Quarterly report pursuant to Section 13 or 15(d)

Cash and Cash Equivalents - Additional Information (Details)

v3.21.1
Cash and Cash Equivalents - Additional Information (Details)
3 Months Ended
Mar. 31, 2021
USD ($)
item
Mar. 31, 2020
USD ($)
item
Investments Debt And Equity Securities [Abstract]    
Realized gains (losses) | $ $ 0 $ 0
Number of investments adjusted for other-than-temporary declines in fair value | item 0 0