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