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BUSINESS SEGMENTS AND GEOGRAPHIC INFORMATION - Reconciliation of Segment Assets to Consolidated Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Assets	$ 5,034,128	$ 4,829,621
Operating Segments
Segment Reporting Information [Line Items]
Assets	3,868,367	4,109,544
Corporate G&A
Segment Reporting Information [Line Items]
Assets	1,165,761	720,077
North America Solutions | Operating Segments
Segment Reporting Information [Line Items]
Assets	3,418,569	3,812,718
Offshore Gulf of Mexico | Operating Segments
Segment Reporting Information [Line Items]
Assets	84,580	93,501
International Solutions | Operating Segments
Segment Reporting Information [Line Items]
Assets	269,820	181,181
Other | Operating Segments
Segment Reporting Information [Line Items]
Assets	$ 95,398	$ 22,144

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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