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Term of customer invoice payment.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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Amount of interest capitalized during the period.

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Fair value portion of notes payable.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Description of service or performance condition required to be met for earning right to award under share-based payment arrangement. Includes, but is not limited to, combination of market, performance or service condition.

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Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Basis Of Presentation And Significant Accounting Policies [Line Items]
Net gain (loss) on sale or retirement of assets	$ (300,000)		$ 1,630,000	$ 2,715,000
Capitalized interest			0	0
Allowance for doubtful accounts	5,000,000.0		5,000,000.0		$ 5,000,000.0
Foreign currency transaction gain (loss)	1,000,000.0	$ (200,000)	$ 1,800,000	$ (800,000)
TBGs
Basis Of Presentation And Significant Accounting Policies [Line Items]
Vesting period			4 years
Terms of TBGs vesting and settlement			TBGs granted under the 2016 Amended MIP vest annually, ratably over four years; however, accelerated vesting is provided for in the event of a QLE. Otherwise, the settlement of any vested TBGs occurs upon the seventh anniversary of the date as defined in the individual award letter.
PBGs
Basis Of Presentation And Significant Accounting Policies [Line Items]
Vesting period			7 years
9.25% First Lien Notes
Basis Of Presentation And Significant Accounting Policies [Line Items]
Fair value of notes outstanding	$ 336,600,000		$ 336,600,000
Minimum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Term of customer invoice payment			30 days
Maximum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Term of customer invoice payment			45 days
Drilling Equipment \| Minimum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Property, plant and equipment, useful lives			5 years
Drilling Equipment \| Maximum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Property, plant and equipment, useful lives			35 years
Office and Technology Equipment \| Minimum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Property, plant and equipment, useful lives			3 years
Office and Technology Equipment \| Maximum
Basis Of Presentation And Significant Accounting Policies [Line Items]
Property, plant and equipment, useful lives			7 years