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Income Taxes - Summary of Tax Years that Remain Subject to Examination by Major Jurisdiction (Detail) | 12 Months Ended
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Dec. 31, 2018
Canada [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2018
France [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2018
Minimum [Member] | Americas [Member] | United States - Federal [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2015
Minimum [Member] | Americas [Member] | United States - State [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2014
Minimum [Member] | Canada [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2011
Examination in progress | 2014
Minimum [Member] | Germany [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2016
Examination in progress | 2011
Minimum [Member] | France [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examination in progress | 2015
Minimum [Member] | United Kingdom [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2017
Minimum [Member] | Philippines [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2015
Examination in progress | 2016
Maximum [Member] | Americas [Member] | United States - Federal [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2018
Maximum [Member] | Americas [Member] | United States - State [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2018
Maximum [Member] | Canada [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2013
Examination in progress | 2017
Maximum [Member] | Germany [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2018
Examination in progress | 2015
Maximum [Member] | France [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examination in progress | 2017
Maximum [Member] | United Kingdom [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2018
Maximum [Member] | Philippines [Member] | Foreign Tax Authority [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2018
Examination in progress | 2017

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