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STOCK-BASED COMPENSATION - Compensation Expense (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Options |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |
Compensation expense | $ 227 | $ 860
Compensation expense, net of tax | 174 | 648
Grant date fair value of options vested | 2,421 | 7,565
Options | Selling Research And Development And Administrative Expenses |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |
Compensation expense | 185 | 743
Options | Cost of Sales |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |
Compensation expense | 42 | 117
Restricted Stock Units |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |
Compensation expense | 11,262 | 8,281
Fair value of units vested | 19,116 | 9,303
Intrinsic value of units vested | $ 25,699 | $ 11,475

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- Definition Aggregate intrinsic value of equity-based payment equity instruments, excluding stock (or unit) options, that vested during the reporting period as calculated by applying the disclosed pricing methodology. + References No definition available. + Details
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- Definition The total fair value of options vested during the reporting period. + References No definition available. + Details
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount, after tax, of expense for award under share-based payment arrangement. + References No definition available. + Details
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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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