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v3.20.2

Special Charges - Additional Information (Details) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) employee | Sep. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |  |
Special charges | $ 7,103,000 | $ 0 | $ 7,103,000 | $ 0
Non cash charges |  |  | $ 4,400,000 |
Restructuring charge, payment term |  |  | 12 months |
Contract Termination |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Special charges |  |  | $ 4,700,000 |
Employee Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Special charges |  |  | $ 2,400,000 |
Reduction in workforce | employee |  |  | 16 |

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