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Restructuring charges - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ 45,390 | $ 31,143 | $ 31,105
Restructuring reserve | 6,999 | $ 6,022 | $ 10,311
Lease Liability |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring reserve | 3,000 |  |
Restructuring reserve, current | 1,000 |  |
Restructuring reserve, noncurrent | 2,000 |  |
Workforce reductions |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring reserve | 4,000 |  |
2021 Restructuring Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 45,400 |  |
Severance costs | 34,100 |  |
Other restructuring costs | $ 11,300 |  |

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