Capital stock - Additional Information (Detail) - shares |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 25, 2025 |
|
| Number of shares of common stock authorized | 115,800,000 | 115,800,000 | |
| Common stock voting right | one | ||
| Voting Common Stock [Member] | Minimum [Member] | |||
| Number of shares of common stock authorized | 20,000,000 | ||
| Voting Common Stock [Member] | Maximum [Member] | |||
| Number of shares of common stock authorized | 100,000,000 | ||
| Non-Voting Common Stock [Member] | Minimum [Member] | |||
| Number of shares of common stock authorized | 800,000 | ||
| Non-Voting Common Stock [Member] | Maximum [Member] | |||
| Number of shares of common stock authorized | 15,800,000 |