Commitments and guarantees - Additional Information (Detail) $ in Millions |
6 Months Ended |
|---|---|
|
Jun. 30, 2026
USD ($)
| |
| Senior Facilities Agreement [Member] | |
| Long-Term Purchase Commitment [Line Items] | |
| Guarantor obligations, maximum exposure, undiscounted | $ 185.4 |
| Intangible Assets [Member] | |
| Long-Term Purchase Commitment [Line Items] | |
| Long-term purchase commitment, amount | 32.1 |
| Property, Plant and Equipment [Member] | |
| Long-Term Purchase Commitment [Line Items] | |
| Long-term purchase commitment, amount | $ 259.9 |