STOCK-BASED COMPENSATION PLANS, Summary of Stock Options Outstanding (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) $ / shares shares
Options [Abstract]
Options outstanding, shares (in shares) | shares	1,502,994
Options outstanding, weighted-average exercise price (in dollars per share)	$ 42.82
Options outstanding, weighted-average remaining life	5 years 11 months 4 days
Options exercisable, shares (in shares) | shares	929,120
Options exercisable, weighted-average exercise price (in dollars per share)	$ 36.73
Weighted-average remaining contractual term of outstanding stock options	5 years 11 months 4 days
Weighted-average remaining contractual term of outstanding and exercisable stock options	4 years 9 months 7 days
Aggregate intrinsic value of outstanding stock options | $	$ 42.3
Aggregate intrinsic value of exercisable stock options | $	$ 31.8
$0.00 - $28.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Exercise price range, lower range limit (in dollars per share)	$ 0.00
Exercise price range, upper range limit (in dollars per share)	$ 28.00
Options [Abstract]
Options outstanding, shares (in shares) | shares	96,324
Options outstanding, weighted-average exercise price (in dollars per share)	$ 79.25
Options outstanding, weighted-average remaining life	3 years 4 months 9 days
Options exercisable, shares (in shares) | shares	96,324
Options exercisable, weighted-average exercise price (in dollars per share)	$ 24.26
$28.001 - $29.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Exercise price range, lower range limit (in dollars per share)	28.001
Exercise price range, upper range limit (in dollars per share)	$ 29.00
Options [Abstract]
Options outstanding, shares (in shares) | shares	97,492
Options outstanding, weighted-average exercise price (in dollars per share)	$ 28.78
Options outstanding, weighted-average remaining life	2 years 2 months 19 days
Options exercisable, shares (in shares) | shares	97,492
Options exercisable, weighted-average exercise price (in dollars per share)	$ 28.78
$29.001 - $30.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Exercise price range, lower range limit (in dollars per share)	29.001
Exercise price range, upper range limit (in dollars per share)	$ 30.00
Options [Abstract]
Options outstanding, shares (in shares) | shares	141,501
Options outstanding, weighted-average exercise price (in dollars per share)	$ 29.79
Options outstanding, weighted-average remaining life	3 years 2 months 15 days
Options exercisable, shares (in shares) | shares	141,501
Options exercisable, weighted-average exercise price (in dollars per share)	$ 29.79
$30.001 - $40.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Exercise price range, lower range limit (in dollars per share)	30.001
Exercise price range, upper range limit (in dollars per share)	$ 40.00
Options [Abstract]
Options outstanding, shares (in shares) | shares	594,156
Options outstanding, weighted-average exercise price (in dollars per share)	$ 37.09
Options outstanding, weighted-average remaining life	5 years 4 months 17 days
Options exercisable, shares (in shares) | shares	453,418
Options exercisable, weighted-average exercise price (in dollars per share)	$ 37.05
$40.001 - $60.00 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Exercise price range, lower range limit (in dollars per share)	40.001
Exercise price range, upper range limit (in dollars per share)	$ 60.00
Options [Abstract]
Options outstanding, shares (in shares) | shares	573,521
Options outstanding, weighted-average exercise price (in dollars per share)	$ 57.47
Options outstanding, weighted-average remaining life	8 years 2 months 26 days
Options exercisable, shares (in shares) | shares	140,385
Options exercisable, weighted-average exercise price (in dollars per share)	$ 56.76