XML 19 R34.htm IDEA: XBRL DOCUMENT
v3.19.3

Share Capital (Tables) | 9 Months Ended
--- | ---
Sep. 30, 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 September 30, |  | For the Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Class A Stock outstanding, beginning of period | 12,756,308 |  |  | 13,156,353 |  |  | 12,941,809 |  |  | 13,139,203 |
Issued pursuant to share-based compensation plans | 19,052 |  |  | 21,578 |  |  | 80,143 |  |  | 38,728 |
Repurchased and canceled pursuant to the stock buy-back | (76,657 | ) |  | — |  |  | (323,249 | ) |  | — |
Class A Stock outstanding, end of period | 12,698,703 |  |  | 13,177,931 |  |  | 12,698,703 |  |  | 13,177,931 |

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCommonStockOutstandingRollForwardTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration