Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	Nov. 07, 2025	Nov. 05, 2025	Sep. 30, 2025
Subsequent Event [Line Items]
Total common stock reserved (in shares)			38,976,643
Subsequent Event
Subsequent Event [Line Items]
Price per share (in dollars per share)	$ 60.00
Subsequent Event | Employee Stock
Subsequent Event [Line Items]
Total common stock reserved (in shares)		548,880
Common stock authorized (in shares)		8,400,000
Shares authorized per participant (in shares)		7,500
Purchase price of common stock, percent of market price		85.00%
Subsequent Event | The 2025 Plan
Subsequent Event [Line Items]
Shares available for issuance (in shares)		3,297,972
Subsequent Event | The 2018 Plan
Subsequent Event [Line Items]
Shares available for issuance (in shares)		10,034,626
Subsequent Event | Common Class B | Chief Executive Officer
Subsequent Event [Line Items]
Number of shares converted (in shares)	2,325,108
Subsequent Event | Common Class B | Chief Technology Officer
Subsequent Event [Line Items]
Number of shares converted (in shares)	2,227,542
IPO | Subsequent Event
Subsequent Event [Line Items]
Shares issued (in shares)	5,233,765
Gross proceeds from sale of stock	$ 314.0
Net proceeds from sale of stock	$ 286.4
IPO | Subsequent Event | Common Class A
Subsequent Event [Line Items]
Number of shares converted (in shares)	29,084,235
Over-Allotment Option | Subsequent Event
Subsequent Event [Line Items]
Shares issued (in shares)	682,665