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Revenue (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2018
Disaggregation of Revenue [Line Items] |  |
Total revenue | $ 454,981,440 | $ 920,401,545
Automotive Segment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 444,245,425 | 899,210,799
Other Segment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 10,736,015 | 21,190,745
Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 444,245,425 | 899,210,799
Automotive Mirrors & Electronics | Automotive Segment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 396,547,385 | $ 800,789,013
Automotive Mirrors & Electronics | Automotive Segment | Minimum |  |
Disaggregation of Revenue [Line Items] |  |
Payment terms |  | 15 days
Automotive Mirrors & Electronics | Automotive Segment | Maximum |  |
Disaggregation of Revenue [Line Items] |  |
Payment terms |  | 90 days
HomeLink Modules | Automotive Segment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 47,698,040 | $ 98,421,786
Fire Protection Products | Other Segment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 5,813,210 | $ 11,092,868
Fire Protection Products | Other Segment | Minimum |  |
Disaggregation of Revenue [Line Items] |  |
Payment terms |  | 30 days
Fire Protection Products | Other Segment | Maximum |  |
Disaggregation of Revenue [Line Items] |  |
Payment terms |  | 75 days
Windows Products | Other Segment |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 4,922,805 | $ 10,097,877
Dimmable Aircraft Windows | Other Segment | Minimum |  |
Disaggregation of Revenue [Line Items] |  |
Payment terms |  | 30 days
Dimmable Aircraft Windows | Other Segment | Maximum |  |
Disaggregation of Revenue [Line Items] |  |
Payment terms |  | 45 days
U.S. | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 142,896,639 | $ 283,209,626
U.S. | Other Products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 10,736,015 | 21,190,746
Germany | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 85,642,205 | 177,435,746
Japan | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | 48,647,082 | 98,480,079
Other | Automotive Products |  |
Disaggregation of Revenue [Line Items] |  |
Total revenue | $ 167,059,499 | $ 340,085,348

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