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Other Liabilities - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Jan. 07, 2021
Business Acquisition [Line Items]    
Uncertain tax liabilities assumed in acquisition related DPAD   $ 21.9
ION Media    
Business Acquisition [Line Items]    
Uncertain tax position liabilities assumed in acquisition   $ 26.1
Tax settlement related to DPAD $ 17.2  
Increases (decreases) from lapse in statute of limitations $ 4.7