Revenues - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation Of Revenue [Line Items]
Accounts receivable balances	$ 565,520,000	$ 356,083,000
revenue	59,700,000
Increased contract liabilities due to customer payments	87,500,000
Revenue, Remaining Performance Obligation, Amount	$ 830,000,000
Revenue, Remaining Performance Obligation, Percentage	32.00%
Total revenues	$ 2,647,592,000	1,357,081,000	$ 1,124,249,000
Accrued Liabilities
Disaggregation Of Revenue [Line Items]
Total contract liability	$ 147,800,000
Contract Drilling
Disaggregation Of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	Dec. 31, 2023
ASC Topic 606 Revenue from Contracts with Customers
Disaggregation Of Revenue [Line Items]
Accounts receivable balances	$ 561,000,000	352,000,000
Total contract liability	110,200,000
Contract with Customer, Liability, Noncurrent	37,600,000
ASC Topic 606 Revenue from Contracts with Customers | Accrued Liabilities
Disaggregation Of Revenue [Line Items]
Total contract liability		60,300,000
ASC Topic 606 Revenue from Contracts with Customers | Contract Drilling
Disaggregation Of Revenue [Line Items]
Amortized revenue	$ 1,400,000	$ 0
Minimum
Disaggregation Of Revenue [Line Items]
Accounts receivable payment terms	30 days
Maximum
Disaggregation Of Revenue [Line Items]
Accounts receivable payment terms	60 days