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Equity - Incentive and Share-Based Compensation (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2021
USD ($)
vesting_installment
shares
Sep. 30, 2021
USD ($)
shares
Sep. 30, 2020
USD ($)
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2021
USD ($)
$ / shares
shares
Sep. 30, 2020
USD ($)
May 16, 2019
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Retirement age (in years)       65 years 60 years 65 years    
Expected volatility rate look-back period (in years)           6 years    
Weighted-average per unit or share fair value (in USD per share) | $ / shares           $ 8.52    
Period of service, upon completion of which, grantee's LTIP unit and restricted stock awards will immediately vest (in years)           10 years    
Minimum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Age of grantee at which LTIP unit and restricted stock awards immediately vest (in years)           60 years    
Maximum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Age of grantee at which LTIP unit and restricted stock awards immediately vest (in years)           65 years    
Awards that meet age and service requirements for vesting                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Noncash share-based compensation expense recognized   $ 700 $ 400     $ 2,100 $ 2,300  
Unrecognized compensation expense   2,300       $ 2,300    
Unrecognized compensation expense, period for recognition (in years)           2 years 6 months    
Awards that do not meet age and service requirements for vesting                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Noncash share-based compensation expense recognized   4,700 $ 5,100     $ 13,300 $ 17,900  
Unrecognized compensation expense   $ 28,100       $ 28,100    
Unrecognized compensation expense, period for recognition (in years)           2 years 4 months 24 days    
Long-Term Incentive Plan Unit and Restricted Stock                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Fair value of share-based awards granted in period           $ 20,000    
Weighted-average per unit or share fair value (in USD per share) | $ / shares           $ 8.52    
Dividend rate (as a percent)           2.60%    
Risk-free interest rate, minimum (as a percent)           0.12%    
Risk free interest rate, maximum (as a percent)           0.32%    
Expected price volatility, minimum (as a percent)           36.00%    
Expected price volatility, maximum (as a percent)           53.00%    
Long-Term Incentive Plan Unit and Restricted Stock | Minimum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Expected term (in years)           2 years    
Long-Term Incentive Plan Unit and Restricted Stock | Maximum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Expected term (in years)           5 years 3 months 18 days    
Time based long-term incentive plan unit                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Threshold of continuous service for retirement eligibility (in years)           10 years    
Time based long-term incentive plan unit | Minimum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period (in years)           3 years    
Time based long-term incentive plan unit | Maximum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period (in years)           5 years    
Time based long-term incentive plan unit | Median                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period (in years)           4 years    
Time based long-term incentive plan unit | 2019 Plan Units                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period (in years) 4 years              
Number of vesting installments | vesting_installment 3              
Time based long-term incentive plan unit | Executive officer | 2019 Plan Units                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Granted (in shares) | shares 8,772              
Fair value of share-based awards granted in period $ 75              
Market based long-term incentive plan unit | August 2021 Awards Member                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period (in years) 3 years              
Market based long-term incentive plan unit | Minimum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period (in years)           3 years    
Market based long-term incentive plan unit | Maximum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Award vesting period (in years)           4 years    
Market based long-term incentive plan unit | 2019 Plan Units                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of vesting installments | vesting_installment 2              
Market based long-term incentive plan unit | Executive officer | 2019 Plan Units                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Granted (in shares) | shares 26,930              
Fair value of share-based awards granted in period $ 150              
2019 Plan                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares authorized under the plan (in shares) | shares   11,000,000       11,000,000   11,000,000
Number of shares that remain available for future issuance (in shares) | shares   7,700,000       7,700,000