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SHARE CAPITAL, EARNINGS PER SHARE AND DIVIDENDS (Tables)
12 Months Ended
Mar. 31, 2021
Share Capital, Reserves And Other Equity Interest [Abstract]  
Earnings per share
Earnings per share computation
The denominators for the basic and diluted earnings per share computations are as follows:
 20212020
Weighted average number of common shares outstanding 272,009,538 265,951,131 
Effect of dilutive stock options  1,644,353 
Weighted average number of common shares outstanding for diluted earnings per share calculation
272,009,538 267,595,484