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STOCK-BASED COMPENSATION PLANS - Employee Stock Purchase Plan (Details) - ESPP	9 Months Ended
	Sep. 30, 2020 shares
Stock-based compensation
Offering period (in months)	6 months
Purchase price of common stock (percentage)	85.00%
Maximum number of shares purchasable per employee (in shares)	500

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- Definition

Share-Based Compensation By Share-Based Payment Award, Offering Period

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

The highest quantity of shares an employee can purchase under the plan per period.

+ 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
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

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