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.

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

Subsequent Events (Details) - Maximum - USD ($)	Nov. 06, 2015	Nov. 03, 2014
Subsequent Event [Line Items]
Shelf registration statement, aggregate dollar amount		$ 150,000,000.0
Subsequent event \| Common stock \| RBC Capital Markets, LLC and Cantor Fitzgerald & Co
Subsequent Event [Line Items]
Shelf registration statement, aggregate dollar amount	$ 50,000,000.0