STOCK BASED AND DEFERRED COMPENSATION - Summary of Additional Information Regarding Stock Plan (Details) - USD ($) $ in Thousands |
9 Months Ended | 12 Months Ended | ||
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Sep. 30, 2021 |
Dec. 31, 2020 |
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| Summary of stock based compensation agreements | ||||
| Unrecognized stock-based compensation cost | $ 29,890 | $ 22,687 | ||
| Weighted average years expense recognition period | 2 years 7 days | 2 years 3 days | ||
| Total stock-based awards outstanding (in shares) | [1] | 910,557 | 1,098,545 | |
| Payout percentage | 100.00% | |||
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- Definition Share based compensation arrangement by share based payment award number of shares outstanding. No definition available.
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- Definition Share Based Compensation Arrangement, Payout Percentage No definition available.
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- References No definition available.
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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