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Intangible assets and goodwill - Future Amortization (Details)
$ in Thousands
Jun. 30, 2020
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2020 $ 17,460
2021 34,920
2022 34,920
2023 34,920
2024 and thereafter 10,094
Total $ 132,314