Accrued Mining and Landfill Reclamation - Activity for Asset Retirement Obligations (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
---|---|---|---|
Jan. 02, 2021 |
Dec. 28, 2019 |
Dec. 29, 2018 |
|
Asset Retirement Obligation, Activity | |||
Beginning balance | $ 36,676 | $ 30,999 | |
Acquired obligations | 861 | 805 | |
Change in cost estimate | 6,523 | 4,468 | |
Settlement of reclamation obligations | (3,095) | (1,812) | |
Accretion expense | 2,638 | 2,216 | $ 1,605 |
Ending balance | 43,603 | 36,676 | 30,999 |
Summit Materials, LLC | |||
Asset Retirement Obligation, Activity | |||
Beginning balance | 36,676 | 30,999 | |
Acquired obligations | 861 | 805 | |
Change in cost estimate | 6,523 | 4,468 | |
Settlement of reclamation obligations | (3,095) | (1,812) | |
Accretion expense | 2,638 | 2,216 | 1,605 |
Ending balance | $ 43,603 | $ 36,676 | $ 30,999 |