Quarterly report pursuant to Section 13 or 15(d)

Cash and Restricted Cash - Summary of Reconciliation of Cash and Restricted Cash (Detail)

v3.19.1
Cash and Restricted Cash - Summary of Reconciliation of Cash and Restricted Cash (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Dec. 31, 2017
Cash And Cash Equivalents [Abstract]        
Cash and cash equivalents $ 8,875 $ 13,560 $ 7,778  
Restricted cash 4,139 505 422  
Total cash and restricted cash $ 13,014 $ 14,065 $ 8,200 $ 9,459