v3.26.1
Summary of Significant Accounting Policies - Noncontrolling Interest (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Significant Accounting Policies [Line Items]          
Income tax (benefit) expense $ (156) $ 613 $ (94) $ 1,651  
Marketwise, LLC          
Significant Accounting Policies [Line Items]          
Ownership percentage in subsidiary 17.00% 14.80% 17.00% 14.80% 15.20%
Noncontrolling interest ownership (as a percent) 83.00% 85.20% 83.00% 85.20%