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Leases (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 29, 2019
Jun. 29, 2019
Leases [Abstract]    
Operating lease expense $ 9,638 $ 17,319
Cash paid for amounts included in the measurement of operating lease liabilities 7,946 14,242
ROU assets obtained in exchange for operating lease obligations $ 16,090 $ 33,595