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Chapter 11 Emergence - Additional Information (Details)
$ / shares in Units, shares in Millions, $ in Millions
Feb. 05, 2021
USD ($)
member
$ / shares
shares
Dec. 31, 2023
shares
Sep. 30, 2022
$ / shares
Feb. 18, 2021
shares
Debt Instrument [Line Items]        
Plan of reorganization, number of the Successor's board of directors members | member 5      
Plan of reorganization, Management Incentive Plan, number of shares authorized and reserved       7.7
2021 LTIP        
Debt Instrument [Line Items]        
Total number of shares issuable under incentive plan (in shares)   1.3   7.7
11.000% Senior Notes due February 2028 | Secured Debt        
Debt Instrument [Line Items]        
Long-term debt | $ $ 216.0      
Exit Credit Agreement | Line of Credit | Revolving Credit Facility        
Debt Instrument [Line Items]        
Debtor-in-possession financing, amount arranged | $ 675.0      
Exit Credit Agreement | Line of Credit | Letter of Credit        
Debt Instrument [Line Items]        
Debtor-in-possession financing, amount arranged | $ $ 67.5      
Tranche 1 Warrants        
Debt Instrument [Line Items]        
Exercise price of warrants (usd per share) | $ / shares     $ 19.27  
Tranche 2 Warrants        
Debt Instrument [Line Items]        
Exercise price of warrants (usd per share) | $ / shares     23.13  
Tranche 3 Warrants        
Debt Instrument [Line Items]        
Exercise price of warrants (usd per share) | $ / shares     $ 124.40  
Penny Warrants        
Debt Instrument [Line Items]        
Exercise price of warrants (usd per share) | $ / shares $ 0.01      
Number of securities called by warrants (in shares) 6.5      
Holders of Guaranteed Notes | Noble Cayman        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares transferred 31.7      
Holders of Legacy Notes | Tranche 1 Warrants        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares transferred 8.3      
Plan of reorganization, warrants term 7 years      
Exercise price of warrants (usd per share) | $ / shares $ 19.27      
Holders of Legacy Notes | Tranche 2 Warrants        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares transferred 8.3      
Plan of reorganization, warrants term 7 years      
Exercise price of warrants (usd per share) | $ / shares $ 23.13      
Holders of Legacy Notes | Noble Cayman        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares transferred 2.1      
Participants in the Rights Offering | Noble Cayman        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares issued 7.7      
Plan of reorganization, shares issued, subscription price | $ $ 200.0      
Backstop Parties as Holdback Securities | Noble Cayman        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares issued 5.6      
Backstop Parties, Unsubscribed Securities | Noble Cayman        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares issued 1.7      
Backstop Parties, Backstop Premiums Payment | Noble Cayman        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares issued 1.2      
Holders of Legacy Noble's Ordinary Shares | Tranche 3 Warrants        
Debt Instrument [Line Items]        
Plan of reorganization, warrants term 5 years      
Exercise price of warrants (usd per share) | $ / shares $ 124.40      
Plan of reorganization, number of shares issued 2.8      
Backstop Parties | Penny Warrants        
Debt Instrument [Line Items]        
Exercise price of warrants (usd per share) | $ / shares $ 0.01      
Number of securities called by warrants (in shares) 6.5      
Backstop Parties | Noble Cayman        
Debt Instrument [Line Items]        
Plan of reorganization, number of shares exchanged (in shares) 6.5