Marketable Securities - Additional Information (Detail) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Investments, Debt and Equity Securities [Abstract] | ||
| Marketable securities | $ 260.7 | $ 295.4 |
| Marketable securities, non-current | 0.0 | 0.0 |
| Available-for-sale debt securities remaining maturities greater than thirty months | 0.0 | |
| Equity investments without readily determinable fair value | $ 35.9 | $ 22.6 |