Quarterly report pursuant to Section 13 or 15(d)

Consolidated Financial Statements Details - Schedule of Cash, Cash Equivalents and Restricted Cash (Details)

v3.19.1
Consolidated Financial Statements Details - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Dec. 31, 2017
Statement Of Financial Position [Abstract]        
Cash and cash equivalents $ 39,844 $ 37,539    
Long-term restricted cash 1,159 1,237    
Total cash, cash equivalents and restricted cash $ 41,003 $ 38,776 $ 21,026 $ 29,545