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v3.22.4

Equity Method Investment in ARO Equity Method Investment In ARO - Summarized Financial Data (Details) - USD ($) $ in Millions | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
ASSETS |  |  |  |  |
Cash and cash equivalents | $ 607.6 | $ 608.7 | $ 724.1 | $ 608.7 |
Other | 90.5 | 117.8 | 148.6 | 117.8 |
TOTAL ASSETS | 2,595.6 | 2,603.1 | 2,860.3 | 2,603.1 |
Liabilities [Abstract] |  |  |  |  |
Liabilities, Current | 390.6 | 422.0 | 504.4 | 422.0 |
Investment Owned, Balance [Abstract] |  |  |  |  |
EQUITY IN EARNINGS (LOSSES) OF ARO | 3.1 | 6.1 | 24.5 |  | $ (7.8)
ARO |  |  |  |  |
Related Party Transactions [Abstract] |  |  |  |  |
Lease revenue | 21.7 | 35.4 | 56.7 |  | 52.2
Secondment revenue | 1.1 | 1.5 | 2.0 |  | 21.6
Total revenue from ARO (1) | 22.8 | 36.9 | 58.7 |  | 73.8
ARO |  |  |  |  |
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] |  |  |  |  |
Equity Method Investment Summarized Fin Information Revenue |  |  | 459.5 | 470.6 | 549.4
Equity Method Investment Summarized Financial Information Contract Drilling |  |  | 341.8 | 362.3 | 388.2
Equity Method Investment Summarized Financial Information Depreciation |  |  | 63.4 | 65.2 | 54.8
Equity Method Investment Summarized Financial Information General And Administrative Expense |  |  | 18.7 | 17.8 | 24.2
Equity Method Investment Summarized Financial Information Operating Income |  |  | 35.6 | 25.3 | 82.2
Equity Method Investment Summarized Financial Information Other Expense, Net |  |  | 11.1 | 13.4 | 26.7
Equity Method Investment Summarized Financial Information Provision For Income Taxes |  |  | 3.8 | 7.9 | 14.2
Equity Method Investment Summarized Fin Information Net Income Loss |  |  | 20.7 | 4.0 | 41.3
ASSETS |  |  |  |  |
Cash and cash equivalents |  | 270.8 | 176.2 | 270.8 |
Other |  | 135.0 | 140.6 | 135.0 |
Assets, Noncurrent |  | 775.8 | 818.1 | 775.8 |
TOTAL ASSETS |  | 1,181.6 | 1,134.9 | 1,181.6 |
Liabilities [Abstract] |  |  |  |  |
Liabilities, Current |  | 79.9 | 86.3 | 79.9 |
Liabilities, Noncurrent |  | 956.7 | 884.6 | 956.7 |
Liabilities |  | 1,036.6 | 970.9 | 1,036.6 |
Maximum exposure to loss |  | 299.0 | 317.9 | 299.0 |
Related Party Transactions [Abstract] |  |  |  |  |
Equity Method Investment, Maximum Exposure, Assets |  | 348.1 | 377.8 | 348.1 |
Equity Method Investment, Maximum Exposure, Liabilities |  | 49.1 | 59.9 | $ 49.1 |
ARO |  |  |  |  |
Investment Owned, Balance [Abstract] |  |  |  |  |
50% interest in ARO net income (loss) | 6.0 | (4.0) | 10.4 |  | 20.7
Amortization of basis differences | (2.9) | 10.1 | 14.1 |  | (28.5)
EQUITY IN EARNINGS (LOSSES) OF ARO | $ 3.1 | $ 6.1 | $ 24.5 |  | $ (7.8)

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