Debt - DNB Credit Facility and New DNB Credit Facility (Details) - New DNB Credit Facility matures December 2025 - Line of Credit	Dec. 22, 2022 USD ($)
Debt Instrument [Line Items]
Borrowings on credit facilities	$ 350,000,000
Debt covenant, liquidity amount (no less than)	200,000,000
Maersk Drilling
Debt Instrument [Line Items]
Debt covenant, liquidity amount (no less than)	$ 50,000,000
Debt covenant, leverage ratio (no greater than)	4.75
Debt covenant, equity ratio	35.00%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt, basis spread on variable rate	3.50%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Months 13 to 24 after the Utilization Date
Debt Instrument [Line Items]
Debt, basis spread on variable rate	4.10%
Debt quarterly margin	0.15%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Months 25 to 36 after the Utilization Date
Debt Instrument [Line Items]
Debt, basis spread on variable rate	5.10%
Debt quarterly margin	0.25%
Debt Instrument, Payment Period One
Debt Instrument [Line Items]
Debt, periodic payment	$ 2,500,000
Debt Instrument, Payment Period Two
Debt Instrument [Line Items]
Debt, periodic payment	7,500,000
Debt Instrument, Payment Period Three
Debt Instrument [Line Items]
Debt, periodic payment	$ 12,500,000

Debt Instrument, Covenant, Equity Ratio

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- Definition

Debt Instrument, Covenant, Leverage Ratio

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- Definition

Debt Instrument, Covenant, Liquidity Amount

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- Definition

Debt Instrument, Quarterly Margin

+ References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
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