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Stockholders' Equity Share Repurchase Program (Details)
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12 Months Ended | |
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Dec. 31, 2012
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Dec. 31, 2011
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| Class of Stock [Line Items] | ||
| Stock Repurchase Program, Number of Shares Authorized to be Repurchased | 25,000,000 | 10,000,000 |
| Stock Repurchase Program, Number of Additional Shares Authorized to be Repurchased | 15,000,000 |
| X | ||||||||||
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- Definition
Addition to the number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan during the period. No definition available.
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- Details
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| X | ||||||||||
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- Definition
The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan. No definition available.
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