STOCK BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2013

STOCK BASED COMPENSATION

Schedule of stock option activity

					Weighted
			Weighted		Average	Aggregate
	Number of		Average		Remaining	Intrinsic
	Options		Exercise		Contractual	Value
	Outstanding		Price		Life	(in 000’s)
Outstanding options at January 1, 2013	1,472,602		$	44.45
Options granted	265,850		$	71.58
Options exercised	(153,262	)	$	33.95		$	5,942
Options canceled/forfeited	(20,760	)	$	50.93
Outstanding options at June 30, 2013	1,564,430		$	50.00	5.59	$	41,315
Exercisable options at June 30, 2013	737,180		$	39.66	4.38	$	27,095

					Weighted
			Weighted		Average	Aggregate
	Number of		Average		Remaining	Intrinsic
	Options		Exercise		Contractual	Value
	Outstanding		Price		Life	(in 000’s)
Outstanding options at January 1, 2012	1,280,866		$	43.23
Options granted	253,400		$	69.23
Options exercised	(61,173	)	$	40.52		$	1,885
Options canceled/forfeited	(2,710	)	$	47.33
Outstanding options at June 30, 2012	1,470,383		$	47.82	5.68	$	30,230
Exercisable options at June 30, 2012	725,363		$	40.59	4.55	$	20,026

Schedule of stock option assumptions for fair value estimate

	2013			2012
Weighted-average fair value of grants	$	12.99		$	13.29
Risk-free interest rates	0.74		%	0.95		%
Dividend yield	2.00		%	1.93		%
Expected volatility	25.41		%	25.64		%
Expected option life	5.23 years			5.40 years