Revenues - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Accounts receivable balances	$ 1,010,034	$ 565,520
Revenue recognized	135,000
Contract liability, current	28,900
Revenue, remaining performance obligation, amount	$ 760,000
Revenue, remaining performance obligation, percentage	24.00%
Accrued Liabilities
Disaggregation Of Revenue [Line Items]
Contract liability	$ 23,700	148,000
Contract Drilling
Disaggregation Of Revenue [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	Sep. 30, 2024
ASC Topic 606 Revenue from Contracts with Customers
Disaggregation Of Revenue [Line Items]
Accounts receivable balances	$ 957,000	$ 561,000
Contract liability, current	16,600
Contract liability, noncurrent	$ 7,100
Minimum
Disaggregation Of Revenue [Line Items]
Accounts receivable payment terms	30 days
Maximum
Disaggregation Of Revenue [Line Items]
Accounts receivable payment terms	60 days