Reportable Segments Narrative (Details)	1 Months Ended	8 Months Ended
	Sep. 30, 2019 segment market	Aug. 31, 2019 segment	Jun. 30, 2019 segment	Jun. 30, 2019 affiliate
Segment Reporting Information [Line Items]
Number of reportable segments | segment	2	3
Number of affiliates			2	2
Private Banking
Segment Reporting Information [Line Items]
Number of geographic markets | market	3