INCENTIVE PLANS (Cash and Stock Consideration Received and Tax Benefit Realized from Stock Option/Sosar Exercises and Compensation Cost Recorded) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
INCENTIVE PLANS [Abstract]
Cash and stock consideration received from exercises	$ 23,199	$ 17,156	$ 15,787
Tax benefit from exercises	2,844	1,770	2,202
Compensation cost	$ 4,650	$ 3,936	$ 2,966