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Secured Line of Credit - Additional Information (Details) | 1 Months Ended | 6 Months Ended |
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Jul. 31, 2023 USD ($) Extension | Aug. 31, 2021 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($)
Bankers Trust Non-operating [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Line of credit facility maximum borrowing capacity |  | $ 50,000,000.0 |  |  |
Secured Line Of Credit Facility [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Line of credit facility maximum borrowing capacity |  |  |  | $ 90,000,000 | $ 90,000,000
Minimum liquidity |  |  | $ 5,000,000.0 |  |
Minimum consolidated tangible net worth |  |  | $ 100,000,000.0 |  |
Percentage of minimum consolidated net worth decline from immediately preceding quarter |  |  | 20.00% |  |
Percentage of minimum consolidated net worth decline from date at the end of two consecutive calendar quarters ending immediately thereafter |  |  | 35.00% |  |
Debt instrument, covenant compliance |  |  |  | The Partnership is subject to various affirmative and negative covenants under the Secured Credit Agreement that, among others, require the Partnership to maintain a minimum liquidity of not less than $5.0 million, maintain a minimum consolidated tangible net worth of $100.0 million, and to notify BankUnited if the Partnership’s consolidated net worth declines by (a) more than 20% from the immediately preceding quarter, or (b) more than 35% from the date at the end of two consecutive calendar quarters ending immediately thereafter. The Partnership was in compliance with all covenants as of June 30, 2023. |
Secured Line Of Credit Facility [Member] | Subsequent Event [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Minimum consolidated tangible net worth | $ 200,000,000.0 |  |  |  |
Percentage of modified the borrowing base advance rate | 35.00% |  |  |  |
Increase in the maximum commitment | $ 60.0 |  |  |  |
Increased the threshold percentage, modified the interest rate | 3.50% |  |  |  |
Secured Line Of Credit Facility [Member] | BankUnited, N.A. and Bankers Trust Company [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Line of credit facility maximum borrowing capacity |  |  | $ 40,000,000.0 |  |
Aggregate available commitment cannot exceed borrowing base calculation equal to multiplied by the aggregate value of pool of eligible encumbered assets percentage |  |  | 40.00% |  |
Percentage of partnership's capital contributions to equity investments |  |  | 100.00% |  |
Secured Line Of Credit Facility [Member] | BankUnited, N.A [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Minimum amount required to maintain security interest in bank account |  |  | $ 5,000,000.0 |  |
Secured Line Of Credit Facility [Member] | BankUnited, N.A [Member] | Subsequent Event [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Minimum liquidity | $ 5,000,000.0 |  |  |  |
Debt instrument number of extensions | Extension | 2 |  |  |  |
Debt instrument extended maturity period | 1 year |  |  |  |
Secured Line Of Credit Facility [Member] | Bankers Trust Non-operating [Member] |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt instrument, payment terms |  |  |  | Advances on the Acquisition LOC are due on the 270th day following the advance date but may be extended for up to three additional 90-day periods |
Required percentage of principal payment for first extension |  | 5.00% |  |  |
Required percentage of principal payment for second extension |  | 10.00% |  |  |
Required percentage of principal payment for third extension |  | 20.00% |  |  |

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