Business Segment and Significant Customer Information - Summary of Revenue by Country (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Entity Wide Revenue Major Customer [Line Items]
Revenues		$ 58,331	$ 20,166
Egypt | Drilling Services
Entity Wide Revenue Major Customer [Line Items]
Revenues		17,121
India | Drilling Services
Entity Wide Revenue Major Customer [Line Items]
Revenues		13,289	8,855
UAE | Managed Services
Entity Wide Revenue Major Customer [Line Items]
Revenues		8,188
Qatar | Drilling Services
Entity Wide Revenue Major Customer [Line Items]
Revenues		7,385	7,197
Indonesia | Drilling Services
Entity Wide Revenue Major Customer [Line Items]
Revenues			3,970
Other countries | Drilling Services and Managed Services
Entity Wide Revenue Major Customer [Line Items]
Revenues	[1]	$ 12,348	$ 144

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