XML 51 R37.htm IDEA: XBRL DOCUMENT v3.20.2
Cash, Cash Equivalents, Restricted Cash and Marketable Securities - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]        
Cash and cash equivalents $ 60,485 $ 39,884 $ 34,225 $ 49,348
Restricted cash 217 216 628 619
Total cash, cash equivalents and restricted cash shown in the condensed consolidated statements of cash flows $ 60,702 $ 40,100 $ 34,853 $ 49,967