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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary Of The Changes In The Number Of Outstanding Phantom Stock Shares |
|  | Employee Phantom Plans |  | Director Phantom Stock Plan |  | Total
Balance of shares outstanding at December 31, 2013 |  | 489,657 |  |  | 67,517 |  |  | 557,174 |
Granted |  | 62,731 |  |  | 8,220 |  |  | 70,951 |
Settled |  | (992 | ) |  | — |  |  | (992 | )
Forfeited |  | — |  |  | — |  |  | — |
Balance of shares outstanding at December 31, 2014 |  | 551,396 |  |  | 75,737 |  |  | 627,133 |
Schedule of cash payments and compensation costs |
|  | Year Ended December 31,
(In thousands) |  | 2014 |  | 2013 |  | 2012
Cash payments for settled shares |  | $ | 2,401 |  |  | $ | 1,404 |  |  | $ | 1,077 |
Compensation costs |  | 11,249 |  |  | 7,639 |  |  | 5,404 |
|  | Year Ended December 31,
(In thousands) |  | 2014 |  | 2013 |  | 2012
Cash payments for settled shares |  | $ | — |  |  | $ | — |  |  | $ | — |
Compensation costs |  | 2,193 |  |  | 1,214 |  |  | 989 |
Schedule of Phantom Stock Liability |
|  | December 31,
(In thousands) |  | 2014 |  | 2013
Employee Phantom Plans |  | $ | 29,058 |  |  | $ | 20,210 |
Director Phantom Stock Plan |  | 5,614 |  |  | 3,422 |
Total |  | $ | 34,672 |  |  | $ | 23,632 |

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- Definition Tabular disclosure of the amount of cash payments and compensation costs related to the exercise of stock options and similar instruments granted under share-based payment arrangements during the period. + References No definition available. + Details
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- Definition Tabular disclosure of the amount of liability as of the balance sheet date related to the exercise of stock options and similar instruments granted under share-based payment arrangements. + References No definition available. + Details
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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -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 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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