STOCK PLANS AND SHARE BASED COMPENSATION (Performance-based Awards and Restricted Stock Units) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Performance Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance-based awards shares released as a percentage of target number, minimum	0.00%
Number of performance-based awards shares released as a percentage of target number, maximum	200.00%
Shares
Outstanding, shares at beginning of the period	150,000	121,000	52,000
Granted, shares	105,000	150,000	185,000
Vested, shares	(150,000)	(121,000)	(52,000)
Forfeited or canceled, shares	(1,000)	0	(64,000)
Outstanding, shares at ending of the period	104,000	150,000	121,000
Outstanding, weighted-average grant date fair value per share, beginning of period	$ 46.27	$ 35.06	$ 31.44
Granted, weighted-average grant date fair value per share	84.48	46.31	35.06
Vested, weighted-average grant date fair value per share	46.27	35.06	31.44
Forfeited or expired, weighted-average grant date fair value per share	85.01	0	35.06
Outstanding, weighted-average grant date fair value per share, end of period	$ 84.47	$ 46.27	$ 35.06
Outstanding, weighted-average remaining contractual term (in years)	0 years
Outstanding, aggregate intrinsic value	$ 9,701
Outstanding and expected to vest, shares	104,000
Outstanding and expected to vest, weighted-average remaining contractual term (in years)	0 years
Outstanding and expected to vest, aggregate intrinsic value	$ 9,701
Grant date fair value of awards released	$ 6,900	$ 4,200	$ 1,600
Long-Term Performance-Based Awards (PRSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance-based awards shares released as a percentage of target number, minimum	0.00%
Number of performance-based awards shares released as a percentage of target number, maximum	200.00%
Performance based period	3 years
Shares
Outstanding, shares at beginning of the period	301,000	287,000	426,000
Granted, shares	103,000	152,000	144,000
Vested, shares	(6,000)	0	(140,000)
Forfeited or canceled, shares	(15,000)	(138,000)	(143,000)
Outstanding, shares at ending of the period	383,000	301,000	287,000
Outstanding, weighted-average grant date fair value per share, beginning of period	$ 41.90	$ 32.03	$ 27.74
Granted, weighted-average grant date fair value per share	82.92	49.67	34.09
Vested, weighted-average grant date fair value per share	29.94	0	21.63
Forfeited or expired, weighted-average grant date fair value per share	40.05	29.95	31.50
Outstanding, weighted-average grant date fair value per share, end of period	$ 53.14	$ 41.90	$ 32.03
Outstanding, weighted-average remaining contractual term (in years)	11 months 1 day
Outstanding, aggregate intrinsic value	$ 35,537
Outstanding and expected to vest, shares	383,000
Outstanding and expected to vest, weighted-average remaining contractual term (in years)	11 months 1 day
Outstanding and expected to vest, aggregate intrinsic value	$ 35,537
Grant date fair value of awards released	$ 200		$ 3,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period	4 years
Shares
Outstanding, shares at beginning of the period	1,518,000	1,719,000	1,790,000
Granted, shares	271,000	439,000	582,000
Vested, shares	(546,000)	(599,000)	(603,000)
Forfeited or canceled, shares	(99,000)	(41,000)	(50,000)
Outstanding, shares at ending of the period	1,144,000	1,518,000	1,719,000
Outstanding, weighted-average grant date fair value per share, beginning of period	$ 35.51	$ 31.33	$ 29.10
Granted, weighted-average grant date fair value per share	83.79	44.82	34.90
Vested, weighted-average grant date fair value per share	35.03	30.25	28.10
Forfeited or expired, weighted-average grant date fair value per share	39.85	36.77	31.72
Outstanding, weighted-average grant date fair value per share, end of period	$ 46.81	$ 35.51	$ 31.33
Outstanding, weighted-average remaining contractual term (in years)	1 year 3 months
Outstanding, aggregate intrinsic value	$ 106,306
Outstanding and expected to vest, shares	1,081,000
Outstanding and expected to vest, weighted-average remaining contractual term (in years)	1 year 2 months 12 days
Outstanding and expected to vest, aggregate intrinsic value	$ 100,433
Grant date fair value of awards released	$ 19,100	$ 18,100	$ 16,900