XML 133 R116.htm IDEA: XBRL DOCUMENT v3.19.2
SHARE CAPITAL, EARNINGS PER SHARE AND DIVIDENDS - Earnings per share computation (Details) - shares
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Share Capital, Reserves And Other Equity Interest [Abstract]    
Weighted average number of common shares outstanding, shares 266,580,019 268,235,077
Effect of dilutive stock options, shares 1,394,135 1,219,713
Weighted average number of common shares outstanding for diluted earnings per share calculation, shares 267,974,154 269,454,790