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Pensions - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Accumulated benefit obligations $ 320,242 $ 408,950  
Net actuarial gain $ 31,100    
Expected return on plan assets, net of administrative expenses 4.08% 4.04% 3.18%
Savings plan expense $ 7,700 $ 9,000 $ 9,200
Pension Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Accumulated benefit obligations 366,800 $ 409,000  
Pension Plan | Qualified plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Expected future employer contribution, next fiscal year 6,000    
Pension Plan | Non-qualified plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Expected future employer contribution, next fiscal year $ 500    
Consolidated Pension Plan Of Dex Media      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Expected return on plan assets, net of administrative expenses 5.00%    
Actual return on plan assets 6.00% 7.20%  
YP Pension Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Expected return on plan assets, net of administrative expenses 5.90%    
Actual return on plan assets (1.00%) 6.90%  
Weighted Average      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Expected return on plan assets, net of administrative expenses 5.20%