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Basis of Presentation - Narrative (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Accounting Policies [Abstract]        
Cash, cash equivalents, and restricted cash $ 45,712 $ 26,978 $ 35,084 $ 18,286
Cash and cash equivalents 45,623 $ 26,889    
Restricted cash $ 100