BUSINESS SEGMENTS AND GEOGRAPHIC INFORMATION - Revenues from External Customers by Country (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Revenues	$ 467,597	$ 296,171	$ 877,379	$ 542,548
United States
Segment Reporting Information [Line Items]
Revenues	439,793	280,757	811,282	516,201
Argentina
Segment Reporting Information [Line Items]
Revenues	15,450	6,979	44,601	8,532
Bahrain
Segment Reporting Information [Line Items]
Revenues	4,826	6,921	12,459	14,470
United Arab Emirates
Segment Reporting Information [Line Items]
Revenues	1,524	0	1,524	990
Colombia
Segment Reporting Information [Line Items]
Revenues	5,622	946	5,997	1,375
Other Foreign
Segment Reporting Information [Line Items]
Revenues	$ 382	$ 568	$ 1,516	$ 980