Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands		Dec. 31, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred contract costs		$ 20,552	$ 14,373
Collateral deposits		11,857	0
Prepaid taxes		10,868	16,922
Rig spare parts and supplies		4,694	5,091
Prepaid rig costs		3,668	4,001
Prepaid insurance		3,437	3,022
Current contract assets	[1]	2,575	141
Deferred survey costs		1,418	838
Software maintenance agreements and subscriptions		1,408	1,212
Other		2,935	3,095
Change in prepaid expenses and other current assets		$ 63,412	$ 48,695

[1] Contract assets and contract liabilities may reflect balances that 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 asset and liability balances are included in “Other assets” and “Other liabilities,” respectively, in our Consolidated Balance Sheets as of December 31, 2023 and 2022.