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Share Incentive and Other Compensation - Additional Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unit based compensation | $ 3,820,000 | $ 4,511,000 |
Trustee fees | 400,000 | 400,000 |
Total unrecognized compensation cost related to nonvested awards | $ 22,800,000 |  |
Weighted-average period over which cost is expected to be recognized | 1 year 8 months 12 days |  |
Fund V |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of promote awarded as share based compensation award | 10.90% |  |
Performance Period Ending December 31, 2021 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period | 3 years |  |
LTIP Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total fair value of shares that vested | $ 6,500,000 |  | $ 7,500,000
LTIP Units | Trustee |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares issued during period, share-based compensation, net of forfeitures | 0 |  |
LTIP Units | Performance Period Ending December 31, 2021 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period | 3 years |  |
Restricted shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total fair value of shares that vested | $ 200,000 |  | 800,000
LTIP Units and Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Total value of restricted shares and LTIP units as of the grant date | $ 13,000,000.0 |  | $ 12,600,000
Weighted average grant date fair value, grants (in dollars per share) | $ 21.15 |  | $ 19.51
LTIP Units and Restricted Stock | General and Administrative Expense |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unit based compensation | $ 1,400,000 | 2,700,000 |
LTIP Units and Restricted Stock | Performance Period Ending December 31, 2021 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting period | 3 years |  |
LTIP Units and Restricted Stock | Performance Fails To Achieve, Earned Performance-Based Shares Vest At End Of Performance Period |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting percentage | 60.00% |  |
LTIP Units and Restricted Stock | Performance Fails To Achieve |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting percentage | 40.00% |  |
Award vesting period | 2 years |  |
LTIP Units and Restricted Stock | Minimum | TSR percentile falls between the 25th percentile and the 50th percentile |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting percentage | 50.00% |  |
LTIP Units and Restricted Stock | Minimum | TSR percentile falls between the 50th percentile and 75th percentile |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting percentage | 100.00% |  |
LTIP Units and Restricted Stock | Maximum | TSR percentile falls between the 25th percentile and the 50th percentile |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting percentage | 100.00% |  |
LTIP Units and Restricted Stock | Maximum | TSR percentile falls between the 50th percentile and 75th percentile |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting percentage | 200.00% |  |
Employee Benefit Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense | $ 100,000 | $ 100,000 |
Share Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares authorized | 1,542,818 |  |
Share Incentive Plan | LTIP Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares issued during period, share-based compensation, net of forfeitures | 600,672 |  | 636,646
Share Incentive Plan | Restricted shares |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares issued during period, share-based compensation, net of forfeitures | 13,178 |  | 11,244
Performance Shares2020 Member |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Performance period |  | 3 years |
Performance Shares2021 Member |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Performance period | 3 years |  |
Volatility rate | 49.00% | 48.00% |
Risk-free interest rates | 1.70% | 0.20% |
Long Term Investment Alignment Program |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Max percentage of future fund III promote that may be awarded to senior executives | 25.00% |  |
Long Term Investment Alignment Program | Fund III |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of promote awarded as share based compensation award | 25.00% |  |
Compensation expense | $ 400,000 |  |
Long Term Investment Alignment Program | Fund IV |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of promote awarded as share based compensation award | 23.10% |  |
Awards in connection with fund to have intrinsic value | $ 0 |  | $ 0
Compensation expense |  |  | $ 0
Long Term Investment Alignment Program | Fund V |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation expense | $ 100,000 |  |

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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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