UPDATE OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
UPDATE OF SIGNIFICANT ACCOUNTING POLICIES	UPDATE OF SIGNIFICANT ACCOUNTING POLICIESA summary of our significant accounting policies is included in Note 2 of our 2021 Form 10-K. Refer to Note 8 for a description of our allowance for credit losses policy related to TriState Capital Bank. Except as discussed in Note 8, there have been no significant changes in our significant accounting policies since September 30, 2021.