Impairments and Other Charges (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($)
Components of impairments and other charges
Rig Technologies	$ 418
Severance and transaction related costs	6,228
Other assets	1,325
Total	66,731
Canada Drilling
Components of impairments and other charges
Drilling	58,545
International Drilling
Components of impairments and other charges
Drilling	$ 215

No definition available.

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- Definition

The adjustment to expense when the entity obtains information that raises substantial doubt about the economic or operational viability of rig technologies.

+ References

No definition available.

+ Details

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Represents the impairments and other charges incurred during the reporting period.

+ References

No definition available.

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The amount of severance and transaction-related costs.

+ References

No definition available.

+ Details

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- Definition

The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482099/360-10-50-2

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- Definition

The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482099/360-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 205
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483499/205-20-50-1

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