Annual report pursuant to Section 13 and 15(d)

INTRODUCTION AND BASIS OF PRESENTATION - Introduction (Details)

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INTRODUCTION AND BASIS OF PRESENTATION - Introduction (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Jan. 19, 2024
Dec. 31, 2023
Dec. 31, 2022
Subsequent Event | 5.875% Convertible Notes | Convertible Debt      
Schedule of Equity Method Investments      
Repurchases of convertible debt $ 108.5    
Discontinued Operations, Held-for-Sale | MoGas Pipeline and Omega Pipeline Systems | Subsequent Event      
Schedule of Equity Method Investments      
Proceeds from divestiture of businesses $ 175.0    
Common Class A      
Schedule of Equity Method Investments      
Common stock, par value (in dollars per share)   $ 0.001  
Series A Cumulative Redeemable Preferred Stock      
Schedule of Equity Method Investments      
Common stock, par value (in dollars per share)   $ 0.001  
Preferred stock interest rate   7.375% 7.375%
Common Class B      
Schedule of Equity Method Investments      
Common stock, par value (in dollars per share)   $ 0.001 $ 0.001