STOCK INCENTIVE AND STOCK OPTION PLANS (Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period, Shares			1,884,318	2,764,854
Exercised, Shares				(64,000)
Cancelled or forfeited, Shares				(509,236)
Expired, Shares				(307,300)
Outstanding at end of period, Shares	1,884,318			1,884,318
Exercisable at end of period, Shares	1,715,431			1,715,431
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period, Weighted-Average Exercise Price			$ 19.69	$ 20.58
Exercised, Weighted-Average Exercise Price				22.67
Cancelled or forfeited, Weighted-Average Exercise Price				23.60
Outstanding at end of period, Weighted-Average Exercise Price	$ 19.69			19.69
Exercisable at end of period, Weighted-Average Exercise Price	$ 20.45			$ 20.45
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding at end of period, Weighted-Average Remaining Contractual Term (years)	2 years 8 months 12 days		1 year 9 months 18 days
Exercisable at end of period, Weighted-Average Remaining Contractual Term (years)	2 years 6 months		1 year 8 months 12 days
Outstanding at end of period, Aggregate Intrinsic Value	$ 10,806		$ 2,672	$ 10,806
Exercisable at end of period, Aggregate Intrinsic Value	$ 8,528		$ 1,831	$ 8,528
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period, Shares		1,056,977	1,884,318
Exercised, Shares		(520,538)	(662,721)
Cancelled or forfeited, Shares		(237,286)	(19,500)
Expired, Shares		(33,755)	(145,120)
Outstanding at end of period, Shares	1,884,318	265,398	1,056,977	1,884,318
Exercisable at end of period, Shares		265,398	977,491
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period, Weighted-Average Exercise Price		$ 20.67	$ 19.69
Exercised, Weighted-Average Exercise Price		20.06	17.32
Cancelled or forfeited, Weighted-Average Exercise Price		23.22	20.26
Expired, Weighted-Average Exercise Price		21.93	23.26
Outstanding at end of period, Weighted-Average Exercise Price	$ 19.69	19.43	20.67	$ 19.69
Exercisable at end of period, Weighted-Average Exercise Price		$ 19.43	$ 21.38
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding at end of period, Weighted-Average Remaining Contractual Term (years)		1 year 4 months 24 days
Exercisable at end of period, Weighted-Average Remaining Contractual Term (years)		1 year 4 months 24 days
Outstanding at end of period, Aggregate Intrinsic Value		$ 1,268
Exercisable at end of period, Aggregate Intrinsic Value		$ 1,268