Goodwill and Intangible Assets - Purchased Intangible Assets (Parenthetical) (Detail) $ in Millions	3 Months Ended
Mar. 26, 2021 USD ($)
UCT Tradename [Member]
Finite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets acquired	$ 9.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration