COMMITMENTS AND CONTINGENCIES - Narrative (Details) $ in Thousands	3 Months Ended
	Dec. 31, 2023 USD ($) extension rig	Sep. 30, 2023 USD ($)
Other Commitments [Line Items]
Leases renewed | extension	1
Operating lease right-of-use assets	$ 62,254	$ 50,400
Purchase commitments for equipment, parts and supplies	$ 121,700
Tulsa Industrial Facility
Other Commitments [Line Items]
Number of renewal options | rig	2
Renewal option term	5 years
Land and Building
Other Commitments [Line Items]
Operating lease, liability	$ 18,100
Operating lease right-of-use assets	$ 18,100