LEASES - Weighted Average Lease Term and Discount Rate (Details)	Sep. 27, 2020	Sep. 29, 2019
Weighted-average remaining lease term (years):
Operating leases	5 years 7 months 13 days	5 years 9 months 25 days
Finance leases	3 years 10 months 24 days	4 years 6 months 14 days
Weighted-average discount rate:
Operating leases	4.56%	4.86%
Finance leases	5.05%	5.31%