Business Segment and Significant Customer Information - Summary of Revenue by Country (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Entity Wide Revenue Major Customer [Line Items]
Revenues		$ 73,238	$ 35,601	$ 131,569	$ 55,767
Egypt | Drilling Services
Entity Wide Revenue Major Customer [Line Items]
Revenues		9,738		26,859
India | Drilling Services and Managed Services
Entity Wide Revenue Major Customer [Line Items]
Revenues		13,230	9,297	26,518	18,152
UAE | Managed Services
Entity Wide Revenue Major Customer [Line Items]
Revenues		19,778		27,966
Qatar | Drilling Services
Entity Wide Revenue Major Customer [Line Items]
Revenues			7,697	14,319	14,894
Montenegro | Drilling Services
Entity Wide Revenue Major Customer [Line Items]
Revenues			16,253		16,306
Other countries | Drilling Services and Managed Services
Entity Wide Revenue Major Customer [Line Items]
Revenues	[1]	$ 30,492	$ 2,354	$ 35,907	$ 6,415

[1] “Other countries” represent countries in which we operate that individually had operating revenues representing less than 10% of total revenues earned.