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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, 2015 USD ($) $ / shares shares
Options [Abstract] |
Options outstanding, shares (in shares) | shares | 1,969,301
Options outstanding, weighted-average exercise price (in dollars per share) | $ 28.15
Options outstanding, weighted-average remaining life | 6 years 11 days
Options exercisable, shares (in shares) | shares | 1,200,830
Options exercisable, weighted-average exercise price (in dollars per share) | $ 24.79
Weighted-average remaining contractual term of outstanding stock options | 6 years 11 days
Weighted-average remaining contractual term of outstanding and exercisable stock options | 4 years 9 months 25 days
Aggregate intrinsic value of outstanding stock options | $ | $ 23.2
Aggregate intrinsic value of exercisable stock options | $ | $ 18.2
$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 | 99,270
Options outstanding, weighted-average exercise price (in dollars per share) | $ 17.71
Options outstanding, weighted-average remaining life | 3 years 2 months 23 days
Options exercisable, shares (in shares) | shares | 99,270
Options exercisable, weighted-average exercise price (in dollars per share) | $ 17.71
$18.001 - $23.00 [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) | $ 23.00
Options [Abstract] |
Options outstanding, shares (in shares) | shares | 450,540
Options outstanding, weighted-average exercise price (in dollars per share) | $ 19.57
Options outstanding, weighted-average remaining life | 2 years 9 months 11 days
Options exercisable, shares (in shares) | shares | 449,926
Options exercisable, weighted-average exercise price (in dollars per share) | $ 19.57
$23.001 - $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) | 23.001
Exercise price range, upper range limit (in dollars per share) | $ 28.00
Options [Abstract] |
Options outstanding, shares (in shares) | shares | 261,642
Options outstanding, weighted-average exercise price (in dollars per share) | $ 26.14
Options outstanding, weighted-average remaining life | 5 years 2 months 8 days
Options exercisable, shares (in shares) | shares | 223,428
Options exercisable, weighted-average exercise price (in dollars per share) | $ 25.93
$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 | 275,173
Options outstanding, weighted-average exercise price (in dollars per share) | $ 28.78
Options outstanding, weighted-average remaining life | 6 years 2 months 19 days
Options exercisable, shares (in shares) | shares | 171,759
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 | 317,341
Options outstanding, weighted-average exercise price (in dollars per share) | $ 29.79
Options outstanding, weighted-average remaining life | 7 years 2 months 16 days
Options exercisable, shares (in shares) | shares | 145,513
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 | 565,335
Options outstanding, weighted-average exercise price (in dollars per share) | $ 36.52
Options outstanding, weighted-average remaining life | 8 years 8 months 23 days
Options exercisable, shares (in shares) | shares | 110,934
Options exercisable, weighted-average exercise price (in dollars per share) | $ 37.30

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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=6415400&loc=d3e5070-113901 + Details
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