Earnings (Loss) Per Share (Details) $ in Millions	Aug. 31, 2015 USD ($)
Earnings Per Share [Abstract]
Remaining authorized stock repurchase amount	$ 59.9

Amount remaining of a stock repurchase plan authorized.

No definition available.

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant