Number of shares that have been repurchased and retired during the period.

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Name:	us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Stock Repurchases (Details) - USD ($)	12 Months Ended
Stock Repurchases (Details) - USD ($)	Sep. 28, 2019	Feb. 05, 2020	Oct. 28, 2018
Class of Stock [Line Items]
Stock repurchase program, authorized amount		$ 100,000,000.0	$ 250,000,000.0
Oct 2018 repurchase program
Class of Stock [Line Items]
Repurchase limit per quarter			$ 75,000,000.0
Feb 2018 repurchase program
Class of Stock [Line Items]
Stock repurchased and retired during period (in shares)	603,828
Stock repurchase, price paid per share (in dollars per share)	$ 128.20
Total cost of stock repurchased, net	$ 77,400,000