Debt Instrument, Covenant, Minimum Value To Loan Covenant

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- Definition

Debt Instrument, Deferral Of Delivery Percentage

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- Definition

Debt Instrument, Delivery Deferral Cost Percentage

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- Definition

Debt Instrument, Face Amount Per Rig

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- Definition

Debt Instrument, Maturity Date, Period Extended

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- Definition

Delivery Financing Per Rig

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- Definition

Interest Paid, Year One

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- Definition

Interest Paid, Year Two

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- Definition

Number Of Jack-Up Rigs Completed

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- Definition

Number Of Jack-Up Rigs, Delivery Financing

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- Definition

Number Of Jack-Up Rigs Under Construction

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- Definition

Number Of Newbuild Jack-Up Rigs For Sale Per Letter Of Intent Agreement

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- Definition

Number Of Premium Jack Up Rigs Agreed To Acquire

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- Definition

Number of Rigs Deliveries Deferred

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- Definition

Number of Rigs Deliveries Deferred, Transocean Transaction

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- Definition

Number Of Rigs To Be Purchased

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- Definition

Potential Proceeds From Disposal Of Property, Plant, And Equipment

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- Definition

Potential Purchase Price Per Rig, Property, Plant, And Equipment

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- Definition

Potential Purchase Price, Property, Plant, And Equipment

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- Definition

Proceeds From Disposal Of Property, Plant, And Equipment To Be Used To Settle Commitments

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- Definition

Term Of Guaranteed Maturity

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- Definition

Amount of assets pledged to secure a debt instrument.

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- Definition

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.

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- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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Debt - Keppel Newbuilding Financing (Details) $ in Millions			1 Months Ended					3 Months Ended		6 Months Ended	12 Months Ended
Debt - Keppel Newbuilding Financing (Details) $ in Millions	Jun. 27, 2022 rig	Jan. 30, 2021	Oct. 31, 2022 USD ($) rig	Jun. 30, 2022 USD ($) rig	Jan. 31, 2021 USD ($) rig	Jun. 30, 2020 rig	May 31, 2018 rig	Dec. 31, 2022 USD ($)	Jun. 30, 2022 USD ($) rig	Dec. 31, 2022 USD ($) rig	Dec. 31, 2022 USD ($) rig	Sep. 30, 2025 USD ($) rig	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2022 USD ($) rig	Dec. 31, 2021 USD ($) rig	May 30, 2018 rig	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Delivery financing per rig																		$ 87.0
Book value of jackup rigs pledged as collateral for long-term debt facilities								$ 2,396.2		$ 2,396.2	$ 2,396.2					$ 2,730.8
Number of rig deliveries deferred \| rig										2	2
Number of newbuild Jack-up rigs \| rig	3								3
Keppel rigs delivered
Debt Instrument [Line Items]
Delivery financing per rig								90.9		$ 90.9	$ 90.9
Keppel Delivery Financing
Debt Instrument [Line Items]
Number of rigs, delivery financing \| rig											2
Loan maturity date, period extended		1 year
Percentage covered for aggregate outstanding facility, amount																	130.00%
Book value of jackup rigs pledged as collateral for long-term debt facilities								484.5		484.5	$ 484.5
Long-term debt								259.2		$ 259.2	$ 259.2					$ 259.2
Keppel rigs undelivered
Debt Instrument [Line Items]
Number of rig deliveries deferred \| rig					5
Number of newbuild Jack-up rigs \| rig			3	3
Rigs to be purchased \| rig															5
Delivery deferral cost %			7.50%
Keppel rigs undelivered \| Forecast
Debt Instrument [Line Items]
Rigs to be purchased \| rig												2
Debt instrument, face amount per rig												$ 130.0
Debt term												4 years
Delivery deferral % payable													50.00%	50.00%
Keppel rigs undelivered \| Newbuildings
Debt Instrument [Line Items]
Potential sale price			$ 320.0	$ 320.0					$ 320.0
Potential purchase price, PPE															$ 624.0
Potential purchase price per rig, PPE			32.6
Proceeds from disposal of PPE to be used to settle commitments			$ 320.0
Payments to acquire PPE								$ 10.9
Keppel rigs undelivered \| Newbuildings \| Forecast
Debt Instrument [Line Items]
Potential purchase price per rig, PPE												$ 147.4
Keppel rigs undelivered \| Period 1
Debt Instrument [Line Items]
Interim payment 2021					$ 6.0
Keppel rigs undelivered \| Period 2
Debt Instrument [Line Items]
Interim payment 2022					$ 12.0
Keppel Delivery Financing
Debt Instrument [Line Items]
Number of premium jack up rigs agreed to acquire \| rig							5
Number of rigs completed \| rig							3
Number of rigs under construction \| rig																2	2
Number of rigs deliveries deferred, transocean transaction \| rig						3	3
Term of guaranteed maturity							60 months
Number of rig deliveries deferred \| rig						2
Keppel Delivery Financing \| Keppel rigs undelivered
Debt Instrument [Line Items]
Number of rig deliveries deferred \| rig						5