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REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Nov. 12, 2021 USD ($) rig	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)
Revenue From Contract With Customer [Line Items]
Drilling services		$ 766,682	$ 465,370	$ 1,483,852	$ 872,904
Capitalized fulfillment costs		$ 12,600		$ 12,600		$ 6,300
YPF S.A.
Revenue From Contract With Customer [Line Items]
Litigation settlement, amount awarded from other party	$ 11,000
Drilling service contract, number of rigs | rig	3
Revenue recognized	$ 5,400
Drilling services					$ 16,400

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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