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Basis of Presentation - Cash Equivalents (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Jun. 30, 2019
Cash Equivalents    
Cash and cash equivalents $ 85,142 $ 96,316
Cash, cash equivalents, and investments held by our foreign subsidiaries and subject to repatriation tax considerations(as a percentage) 71.00%