Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Mar. 31, 2025 |
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| Related Party Transaction [Line Items] | ||
| Due from affiliates | $ 113,150 | $ 92,723 |
| Due to affiliates | 362,833 | 331,821 |
| Amounts receivable from StepStone Funds | ||
| Related Party Transaction [Line Items] | ||
| Due from affiliates | 58,257 | 65,765 |
| Amounts receivable from employees | ||
| Related Party Transaction [Line Items] | ||
| Due from affiliates | 39,558 | 12,919 |
| Amounts receivable from loans | ||
| Related Party Transaction [Line Items] | ||
| Due from affiliates | 15,335 | 14,039 |
| Amounts payable to non-controlling interest holders in connection with Tax Receivable Agreements | ||
| Related Party Transaction [Line Items] | ||
| Due to affiliates | 344,210 | 313,749 |
| Amounts payable to StepStone Funds | ||
| Related Party Transaction [Line Items] | ||
| Due to affiliates | $ 18,623 | $ 18,072 |
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- Definition Amount of obligations incurred and payable classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount due from parties in nontrade transactions, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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