Leases - Supplemental Balance Sheet and Other Information (Details) $ in Thousands	Sep. 27, 2020 USD ($)
Operating leases:
Right-of-use assets	$ 239,396
Lease liabilities:
Current	69,650
Long-term	191,955
Total operating lease liabilities	$ 261,605
Weighted-average remaining lease term:
Operating leases	5 years
Weighted-average discount rate:
Operating leases	2.50%