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CONSOLIDATED BALANCE SHEETS (Parenthetical)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
USD ($)
vote
$ / shares
shares
Dec. 31, 2023
USD ($)
vote
$ / shares
shares
Accounts receivable - trade, allowance for credit losses | $ $ 3,881 $ 4,066
Accumulated depreciation and amortization | $ $ 1,196,561 $ 1,167,541
Class A Common Stock    
Common stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 100,000,000 100,000,000
Common stock, shares issued (in shares) 57,120,000 57,007,000
Common stock, shares outstanding (in shares) 57,120,000 57,007,000
Class B Common Stock    
Common stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 1,000,000 1,000,000
Common stock, shares issued (in shares) 988,000 988,000
Common stock, shares outstanding (in shares) 988,000 988,000
Votes per share held (in votes) | vote 10 10