v3.26.1
PENSION AND POST-RETIREMENT BENEFIT PLANS - Narrative (Details)
£ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Dec. 31, 2025
USD ($)
plan
Dec. 31, 2025
GBP (£)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Discretionary matching contribution   $ 0   $ 0 $ 0
IPC Plan          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Employer contributions | £     £ 5.8    
IAC Retirement Savings Plan          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Employee contribution limit per calendar year (up to) (as a percent of pre-tax earnings)   50.00% 50.00%    
Employer contribution per dollar employee contributes up to contribution limit   100.00% 100.00%    
Employer contribution limit per calendar year (as a percent of compensation)   10.00% 10.00%    
Meredith Savings and Investment Plan          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Employer contribution per dollar employee contributes up to contribution limit       100.00%  
Employer contribution limit per calendar year (as a percent of compensation)   5.00% 5.00% 5.00%  
Employer contribution limit per calendar year, amount   $ 10,000      
Pension          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Remaining assets transferred from retirement assets plan       $ 16,000,000.0  
Asset allocation amount $ 2,300,000 $ 13,900,000      
United States          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Number of plans | plan   2      
Defined benefit plan, accumulated benefit obligation   $ 3,200,000   3,600,000  
United States | IAC Retirement Savings Plan          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Employer contribution limit per calendar year, amount   10,000      
Defined contribution plan contributions   22,100,000   22,500,000 21,600,000
United States | Pension          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Remaining assets transferred from retirement assets plan   0   15,968,000  
Employer contributions   $ 666,000   489,000  
U.K.          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Number of plans | plan   2      
Defined benefit plan, accumulated benefit obligation   $ 468,700,000   420,600,000  
U.K. | IAC Retirement Savings Plan          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Defined contribution plan contributions   300,000   300,000 $ 200,000
U.K. | Pension          
Defined Benefit Plan and Defined Contribution Plan Disclosures          
Remaining assets transferred from retirement assets plan   0   0  
Employer contributions   $ 186,000   $ 172,000