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Foreign Currency Transaction Exposure (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Currency Transaction Gains (Losses) [Line Items] |  |  |  |
Currency transaction losses, net | $ (5,181) | $ (2,672) | $ (12,493) | $ (11,025)
Operating income/loss |  |  |  |
Currency Transaction Gains (Losses) [Line Items] |  |  |  |
Currency transaction losses, net | (4,855) | (2,119) | (7,358) | (8,037)
Other non-operating income/expense, net |  |  |  |
Currency Transaction Gains (Losses) [Line Items] |  |  |  |
Currency transaction losses, net | $ (326) | $ (553) | $ (5,135) | $ (2,988)

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