EQUITY (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Stock options	Dec. 31, 2012 Stock options	Dec. 31, 2011 Stock options	Dec. 31, 2013 Restricted Stock	Dec. 31, 2012 Restricted Stock	Dec. 31, 2011 Restricted Stock	Dec. 31, 2013 Share Based Plans Stock options	Dec. 31, 2012 Share Based Plans Stock options	Dec. 31, 2013 Share Based Plans Restricted Stock	Dec. 31, 2011 2008 Plan	May 31, 2008 2008 Plan
Treasury Stock
Shares Repurchased	163,222	9,175	5,470
Aggregate Cost	$ 8,103,000	$ 344,000	$ 218,000
Average Repurchase Price (in dollars per share)	$ 49.64	$ 37.51	$ 39.90
Stock-based compensation
Number of shares reserved to be granted under the plan													2,000,000	1,500,000
Expiration term										10 years
Vesting period				4 years			4 years			4 years		4 years
Number of Options
Outstanding at the beginning of the period (in shares)										720,448	720,648
Granted (in shares)				0	64,000	146,500					64,000
Forfeited (in shares)											(1,625)
Exercised (in shares)	(303,536)	(62,575)	(51,602)							(303,536)	(62,575)
Forfeited- Vested (in shares)										(11,625)
Forfeited- Unvested (in shares)										(4,000)
Outstanding at the end of the period (in shares)										401,287	720,448
Vested and expected to vest at the end of the period (in shares)										398,036	713,728
Exercisable at the end of the period (in shares)										241,662	453,698
Weighted Avg. Exercise Price
Outstanding at the beginning of the period (in dollars per share)										$ 34.31	$ 33.07
Granted (in dollars per share)											$ 37.36
Forfeited (in dollars per share)											$ 32.02
Exercised (in dollars per share)										$ 30.64	$ 23.22
Forfeited- Vested (in dollars per share)										$ 46.01
Forfeited- Unvested (in dollars per share)										$ 45.22
Outstanding at the end of the period (in dollars per share)										$ 36.63	$ 34.31
Vested and expected to vest at the end of the period (in dollars per share)										$ 35.86	$ 34.28
Exercisable at the end of the period (in dollars per share)										$ 35.86	$ 32.02
Weighted Average Remaining Contractual Term
Outstanding										6 years	6 years 3 months 18 days
Vested and expected to vest										6 years	6 years 3 months 18 days
Exercisable										5 years 2 months 12 days	5 years 3 months 18 days
Aggregate Intrinsic Value
Outstanding										8,000,149	3,499,252
Vested and expected to vest										7,934,478	3,488,633
Exercisable										5,004,299	2,987,705
Unamortized stock based compensation
Unamortized stock based compensation				1,400,000			5,100,000
Weighted-average period for recognition of unamortized stock-based compensation cost				1 year 6 months			2 years 9 months 18 days
Stock-based compensation, additional disclosures
Weighted-average fair value of options granted (in dollars per share)		$ 15.27	$ 13.18
Aggregate intrinsic value of options exercised	6,111,000	938,000	822,000
Cash proceeds received upon exercise of options	2,669,000	1,452,000	1,175,000
Excess tax benefits from share-based compensation	(2,102,000)	362,000
Weighted-average assumptions using Black-Scholes option-pricing model for estimating fair value of each option granted
Risk-free interest rate (as a percent)		1.40%	2.10%
Expected dividend yield (as a percent)		2.50%	2.70%
Expected life		6 years 3 months	6 years 3 months
Expected volatility (as a percent)		53.00%	51.00%
Stock compensation expense
Stock compensation expense				$ 1,400,000	$ 1,800,000	$ 1,600,000	$ 3,100,000	$ 1,800,000	$ 1,600,000
Shares
Unvested at the beginning of the period (in shares)							103,853	68,773
Granted (in shares)							100,902	72,083	21,925
Forfeited (in shares)							(250)	(1,499)
Vested and issued (in shares)							(49,986)	(35,504)
Unvested at the end of the period (in shares)							154,519	103,853	68,773
Weighted Avg. Fair Value
Unvested at the beginning of the period (in dollars per share)							$ 39.63	$ 41.39
Granted (in dollars per share)							$ 48.54	$ 36.93
Forfeited (in dollars per share)							$ 46.85	$ 38.60
Vested and issued (in dollars per share)							$ 43.96	$ 37.58
Unvested at the end of the period (in dollars per share)							$ 44.04	$ 39.63	$ 41.39