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v3.20.1

Revenue (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 453,761,726 | $ 468,588,997
Automotive Segment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 439,855,587 | 455,798,643
Other Segment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 13,906,139 | 12,790,354
Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 439,855,587 | 455,798,643
Automotive Mirrors & Electronics | Automotive Segment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 401,085,314 | 408,971,666
HomeLink Modules | Automotive Segment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 38,770,273 | 46,826,977
Fire Protection Products | Other Segment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 6,168,751 | 5,852,232
Windows Products | Other Segment |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 7,737,388 | 6,938,122
U.S. | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 135,581,918 | 141,383,064
U.S. | Other Products |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 13,906,139 | 12,790,354
Germany | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 72,785,724 | 78,449,927
Japan | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 51,136,933 | 56,333,694
Mexico | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | 45,950,481 | 44,410,388
Other | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Revenue | $ 134,400,531 | $ 135,221,570

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