Subsequent Events (Details) $ in Millions	Oct. 26, 2015 USD ($)
Subsequent event \| October 2015 Share Repurchase Program
Subsequent events
Stock Repurchase Program, Authorized Amount	$ 200

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