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Acquisitions - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Jul. 06, 2017 | Apr. 03, 2017 | Apr. 15, 2016 | Jul. 31, 2017 | Jan. 31, 2017 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Payments to acquire businesses, cash |  |  |  |  |  |  |  | $ 557.6 | $ 8,597.7 |
Goodwill |  |  |  |  |  | $ 10,461.9 |  | 10,461.9 |  | $ 10,218.9
Amortization of intangible assets |  |  |  |  |  | 79.4 | $ 59.4 | 181.0 | 79.2 |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Share conversion ratio upon merger | 86.20% |  |  |  |  |  |  |  |  |
Business acquisition, equity interest issued or issuable, number of shares | 6.6 |  |  |  |  |  |  |  |  |
Issue of common stock to settling petitioners , Value | $ 162.0 |  |  |  |  |  |  |  |  |
Smith Mountain Industries [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Payments to acquire businesses, cash |  |  |  |  | $ 100.0 |  |  |  |  |
Jarden Acquisition [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Payments to acquire businesses, cash |  |  | $ 5,400.0 |  |  |  |  |  |  |
Share conversion ratio upon merger |  |  | 86.20% |  |  |  |  |  |  |
Business combination, cash consideration transferred per share |  |  | $ 21.00 |  |  |  |  |  |  |
Business combination cash merger consideration payable to dissenting shareholders |  |  |  |  |  | $ 222.0 |  | $ 222.0 |  |
Shares issuable to Dissenting Shareholders |  |  |  |  |  |  |  | 9.1 |  |
Business combination, consideration transferred, liabilities incurred |  |  |  |  |  |  |  | $ 627.0 |  |
Merger consideration including debt assumed |  |  | $ 18,700.0 |  |  |  |  |  |  |
Business combination consideration issuable or payable |  |  | $ 15,300.0 |  |  |  |  |  |  |
Business acquisition, equity interest issued or issuable, number of shares |  |  | 213.9 |  |  |  |  |  |  |
Equity issued in business combination, fair value |  |  | $ 9,900.0 |  |  |  |  |  |  |
Jarden Acquisition [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Business combination, cash consideration transferred per share | $ 21.00 |  |  |  |  |  |  |  |  |
Business acquisition, equity interest issued or issuable, number of shares |  |  |  | 6.6 |  |  |  |  |  |
Issue of common stock to settling petitioners , Value |  |  |  | $ 162.0 |  |  |  |  |  |
Jarden Acquisition [Member] | Pro Forma [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Amortization of intangible assets |  |  |  |  |  |  | $ 51.9 |  | $ 104.0 |
Sistema Plastics [Member] |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |
Payments to acquire businesses, cash |  | $ 472.0 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | 39.0 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  | 286.0 |  |  |  |  |  |  |  |
Goodwill |  | $ 147.0 |  |  |  |  |  |  |  |

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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