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Employer Share Plans (Tables) | 6 Months Ended
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Jun. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Schedule of Share-Based Compensation Awards | Compensation expense for stock-based awards recognized during the three and six months ended June 30, 2013 and 2012 was as follows (in thousands):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Stock options |  | $ | 730 |  |  | $ | 687 |  |  | $ | 1,449 |  |  | $ | 1,470 |
Restricted stock awards |  |  | 758 |  |  |  | 676 |  |  |  | 1,475 |  |  |  | 1,399 |
Total stock-based compensation expense |  | $ | 1,488 |  |  | $ | 1,363 |  |  | $ | 2,924 |  |  | $ | 2,869 |
Stock Award Activity | Stock award activity during the six months ended June 30, 2013 was as follows (in thousands, except per share data):
|  | Stock Options |  |  | Restricted Stock Awards |
|  | Number of Options |  |  | Weighted Average Exercise Price Per Share |  |  | Number of Shares |  |  | Weighted Average Grant- Date Fair Value (1) |
Outstanding at beginning of year |  |  | 7,541 |  |  | $ | 7.18 |  |  |  | 1,078 |  |  | $ | 6.66 |
Granted |  |  | 1,497 |  |  | $ | 6.52 |  |  |  | 530 |  |  | $ | 6.44 |
Exercised or released |  |  | (6 | ) |  | $ | 5.87 |  |  |  | (433 | ) |  | $ | 6.87 |
Expired or canceled |  |  | (825 | ) |  | $ | 7.56 |  |  |  | (8 | ) |  | $ | 7.24 |
Outstanding at June 30, 2013 |  |  | 8,207 |  |  | $ | 7.03 |  |  |  | 1,167 |  |  | $ | 6.48 |
Exercisable at June 30, 2013 |  |  | 4,546 |  |  | $ | 7.43 |  |  |  |  |  |  |  |  |
(1) | Represents weighted average market value of the shares; awards are granted at no cost to the recipients.

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: 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 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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