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Stockholders' Equity (Details 2) (Collared Accelerated Repurchase Program [Member], USD $) In Millions, unless otherwise specified | 0 Months Ended
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Feb. 27, 2014
Share Repurchase Program |
Common stock repurchase authorized amount | $ 75
Minimum |
Share Repurchase Program |
Number of shares authorized to be repurchased | 1.4
Maximum |
Share Repurchase Program |
Number of shares authorized to be repurchased | 1.7

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

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
- Definition The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant