Non-cash Share-based Compensation - Summary of Non-cash Share-based Compensation Expense (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 04, 2026 |
Jun. 28, 2025 |
Jul. 04, 2026 |
Jun. 28, 2025 |
|
| Share-Based Payment Arrangement [Abstract] | ||||
| Expenses related to Midera employee participation in Middleby's incentive plan | $ 0.9 | $ 0.6 | $ 2.0 | $ 0.8 |
| Expenses allocated to Midera for corporate or shared employees based on net sales | 1.2 | 0.8 | 2.6 | 1.0 |
| Total pre-tax non-cash share-based compensation expense | 2.1 | 1.4 | 4.6 | 1.8 |
| Tax expense (benefit) | (0.1) | 0.1 | ||
| Total non-cash share-based compensation expense, net of tax | $ 2.1 | $ 1.4 | $ 4.7 | $ 1.7 |