SHAREHOLDERS’ EQUITY AND SHARE-BASED COMPENSATION - RSU (Details) - Restricted Stock And Restricted Stock Units	9 Months Ended
Sep. 30, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Outstanding at the beginning of period (in shares)	878,521
Granted (in shares)	363,412
Issued (in shares)	(234,579)
Forfeited/canceled (in shares)	(352,799)
Outstanding at the end of period (in shares)	654,555

Number of shares under non-option equity instrument agreements that were either cancelled or expired.

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- Definition

Net number of non-option equity instruments granted to participants.

+ References

+ Details

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- Definition

Other increase (decrease) in number of shares reserved for issuance under non-option equity instrument agreements that is not separately disclosed.

+ References

No definition available.

+ Details

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- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ 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 (c)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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