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Short-term and long-term debt - Maturities of long-term debt and capital lease obligations (Details)
$ in Thousands
Sep. 30, 2019
USD ($)
Short-term and long-term debt  
-2020 $ 2,114
-2021 2,105
-2022 2,100
-2023 2,100
-2024 93,712
Total $ 102,131