XML 111 R92.htm IDEA: XBRL DOCUMENT
v3.24.1.1.u2

Commitment and Contingencies - Narrative (Details) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2024 USD ($) city | Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($)
Other Commitments [Line Items] |  |  |
Number of cities for leased offices | city | 27 |  |
Gain on remeasurement of lease liabilities | $ 106 | $ 2,709 | $ 0
Unfunded capital commitments | 115,700 | 88,700 |
Carried interest, contingent repayment obligations | 287,500 |  |
Legacy Funds |  |  |
Other Commitments [Line Items] |  |  |
Unfunded capital commitments | $ 67,800 | $ 50,600 |

X
- Definition Equity Method Investment, Carried Interest Allocations, Maximum Amount Subject To Contingent Repayment + References No definition available. + Details
Name: | step_EquityMethodInvestmentCarriedInterestAllocationsMaximumAmountSubjectToContingentRepayment
Namespace Prefix: | step_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Gain (Loss) On Remeasurement Of Lease Liabilities + References No definition available. + Details
Name: | step_GainLossOnRemeasurementOfLeaseLiabilities
Namespace Prefix: | step_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Lessee, Operating Lease, Number Of Cities + References No definition available. + Details
Name: | step_LesseeOperatingLeaseNumberOfCities
Namespace Prefix: | step_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482454/460-10-45-1 + Details
Name: | us-gaap_OffBalanceSheetCreditLossLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=step_LegacyFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |