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Acquisitions - Summary of Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions | Oct. 31, 2016 | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Assets acquired: |  |  |
Goodwill |  | $ 924.0 | $ 895.5
Car-O-Liner Holding AB [Member] |  |  |
Assets acquired: |  |  |
Goodwill |  | $ 77.7 |
Liabilities assumed: |  |  |
Net assets acquired | $ 152.0 |  |
Car-O-Liner Holding AB [Member] | Provisional [Member] |  |  |
Assets acquired: |  |  |
Cash | 3.9 |  |
Trade and other accounts receivable | 17.0 |  |
Inventories | 18.3 |  |
Property and equipment | 17.3 |  |
Goodwill | 77.7 |  |
Other intangibles: |  |  |
Customer relationships | 27.2 |  |
Non-amortized trademarks | 27.7 |  |
Other assets | 5.9 |  |
Total assets acquired | 195.0 |  |
Liabilities assumed: |  |  |
Accounts payable | 9.8 |  |
Deferred income tax liabilities | 15.4 |  |
Accrued expenses | 13.5 |  |
Pension liabilities | 4.3 |  |
Total liabilities assumed | 43.0 |  |
Net assets acquired | $ 152.0 |  |

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