Revenue From Contracts With Customers Contract Balances (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 30, 2017
Revenue Recognition [Abstract]
Product Returns Reserve	$ 13.3	$ 12.6
Customer Rebates Liability	10.6	10.4
Customer Markdowns Reserve	6.3	6.4
Sales Incentives Reserve	4.2	3.3
Customer Advances, Current	$ 5.4	$ 6.7

The current portion of prepayments received from customers for goods or services to be provided in the future.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_CustomerAdvancesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant