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BUSINESS SEGMENTS AND GEOGRAPHIC INFORMATION - Reconciliation of Segment Assets to Consolidated Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Total assets	$ 5,781,898	$ 4,381,956
Operating Segments
Segment Reporting Information [Line Items]
Total assets	4,142,239	3,954,955
Investments and corporate operations
Segment Reporting Information [Line Items]
Total assets	1,639,659	427,001
North America Solutions | Operating Segments
Segment Reporting Information [Line Items]
Total assets	3,225,410	3,320,203
International Solutions | Operating Segments
Segment Reporting Information [Line Items]
Total assets	685,833	407,143
Offshore Gulf of Mexico | Operating Segments
Segment Reporting Information [Line Items]
Total assets	73,119	73,319
Other | Operating Segments
Segment Reporting Information [Line Items]
Total assets	$ 157,877	$ 154,290

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Amount of asset recognized for present right to economic benefit.

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