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Future amortization expense (Details 3)
$ in Thousands
Sep. 30, 2020
USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
Remainder of 2020 $ 2,462
2021 4,579
2022 4,108
2023 3,975
2024 3,653
Thereafter $ 7,599