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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2013
Summary of Restricted Stock Activity | A summary of the Company’s restricted stock activity follows:
| 2013 |  | 2012 |  | 2011
| Shares |  | Weighted Average Grant- Date Fair Value |  | Shares |  | Weighted Average Grant- Date Fair Value |  | Shares |  | Weighted Average Grant- Date Fair Value
Restricted stock at January 1 | 1,771,664 |  |  | $ | 23.44 |  |  | 1,817,745 |  |  | $ | 22.37 |  |  | 1,478,000 |  |  | $ | 20.70 |
Granted | 331,053 |  |  | 51.99 |  |  | 394,928 |  |  | 27.46 |  |  | 575,694 |  |  | 27.80 |
Vested (a) | (605,458 | ) |  | 19.54 |  |  | (429,034 | ) |  | 22.66 |  |  | (229,979 | ) |  | 25.29 |
Forfeitures | (33,565 | ) |  | 24.76 |  |  | (11,975 | ) |  | 21.46 |  |  | (5,970 | ) |  | 22.45 |
Restricted stock at December 31 | 1,463,694 |  |  | $ | 31.48 |  |  | 1,771,664 |  |  | $ | 23.44 |  |  | 1,817,745 |  |  | $ | 22.37 |
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(a) | The total fair value of awards upon vesting for the years ended December 31, 2013, 2012, and 2011, was $29.5 million, $12.4 million, and $6.1 million, respectively.
Compensation Expense For Restricted Stock and Performance Units | Compensation expense for share-based awards recognized in the Consolidated Statements of Income, net of forfeitures was as follows (dollars in thousands):
| Year Ended December 31
| 2013 |  | 2012 |  | 2011
Restricted stock | $ | 14,238 |  |  | $ | 11,687 |  |  | $ | 9,736 |
Performance units | 523 |  |  | — |  |  | — |
Impact on income before income taxes | 14,761 |  |  | 11,687 |  |  | 9,736 |
Income tax benefit | (5,728 | ) |  | (4,543 | ) |  | (3,784 | )
Impact on net income | $ | 9,033 |  |  | $ | 7,144 |  |  | $ | 5,952 |
Unrecognized Compensation For Restricted Stock and Performance Units | The unrecognized compensation expense for all share-based awards follows (dollars in thousands):
| As of December 31, 2013
| Unrecognized Compensation Expense |  | Remaining Weighted Average Recognition Period (in years)
Restricted stock | $ | 24,500 |  |  | 2.7
Performance units | 2,941 |  |  | 3.5
Total unrecognized share-based compensation expense | $ | 27,441 |  |  | 2.8

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the total compensation cost related to nonvested awards not yet recognized and the weighted-average period over which it is expected to be recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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