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CONSOLIDATED BALANCE SHEETS Parentheticals - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Condensed Balance Sheet Statements, Captions [Line Items]    
Allowance for Doubtful Accounts Receivable $ 8.1 $ 5.6
Short-term restricted cash (within other current assets) 4.9 4.8
Long-term restricted cash (within other assets) $ 0.1 $ 0.5
Preferred Stock, Shares Issued 4,600,000  
Series A junior participating preferred stock [Member]    
Condensed Balance Sheet Statements, Captions [Line Items]    
Preferred Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Preferred Stock, Shares Authorized 10,000,000 10,000,000
Preferred Stock, Shares Issued 0 0
Preferred Stock, Shares Outstanding 4,600 4,600
Series B Preferred Stock [Member]    
Condensed Balance Sheet Statements, Captions [Line Items]    
Preferred Stock, Par or Stated Value Per Share $ 0 $ 0
Preferred Stock, Shares Authorized 0 0
Preferred Stock, Shares Issued 0 0
Preferred Stock, Shares Outstanding 0 0
Class A Common Stock (Shares) [Member]    
Condensed Balance Sheet Statements, Captions [Line Items]    
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 1,000,000,000 1,000,000,000
Common Stock, Shares, Issued 358,929,000 358,599,000
Common Stock, Shares, Outstanding 358,929,000 358,599,000
Class B Common Stock (Shares) [Member]    
Condensed Balance Sheet Statements, Captions [Line Items]    
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 3,000 3,000
Common Stock, Shares, Issued 3,000 3,000
Common Stock, Shares, Outstanding 3,000 3,000