Revenues - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Accounts receivable balances	$ 473,153		$ 473,153		$ 356,083
Total revenues	622,238	$ 291,774	1,131,613	$ 532,703
Contract Drilling
Disaggregation Of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 440,000		$ 440,000
Revenue Remaining Performance Obligation Percentage	24.00%		24.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	Jun. 30, 2023		Jun. 30, 2023
ASC Topic 606 Revenue from Contracts with Customers
Disaggregation Of Revenue [Line Items]
Accounts receivable balances	$ 466,000		$ 466,000		352,000
Revenue recognized			59,700
ASC Topic 606 Revenue from Contracts with Customers | Accounts Payable
Disaggregation Of Revenue [Line Items]
Total contract liability	$ 3,400		3,400		$ 60,300
ASC Topic 606 Revenue from Contracts with Customers | Contract Drilling
Disaggregation Of Revenue [Line Items]
Amortized revenue			$ 0	$ 0
Maximum
Disaggregation Of Revenue [Line Items]
Accounts receivable payment terms			60 days
Minimum
Disaggregation Of Revenue [Line Items]
Accounts receivable payment terms			30 days