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v3.19.1

Share Capital (Tables) | 3 Months Ended
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Mar. 31, 2019
Equity [Abstract] |
Changes in Number of Shares of Class A Stock Outstanding | The following table reflects changes in the number of shares of Class A Stock outstanding for the periods indicated:
| For the Three Months Ended March 31,
| 2019 |  | 2018
Class A Stock outstanding, beginning of period | 12,941,809 |  |  | 13,139,203 |
Issued pursuant to share-based compensation plans | 61,091 |  |  | 1,900 |
Repurchased and canceled pursuant to the stock buy-back | (79,383 | ) |  | — |
Class A Stock outstanding, end of period | 12,923,517 |  |  | 13,141,103 |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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