Leases - Components of Lease Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 02, 2021
Jul. 03, 2020
Jul. 02, 2021
Jul. 03, 2020
Leases [Abstract]        
Operating lease expense $ 2,240 $ 1,308 $ 4,065 $ 4,272
Variable lease expense 213 185 415 355
Short-term lease expense 17,289 13,260 30,737 26,160
Total lease expense $ 19,742 $ 14,753 $ 35,217 $ 30,787