v3.20.2

RESTRUCTURING CHARGES - Restructuring charges (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total restructuring charges | $ 1,206 | $ 1,577 | $ 10,310 | $ 5,953
Workforce reduction |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total restructuring charges | 1,149 | 1,489 | 10,218 | 5,283
Other restructuring costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Total restructuring charges | $ 57 | $ 88 | $ 92 | $ 670

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