STOCK COMPENSATION PLANS (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
STOCK COMPENSATION PLANS
Total compensation expense related to stock options and restricted stock awards, before taxes	$ 13,500,000	$ 12,700,000	$ 13,500,000
Total compensation expense related to stock options and restricted stock awards, net income	7,900,000	7,300,000	7,900,000
Net tax benefit recognized in equity for stock compensation plans	5,522,000	462,000	717,000
Incentive shares available to be issued	4,160,200
Stock Options
Summary of Stock-based Compensation Plans
Cash proceeds from stock option exercises	$ 1,700,000	$ 2,700,000