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Equity Compensation Plans (Tables) | 3 Months Ended
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Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Equity Compensation Plans | The unamortized compensation cost of awards issued under the Incentive Plan and purchases under the Employee Stock Purchase Plan totaled $25 million at March 31, 2015, as shown in the following table.
|  | Three Months Ended March 31, 2015
(In Thousands) |  | Restricted Stock |  | Deferred Stock Units |  | Performance Stock Units |  | Employee Stock Purchase Plan |  | Total
Unrecognized compensation cost at beginning of period |  | $ | 1,091 |  |  | $ | 12,304 |  |  | $ | 6,874 |  |  | $ | — |  |  | $ | 20,269 |
Equity grants |  | 2,636 |  |  | 5,162 |  |  | — |  |  | 236 |  |  | 8,034 |
Equity grant forfeitures |  | (162 | ) |  | — |  |  | — |  |  | — |  |  | (162 | )
Equity compensation expense |  | (250 | ) |  | (1,575 | ) |  | (854 | ) |  | (59 | ) |  | (2,738 | )
Unrecognized Compensation Cost at End of Period |  | $ | 3,315 |  |  | $ | 15,891 |  |  | $ | 6,020 |  |  | $ | 177 |  |  | $ | 25,403 |

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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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