Fresh start adjustment increase (decrease) fair value adjustment of blow out preventer finance lease assets.

No definition available.

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- Definition

Fresh start adjustment increase (decrease) fair value adjustment to drilling and other property and equipment net of accumulated depreciation.

+ References

No definition available.

+ Details

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

+ References

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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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

No definition available.

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Segments and Geographic Area Analysis - Long-Lived Tangible Assets by Country (Parenthetical) (Detail) - USD ($) $ in Thousands	4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 23, 2021	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Fair value adjustment to drilling and other property and equipment net of accumulated depreciation	$ (2,712,100)
Fair value adjustment of BOP finance lease assets	(8,400)
Impairment of assets	$ 197,027	$ 132,449		$ 842,016
Other Countries [Member] \| Drilling and Other Property and Equipment , Net of Accumulated Depreciation [Member] \| Maximum [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk percentage			5.00%