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Subsequent Event (Details) (USD $) In Thousands, unless otherwise specified | Oct. 29, 2013 | Oct. 28, 2014 Common Stock Subsequent Event
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Subsequent Event [Line Items] |  |
Authorized amount under share repurchase program | $ 20,000 | $ 15,000

X
- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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