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Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Cash, Cash Equivalents and Restricted Cash as of:    
Cash and cash equivalents $ 26,202 $ 16,895
Restricted cash 192 9,579
Total cash, cash equivalents and restricted cash at the end of period $ 26,394 $ 26,474