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STOCK-BASED COMPENSATION - Fair value (Details) - USD ($) | 9 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
Restricted Stock |  |
Stock-based compensation |  |
Fair value, shares vested | $ 4,431,000 | $ 3,818,000

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- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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 No definition available. + Details
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- Details
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