CAPITAL STOCK (Tables)

12 Months Ended

Dec. 31, 2012

CAPITAL STOCK

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

	Common Shares				Treasury Shares
	2012		2011		2012			2011
Balance at the beginning of the year		82,773,322		81,796,938		16,921,022			15,047,020
Employee option exercises		1,234,163		933,175		(379,453	)		(196,817	)
Director option exercises		69,833		34,500		—			—
Restricted stock vestings		9,023		8,709		—			—
Common stock repurchases		—		—		1,616,433			2,070,819
Balance at the end of the year		84,086,341		82,773,322		18,158,002			16,921,022