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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2013
Summary of Restricted Stock Activity | A summary of the Company’s restricted stock activity follows:
|  | 2013 |  |  | 2012 |
|  | Shares |  |  | Fair Market Value at Date of Grant |  |  | Shares |  |  | Fair Market Value at Date of Grant |
(Dollars in thousands) |  |  |  |  |  |  |  |  |  |  |  |
Restricted stock at January 1 |  |  | 1,771,664 |  |  | $ | 41,522 |  |  |  | 1,817,745 |  |  | $ | 40,655 |
Granted |  |  | 234,537 |  |  |  | 11,211 |  |  |  | 394,928 |  |  |  | 10,846 |
Vested |  |  | (451,583 | ) |  |  | (8,430 | ) |  |  | (104,069 | ) |  |  | (2,823 | )
Cancellations |  |  | (25,980 | ) |  |  | (604 | ) |  |  | (7,550 | ) |  |  | (157 | )
Restricted stock at June 30 |  |  | 1,528,638 |  |  | $ | 43,699 |  |  |  | 2,101,054 |  |  | $ | 48,521 |
Summary of Performance Unit Activity | A summary of the Company’s performance unit activity follows:
|  | 2013 |
(Dollars in thousands) |  | Units |  |  | Fair Market Value at Date of Grant |
Performance units at January 1 |  |  | — |  |  | $ | — |
Granted |  |  | 70,600 |  |  |  | 3,377 |
Performance units at June 30 |  |  | 70,600 |  |  | $ | 3,377 |
Compensation Expense for Restricted Stock Recognized in Condensed Consolidated Statements of Income | Compensation expense for share-based awards recognized in the condensed consolidated statements of income for the three- and six-month periods ended June 30, 2013 and 2012 was as follows:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |
Impact on income before income taxes |  | $ | (3,137 | ) |  | $ | (3,137 | ) |  | $ | (6,774 | ) |  | $ | (5,731 | )
Income tax benefit |  |  | 1,219 |  |  |  | 1,219 |  |  |  | 2,631 |  |  |  | 2,228 |
Impact on net income |  | $ | (1,918 | ) |  | $ | (1,918 | ) |  | $ | (4,143 | ) |  | $ | (3,503 | )

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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 number and weighted-average grant date fair value for outstanding performance shares. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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