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EARNINGS PER SHARE - Narrative (Details) | 3 Months Ended
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Mar. 31, 2021 shares | Mar. 31, 2020 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Ratio of units exchanged for shares | 1 |
Performance Shares and Restricted Stock Units |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Antidilutive securities excluded (in shares) | 46,218 | 37,822
Preferred Units |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Antidilutive securities excluded (in shares) | 228,000 | 228,000
Restricted Stock Units (RSUs) |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Antidilutive securities excluded (in shares) | 19,000 | 16,000
Stock Options |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Antidilutive securities excluded (in shares) | 43,629 |

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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=6371337&loc=d3e3550-109257 + Details
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