Quarterly report pursuant to Section 13 or 15(d)

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

v3.19.2
Consolidated Financial Statements Details - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Jun. 30, 2018
Dec. 31, 2017
Statement Of Financial Position [Abstract]        
Cash and cash equivalents $ 40,275 $ 37,539    
Long-term restricted cash 1,135 1,237    
Total cash, cash equivalents and restricted cash $ 41,410 $ 38,776 $ 52,692 $ 29,545