SIGNIFICANT EVENTS (Details) - USD ($) $ in Thousands		3 Months Ended												12 Months Ended
	Dec. 07, 2021	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Loss Contingencies [Line Items]
Proceeds from sale of trademarks														$ 50,000	$ 0	$ 0
Noninterest income		$ 43,456	$ 53,994	$ 109,766	$ 86,591	$ 49,542	$ 62,453	$ 113,453	$ 45,455	$ 40,750	$ 41,048	$ 120,513	$ 37,483	293,807	$ 270,904	$ 239,794
Purchase agreement receivable	$ 10,000
Noninterest rebranding expense														13,100
Rebranding
Loss Contingencies [Line Items]
Cash received in purchase agreement	60,000
Proceeds from sale of trademarks	50,000
Noninterest income														$ 50,000
Remaining consideration to be paid	$ 10,000