,000)	(6,895,000)	(70,880,000)
Interest income and other, net	400,000	8,000	(2,294,000)
Reorganization items, net	195,395,000	0	0
Income (loss) before income taxes	197,247,000	(19,713,000)	(1,193,765,000)
Income tax benefit (provision)	(3,422,000)	7,047,000	143,040,000
Net income (loss)	193,825,000	(12,666,000)	(1,050,725,000)
Contract drilling services
Operating revenues
Operating revenues	74,051,000	84,629,000	267,364,000
Operating costs and expenses
Cost of services	46,965,000	79,981,000	161,145,000
Contract drilling services | Noble Finance Company
Operating revenues
Operating revenues	74,051,000	84,629,000	267,364,000
Operating costs and expenses
Cost of services	46,703,000	79,361,000	160,841,000
Reimbursables and other
Operating revenues
Operating revenues	3,430,000	7,804,000	13,947,000
Operating costs and expenses
Cost of services	2,737,000	7,044,000	11,684,000
Reimbursables and other | Noble Finance Company
Operating revenues
Operating revenues	3,430,000	7,804,000	13,947,000
Operating costs and expenses
Cost of services	$ 2,737,000	$ 7,044,000	$ 11,684,000