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Subsequent Events (Details) (Subsequent Event [Member], USD $) | 3 Months Ended
--- | ---
Sep. 12, 2013
Subsequent Event [Member] |
Subsequent Event [Line Items] |
Self-tender offer to repurchase common stock | $ 40,000,000

X
- Definition Amount of a stock repurchase plan authorized by an entity's Board of Directors. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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