Acquisitions and Divestitures - Allocation of Purchase Price: Pacific Drilling Merger (Details) $ / shares in Units, shares in Thousands, $ in Thousands		1 Months Ended	11 Months Ended	12 Months Ended
	Apr. 15, 2021 USD ($) $ / shares shares	Feb. 05, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Liabilities assumed:
Gain on bargain purchase		$ 0	$ 62,305	$ 5,005	$ 0
Pacific Drilling
Business Acquisition [Line Items]
Pacific Drilling membership interests outstanding (in shares) | shares	2,500
Business acquisition, membership interest exchange ratio	6.366
Preliminary purchase price allocation, membership interests outstanding (in shares) | shares	15,915
Pacific Drilling warrants outstanding (in shares) | shares	441
Business acquisition, warrants exchange ratio	1.553
Preliminary purchase price allocation, warrants outstanding (in shares) | shares	685
Number of shares received by acquiree (in shares) | shares	16,600
Fair value of Noble Ordinary Shares on April 15, 2021 (in USD per share) | $ / shares	$ 21.55
Total purchase price consideration	$ 357,662
Assets acquired:
Cash and cash equivalents	54,970
Accounts receivable	17,457
Taxes receivable	1,585
Prepaid expenses and other current assets	14,081
Total current assets	88,093
Property and equipment, net	346,167
Assets held for sale	30,063
Other assets	457
Total assets acquired	464,780
Liabilities assumed:
Accounts payable	18,603
Accrued payroll and related costs	16,128
Taxes payable	1,951
Other current liabilities	2,900
Total current liabilities	39,582
Deferred income taxes	798
Other liabilities	4,433
Total liabilities assumed	44,813
Net assets acquired	419,967
Gain on bargain purchase	62,305		$ 62,300
Purchase price consideration	$ 357,662