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Acquisitions - Narrative (Detail) - USD ($) $ in Millions |  |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Feb. 26, 2021 | Sep. 28, 2020 | Jan. 31, 2020 | Apr. 03, 2021 | Mar. 28, 2020 | Jan. 02, 2021 | Jun. 27, 2020
Business Acquisition [Line Items] |  |  |  |  |  |  |
Payment to acquire business, net of cash acquired |  |  |  | $ 200.0 | $ 6.1 |  |
Goodwill |  |  |  | 1,161.8 |  | $ 982.4 |
Dealer-FX |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash purchase price of acquisition | $ 200.1 |  |  |  |  |  |
Payment to acquire business, net of cash acquired | $ 200.0 |  |  |  |  |  |
Goodwill |  |  |  | 195.2 |  |  |
AutoCrib |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash purchase price of acquisition |  | $ 35.4 |  |  |  |  |
Goodwill |  |  |  | $ 18.3 |  |  |
Sigmavision |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Cash purchase price of acquisition |  |  | $ 5.9 |  |  |  |
Goodwill |  |  |  |  |  |  | $ 5.6

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