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STOCK-BASED COMPENSATION AND EQUITY - Total Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Pre-tax stock-based compensation expense | $ 1,864 | $ 1,700 | $ 5,284 | $ 4,179
Less: income tax effect | (410) | (374) | (1,162) | (919)
Net stock-based compensation expense | 1,454 | 1,326 | 4,122 | 3,260
Unrecognized compensation cost related to non-vested stock-based compensation arrangements | 12,000 |  | $ 12,000 |
Period for recognition for which unrecognized compensation costs are expected to be recognized |  |  | 2 years |
Costs of sales |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Pre-tax stock-based compensation expense | 274 | 311 | $ 851 | 793
Operating expenses |  |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |  |
Pre-tax stock-based compensation expense | $ 1,590 | $ 1,389 | $ 4,433 | $ 3,386

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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