Leases - Schedule of Quantitative Information on the Partnership's Lease Population (Details) $ in Thousands	3 Months Ended
	Dec. 28, 2019 USD ($)
Lessee Disclosure [Abstract]
Lease expense	$ 7,262
Other information:
Cash payments for operating leases	7,410
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 5,331
Weighted-average remaining lease term	6 years 8 months 12 days
Weighted-average discount rate	5.20%