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Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Apr. 06, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Business Acquisition [Line Items] |  |  |  |
Goodwill |  | $ 1,148,302 | $ 1,171,454 | $ 604,714
Payments to Acquire Businesses, Net of Cash Acquired |  | 0 | 1,023,848 | 0
Total segment income |  | $ 412,100 | $ 356,990 | $ 299,730
Dispensing Systems Business Acquisition [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Goodwill | $ 511,000 |  |  |
Payments to Acquire Businesses, Net of Cash Acquired | 1,023,800 |  |  |
Dispensing Systems Business Acquisition [Member] | Customer relationships [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Other Intangible Assets | 220,000 |  |  |
Dispensing Systems Business Acquisition [Member] | Technology And Know How [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Business Combination, Other Intangible Assets | $ 25,000 |  |  |

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