Quarterly report pursuant to Section 13 or 15(d)

LEASES - Lease Costs (Details)

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LEASES - Lease Costs (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2019
Sep. 28, 2019
Leases [Abstract]    
Operating lease cost $ 9,924 $ 28,880
Short-term lease cost (excluding leases of one month or less) 877 2,383
Variable lease cost 873 4,424
Total lease costs $ 11,674 35,687
Cash paid for amounts included in the measurement of lease liabilities - operating cash flows   34,486
Right-of-use assets obtained in exchange for new operating leases - non-cash activity   $ 38,939