Share capital (Tables)

3 Months Ended

Mar. 31, 2022

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,
	2022	2021
Class A Stock outstanding, beginning of period	12,447,036	12,381,778
Issued pursuant to share-based compensation plans	86,451	204,265
Repurchased and canceled pursuant to the stock buy-back	(377,313)	—
Class A Stock outstanding, end of period	12,156,174	12,586,043