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EMPLOYEE STOCK COMPENSATION - Unrecognized Stock-based Compensation Expense (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Expense	$ 9,091
Weighted-Average Remaining Expected Recognition Period	2 years 2 months 12 days
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Expense	$ 4
Weighted-Average Remaining Expected Recognition Period	6 months
Restricted stock awards and restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Expense	$ 9,087
Weighted-Average Remaining Expected Recognition Period	2 years 2 months 12 days

X

- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

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+ References

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