Segment Reporting and Geographic Locations - Schedule of Revenue Concentration by Customer (Details) - Customer Concentration Risk - Revenues	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
A B Volvo
Segment Reporting Information [Line Items]
Percent of net revenues (as a percent)	22.00%	19.00%	17.00%
Daimler
Segment Reporting Information [Line Items]
Percent of net revenues (as a percent)	17.00%	16.00%	16.00%
Paccar
Segment Reporting Information [Line Items]
Percent of net revenues (as a percent)	11.00%	11.00%	10.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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