Commitments and Contingencies - Summary of Capital Expenditures (Detail) - CNY (¥) ¥ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Long-term Purchase Commitment [Line Items] | ||
| Long-term Purchase Commitment, Amount | ¥ 2,108,882 | ¥ 717,263 |
| Investments [Member] | ||
| Long-term Purchase Commitment [Line Items] | ||
| Long-term Purchase Commitment, Amount | 293,480 | 404,846 |
| Property, plant and equipment [Member] | ||
| Long-term Purchase Commitment [Line Items] | ||
| Long-term Purchase Commitment, Amount | ¥ 1,815,402 | ¥ 312,417 |