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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, 2017 USD ($) $ / shares shares
Options [Abstract] |
Options outstanding, shares (in shares) | shares | 1,708,296
Options outstanding, weighted-average exercise price (in dollars per share) | $ 34.57
Options outstanding, weighted-average remaining life | 6 years 7 days
Options exercisable, shares (in shares) | shares | 1,015,823
Options exercisable, weighted-average exercise price (in dollars per share) | $ 29.57
Weighted-average remaining contractual term of outstanding stock options | 6 years 7 days
Weighted-average remaining contractual term of outstanding and exercisable stock options | 4 years 10 months 6 days
Aggregate intrinsic value of outstanding stock options | $ | $ 33.4
Aggregate intrinsic value of exercisable stock options | $ | $ 24.6
$0.00 - $18.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise price range, lower range limit (in dollars per share) | $ 0
Exercise price range, upper range limit (in dollars per share) | $ 18.00
Options [Abstract] |
Options outstanding, shares (in shares) | shares | 24,736
Options outstanding, weighted-average exercise price (in dollars per share) | $ 17.82
Options outstanding, weighted-average remaining life | 1 year 3 months 22 days
Options exercisable, shares (in shares) | shares | 24,736
Options exercisable, weighted-average exercise price (in dollars per share) | $ 17.82
$18.001 - $28.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Exercise price range, lower range limit (in dollars per share) | 18.001
Exercise price range, upper range limit (in dollars per share) | $ 28.00
Options [Abstract] |
Options outstanding, shares (in shares) | shares | 314,511
Options outstanding, weighted-average exercise price (in dollars per share) | $ 22.23
Options outstanding, weighted-average remaining life | 2 years 11 months 5 days
Options exercisable, shares (in shares) | shares | 314,511
Options exercisable, weighted-average exercise price (in dollars per share) | $ 22.23
$28.001 - $29.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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 | 171,083
Options outstanding, weighted-average exercise price (in dollars per share) | $ 28.78
Options outstanding, weighted-average remaining life | 4 years 2 months 19 days
Options exercisable, shares (in shares) | shares | 171,083
Options exercisable, weighted-average exercise price (in dollars per share) | $ 28.78
$29.001 - $30.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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 | 228,668
Options outstanding, weighted-average exercise price (in dollars per share) | $ 29.79
Options outstanding, weighted-average remaining life | 5 years 2 months 12 days
Options exercisable, shares (in shares) | shares | 176,843
Options exercisable, weighted-average exercise price (in dollars per share) | $ 29.79
$30.001 - $40.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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 | 771,781
Options outstanding, weighted-average exercise price (in dollars per share) | $ 37.09
Options outstanding, weighted-average remaining life | 7 years 3 months 11 days
Options exercisable, shares (in shares) | shares | 317,005
Options exercisable, weighted-average exercise price (in dollars per share) | $ 37.06
$40.001 - $60.00 [Member] |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
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 | 197,517
Options outstanding, weighted-average exercise price (in dollars per share) | $ 57.02
Options outstanding, weighted-average remaining life | 9 years 1 month 20 days
Options exercisable, shares (in shares) | shares | 11,645
Options exercisable, weighted-average exercise price (in dollars per share) | $ 57.12

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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