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v3.22.1

Basis of Preparation and Accounting Policies (Details) |  | 12 Months Ended
--- | --- | ---
Dec. 14, 2021 $ / shares | Dec. 31, 2021 segment $ / shares
Property, Plant and Equipment [Line Items] |  |
Stock conversion ratio | 0.5 | 0.50
Ordinary shares, par value (in dollars per share) | $ / shares | $ 0.05 | $ 0.10
New of reportable segments | segment |  | 2
Jack-Up Rigs |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life |  | 30 years
Jack-Up Rig Equipment And Machinery | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life |  | 3 years
Jack-Up Rig Equipment And Machinery | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful life |  | 20 years

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