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STOCK-BASED COMPENSATION PLANS - Summary of Stock Options Outstanding (Details) $ / shares in Units, $ in Millions | 12 Months Ended
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Dec. 31, 2020 USD ($) $ / shares shares
Options [Abstract] |
Options outstanding, shares (in shares) | shares | 1,542,259
Options outstanding, weighted-average exercise price (in dollars per share) | $ 45.49
Options outstanding, weighted-average remaining life | 5 years 11 months 8 days
Options exercisable, shares (in shares) | shares | 978,833
Options exercisable, weighted-average exercise price (in dollars per share) | $ 40.77
Weighted-average remaining contractual term of outstanding stock options | 5 years 11 months 8 days
Weighted-average remaining contractual term of outstanding and exercisable stock options | 4 years 8 months 26 days
Aggregate intrinsic value of outstanding stock options | $ | $ 25.9
Aggregate intrinsic value of exercisable stock options | $ | $ 21.1
$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 | 50,619
Options outstanding, weighted-average exercise price (in dollars per share) | $ 23.95
Options outstanding, weighted-average remaining life | 4 years 9 months
Options exercisable, shares (in shares) | shares | 50,619
Options exercisable, weighted-average exercise price (in dollars per share) | $ 23.95
$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 | 52,014
Options outstanding, weighted-average exercise price (in dollars per share) | $ 28.78
Options outstanding, weighted-average remaining life | 1 year 2 months 19 days
Options exercisable, shares (in shares) | shares | 52,014
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 | 104,045
Options outstanding, weighted-average exercise price (in dollars per share) | $ 29.79
Options outstanding, weighted-average remaining life | 2 years 2 months 15 days
Options exercisable, shares (in shares) | shares | 104,045
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 | 536,831
Options outstanding, weighted-average exercise price (in dollars per share) | $ 37.12
Options outstanding, weighted-average remaining life | 4 years 4 months 13 days
Options exercisable, shares (in shares) | shares | 493,761
Options exercisable, weighted-average exercise price (in dollars per share) | $ 37.04
$40.001 - $60.00 |
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 | 798,750
Options outstanding, weighted-average exercise price (in dollars per share) | $ 55.61
Options outstanding, weighted-average remaining life | 7 years 10 months 9 days
Options exercisable, shares (in shares) | shares | 278,394
Options exercisable, weighted-average exercise price (in dollars per share) | $ 56.78

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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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