Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation of Interim Period Statements - Schedule of Reconciles of Cash, Cash Equivalents and Restricted Cash Balances (Detail)

v3.20.2
Basis of Presentation of Interim Period Statements - Schedule of Reconciles of Cash, Cash Equivalents and Restricted Cash Balances (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Sep. 30, 2019
Dec. 31, 2018
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]        
Cash and cash equivalents $ 61,193 $ 44,570 $ 35,452 $ 35,371
Restricted cash, included in restricted cash and investments 127,085 228,771 200,051 105,331
Total cash, cash equivalents and restricted cash shown in the statement of cash flows $ 188,278 $ 273,341 $ 235,503 $ 140,702