Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, 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
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-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
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-Name Accounting Standards Codification
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Name:	us-gaap_SeveranceCosts1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring Actions - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 28, 2021	Jun. 28, 2020	Mar. 29, 2020	Dec. 27, 2020
Restructuring Cost and Reserve [Line Items]
Pre-tax severance expense		$ 6.9
eOne
Restructuring Cost and Reserve [Line Items]
Pre-tax severance expense	$ 13.2		$ 13.2	$ 32.5