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- Components of Lease Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2019
Jun. 29, 2019
Leases [Abstract]    
Operating lease cost $ 12,511 $ 24,828
Short-term Lease, Cost 2,697 5,750
Total lease costs $ 15,208 $ 30,578