Legal Proceedings Legal (Details) - USD ($) $ in Thousands			12 Months Ended
	Oct. 01, 2018	Aug. 28, 2018	Apr. 28, 2018	Oct. 27, 2018
Loss Contingencies [Line Items]
Stock repurchased			$ 87,500
Class Action Complaints Against Henry Schein Inc., Benco Dental Supply Company And Patterson Companies, Inc.
Loss Contingencies [Line Items]
Litigation settlement reserve				$ 28,263
Kirsten Johnsen V. Scott P Anderson Et Al
Loss Contingencies [Line Items]
Stock repurchased	$ 412,800	$ 412,800