CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
Convertible Preferred stock
Common Stock
Common Stock
Class B Common Stock
Common Stock
Class A Common Stock
Additional Paid-in Capital
Additional Paid-in Capital
Reverse Capitalization [Member]
Accumulated deficit
Accumulated other comprehensive income (loss)
Noncontrolling interest
Previously Reported [Member]
Previously Reported [Member]
Convertible Preferred stock
Previously Reported [Member]
Common Stock
Previously Reported [Member]
Additional Paid-in Capital
Reverse Capitalization [Member]
Previously Reported [Member]
Accumulated deficit
Previously Reported [Member]
Accumulated other comprehensive income (loss)
Previously Reported [Member]
Noncontrolling interest
Revision of Prior Period, Reclassification, Adjustment [Member]
Revision of Prior Period, Reclassification, Adjustment [Member]
Convertible Preferred stock
Revision of Prior Period, Reclassification, Adjustment [Member]
Common Stock
Revision of Prior Period, Reclassification, Adjustment [Member]
Additional Paid-in Capital
Reverse Capitalization [Member]
Revision of Prior Period, Reclassification, Adjustment [Member]
Accumulated deficit
Revision of Prior Period, Reclassification, Adjustment [Member]
Accumulated other comprehensive income (loss)
Revision of Prior Period, Reclassification, Adjustment [Member]
Noncontrolling interest
Balance at Dec. 31, 2018 $ (502,574) $ 447,747 $ 9       $ 25,313 $ (527,896) $ 0 $ 0     $ 5 $ (5)   $ 0 $ 0 $ (502,574) $ 447,747 $ 4 $ 25,318 $ (527,896) $ 0 $ 0
Balance (in shares) at Dec. 31, 2018   139,444,346 87,362,592                 72,017,208 45,119,147           67,427,138 42,243,445        
Stock issuance for exercise of stock options, net of early exercise liability $ 601 $ 0 $ 0       601 0 0 0                            
Stock issuance for exercise of stock options, net of early exercise liability (in shares) 916,527 0 443,179                                          
Retroactive application of reverse capitalization     473,348                                          
Stock-based compensation $ 3,301 $ 0 $ 0       3,301 0 0 0                            
Unrealized holdings gain on investment securities, available-for-sale 46 0 0       0 0 46 0                            
Beneficial conversion feature 373,826 0 0       373,826 0 0 0                            
Convertible debt conversion and other issuances 373,800                                              
Net loss (363,737) 0 0       0 (363,737) 0 0                            
Balance at Dec. 31, 2019 (488,537) $ 447,747 $ 9 $ 4 $ 0 $ 403,046 403,041 (891,633) 46 0 $ 0 $ 0 $ 5 (5) $ 0 0 0 (488,537) $ 447,747 $ 4 403,046 (891,633) 46 0
Balance (in shares) at Dec. 31, 2019   139,444,346 [1] 88,279,119 88,279,119 [1] 0             72,017,208 45,592,495           67,427,138 42,686,624        
Stock issuance for exercise of stock options, net of early exercise liability 155 $ 0   $ 0 $ 0 155   0 0 0                            
Stock issuance for exercise of stock options, net of early exercise liability (in shares)   0 [1]   74,587 [1] 0                                      
Stock-based compensation 1,977 $ 0   $ 0 $ 0 1,977   0 0 0                            
Unrealized holdings gain on investment securities, available-for-sale 1,723 0   0 0 0   0 1,723 0                            
Beneficial conversion feature 0 0   0 0 0   0 0 0                            
Interests issued 3,903 0   0 0 0   0 0 3,903                            
Net loss (28,162) 0   0 0 0   (28,162) 0 0                            
Balance at Mar. 31, 2020 (508,941) $ 447,747   $ 4 $ 0 405,178   (919,795) 1,769 3,903                            
Balance (in shares) at Mar. 31, 2020   139,444,346 [1]   88,353,707 [1] 0                                      
Balance at Dec. 31, 2019 (488,537) $ 447,747 $ 9 $ 4 $ 0 403,046 403,041 (891,633) 46 0 $ 0 $ 0 $ 5 $ (5) $ 0 $ 0 $ 0 $ (488,537) $ 447,747 $ 4 $ 403,046 $ (891,633) $ 46 $ 0
