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v3.25.1

Stockholders' / Members' Equity - Additional Information (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 $ / shares shares | Dec. 31, 2024 $ / shares shares
Class of Stock [Line Items] |  |
Preferred stock, shares authorized | 100,000,000 | 100,000,000
Preferred stock, par value | $ / shares | $ 0.0001 | $ 0.0001
Preferred stock, shares outstanding | 0 | 0
Recapitalization of OneStream Software LLC | LLC Units |  |
Class of Stock [Line Items] |  |
Stock outstanding ratio | 1 |
OneStream, Inc | Recapitalization of OneStream Software LLC |  |
Class of Stock [Line Items] |  |
Common stock, shares outstanding | 80,324,378 |
OneStream, Inc | Recapitalization of OneStream Software LLC | LLC Units |  |
Class of Stock [Line Items] |  |
Shares outstanding | 6,591,178 |
Class A common stock |  |
Class of Stock [Line Items] |  |
Common stock, shares authorized | 2,500,000,000 | 2,500,000,000
Common stock, par value | $ / shares | $ 0.0001 | $ 0.0001
Common stock, voting rights | Each share of Class A common stock is entitled to one vote per share and has economic rights. |
Common stock, shares outstanding | 75,209,102 | 51,456,091
Common stock, shares, issued | 75,209,102 | 51,456,091
Class A common stock | LLC Units |  |
Class of Stock [Line Items] |  |
Number of units redeemed | 598,404 |
Class A common stock | Common Stock |  |
Class of Stock [Line Items] |  |
Shares converted into equal number of shares | 21,335,418 |
Shares outstanding | 75,209,102 | 51,456,091
Class B common stock |  |
Class of Stock [Line Items] |  |
Common stock, shares authorized | 300,000,000 | 300,000,000
Common stock, par value | $ / shares | $ 0.0001 | $ 0.0001
Common stock, voting rights | Each share of Class B common stock is entitled to one vote per share, is cancellable upon the redemption or exchange of one LLC Unit for cash or one share of Class A common stock and has no economic rights. |
Common stock, shares outstanding | 0 | 0
Common stock, shares, issued | 0 | 0
Class C Common Stock |  |
Class of Stock [Line Items] |  |
Common stock, shares authorized | 300,000,000 | 300,000,000
Common stock, par value | $ / shares | $ 0.0001 | $ 0.0001
Common stock, voting rights | Each share of Class C common stock is entitled to ten votes per share, is cancellable upon the redemption or exchange of one LLC Unit for cash or one share of Class D common stock, is convertible into one share of Class B common stock and has no economic rights. |
Common stock, shares outstanding | 63,331,215 | 63,929,619
Common stock, shares, issued | 63,331,215 | 63,929,619
Class C Common Stock | Common Stock |  |
Class of Stock [Line Items] |  |
Shares outstanding | 63,331,215 | 63,929,619
Class C Common Stock | Recapitalization of OneStream Software LLC |  |
Class of Stock [Line Items] |  |
Shares issued and outstanding LLC units | 3,006,037 |
Common stock, shares, issued | 74,135,230 |
Class D Common Stock |  |
Class of Stock [Line Items] |  |
Common stock, shares authorized | 600,000,000 | 600,000,000
Common stock, par value | $ / shares | $ 0.0001 | $ 0.0001
Common stock, voting rights | Each share of Class D common stock is entitled to ten votes per share, is convertible into one share of Class A common stock and has economic rights. |
Common stock, shares outstanding | 100,860,889 | 122,196,307
Common stock, shares, issued | 100,860,889 | 122,196,307
Class D Common Stock | Common Stock |  |
Class of Stock [Line Items] |  |
Shares converted into equal number of shares | (21,335,418) |
Shares outstanding | 100,860,889 | 122,196,307
Class D Common Stock | Recapitalization of OneStream Software LLC |  |
Class of Stock [Line Items] |  |
Shares converted into equal number of shares | 5,986,437 |
Common stock, shares, issued | 132,081,358 |
Preferred stock | Recapitalization of OneStream Software LLC | LLC Units |  |
Class of Stock [Line Items] |  |
Stock outstanding ratio | 1 |
Preferred stock | OneStream, Inc | Recapitalization of OneStream Software LLC |  |
Class of Stock [Line Items] |  |
Shares outstanding | 128,293,508 |
Incentive stock | OneStream, Inc | Recapitalization of OneStream Software LLC |  |
Class of Stock [Line Items] |  |
Shares outstanding | 8,632,763 |

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