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Consolidated Statements Of Shareholders' Equity (Parenthetical) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended |
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Mar. 31, 2013
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Dec. 31, 2012
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| Statement of Stockholders' Equity [Abstract] | ||
| Issuance of common stock from stock-based compensation awards, tax benefit | $ 3,895 | $ 18,900 |
| X | ||||||||||
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- Definition
Adjustment to additional paid in capital related to the net effect of excess tax benefits and tax deficiencies associated with an equity-based compensation plan other than an employee stock ownership plan (ESOP). No definition available.
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| X | ||||||||||
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- Details
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