XML 49 R37.htm IDEA: XBRL DOCUMENT v3.21.2
Investments - Summary of Debt Securities Available for Sale and Held to Maturity (Detail)
$ in Thousands
Jun. 30, 2021
USD ($)
Debt Securities Available For Sale And Held To Maturity [Abstract]  
Available-for-Sale, Amortized Cost, One year or less $ 3,002
Available-for-sale, Amortized Cost, Total investments 3,002
Available-for-Sale, Estimated Fair Value, One year or less 3,003
Available-for-sale, Estimated Fair Value, Total investments $ 3,003