Restructuring and Related Charges (Schedule of Restructuring and Related Charges by Segment) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 25, 2020	Sep. 27, 2019	Sep. 25, 2020	Sep. 27, 2019
Restructuring Cost and Reserve
Restructuring charges, net	$ 3.2	$ 7.2	$ 15.8	$ 11.2
Specialty Brands
Restructuring Cost and Reserve
Restructuring and related charges, net	0.0	0.0	0.1	0.4
Specialty Generics
Restructuring Cost and Reserve
Restructuring and related charges, net	0.0	6.7	0.1	9.3
Corporate
Restructuring Cost and Reserve
Restructuring and related charges, net	$ 3.2	$ 0.5	$ 15.6	$ 1.5

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration