Quarterly report pursuant to Section 13 or 15(d)

Leases - Lease Cost (Details)

v3.19.2
Leases - Lease Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2019
Jun. 29, 2019
Leases [Abstract]    
Operating lease cost $ 4,575 $ 9,298
Short term lease costs 742 1,975
Variable lease costs 352 540
Amortization of right of use assets 143 235
Interest on lease liabilities $ 28 $ 43