XML 40 R25.htm IDEA: XBRL DOCUMENT v3.21.1
Basis of Presentation and Significant Accounting Policies - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Dec. 31, 2019
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations [Abstract]        
Cash and cash equivalents $ 304,487 $ 326,028 $ 173,059 $ 189,680
Restricted cash 5,770 5,770 5,770 4,787
Total cash, cash equivalents and restricted cash shown in the statement of cash flows $ 310,257 $ 331,798 $ 178,829 $ 194,467