SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	Sep. 30, 2017 subsidary
The Bank
Subsequent Event [Line Items]
Number of wholly-owned non-bank subsidiaries	5

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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