Balance (in shares) at Dec. 31, 2019   139,444,346 [1] 88,279,119 88,279,119 [1] 0             72,017,208 45,592,495           67,427,138 42,686,624        
Stock issuance for exercise of stock options, net of early exercise liability $ 1,748 $ 0 $ 0       1,748 0 0 0                            
Stock issuance for exercise of stock options, net of early exercise liability (in shares) 1,297,977 0 627,626                                          
Retroactive application of reverse capitalization     670,351                                          
Stock-based compensation $ 7,078 $ 0 $ 0       7,078 0 0 0                            
Buyback and subsequent cancellation of common shares, Value (957)             (957)                                
Buyback and subsequent cancellation of common shares, shares     (179,312)                                          
Retroactive application of reverse capitalization     (191,518)                                          
Unrealized holdings gain on investment securities, available-for-sale (36)               (36)                              
Interests issued 3,903                 3,903                            
Net loss (136,392)             (136,392)                                
Balance at Dec. 31, 2020 (613,193) $ 447,747 $ 9 $ 4 $ 0 411,872 $ 411,867 (1,028,982) 10 3,903                            
Balance (in shares) at Dec. 31, 2020   139,444,346 [1] 89,206,266 89,206,266 [1] 0                                      
Stock issuance for exercise of stock options, net of early exercise liability 1,282 $ 0   $ 0 $ 0 1,282   0 0 0                            
Stock issuance for exercise of stock options, net of early exercise liability (in shares)   0 [1]   0 [1] 761,480                                      
Stock-based compensation 42,713 $ 0   $ 0 $ 0 42,713   0 0 0                            
Unrealized holdings gain on investment securities, available-for-sale (493) 0   0 0 0   0 (493) 0                            
Preferred stock conversion 447,747 $ (447,747)   $ 14 $ 0 447,733   0 0 0                            
Preferred stock conversion (in shares)   (139,444,346) [1]   139,444,346 [1] 0                                      
Common stock issued related to warrants exercised 97,782 $ 0   $ 1 $ 0 97,781   0 0                              
Common stock issued related to warrants exercised (in shares)   0 [1]   7,205,490 [1] 0                                      
Convertible debt conversion and other issuances 16,059 $ 0   $ 7 $ 0 16,052   0 0 0                            
Convertible debt conversion and other issuances (in shares)   0 [1]   75,084,703 [1] 0                                      
Issuance of Common Stock in connection with Business Combination and PIPE offering 666,242 $ 0   $ 0 $ 15 666,227   0 0 0                            
Issuance of Common Stock in connection with Business Combination and PIPE offering (in shares)   0 [1]   (49,975,104) [1] 146,373,904                                      
Conversion from Class B Common Stock to Class A Common Stock (in shares)   0 [1]   (1,143,863) [1] 1,143,863                                      
Capital contribution for extinguishment of debt 126,795 $ 0   $ 0 $ 0 126,795   0 0 0                            
Acquisition of Public and Private Placement Warrants (147,582) 0   0 0 (147,582)   0 0 0                            
Net loss (48,417) 0   0 0 0   (48,417) 0 0                            
Balance at Mar. 31, 2021 $ 588,935 $ 0   $ 26 $ 15 $ 1,662,873   $ (1,077,399) $ (483) $ 3,903                            
Balance (in shares) at Mar. 31, 2021   0 [1]   259,821,838 [1] 148,279,247                                      
[1] Prior period results have been adjusted to reflect the exchange of Legacy Clover’s common stock for Clover Class B Common Stock at an exchange ratio of approximately 2.0681 in January 2021 as a result of the Business Combination. See Note 3, “Business combination,” for details.