Supplemental Financial Information - Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Collateral deposits		$ 18,961	$ 17,480
Prepaid taxes		17,339	16,163
Deferred contract costs		6,776	7,267
Prepaid rig costs		4,511	4,048
Rig spare parts and supplies		3,611	3,716
Prepaid insurance		2,180	3,436
Current contract assets	[1]	2,169	1,835
Prepaid legal retainers		730	746
Other		5,998	6,749
Change in prepaid expenses and other current assets		$ 62,275	$ 61,440

[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.