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SUMMARY OF RESTRICTED STOCK UNITS (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Unvested (in shares)	487,897		487,897		363,729
Granted (in shares)	0	0	211,450	175,544
Vested (in shares)			(80,320)
Forfeited (in shares)			(6,962)
Unvested, Weighted Average Fair Value (in dollars per share)	$ 53.32		$ 53.32		$ 60.00
Granted, Weighted Average Fair Value (in dollars per share)	$ 0	$ 0	48.32	$ 54.64
Vested in Period, Weighted Average Fair Value (in dollars per share)			69.71
Forfeited in Period, Weighted Average Fair Value (in dollars per share)			$ 61.27
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Unvested (in shares)	307,614		307,614		195,305
Granted (in shares)	0	0	158,756	126,874
Vested (in shares)			(25,909)
Forfeited (in shares)			(20,538)
Unvested, Weighted Average Fair Value (in dollars per share)	$ 52.60		$ 52.60		$ 60.24
Granted, Weighted Average Fair Value (in dollars per share)	$ 0	$ 0	48.67	$ 54.64
Vested in Period, Weighted Average Fair Value (in dollars per share)			78.04
Forfeited in Period, Weighted Average Fair Value (in dollars per share)			$ 71.47

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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