v3.26.1
Description of the Business (Details)
12 Months Ended
Aug. 31, 2026
USD ($)
Jun. 03, 2025
USD ($)
Dec. 03, 2021
USD ($)
shares
Dec. 31, 2025
USD ($)
segment
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Mar. 11, 2026
USD ($)
Aug. 31, 2025
USD ($)
Aug. 25, 2025
USD ($)
May 31, 2025
USD ($)
May 23, 2025
USD ($)
Feb. 25, 2025
USD ($)
Feb. 21, 2024
USD ($)
Jun. 30, 2021
USD ($)
Description Of The Business [Line Items]                            
Number of reportable segments | segment       1                    
Net loss       $ 57,334,000 $ 9,928,000 $ 89,322,000                
Net cash flow used in operations       18,748,000 20,679,000 6,103,000                
Unrestricted cash and cash equivalents       8,465,000 22,373,000 10,637,000                
Accumulated deficit       679,588,000 621,864,000                  
Current restricted cash       15,750,000 0 $ 0                
Unsecured Convertible Notes, Due 2026                            
Description Of The Business [Line Items]                            
Aggregate principal amount     $ 150,000,000.0                      
Convertible Debt                            
Description Of The Business [Line Items]                            
Aggregate principal amount                           $ 150,000,000.0
Debt instrument, repurchase amount       $ 30,000,000.0 $ 120,000,000.0             $ 300,000 $ 30,900,000  
Repayments of long-term debt   $ 30,900,000                        
Line of Credit | Secured Debt | Asset-Backed Term Loan                            
Description Of The Business [Line Items]                            
Aggregate principal amount                   $ 40,000,000.0 $ 40,000,000.0      
Minimum liquidity                     $ 5,000,000.0      
Line of Credit | Secured Debt | Asset-Backed Term Loan | Forecast                            
Description Of The Business [Line Items]                            
Repayments of long-term debt $ 15,000,000.0                          
Line of Credit | Secured Debt | Third Amended Credit Agreement | Subsequent Event                            
Description Of The Business [Line Items]                            
Minimum liquidity             $ 5,000,000.0              
Incremental loan commitment amount             5,000,000.0              
Line of Credit | Secured Debt | Third Amended Credit Agreement, All Times on or Prior to April 30, 2026 | Subsequent Event                            
Description Of The Business [Line Items]                            
Minimum liquidity             $ 3,500,000              
Line of Credit | Secured Debt | Second Amended Credit Agreement                            
Description Of The Business [Line Items]                            
Incremental loan commitment amount               $ 5,000,000.0 $ 5,000,000.0          
BuzzFeed, Inc.                            
Description Of The Business [Line Items]                            
Number of shares issued in exchange for each share (in shares) | shares     0.306                      
BuzzFeed, Inc. | Class A Common Stock, $0.0001 par value per share                            
Description Of The Business [Line Items]                            
Number of common shares issued (in shares) | shares     7,720,000                      
CM Partners, LLC                            
Description Of The Business [Line Items]                            
Membership interests acquired (as percent)     100.00%