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Goodwill and Other Intangible Assets - Narratve (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | $ 902.2 | $ 924.1 | $ 895.5
Gross carrying value, finite-lived intangible assets | $ 393.5 | 415.9 |
Weighted-average amortization period (in years) | 11 years |  |
Aggregate amortization expense | $ 25.3 | 27.6 | 24.2
Estimated annual amortization expense for fiscal period 2019 | 21.5 |  |
Estimated annual amortization expense for fiscal period 2020 | 17.5 |  |
Estimated annual amortization expense for fiscal period 2021 | 14.8 |  |
Estimated annual amortization expense for fiscal period 2022 | 12.6 |  |
Estimated annual amortization expense for fiscal period 2023 | 12.0 |  |
Commercial & Industrial Group |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | 286.2 | 298.4 | 242.4
Repair Systems & Information Group |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | 603.5 | 613.2 | $ 640.6
Norbar |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | 25.1 | 23.7 |
Norbar | Trademarks |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross carrying value, indefinite-lived intangible assets | 16.9 |  |
Norbar | Commercial & Industrial Group |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | 25.1 |  |
Increase (decrease) in goodwill associated with acquisition, purchase accounting adjustment | 1.4 |  |
George A. Sturdevant, Inc. (d/b/a Fastorq) |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | 2.6 |  |
George A. Sturdevant, Inc. (d/b/a Fastorq) | Commercial & Industrial Group |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | 2.6 |  |
Torque Control Specialists Pty Ltd |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | 2.0 | 1.9 |
Torque Control Specialists Pty Ltd | Commercial & Industrial Group |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill | 2.0 |  |
Increase (decrease) in goodwill associated with acquisition, purchase accounting adjustment | 0.1 |  |
BTC |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill |  | 5.9 |
BTC | Trademarks |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross carrying value, indefinite-lived intangible assets | 2.1 |  |
Car-O-Liner Holding AB |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill |  | 77.3 |
Increase (decrease) in goodwill associated with acquisition, purchase accounting adjustment |  | (50.8) |
Car-O-Liner Holding AB | Trademarks |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross carrying value, indefinite-lived intangible assets | 29.8 |  |
Car-O-Liner Holding AB | Commercial & Industrial Group |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill |  | 0.8 |
Increase (decrease) in goodwill associated with acquisition, purchase accounting adjustment |  | (1.7) |
Car-O-Liner Holding AB | Repair Systems & Information Group |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill |  | 76.5 |
Increase (decrease) in goodwill associated with acquisition, purchase accounting adjustment |  | (49.1) |
Sturtevant Richmont |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Goodwill |  | 5.0 |
Increase (decrease) in goodwill associated with acquisition, purchase accounting adjustment |  | 1.8 |
Customer relationships |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross carrying value, finite-lived intangible assets | $ 172.2 | 175.2 |
Weighted-average amortization period (in years) | 15 years |  |
Customer relationship contractual term, minimum (in years) | 3 years |  |
Customer relationship contractual term, maximum (in years) | 5 years |  |
Customer relationships | Norbar |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross carrying value, finite-lived intangible assets |  | 1.1 |
Customer relationships | BTC |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross carrying value, finite-lived intangible assets |  | 1.2 |
Customer relationships | Car-O-Liner Holding AB |  |  |
Acquired Finite And Indefinite Lived Intangible Assets [Line Items] |  |  |
Gross carrying value, finite-lived intangible assets |  | $ 28.8 |

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