v3.26.1
FAIR VALUE MEASUREMENTS - Company`s Cash, Cash Equivalents and Marketable Securities by Significant Investment (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis $ 84,255 $ 92,529    
Unrealized Gains 10 59    
Unrealized Losses (53) (2)    
Fair Value 84,212 92,586    
Cash and cash equivalents [1] 31,411 37,352    
Cash, Cash Equivalents and Restricted Cash 31,411 37,352 $ 60,077 $ 76,692
Marketable securities 52,801 55,234    
Fair Value, Inputs, Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 31,663 37,279    
Unrealized Gains 0 0    
Unrealized Losses (1) 0    
Fair Value 31,662 37,279    
Cash, Cash Equivalents and Restricted Cash 29,811 36,293    
Marketable securities 1,851 986    
Fair Value, Inputs, Level 2        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 50,992 54,191    
Unrealized Gains 10 59    
Unrealized Losses (52) (2)    
Fair Value 50,950 54,248    
Cash, Cash Equivalents and Restricted Cash 0 0    
Marketable securities 50,950 54,248    
Fair Value, Inputs, Level 2 | Certificates of deposit        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 338 1,201    
Unrealized Gains 0 1    
Unrealized Losses 0 0    
Fair Value 338 1,202    
Cash, Cash Equivalents and Restricted Cash 0 0    
Marketable securities 338 1,202    
Cash        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 1,600 1,059    
Unrealized Gains 0 0    
Unrealized Losses 0 0    
Fair Value 1,600 1,059    
Cash, Cash Equivalents and Restricted Cash 1,600 1,059    
Marketable securities 0 0    
Money Market Funds | Fair Value, Inputs, Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 29,811 36,293    
Unrealized Gains 0 0    
Unrealized Losses 0 0    
Fair Value 29,811 36,293    
Cash, Cash Equivalents and Restricted Cash 29,811 36,293    
Marketable securities 0 0    
Commercial Paper | Fair Value, Inputs, Level 1        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 1,852 986    
Unrealized Gains 0 0    
Unrealized Losses (1) 0    
Fair Value 1,851 986    
Cash, Cash Equivalents and Restricted Cash 0 0    
Marketable securities 1,851 986    
US Treasury Securities | Fair Value, Inputs, Level 2        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 5,755 3,783    
Unrealized Gains 0 2    
Unrealized Losses (6) 0    
Fair Value 5,749 3,785    
Cash, Cash Equivalents and Restricted Cash 0 0    
Marketable securities 5,749 3,785    
Government Agencies Debt Securities | Fair Value, Inputs, Level 2        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 19,307 14,988    
Unrealized Gains 6 28    
Unrealized Losses (6) 0    
Fair Value 19,307 15,016    
Cash, Cash Equivalents and Restricted Cash 0 0    
Marketable securities 19,307 15,016    
Corporate Debt Securities | Fair Value, Inputs, Level 2        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Adjusted Cost Basis 25,592 34,219    
Unrealized Gains 4 28    
Unrealized Losses (40) (2)    
Fair Value 25,556 34,245    
Cash, Cash Equivalents and Restricted Cash 0 0    
Marketable securities $ 25,556 $ 34,245    
[1] Talkspace, Inc's condensed consolidated balance sheets include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations of these VIEs and liabilities of consolidated VIEs for which creditors may have recourse to Talkspace, Inc. or its affiliates. At March 31, 2026 (unaudited) and December 31, 2025, assets of these consolidated VIEs totaled $21,285 and $13,625, respectively. At March 31, 2026 (unaudited) and December 31, 2025, liabilities of these consolidated VIEs totaled $5,358 and $3,755, respectively. See Note 11, “Variable Interest Entities,” in the notes to the condensed consolidated financial statements for further details.