Earnings Per Share Attributable to Stockholders (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share Attributable to Stockholders [Abstract]

Computation of Basic and Diluted Earnings Per Share

	Net income	WA
	attributable to	number		Per share
Three months ended March 31, 2018	stockholders	of shares		amount
Basic	17,138	107,355,381	$	0.16
Effect of dilutive securities:
Share units	-	358,087		-
Stock options	-	930,429		-
Diluted	17,138	108,643,897	$	0.16

8.  Earnings per share attributable to stockholders (continued)

	Net income	WA
	attributable to	number		Per share
Three months ended March 31, 2017	stockholders	of shares		amount
Basic	10,377	106,851,595	$	0.10
Effect of dilutive securities:
Share units	27	263,557		-
Stock options	-	673,797		-
Diluted	10,404	107,788,949	$	0.10