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v3.20.1

Contingencies (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) |  |  |  |
Balance as of December 31, 2019 | $ 1,835,000 |  |  |
Product warranty accruals and adjustments | 14,000 |  |  |
Settlements | (97,000) |  |  |
Balance as of March 31, 2020 | 1,752,000 |  |  |
Loss Contingencies |  |  |  |
Increase (Decrease) in Due to Related Parties |  | $ 3,300,000 |  |
Due to Related Parties | 58,600,000 |  | $ 89,900,000 | $ 86,500,000
due to related party | 16,115,000 |  | 27,857,000 |
Long-term debt - affiliate | 42,479,000 |  | $ 62,014,000 |
Minimum |  |  |  |
Loss Contingencies |  |  |  |
Potential loss liability | 60,000,000 |  |  |
Maximum |  |  |  |
Loss Contingencies |  |  |  |
Potential loss liability | $ 85,000,000 |  |  |
Profit Units [Member] | Long-term Incentive Plan [Member] |  |  |  |
Loss Contingencies |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 30,000 |  |  |
Threshold Value | $ 855,000,000 |  |  |

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