v2.4.1.9

Subsequent Events (Details) (USD $) In Millions, unless otherwise specified | Feb. 07, 2014 | Mar. 08, 2013 | Feb. 19, 2015
--- | --- | --- | ---
Subsequent Event [Line Items] |  |  |
Stock Repurchase Program, Authorized Amount | $ 50.0 us-gaap_StockRepurchaseProgramAuthorizedAmount1 | $ 50.0 us-gaap_StockRepurchaseProgramAuthorizedAmount1 |
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Stock Repurchase Program, Authorized Amount |  |  | $ 50.0 us-gaap_StockRepurchaseProgramAuthorizedAmount1 / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |