Trade Accounts Receivable Sale Programs - Narrative (Details) - USD ($) $ in Thousands				3 Months Ended		9 Months Ended
	May 04, 2018	Oct. 19, 2017	Mar. 17, 2017	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]
Trade Accounts Receivables Sold				$ 199,100	$ 115,300	$ 497,400	$ 284,600
Cash Proceeds Received from Trade Accounts Receivable Sold				$ 197,800	$ 114,600	$ 494,400	$ 283,100
MUFG RPA
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]
Maximum facility amount	$ 210,000	$ 160,000
Minimum prior notice required to cancel automatic extension						10 days
HSBC RPA
Amount Received From Trade Accounts Receivable Sold To Third Party [Line Items]
Maximum facility amount			$ 60,000