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Financial Highlights - Schedule of Financial Highlights (Parenthetical) (Details) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Investment Company, Financial Highlights [Abstract] |  |  |  |  |  |  |  |  |  |
Incentive fee waived | 0.00% | 0.00% | (0.11%) | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00%
Expenses other than incentive fee | 10.40% | 8.90% | 10.10% | 8.50% | 7.60% | 6.90% | 8.10% | 8.70% | 8.10% | 7.80%
Incentive fee, net of incentive fee waiver | 1.60% | 6.50% | 1.70% | 2.70% | 3.10% | 2.90% | 3.60% | 2.60% | 2.20% | 3.20%
Total expenses | 12.00% | 15.40% | 11.80% | 11.20% | 10.70% | 9.80% | 11.70% | 11.30% | 10.30% | 11.00%
Total expenses, before base management fee waiver | 12.10% | 15.40% | 11.80% | 11.20% | 10.70% | 9.80% | 11.70% | 11.30% | 10.30% | 11.00%
Base management fee waiver | (0.10%) | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00%

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- Definition Percentage, after deduction of fee waiver and before deduction of incentive fee, of expense to average net assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 205 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=25866437&loc=d3e10342-115837 + Details
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