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Earnings per share attributable to stockholders (Tables)

6 Months Ended

Jun. 30, 2021

Earnings per share attributable to stockholders

Computation of Basic and Diluted Earnings Per Share


		Three months ended								Six months ended
		June 30, 2021								June 30, 2021
		Net income			WA		Per			Net income			WA		Per
		attributable to			number		share			attributable to			number		share
		stockholders			of shares		amount			stockholders			of shares		amount
Basic		$	60,749		110,311,615		$	0.55		$	88,937		110,144,229		$	0.81
Effect of dilutive securities:
Share units			—		322,371			—			—		450,752
Stock options			—		700,198			—			—		707,730			(0.01)
Diluted		$	60,749		111,334,184		$	0.55		$	88,937		111,302,711		$	0.80


		Three months ended								Six months ended
		June 30, 2020								June 30, 2020
		Net income			WA		Per			Net income			WA		Per
		attributable to			number		share			attributable to			number		share
		stockholders			of shares		amount			stockholders			of shares		amount
Basic		$	53,043		108,387,490		$	0.49		$	75,851		108,818,903		$	0.70
Effect of dilutive securities:
Share units			—		424,812			—			—		505,443			—
Stock options			—		511,041			—			—		579,462			(0.01)
Diluted		$	53,043		109,323,343		$	0.49		$	75,851		109,903,808		$	0.69