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RESTRUCTURING AND RELATED CHARGES - Schedule of Restructuring Costs by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Restructuring Cost and Reserve [Line Items] |  |
Employee Severance and Benefit Costs | $ 6,902 |
Legal and Advisory Costs | 785 |
Lease-related Charges (Credits) | (265) |
Restructuring and related charges | 7,422 | $ 6
North America |  |
Restructuring Cost and Reserve [Line Items] |  |
Employee Severance and Benefit Costs | 442 |
Legal and Advisory Costs | 807 |
Lease-related Charges (Credits) | 741 |
Restructuring and related charges | 1,990 |
International |  |
Restructuring Cost and Reserve [Line Items] |  |
Employee Severance and Benefit Costs | 6,460 |
Legal and Advisory Costs | (22) |
Lease-related Charges (Credits) | (1,006) |
Restructuring and related charges | $ 5,432 |

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