Selling, General and Administrative Expense (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Selling, General and Administrative Expense [Abstract]
Production and distribution costs	$ 4.5	$ 3.8	$ 12.8	$ 10.9

Amount of expense related to the production and distribution of goods or services to customers and clients.

No definition available.

Name:	us-gaap_ProductionAndDistributionCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration