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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parentheticals) - USD ($)
$ in Thousands
Jun. 30, 2018
Jun. 30, 2017
Current assets:    
Cash and cash equivalents $ 152,403 $ 266,605
Restricted cash (included in other current assets) 1,370 1,316
Total cash, cash equivalents and restricted cash $ 153,773 $ 267,921