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Long-Lived Assets and Impairment (Details 1)
$ in Thousands
Sep. 30, 2018
USD ($)
Amortization expense for the remainder of the year and for the next five years  
2018 $ 1,511
2019 4,872
2020 2,371
2021 1,499
2022 902
Thereafter 132
Total $ 11,287