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SHARE-BASED COMPENSATION - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended
--- | --- | ---
Jan. 01, 2021 | Mar. 31, 2021 | Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation expense |  | $ 810 | $ 465
2021 LTIP Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Term of award |  | 3 years |
2021 LTIP Awards | Restricted Stock Units (RSUs) | Tranche One |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted shares vesting percentage | 33.33% |  |
2021 LTIP Awards | Restricted Stock Units (RSUs) | Tranche Two |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted shares vesting percentage | 33.33% |  |
2021 LTIP Awards | Restricted Stock Units (RSUs) | Tranche Three |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted shares vesting percentage | 33.33% |  |
2021 LTIP Awards | Performance Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Performance RSUs eligible to be earned (in shares) | 38,448 |  |
Percentage of performance RSUs eligible to be earned over granted shares | 2 |  |
Expected volatility |  | 20.63% |
Risk-free rate |  | 0.17% |
Expected term |  | 3 years |
Exercise price (in dollars per share) |  | $ 70.64 |
2021 LTIP Awards | Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expected volatility |  | 21.08% |
Risk-free rate |  | 0.65% |
Expected term |  | 6 years 3 months |
Exercise price (in dollars per share) |  | $ 70.64 |
2021 LTIP Awards | Stock Options | Tranche One |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted shares vesting percentage | 25.00% |  |
2021 LTIP Awards | Stock Options | Tranche Four |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted shares vesting percentage | 25.00% |  |
2021 LTIP Awards | Stock Options | Tranche Two |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted shares vesting percentage | 25.00% |  |
2021 LTIP Awards | Stock Options | Tranche Three |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Restricted shares vesting percentage | 25.00% |  |
2021 LTIP Awards | Employees |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Options granted (in shares) | 43,629 |  |
2021 LTIP Awards | Employees | Restricted Stock Units (RSUs) |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Awards granted (in shares) | 6,410 |  |
2021 LTIP Awards | Employees | Performance Shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Awards granted (in shares) | 19,224 |  |
2021 LTIP Awards | Employees | Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Fair value of stock options (in dollars per share) | $ 7.383 |  |
2015 Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares (in shares) |  | 425,000 |
Term of award |  | 10 years |

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- Definition Term of award in which the equity-based award remains in effect, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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