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Share-Based Compensation Plan - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
May 19, 2021
shares
Feb. 18, 2021
USD ($)
$ / shares
shares
Feb. 12, 2020
shares
Jun. 30, 2021
USD ($)
$ / shares
shares
Jun. 30, 2021
USD ($)
class
$ / shares
shares
Dec. 31, 2020
$ / shares
shares
Share-Based Compensation Plan (Textual) [Abstract]            
Common shares of beneficial interest, par value (in usd per share) | $ / shares       $ 0.01 $ 0.01 $ 0.01
Number of additional shares authorized (in shares) 1,675,000          
Common shares available for issuance under the Plan (in shares)       1,812,875 1,812,875  
LTIP units, outstanding (in shares)       727,208 727,208 127,111
Restricted common shares            
Share-Based Compensation Plan (Textual) [Abstract]            
Compensation expense | $       $ 1.1 $ 1.9  
Awards granted (in shares)         410,838  
Awards vested (in shares)         81,591  
Performance-based shares            
Share-Based Compensation Plan (Textual) [Abstract]            
Compensation expense | $       1.3 $ 2.3  
Performance-based shares | February 18, 2021            
Share-Based Compensation Plan (Textual) [Abstract]            
Awards granted (in shares)   189,348        
Performance-based shares | Minimum | February 18, 2021            
Share-Based Compensation Plan (Textual) [Abstract]            
Shares able to be vested, percent   0.00%        
Performance-based shares | Maximum | February 18, 2021            
Share-Based Compensation Plan (Textual) [Abstract]            
Shares able to be vested, percent   200.00%        
LTIP units            
Share-Based Compensation Plan (Textual) [Abstract]            
Compensation expense | $       $ 0.7 $ 1.0  
Classes of LTIP units | class         2  
Awards vested (in shares)         127,111  
LTIP Class B units            
Share-Based Compensation Plan (Textual) [Abstract]            
Awards granted (in shares)   600,097 415,818      
Value of LTIP grants per unit (in usd per share) | $ / shares   $ 22.69        
Grant date fair value of LTIP unit awards | $   $ 13.6