Revenue From Contracts With Customers Contract Balances (Details) - USD ($) $ in Millions	Jun. 29, 2019	Dec. 29, 2018	Jun. 30, 2018
Revenue from Contracts with Customer [Abstract]
Customer Advances, Current	$ 4.1	$ 3.8	$ 7.5
Customer Markdowns Reserve	4.8	4.0	6.7
Sales Incentives Reserve	1.9	2.3	2.5
Customer Rebates Liability	10.2	12.8	10.2
Product Returns Reserve	$ 10.5	$ 13.6	$ 12.8

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130532-203044

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

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