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STOCK BASED AND OTHER COMPENSATION PLANS - Stock Based Compensation Plans Summary (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized equity based compensation expense	$ 14,026	$ 11,292
Stock Options Exercised	(270)
Bonus Expense	30	6,785
Total	15,924	18,879
Phantom Equity Investment Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognized equity based compensation expense	$ 2,138	$ 802

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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