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EARNINGS PER SHARE - NARRATIVE (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 shares | Jun. 30, 2020 shares | Jun. 30, 2021 shares | Jun. 30, 2020 shares
STOCK-BASED COMPENSATION |  |  |  |
Antidilutive securities excluded from EPS calculation (in shares) | 747,678 | 715,639 | 777,564 | 407,996
LTIP | Minimum | Performance stock units |  |  |  |
STOCK-BASED COMPENSATION |  |  |  |
Ratio at which award holders get common stock of the company |  |  | 0 |
LTIP | Maximum | Performance stock units |  |  |  |
STOCK-BASED COMPENSATION |  |  |  |
Ratio at which award holders get common stock of the company |  |  | 2 |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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