Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid taxes		$ 21,756	$ 16,922
Deferred contract costs		17,235	14,373
Prepaid rig costs		4,337	4,001
Rig spare parts and supplies		3,890	5,091
Prepaid insurance		2,493	3,022
Software maintenance agreements and subscriptions		1,919	1,212
Deferred survey costs		1,104	838
Current contract assets	[1]	411	141
Other		7,488	3,095
Change in prepaid expenses and other current assets		$ 60,633	$ 48,695

[1] Contract assets and contract liabilities may reflect balances which have been netted together on a contract basis. Net current contract asset and liability balances are included in “Prepaid expenses and other current assets” and “Accrued liabilities,” respectively, and net noncurrent contract liability balances are included in “Other liabilities” in our unaudited Condensed Consolidated Balance Sheets.