EQUITY BASED COMPENSATION - Assumptions (Details) - $ / shares	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Assumptions for equity options granted:
Underlying Equity	$ 20.00	$ 6.08
Strike Price	$ 20.00
Dividend Yield (%)	0.00%	0.00%
Risk free rate(%)		0.86%
Volatility (%)		63.00%
Expected Term (Years)		5 years
Minimum
Assumptions for equity options granted:
Strike Price		$ 14.33
Risk free rate(%)	2.00%
Volatility (%)	46.60%
Expected Term (Years)	4 years
Maximum
Assumptions for equity options granted:
Strike Price		$ 20.61
Risk free rate(%)	2.70%
Volatility (%)	46.80%
Expected Term (Years)	6 years

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- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

No definition available.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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