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EARNINGS PER SHARE (Tables)
12 Months Ended
Dec. 31, 2019
Earnings Per Share  
Weighted average number of common shares outstanding

In Thousands of Shares
Description   2019     2018     2017  
Issued common shares at January 1     64,676       56,378       49,116  
Effect of shares issued     4,169       4,088       3,532  
Weighted average number of common shares outstanding at December 31     68,845       60,466       52,648