Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Collateral deposit		$ 13,735	$ 11,857
Deferred contract costs		10,571	20,552
Prepaid taxes		9,951	10,868
Rig spare parts and supplies		8,527	4,694
Prepaid Insurance		5,215	3,437
Current contract assets	[1]	3,638	2,575
Software maintenance agreements and subscriptions		2,237	1,408
Prepaid rig costs		1,463	3,668
Deferred survey costs		1,401	1,418
Other		4,862	2,935
Total		$ 61,600	$ 63,412

[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.