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CONSOLIDATED BALANCE SHEETS (Parenthetical)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
USD ($)
vote
$ / shares
shares
Dec. 31, 2022
USD ($)
vote
$ / shares
shares
Accounts receivable - trade, allowance for credit losses | $ $ 4,066 $ 3,016
Accumulated depreciation and amortization | $ $ 1,167,541 $ 1,064,756
Class A Common Stock    
Common stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01
Common stock, authorized shares 100,000,000 100,000,000
Common stock, issued shares 57,007,000 50,704,000
Common stock, outstanding shares 57,007,000 50,704,000
Common stock, votes (in votes per share) | vote 1  
Class B Common Stock    
Common stock, par value (in dollars per share) | $ / shares $ 0.01 $ 0.01
Common stock, authorized shares 1,000,000 1,000,000
Common stock, issued shares 988,000 988,000
Common stock, outstanding shares 988,000 988,000
Common stock, votes (in votes per share) | vote 10 10