XML 92 R50.htm IDEA: XBRL DOCUMENT v3.22.1
Marketable Securities - Additional Information (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
USD ($)
condition
Dec. 31, 2021
USD ($)
condition
Marketable Securities [Abstract]    
Available-for-sale debt marketable securities contractual maturities less than one year less than one year
Number of securities in an unrealized loss position | condition 9 11
Aggregate fair value an unrealized loss position $ 24,800 $ 30,800
Allowance for credit losses 0 0
Interest income 200 300
Amortization of premium $ 100 $ 200