CAPITAL STOCK (Tables)

12 Months Ended

Dec. 31, 2019

CAPITAL STOCK

Schedule of number of shares of common stock and treasury stock and the share activity

	Common Shares		Treasury Shares
	2019	2018	2019	2018
Balance at the beginning of the year	67,341,316	66,742,490	4,424,884	4,881,889
Employee option exercises	1,079,841	1,182,547	(367,705)	(502,005)
Director option exercises	146,083	—	—	—
Restricted stock vestings	41,268	39,691	—	—
Common stock repurchases	—	—	778,848	45,000
Common stock repurchased and retired	—	(623,412)	—	—
Balance at the end of the year	68,608,508	67,341,316	4,836,027	4,424,884