SHARE BASED PAYMENTS (Remaining unvested target units expected to vest) (Details)	Sep. 30, 2020 shares
2020
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	539,262
2021
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	1,085,519
2022
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	8,170
2023
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	3,531
LTIP Unit Awards | 2020
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	535,478
LTIP Unit Awards | 2021
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	898,126
LTIP Unit Awards | 2022
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	0
LTIP Unit Awards | 2023
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	0
Restricted Share Awards | 2020
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	3,784
Restricted Share Awards | 2021
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	187,393
Restricted Share Awards | 2022
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	8,170
Restricted Share Awards | 2023
Share-based Compensation Arrangement by Share-based Payment Award
Remaining unvested target units, expected to vest (in units)	3,531