Income Taxes - Summary of Tax Years that Remain Subject to Examination by Major Jurisdiction (Detail)	9 Months Ended
	Sep. 30, 2020
Philippines [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2019
Minimum [Member] | United States [Member] | United States - Federal [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2017
Minimum [Member] | United States [Member] | United States - State [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2015
Examination in progress	2015
Minimum [Member] | Canada [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2012
Minimum [Member] | Germany [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2016
Minimum [Member] | France [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2018
Minimum [Member] | United Kingdom [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2018
Minimum [Member] | Philippines [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examination in progress	2017
Maximum [Member] | United States [Member] | United States - Federal [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2019
Maximum [Member] | United States [Member] | United States - State [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2019
Examination in progress	2018
Maximum [Member] | Canada [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2019
Maximum [Member] | Germany [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2019
Maximum [Member] | France [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2019
Maximum [Member] | United Kingdom [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examinations not yet initiated	2019
Maximum [Member] | Philippines [Member] | Foreign Tax Authority [Member]
Income Tax Examination [Line Items]
Examination in progress	2018