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Debt Long-term debt payable in the next five years (Details)
$ in Thousands
Jun. 30, 2019
USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]  
Long-term debt payable in 2020 $ 228
Long-term debt payable in 2021 32
Long-term debt payable in 2022 11
Long-term debt payable in 2023 300,006
Long-term debt payable in 2024 $ 575,006