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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2014
Stock-Based Compensation |
Schedule of the stock option activity |
|  | Options |  | Weighted-Average Exercise Price |
Outstanding at January 1, 2014 |  | 1,147,320 |  | $ | 13.21 |
Exercised |  | (34,459 | ) | $ | 3.91 |
Forfeited |  | (154 | ) | $ | 24.45 |
Outstanding at June 30, 2014 |  | 1,112,707 |  | $ | 13.49
Schedule of restricted stock activity |
|  | Shares |  | Weighted-Average Grant Date Fair Value |
Outstanding at January 1, 2014 |  | 211,716 |  | $ | 21.33 |
Granted |  | 82,351 |  | $ | 24.46 |
Vested |  | (62,082 | ) | $ | 20.91 |
Forfeited |  | (202 | ) | $ | 24.68 |
Outstanding at June 30, 2014 |  | 231,783 |  | $ | 22.55 |
Summary of performance shares activity |
|  | Shares |  | Weighted-Average Grant Date Fair Value |
Outstanding at January 1, 2014 |  | 87,194 |  | $ | 21.29 |
Granted at target |  | 85,078 |  | $ | 27.69 |
Outstanding at June 30, 2014 |  | 172,272 |  | $ | 24.45
Summary of the performance shares awarded at target outstanding by performance measure | The following summarizes the performance shares awarded at target outstanding by performance measure as of June 30, 2014.
|  | Performance |
|  | Shares |
Shares with ROE measures |  | 87,194 |
Shares with ROIC measures |  | 42,539 |
Shares with TSR measures |  | 42,539 |
|  | 172,272

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- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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)(2) -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 exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired 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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