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Restricted Unit Awards - Additional Information (Details) - Restricted Unit Awards [Member] - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested RUAs granted	$ 1,300,000		$ 1,300,000
Remaining compensation expense expected to be recognized over a weighted-average period			9 months 18 days
Intrinsic value of unvested RUAs			$ 2,900,000
General and Administrative Expenses [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense	$ 565,000	$ 604,000	$ 1,500,000	$ 1,500,000
2015 Equity Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSU available for future issuance	292,000		292,000
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		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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