v3.20.2

Leases - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Lease expense | $ 1,926 | $ 2,017 | $ 5,816 | $ 5,956 |
Weighted-average remaining lease term, operating leases | 6 years 3 months 18 days |  | 6 years 3 months 18 days |  | 6 years 8 months 12 days
Weighted-average remaining lease term, financing leases | 4 years |  | 4 years |  | 4 years 6 months
Weighted-average discount rate for operating leases | 7.20% |  | 7.20% |  | 7.20%
Weighted-average discount rate for financing leases | 6.70% |  | 6.70% |  | 6.80%
Cost of Sales |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Lease expense | $ 1,400 | 1,600 | $ 4,900 | 5,200 |
Research, Development And Engineering Expense |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Lease expense | 400 | 300 | 500 | 500 |
Selling, General and Administrative Expenses |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Lease expense | 100 | 100 | 200 | 200 |
Interest Expense |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |
Lease expense | $ 100 | $ 100 | $ 100 | $ 100 |

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