SEGMENT REPORTING (Additional Information) (Detail) $ in Millions	Sep. 30, 2017 USD ($)
Investment Management
Segment Reporting Information [Line Items]
Assets under management	$ 1,300

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration