Debt - Summary of Activity for Deferred Financing Fees (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2022 |
Jan. 01, 2022 |
|
| Deferred finance costs | ||
| Beginning balance | $ 13,049 | $ 18,367 |
| Loan origination fees | 1,557 | |
| Amortization | (2,655) | (3,202) |
| Write off of deferred financing fees | (462) | (2,116) |
| Ending balance | 11,489 | 13,049 |
| Summit Materials, LLC | ||
| Deferred finance costs | ||
| Beginning balance | 13,049 | 18,367 |
| Loan origination fees | 1,557 | |
| Amortization | (2,655) | (3,202) |
| Write off of deferred financing fees | (462) | (2,116) |
| Ending balance | $ 11,489 | $ 13,049 |