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BALANCE SHEET INFORMATION - Schedule of Other current assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Mar. 31, 2019
Insurance receivable $ 8,950 $ 8,950
Prepayments 4,688 3,856
Other current assets 18,305 18,095
Total other current assets $ 18,305 $ 18,095