Revenue and Customers - Estimated Future Amortization (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Contract With Customer, Liability, Noncurrent, Expected Amortization [Abstract]
Noncurrent contract liabilities	$ 916	$ 8,580
Maersk Drilling
Contract With Customer, Liability, Noncurrent, Expected Amortization [Abstract]
2025	916
Noncurrent contract liabilities	916	8,580
Unfavorable (Favorable) Customer Contracts, Net, Future Amortization [Abstract]
2025	916
Total	916
Maersk Drilling \| Favorable contracts
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2025	0
Favorable contracts	$ 0	$ (214)

Contract With Customer, Liability, Noncurrent, Expected Amortization

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- Definition

Contract With Customer, Liability, Noncurrent, Expected Amortization, Year One

+ References

No definition available.

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- Definition

Unfavorable (Favorable) Customer Contracts, Net

+ References

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Unfavorable (Favorable) Customer Contracts, Net, Future Amortization

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Unfavorable (Favorable) Customer Contracts, Net, Future Amortization, Year One

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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