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BUSINESS SEGMENTS AND GEOGRAPHIC INFORMATION - Revenues from External Customers by Country (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenues	$ 409,782	$ 246,377
United States
Segment Reporting Information [Line Items]
Revenues	371,488	235,444
Argentina
Segment Reporting Information [Line Items]
Revenues	29,152	1,553
Bahrain
Segment Reporting Information [Line Items]
Revenues	7,632	7,549
United Arab Emirates
Segment Reporting Information [Line Items]
Revenues	0	990
Colombia
Segment Reporting Information [Line Items]
Revenues	375	429
Other Foreign
Segment Reporting Information [Line Items]
Revenues	$ 1,135	$ 412

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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