Available for sale securities gross realized gain.

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Available for sale securities gross realized loss.

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Financial Instruments and Fair Value [Line Items]

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Foreign Currency Transaction Gain, Unrealized

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Foreign Currency Transaction (Loss), Unrealized

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- Definition

Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), without single maturity date and not allocated over maturity grouping.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement.

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Amount awarded to other party in judgment or settlement of litigation.

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Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended			9 Months Ended		12 Months Ended
	Mar. 25, 2022	Oct. 03, 2022	Oct. 02, 2022	Oct. 03, 2021	Oct. 02, 2022	Oct. 03, 2021	Dec. 31, 2021
Financial Instruments and Fair Value [Line Items]
Available-for-sale securities, realized gain			$ 0.1	$ 0.5	$ 0.6	$ 2.6
Fair market value of investments with unrealized losses greater than one year			28.0		28.0		$ 6.5
Fair market value of investments with unrealized losses less than one year			99.7		99.7		85.4
Unrealized Gain (loss) on contracts			1.6	1.0	9.5	1.3
Equity securities unrealized gain			0.0		0.0	3.3
Equity securities unrealized loss			2.3	0.4	11.1	1.1
Available For Sale Securities Gross Realized Loss			0.3	$ 0.0	0.9	$ 0.0
Cash Flow Hedging [Member]
Financial Instruments and Fair Value [Line Items]
Other comprehensive income (Loss), cash flow hedge, gain (loss), before reclassification, after tax					0.5
Debt Mutual Funds
Financial Instruments and Fair Value [Line Items]
Available for sale securities with out contractual maturity date			$ 6.4		$ 6.4
TER Auto Guide Llc [Member] \| Dispute In Respect Of Contingent Consideration [Member]
Financial Instruments and Fair Value [Line Items]
Litigation Settlement, Amount settled between parties	$ 26.7
Foreign Exchange Contracts
Financial Instruments and Fair Value [Line Items]
Unrealized Gain (loss) on contracts		$ (1.1)					$ (0.1)