Income (Loss) Per Share - Computation of Basic and Diluted Earnings Per Share for Noble-UK (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Feb. 05, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2021	Jun. 30, 2022
Basic
Net income	$ 250,228	$ 37,057	$ 20,435	$ 2,211	$ 401
Diluted
Net income	$ 250,228	$ 37,057	$ 20,435	$ 2,211	$ 401
Denominator:
Weighted average shares outstanding - basic (in shares)	251,115	69,789	64,048	58,816	68,722
Dilutive effect of share-based awards (in shares)	5,456	3,378	3,114	3,114	3,378
Dilutive effect of warrants (in shares)	0	9,535	884	169	9,185
Weighted average shares outstanding - diluted (in shares)	256,571	82,702	68,046	62,099	81,285
Basic:
Net income (in usd per share)	$ 1.00	$ 0.53	$ 0.32	$ 0.04	$ 0.01
Diluted:
Net income (in usd per share)	$ 0.98	$ 0.45	$ 0.30	$ 0.04	$ 0