Fair Value of Financial Instruments - Fair Value Measurements (Details) - Level 3 - USD ($) $ in Thousands |
Dec. 31, 2022 |
Jan. 01, 2022 |
|---|---|---|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Current portion of acquisition-related liabilities and Accrued expenses - Contingent consideration | $ 336 | $ 129 |
| Acquisition-related liabilities and Other noncurrent liabilities - Contingent consideration | 4,981 | 1,239 |
| Summit Materials, LLC | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Current portion of acquisition-related liabilities and Accrued expenses - Contingent consideration | 336 | 129 |
| Acquisition-related liabilities and Other noncurrent liabilities - Contingent consideration | $ 4,981 | $ 1,239 |