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v3.19.1

Capital Management - Additional Information (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($)
Disclosure of financial assets [abstract] |
Term loan and revolving credit facility | $ 1,290
Ratio of net debt to adjusted EBITDA, long-term target description | Ratio of net debt to adjusted EBITDA of one times or lower
Ratio of net debt to adjusted EBITDA required for external borrowings description | Net debt to adjusted EBITDA ratio of 2.5 or below
Currency used for measurement of ratio | United States dollar

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- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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