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Consolidated Statements of Cash Flows (Cash Reconciliation) (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Reconciliation of cash, cash equivalents and restricted cash to the Consolidated Balance Sheets:        
Cash and cash equivalents $ 41,560 $ 23,531 $ 57,991  
Restricted cash 1,200 1,200 2,608  
Total cash, cash equivalents and restricted cash $ 42,760 $ 24,731 $ 60,599 $ 28,121