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CAPITAL STOCK AND STOCK AWARD PLANS - Narrative (Details) $ / shares in Units, $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
May 09, 2019 shares | Dec. 31, 2019 USD ($) vote $ / shares shares | Dec. 31, 2014 | Dec. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Preferred stock, authorized (in shares) |  | 20,000,000 |  | 20,000,000
Preferred stock, par value (in dollars per share) | $ / shares |  | $ 0.10 |  | $ 0.10
Preferred stock, outstanding (in shares) |  | 0 |  | 0
Common stock, authorized (in shares) |  | 480,000,000 |  | 480,000,000
Common stock, par value (in dollars per share) | $ / shares |  | $ 0.10 |  | $ 0.10
Entitled vote for each share of common stock (vote) | vote |  | 1 |  |
Increase in number of shares authorized for award (in shares) | 4,000,000 |  |  |
Maximum number of shares that can be granted under stock plan (in shares) | 17,041,803 |  |  |
Shares available for stock awards (in shares) |  | 5,300,634 |  |
Unrecognized compensation expense related to stock options | $ |  | $ 40.4 |  |
Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Antidilutive securities excluded from computation of earnings per share (in shares) |  | 3,348,501 |  |
Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock award vesting period (in years) |  |  | 5 years |
Performance Based Restricted Shares and Restricted Stock Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock award vesting period (in years) |  | 5 years |  |
Restricted Shares and Restricted Stock Units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Unrecognized compensation expense related to stock awards | $ |  | $ 99.3 |  |
Restricted Shares and Restricted Stock Units | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted shares and restricted stock unit grants, discount for post-vesting holding restrictions (percent) |  | 12.00% |  |
Restricted Shares and Restricted Stock Units | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted shares and restricted stock unit grants, discount for post-vesting holding restrictions (percent) |  | 22.00% |  |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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