XML 36 R26.htm IDEA: XBRL DOCUMENT v3.10.0.1
Basis of Presentation and Significant Accounting Policies - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations [Abstract]        
Cash and cash equivalents $ 63,897 $ 69,418 $ 112,616 $ 163,620
Restricted cash 3,111 2,475 2,475 2,375
Total cash, cash equivalents and restricted cash shown in the statements of cash flows $ 67,008 $ 71,893 $ 115,091 $ 165,995