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Share-Based Compensation: (Tables) | 6 Months Ended
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Jun. 30, 2013
Share-Based Compensation: |
Stock Option Activity | Activity in the Company’s stock option plans for the six months ended June 30, 2013, was as follows (in thousands, except weighted average exercise price and weighted average contractual life):
|  |  |  |  |  |  |  |  |  | Weighted |  | Weighted |  |  |
|  |  |  |  |  | 1998 |  |  |  | Average |  | Average |  | Aggregate |
|  | 2007 |  | 1998 |  | Director |  | Total |  | Exercise |  | Contractual |  | Intrinsic |
|  | Plan |  | Plan |  | Plan |  | Shares |  | Price |  | Life |  | Value |
Outstanding, January 1, 2013 |  | 954 |  | 253 |  | 146 |  | 1,353 |  | $ | 21.15 |  |  |  |  |
Granted |  | — |  | — |  | — |  | — |  | $ | — |  |  |  |  |
Exercised |  | (42 | ) | — |  | (6 | ) | (48 | ) | $ | 17.41 |  |  |  |  |
Forfeited and expired |  | (6 | ) | (2 | ) | — |  | (8 | ) | $ | 21.74 |  |  |  |  |
Outstanding, June 30, 2013 |  | 906 |  | 251 |  | 140 |  | 1,297 |  | $ | 21.28 |  | 5.1 |  | $ | 4,897 |
Exercisable, June 30, 2013 |  | 704 |  | 251 |  | 140 |  | 1,095 |  | $ | 21.14 |  | 4.6 |  | $ | 4,307 |
Non-Vested Restricted Stock Unit Activity | The following table summarizes non-vested restricted stock unit activity through June 30, 2013, (in thousands, except weighted average grant-date fair value amounts):
|  | 2007 |  |  |
|  | Plan |  | Weighted |
|  | Restricted |  | Average |
|  | Stock |  | Grant-Date |
|  | Units |  | Fair Value |
Outstanding, January 1, 2013 |  | 356 |  | $ | 17.97 |
Granted |  | 367 |  | $ | 26.64 |
Vested |  | (152 | ) | $ | 17.20 |
Canceled |  | — |  | $ | 0.00 |
Outstanding, June 30, 2013 |  | 571 |  | $ | 23.76 |
Summary of Compensation Cost and Other Measures Related to Share-Based Payments | A summary of compensation cost related to share-based payments for the three and six months ended June 30, 2013 and 2012, exclusive of A&B related compensation prior to the Separation, is as follows (in millions):
|  | Three Months Ended |  | Six Months Ended |
|  | June 30, |  | June 30, |
|  | 2013 |  | 2012 |  | 2013 |  | 2012 |
Share-based expense (net of estimated forfeitures): |  |  |  |  |  |  |  |  |
Stock options |  | $ | 0.1 |  | $ | 0.2 |  | $ | 0.2 |  | $ | 0.4 |
Non-vested stock/Restricted stock units |  | 1.4 |  | 0.6 |  | 2.6 |  | 1.4 |
Total share-based expense |  | 1.5 |  | 0.8 |  | 2.8 |  | 1.8 |
Total recognized tax benefit |  | (0.6 | ) | (0.3 | ) | (1.1 | ) | (0.7 | )
Share-based expense (net of tax) |  | $ | 0.9 |  | $ | 0.5 |  | $ | 1.7 |  | $ | 1.1 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 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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