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LONG-TERM INCENTIVE EMPLOYEE COMPENSATION (Tables) | 9 Months Ended
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Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Long-Term Incentive Employee Compensation Costs | The following table provides the components of LTIP costs for the three and nine months ended September 30, 2017 and 2016.
| Three Months |  | Nine Months
For the Periods Ended September 30 | 2017 |  | 2016 |  | 2017 |  | 2016
Equity based awards | $ | 5.2 |  |  | $ | 3.2 |  |  | $ | 12.5 |  |  | $ | 9.1 |
Liability-based awards | 0.8 |  |  | 0.4 |  |  | 1.7 |  |  | 1.2 |
Total share-based compensation expense | $ | 6.0 |  |  | $ | 3.6 |  |  | $ | 14.2 |  |  | $ | 10.3 |
Summary of Long-Term Incentive Plan Award Grants during year |
| # of Awards Granted | Weighted Average Grant Date Fair Value Per Share
Restricted stock units (RSUs) | 0.4 |  | $ | 41.86 |  |
Performance stock units (PSUs) | 0.1 |  | $ | 44.87 |  |

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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