XML 52 R45.htm IDEA: XBRL DOCUMENT
v3.25.1

Non-controlling Interests - Summary of Ownership of the LLC Units (Details) | 3 Months Ended
--- | ---
Mar. 31, 2025 shares
Noncontrolling Interest [Line Items] |  |
Ownership, Balances as of December 31, 2024 | 236,510,211 |
Ownership, Vesting of LLC Units | 62,504 |
Ownership, Issuance of LLC Units in connection with equity-based compensation plans | 1,819,189 |
Ownership, Balances as of March 31, 2025 | 238,391,904 |
Ownership Percentage, Balances as of December 31, 2024 | 100.00% |
Ownership Percentage, Balances as of March 31, 2025 | 100.00% |
OneStream, Inc. |  |
Noncontrolling Interest [Line Items] |  |
Ownership, Balances as of December 31, 2024 | 173,652,398 |
Ownership, Exchange of Class C common stock | 598,404 |
Ownership, Issuance of LLC Units in connection with equity-based compensation plans | 1,819,189 |
Ownership, Balances as of March 31, 2025 | 176,069,991 |
Ownership Percentage, Balances as of December 31, 2024 | 73.40% |
Ownership Percentage, Exchange of Class C common stock | 0.30% |
Ownership Percentage, Issuance of LLC Units in connection with equity-based compensation plans | 0.20% |
Ownership Percentage, Balances as of March 31, 2025 | 73.90% |
Continuing Members |  |
Noncontrolling Interest [Line Items] |  |
Ownership, Balances as of December 31, 2024 | 62,857,813 | [1]
Ownership, Exchange of Class C common stock | (598,404) | [1]
Ownership, Vesting of LLC Units | 62,504 | [1]
Ownership, Balances as of March 31, 2025 | 62,321,913 | [1]
Ownership Percentage, Balances as of December 31, 2024 | 26.60% | [1]
Ownership Percentage, Exchange of Class C common stock | (0.30%) | [1]
Ownership Percentage, Issuance of LLC Units in connection with equity-based compensation plans | (0.20%) | [1]
Ownership Percentage, Balances as of March 31, 2025 | 26.10% | [1]
[1] | Excludes 1,009,302 and 1,071,806 LLC Units still subject to vesting conditions at March 31, 2025 and December 31, 2024, respectively.

X
- Definition Minority interest ownership percentage. + References No definition available. + Details
Name: | ck0001889956_MinorityInterestOwnershipPercentage
Namespace Prefix: | ck0001889956_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ownership percentage, issuance of limited liability company units in connection with equity-based compensation plans. + References No definition available. + Details
Name: | ck0001889956_OwnershipPercentageIssuanceOfLimitedLiabilityCompanyUnitsInConnectionWithEquity-BasedCompensationPlans
Namespace Prefix: | ck0001889956_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Ownership percentage of exchange of common stock to units. + References No definition available. + Details
Name: | ck0001889956_OwnershipPercentageOfExchangeOfCommonStockToUnits
Namespace Prefix: | ck0001889956_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Vesting of common units. + References No definition available. + Details
Name: | ck0001889956_VestingOfCommonUnits
Namespace Prefix: | ck0001889956_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of common units of ownership outstanding of a limited liability company (LLC). + References No definition available. + Details
Name: | us-gaap_CommonUnitOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
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_MinorityInterestLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of units converted into shares of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
Name: | us-gaap_PartnersCapitalAccountUnitsConverted
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of units issued for unit-based payment arrangement issued by partnership. Partner includes, but is not limited to, general, limited and preferred partners. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
Name: | us-gaap_PartnersCapitalAccountUnitsUnitbasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_OwnershipAxis=ck0001889956_OnestreamIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=ck0001889956_ContinuingMembersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |