Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Apr. 23, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Collateral deposits	$ 17,480
Prepaid taxes	16,163		$ 16,112
Deferred contract costs	7,267		19,808
Prepaid rig costs	4,048		2,317
Rig spare parts and supplies	3,716		12,606
Prepaid insurance	3,436		2,446
Current contract assets	1,835		2,870
Prepaid legal retainers	746		2,408
Other	6,749		3,708
Change in prepaid expenses and other current assets	$ 61,440	$ 58,655	$ 62,275

Non-capitalized spare parts and supplies for use on drilling rigs.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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Sum of the carrying amounts as of the balance sheet date of deferred costs capitalized at the end of the reporting period that are expected to be charged against earnings within one year or the normal operating cycle, if longer.

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Amount of current assets classified as other.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

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Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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The amount of assets, typically cash, provided to suppliers of goods in advance of receipt and acceptance, or services (such as research facilities, lawyers or consultants), which is held by such parties until the entity either effects full payment (including applying the retainer) or obtains release from liability.

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