STOCK PLANS (Summary of Stock Options by Exercise Price Range) (Details) - Stock options	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Information about awards outstanding
Weighted Average Remaining Life (in years)	5 years 10 months 24 days
Outstanding
Options Outstanding, Number of Stock Options (in shares) | shares	1,318,290
Exercisable
Options Exercisable, Number of Stock Options (in shares) | shares	943,715
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	4 years 10 months 24 days
Exercise Price Range 1
Information about awards outstanding
Exercise price, high end of range (in dollars per share)	$ 49.99
Weighted Average Remaining Life (in years)	2 years 3 months 18 days
Outstanding
Options Outstanding, Number of Stock Options (in shares) | shares	219,050
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 42.31
Exercisable
Options Exercisable, Number of Stock Options (in shares) | shares	219,050
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 42.31
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	2 years 3 months 18 days
Exercise Price Range 2
Information about awards outstanding
Exercise price, low end of range (in dollars per share)	$ 50.00
Exercise price, high end of range (in dollars per share)	$ 59.99
Weighted Average Remaining Life (in years)	6 years 1 month 6 days
Outstanding
Options Outstanding, Number of Stock Options (in shares) | shares	192,609
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 58.11
Exercisable
Options Exercisable, Number of Stock Options (in shares) | shares	192,609
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 58.11
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	6 years 1 month 6 days
Exercise Price Range 3
Information about awards outstanding
Exercise price, low end of range (in dollars per share)	$ 60.00
Weighted Average Remaining Life (in years)	6 years 9 months 18 days
Outstanding
Options Outstanding, Number of Stock Options (in shares) | shares	906,631
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 81.04
Exercisable
Options Exercisable, Number of Stock Options (in shares) | shares	532,056
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 75.67
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	5 years 6 months