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Segment Information (Segment Select Balance Sheet) (Detail) - USD ($) $ in Millions | Apr. 03, 2020 | Jan. 03, 2020
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Accounts receivable, net | $ 546.6 | $ 608.2
Inventory, Net | 327.2 | 312.1
Goodwill | 3,783.6 | 3,680.6
Buildings and Infrastructure [Member] |  |
Segment Reporting Information [Line Items] |  |
Accounts receivable, net | 183.6 | 232.0
Inventory, Net | 62.8 | 67.1
Goodwill | 1,954.9 | 1,973.0
Geospatial [Member] |  |
Segment Reporting Information [Line Items] |  |
Accounts receivable, net | 102.7 | 115.5
Inventory, Net | 128.5 | 125.0
Goodwill | 393.8 | 401.5
Resources and Utilities [Member] |  |
Segment Reporting Information [Line Items] |  |
Accounts receivable, net | 104.5 | 93.3
Inventory, Net | 44.2 | 45.5
Goodwill | 434.6 | 445.4
Transportation [Member] |  |
Segment Reporting Information [Line Items] |  |
Accounts receivable, net | 155.8 | 167.4
Inventory, Net | 91.7 | 74.5
Goodwill | $ 1,000.3 | $ 860.7

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