Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Summary of Fair Value Measurements
The following table presents information about the Company’s liabilities that are measured at fair value on a recurring basis at December 31, 2021 and 2020 and indicates the fair value hierarchy of the valuation inputs the Company utilized to determine such fair value:
 
(in thousands)
   
Level
     
December 31, 2021
     
December 31, 2020
  
Liabilities:
                           
Warrant liability — Private Placement Warrants
      3      $ 4,070      $ —    
Warrant liability — warrants to purchase Old Talkspace’s preferred D shares
      3        —          444  
Summary of warrants
The following table presents the changes in the fair value of warrant liabilities during the year ended December 31, 2021:
 
(in thousands)
   
Private
Placement
    
Old Talkspace Warrants
  
Balance at December 31, 2020
    $ —       $ 444  
Acquired in Business Combination
      32,399       —    
Issued in connection with closing of the Forward Purchase Agreement
      7,879       —    
Change in value
      (36,208 )      165  
Converted into equity
      —         (609 ) 
    
 
 
    
 
 
  
Balance at December 31, 2021
    $ 4,070     $ —