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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2013
Share-based Compensation [Abstract] |
Summary Of Stock Option Activity | A summary of the status of stock options and related activity for the six months ended June 30, 2013 is presented below:
| Shares |  | Weighted Average Exercise Price per Share |  | Weighted Average Remaining Contractual Term |  | Aggregate Intrinsic Value (In thousands)
Options outstanding at December 31, 2012 | 335,241 |  |  | $ | 6.37 |  |  | 2.39 |  | $ | 10,678 |
Granted | — |  |  | — |  |  |  |  |
Exercised | (125,000 | ) |  | 11.20 |  |  |  |  | $ | 4,797 |
Forfeited/expired | — |  |  | — |  |  |  |  |
Options outstanding at June 30, 2013 | 210,241 |  |  | $ | 3.50 |  |  | 1.57 |  | $ | 9,165 |
Options exercisable at June 30, 2013 | 210,241 |  |  | $ | 3.50 |  |  | 1.57 |  | $ | 9,165 |
Summary Of Stock Option Plans By Exercise Price | The following table summarizes information about the stock options outstanding at June 30, 2013:
Exercise Price |  | Number Outstanding |  | Weighted Average Remaining Life (in years) |  | Number Exercisable
$ | 3.36 |  |  | 205,241 |  |  | 1.56 |  | 205,241 |
$ | 9.07 |  |  | 5,000 |  |  | 2.19 |  | 5,000 |
|  | 210,241 |  |  |  |  | 210,241 |
Summary Of Restricted Stock Award And Unit Activity | The following table summarizes restricted stock activity for the six months ended June 30, 2013:
| Number of Unvested Restricted Shares |  | Weighted Average Grant Date Fair Value
Unvested shares as of December 31, 2012 | 245,831 |  |  | $ | 31.88 |
Granted | 178,500 |  |  | 35.80 |
Vested | (82,720 | ) |  | 34.85 |
Forfeited | — |  |  | — |
Unvested shares as of June 30, 2013 | 341,611 |  |  | $ | 33.21 |

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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + 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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