Fair Value Measurements (Tables)
 3 Months Ended
Mar. 31, 2022
Fair Value Disclosures [Abstract]  
Summary of Fair Value Measurements for Items
The following table presents a summary of fair value measurements for financial instruments as of March 31, 2022, and December 31, 2021, respectively:
March 31, 2022Level 1Level 2Level 3
Total fair
value
(in thousands)
U.S. government and government agencies$— $236,100 $— $236,100 
Total assets at fair value$— $236,100 $— $236,100 
December 31, 2021Level 1Level 2Level 3
Total fair
value
(in thousands)
U.S. government and government agencies$— $196,735 $— $196,735 
Total assets at fair value$— $196,735 $— $196,735 
Schedule of Changes in Balances of Level 3 Financial Liabilities The changes in balances of Legacy Clover's Level 3 financial liabilities during the three months ended March 31, 2021, were as follows:
Convertible securitiesDerivative liabilitiesWarrants payableTotal
(in thousands)
Balance, December 31, 2020
$949,553 $44,810 $97,782 $1,092,145 
Issuances— — — — 
Settlements(949,553)(44,810)(97,782)(1,092,145)
Transfers in— — — — 
Transfers out— — — — 
Total realized losses (gains)— — — — 
Balance, March 31, 2021
$— $— $— $—