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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, 2015
United States - Federal [Member] | United States [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2013 - 2015
Examination in progress | N/A
United States - State [Member] | United States [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2011 - 2015
Examination in progress | 2012 - 2014
Foreign Tax Authority [Member] | Canada [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2010 - 2015
Examination in progress | N/A
Foreign Tax Authority [Member] | Germany [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2012 - 2015
Examination in progress | 2007 - 2011
Foreign Tax Authority [Member] | France [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2013 - 2015
Examination in progress | 2011 - 2012
Foreign Tax Authority [Member] | United Kingdom [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2014 - 2015
Examination in progress | N/A
Foreign Tax Authority [Member] | Philippines [Member] |
Income Tax Examination [Line Items] |
Examinations not yet initiated | 2012, 2014 - 2015
Examination in progress | 2013

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