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Divestitures and Planned Divestitures - Additional Information (Detail) - USD ($) $ in Millions |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jul. 14, 2017 | Mar. 09, 2017 | Jun. 30, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Pre-tax gain (loss) on sale of business |  |  |  | $ 713.0 | $ 161.1 | $ 154.2
Goodwill impairment |  |  |  | 0.0 | 0.0 |
Cash consideration on sale of business |  |  |  | 2,106.9 | $ 227.2 | $ 214.8
Winter Sport Business [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Selling price of business | $ 240.0 |  |  |  |  |
Write down of carrying value of net asset |  |  |  | 59.1 |  |
Goodwill impairment |  |  |  | 12.6 |  |
Impairment of other intangible assets |  |  |  | 46.5 |  |
Winter Sport Business [Member] | Other Expense (Income), Net [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Pre-tax gain (loss) on sale of business |  |  |  | 47.6 |  |
Fire Building Business [Member] | Royal Oak [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Write down of carrying value of net asset |  |  |  | 15.3 |  |
Tools [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Cash consideration on sale of business |  | $ 1,950.0 |  |  |  |
Disposal group, including discontinued operations, net assets of disposal group |  | 1,100.0 |  |  |  |
Goodwill, written off related to sale of business unit |  | $ 711.0 |  |  |  |
Disposal group, not discontinued operation, gain (loss) on disposal |  |  |  | 768.0 |  |
Tools [Member] | Net Sales [Member] | Product Concentration [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Concentration percentage |  |  |  |  | 5.50% | 12.90%
Decor [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Cash consideration on sale of business |  |  | $ 224.0 |  |  |
Disposal group, not discontinued operation, gain (loss) on disposal |  |  |  |  | $ 160.0 |
Decor [Member] | Net Sales [Member] | Product Concentration [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Concentration percentage |  |  |  |  | 1.10% | 5.10%
Endicia [Member] |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |
Proceeds from divestiture of businesses, net of cash divested |  |  |  | 209.0 |  |
Pre-tax gain (loss) on sale of business |  |  |  | $ 154.0 |  |

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