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GOODWILL AND INTANGIBLE ASSETS - Summary of Changes in Goodwill (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2025 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 45,653
Acquisition of KCA Deutag	298,164
Measurement period adjustments	(4,000)
Goodwill impairment charge	(173,258)
Ending balance	166,559
North America Solutions
Goodwill [Roll Forward]
Beginning balance	45,653
Acquisition of KCA Deutag	0
Measurement period adjustments	0
Goodwill impairment charge	0
Ending balance	45,653
International Solutions
Goodwill [Roll Forward]
Beginning balance	0
Acquisition of KCA Deutag	131,351
Measurement period adjustments	(3,000)
Goodwill impairment charge	(128,351)
Ending balance	0
Offshore Solutions
Goodwill [Roll Forward]
Beginning balance	0
Acquisition of KCA Deutag	121,906
Measurement period adjustments	(1,000)
Goodwill impairment charge	0
Ending balance	120,906
Other
Goodwill [Roll Forward]
Beginning balance	0
Acquisition of KCA Deutag	44,907
Measurement period adjustments	0
Goodwill impairment charge	(44,907)
Ending balance	$ 0

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