Earnings per share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Schedule of earnings per share

The number of stock awards outstanding but not included in the computation of diluted earnings per common share because their effect was anti-dilutive is 1,182,572, 1,663,219 and 2,734,825 for the years ended December 31, 2020, 2021 and 2022, respectively.

	Year ended December 31,
	2020		2021		2022
Net income	$	308,276	$	369,448	$	353,404
Weighted average number of common shares used in computing basic earnings per common share	190,396,780		187,802,219		184,184,930
Dilutive effect of stock-based awards	5,384,191		5,159,622		3,902,310
Weighted average number of common shares used in computing dilutive earnings per common share	195,780,971		192,961,841		188,087,240
Earnings per common share
Basic	$	1.62	$	1.97	$	1.92
Diluted	$	1.57	$	1.91	$	1.88