XML 44 R31.htm IDEA: XBRL DOCUMENT v3.21.2
Marketable Debt Securities - Additional Information (Detail)
$ in Thousands
Nov. 20, 2021
USD ($)
security
Aug. 28, 2021
USD ($)
Marketable Debt Securities    
Available for sale securities debt maturity period range less than one year to approximately four years  
Number of securities available for sale loss position | security 20  
Unrealized loss on securities $ 260 $ 19
Marketable securities transferred $ 92,800