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Equity And Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2015
Stock Based Compensation And Employee Stock Option Plan [Abstract] |
Schedule Of Fair Value Of Options, Weighted Average Assumptions |
|  |  |  |  | 2015 |  | 2014 |
Stock option exercise price |  |  |  |  | $ | 13.30 |  | $ | 7.40 |
Risk-free interest rate |  |  |  |  |  | 2.23% |  | 2.88% |
Expected dividend yield |  |  |  |  |  | -- |  | -- |
Expected option life in years |  |  |  |  |  | 4 |  | 10 |
Expected volatility |  |  |  |  |  | 31.86% |  | 30.65% |
Weighted average fair value |  |  |  |  | $ | 3.82 |  | $ | 2.46 |
Schedule Of Stock Options Outstanding And Exercisable |
|  | Options Outstanding |  | Exercisable Options
|  | Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Years of Contractual Life |  | Number of Options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Years of Contractual Life
(Shares in thousands) |  | Class A |  | Class B |  | Class A |  | Class B |  | Class A & B |  | Class A |  | Class B |  | Class A |  | Class B |  | Class A & B
Balance - December 31, 2014 |  | 568 |  | 185 |  | $ | 6.88 |  | $ | 9.90 |  | 2.44 |  | 348 |  | 185 |  | $ | 6.82 |  | $ | 9.90 |  | 3.11
Granted |  | 12 |  | -- |  |  | 12.34 |  |  | -- |  |  |  | 13 |  | -- |  |  | -- |  |  | -- |  |
Exercised |  | (48) |  | -- |  |  | 6.87 |  |  | -- |  |  |  | (47) |  | -- |  |  | -- |  |  | -- |  |
Balance - March 31, 2015 |  | 532 |  | 185 |  | $ | 7.01 |  | $ | 9.90 |  | 3.05 |  | 314 |  | 185 |  | $ | 7.02 |  | $ | 9.90 |  | 2.64
Granted |  | 100 |  | -- |  |  | 13.42 |  |  | -- |  |  |  | 31 |  | -- |  |  | -- |  |  | -- |  |
Exercised |  | (90) |  | (85) |  |  | 5.29 |  |  | 9.51 |  |  |  | (89) |  | (85) |  |  | -- |  |  | -- |  |
Forfeited |  | (4) |  | -- |  |  | 6.23 |  |  | -- |  |  |  | (3) |  | -- |  |  | -- |  |  | -- |  |
Balance - June 30, 2015 |  | 538 |  | 100 |  | $ | 8.49 |  | $ | 10.24 |  | 3.23 |  | 253 |  | 100 |  | $ | 7.56 |  | $ | 10.24 |  | 2.41
Granted |  | - |  | - |  |  | - |  |  | - |  |  |  | 13 |  | - |  |  | - |  |  | - |  |
Exercised |  | (10) |  | (100) |  |  | 8.35 |  |  | 10.24 |  |  |  | (10) |  | (100) | (1) |  | - |  |  | - |  |
Forfeited |  | (4) |  | - |  |  | 6.23 |  |  | - |  |  |  | (2) |  | - |  |  | - |  |  | - |  |
Balance - September 30, 2015 |  | 524 |  | -- |  | $ | 8.51 |  |  | - |  | 3.28 |  | 254 |  | -- |  | $ | 7.46 |  | $ | -- |  | 2.65
(1) The 100,000 Class B common stock options were exercised by a trust owned by the beneficial owners of the Company.

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number of fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term for both options (or share units) currently outstanding and options (or share units) exercisable (or convertible). + 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 (e) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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