Subsequent Events (Details) $ in Millions	6 Months Ended
Dec. 31, 2017 USD ($)
UBS Asset Management Fund Administration Servicing Business \| Forecast
Subsequent Event [Line Items]
Expected payment to acquire business	$ 175

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