STOCK-BASED COMPENSATION - Summary of Estimated Vesting of Performance Share Units (Details) - Performance Share Units - shares		Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)		108,323	84,478
2021 | Shares probable to be issued
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)	[1]	63,523
2021 | Shares not subject to the achievement of minimum performance thresholds
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)	[1]	28,198
2021 | Shares that could be issued if maximum performance thresholds are met
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)	[1]	63,523
2020 | Shares probable to be issued
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)		11,752
2020 | Shares not subject to the achievement of minimum performance thresholds
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)		0
2020 | Shares that could be issued if maximum performance thresholds are met
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)		18,080
2019 | Shares probable to be issued
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)		33,048
2019 | Shares not subject to the achievement of minimum performance thresholds
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)		33,048
2019 | Shares that could be issued if maximum performance thresholds are met
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested units (in shares)		61,669

[1] Excludes performance share units awarded during the year ended December 31, 2021 for which the grant date under ASC 718 was not established as disclosed above.