Fair value of financial instruments - Fair Value Reconciliation of Level 3 (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
May 25, 2025 |
Jun. 30, 2026 |
May 25, 2025 |
|
| Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] | ||||
| Balance at beginning of period | $ 29,719 | $ 23,900 | $ 26,564 | $ 23,300 |
| Change in fair value recorded in earnings | 1,203 | 1,091 | 4,358 | 1,691 |
| Balance at end of period | $ 30,922 | $ 24,991 | $ 30,922 | $ 24,991 |