Annual report pursuant to Section 13 and 15(d)

EQUITY-BASED AWARDS - Time-Based LTIP Units Activity (Details)

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EQUITY-BASED AWARDS - Time-Based LTIP Units Activity (Details) - Time-Based LTIP Unit - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Number of LTIP units      
Unvested units at beginning of year (in shares) 170,265 181,937 223,812
Granted (in shares) 98,376 111,898 101,167
Vested (in shares) (105,561) (115,935) (138,028)
Forfeited (in shares) (4,104) (7,635) (5,014)
Unvested units at end of year (in shares) 158,976 170,265 181,937
Weighted Average Grant-Date Fair Value      
Unvested at beginning of year (in dollars per share) $ 28.93 $ 26.55 $ 23.54
Granted (in dollars per share) 41.02 30.14 27.80
Vested (in dollars per share) 27.61 26.52 22.59
Forfeited (in dollars per share) 41.84 26.72 26.25
Unvested at end of year (in dollars per share) $ 36.95 $ 28.93 $ 26.55