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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2012
Share-based Compensation [Abstract] |
Summary of Stock Option Activity | A summary of the stock option activity under the Company’s plans as of December 31, 2012 and changes during the year then ended is presented below:
| Shares |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value (in 000’s)
Outstanding at January 1, 2012 | 544,225 |  | $ | 46.09 |  |  |  |  |
Granted | 0 |  |  |  |  |  |
Exercised | (65,450) |  | $ | 38.07 |  |  |  |  |
Canceled or expired | (27,750) |  |  |  |  |  |
Outstanding at December 31, 2012 | 451,025 |  | $ | 47.22 |  |  | 4.5 |  | $ | 724 |
Exercisable at December 31, 2012 | 408,775 |  | $ | 48.59 |  |  | 4.3 |  | $ | 479 |
Schedule of Options Authorized under Stock Option Plans, by Exercise Price Range | The following table presents information regarding stock options outstanding at December 31, 2012:
| Options Outstanding |  | Options Exercisable
Range of Exercise Prices | Number of Options |  | Weighted-Avg. Remaining Contractual Life (Years) |  | Weighted- Avg. Exercise Price |  | Number of Options |  | Weighted- Avg. Exercise Price
$33.61-40.53 | 131,525 |  | 6.1 |  | $ | 34.21 |  |  | 89,275 |  | $ | 34.36 |
$47.61-51.51 | 166,000 |  | 4.6 |  | $ | 49.64 |  |  | 166,000 |  | $ | 49.64 |
$52.13-58.83 | 153,500 |  | 2.9 |  | $ | 55.73 |  |  | 153,500 |  | $ | 55.73 |
Summary of Vested And Unvested RSU | A summary of the restricted stock and restricted stock units activity as of December 31, 2012 and 2011, and changes during the years then ended is as follows:
| 2012 |  | 2011 |  | 2010
| Shares |  | Weighted- Average Fair Value per Share |  | Shares |  | Weighted- Average Fair Value per Share |  | Shares |  | Weighted- Average Fair Value per Share
Outstanding at January 1 | 135,000 |  | $ | 40.70 |  |  | 55,000 |  | $ | 41.40 |  |  | 0 |  |  | $ | 0.00 |
Granted | 92,000 |  | 44.01 |  |  | 80,000 |  | 40.22 |  |  | 55,000 |  |  | $ | 41.40 |
Vested | 0 |  |  |  | 0 |  |  |  | 0 |  |  |
Forfeited/Canceled | (3,000) |  |  |  | 0 |  |  |  | 0 |  |  |
Expired | (55,000) |  |  |  | 0 |  |  |  | 0 |  |  |
Outstanding at December 31 | 169,000 |  | $ | 42.22 |  |  | 135,000 |  | $ | 40.70 |  |  | $ | 55,000 |  |  | $ | 41.40 |

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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 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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