STOCK BASED COMPENSATION (Summary of Status of Options) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Options, Outstanding [Roll Forward]
Options outstanding at beginning of period, Options	4,064	7,509	4,668	7,537
Granted, Options		25		614
Exercised, Options	585	402	1,163	900
Forfeited, Options	(152)	(88)	(177)	(207)
Options outstanding at end of period, Options	3,327	7,044	3,327	7,044
Exercisable at end of period, Options	2,476	5,598	2,476	5,598
Weighted Average Exercise Price [Roll Forward]
Options outstanding at beginning of period, Weighted Average Exercise Price	$ 6.18	$ 5.62	$ 6.14	$ 5.53
Granted, Weighted Average Exercise Price		7.00		7.19
Exercised, Weighted Average Exercise Price	2.55	2.29	4.44	3.83
Forfeited, Weighted Average Exercise Price	11.16	7.96	11.04	9.31
Options outstanding at end of period, Weighted Average Exercise Price	6.59	5.79	6.59	5.79
Exercisable at end of period, Weighted Average Exercise Price	$ 5.98	$ 5.09	$ 5.98	$ 5.09
Aggregate Instrinsic Value [Abstract]
Options outstanding at beginning of period, Aggregate Intrinsic Value	$ 12,594	$ 17,674	$ 19,358	$ 17,494
Exercised, Aggregate Intrinsic Value	3,586	1,986	5,512	3,055
Forfeited, Aggregate Intrinsic Value	0	0	0	0
Options outstanding at end of period, Aggregate Intrinsic Value	8,791	16,371	8,791	16,371
Exercisable at end of period, Aggregate Intrinsic Value	$ 8,105	$ 16,122	$ 8,105	$ 16,122