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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Class of Stock [Line Items]    
Preferred Stock, Shares Issued 12,634,000 12,600,000
Preferred Stock, Shares Outstanding 12,634,000 12,600,000
Trust shares, issued (shares) 75,807,000 75,753,000
Trust shares, par value (in dollars per share) $ 0  
Trust shares, authorized (shares) 500,000,000 500,000,000
Trust shares, outstanding (shares) 75,324,000 75,270,000
Preferred Stock, Shares Authorized 50,000,000 50,000,000
Preferred Stock, Shares Issued 12,634,000 12,600,000
Preferred Stock, Shares Outstanding 12,634,000 12,600,000
Accounts Receivable, Allowance for Credit Loss $ 10,416 $ 9,161
Accumulated Amortization, Debt Issuance Costs, Noncurrent $ 14,783 $ 13,779
Series A Preferred Stock    
Class of Stock [Line Items]    
Preferred Stock, Shares Issued 4,008,000 4,000,000
Preferred Stock, Shares Outstanding 4,008,000 4,000,000
Preferred Stock, No Par Value $ 0
Preferred Stock, Shares Issued 4,008,000 4,000,000
Preferred Stock, Shares Outstanding 4,008,000 4,000,000
Series B Preferred Stock [Member]    
Class of Stock [Line Items]    
Preferred Stock, Shares Issued 4,004,000 4,000,000
Preferred Stock, Shares Outstanding 4,004,000 4,000,000
Preferred Stock, No Par Value $ 0
Preferred Stock, Shares Issued 4,004,000 4,000,000
Preferred Stock, Shares Outstanding 4,004,000 4,000,000
Series C Preferred Stock [Member]    
Class of Stock [Line Items]    
Preferred Stock, Shares Issued 4,623,000 4,600,000
Preferred Stock, Shares Outstanding 4,623,000 4,600,000
Preferred Stock, No Par Value $ 0 $ 0
Preferred Stock, Shares Issued 4,623,000 4,600,000
Preferred Stock, Shares Outstanding 4,623,000 4,600,000