Summary of Material Accounting Policies - Summary of Subscription Agreements (Detail) - shares shares in Millions |
12 Months Ended | ||||
|---|---|---|---|---|---|
Sep. 01, 2025 |
Sep. 30, 2024 |
Sep. 27, 2024 |
Mar. 24, 2024 |
Dec. 31, 2025 |
|
| Kayana [member] | |||||
| Disclosure Of Significant Accounting Policies [Line Items] | |||||
| Number of Shares Acquired | 594.0 | 46.5 | 85.5 | 754.5 | 1,480.5 |