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Restricted Unit Awards - Additional Information (Details) - Restricted Unit Awards [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense related to unvested RUAs granted	$ 865,000.0
Remaining compensation expense expected to be recognized over a weighted-average period	1 year 3 months 18 days
Intrinsic value of unvested RUAs	$ 1.0
General and Administrative Expenses [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense	$ 1.9	$ 2.0	$ 1.5
Greystone Manager [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Approved grant of restricted units and other awards to employees	1,000,000
2015 Equity Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSU available for future issuance	312,000
2015 Equity Incentive Plan [Member] | Greystone Manager [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Approved grant of restricted units and other awards to employees	1,000,000
RUAs granted with vesting range	3 years
2015 Equity Incentive Plan [Member] | Greystone Manager [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RUAs granted with vesting range	3 months

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