v3.26.1
EQUITY INVESTMENTS - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Dec. 20, 2024
May 31, 2026
Aug. 31, 2025
Jul. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Jan. 31, 2026
Dec. 31, 2025
Jun. 30, 2024
Net Investment Income [Line Items]                          
Proceeds from sales of equity investments                 $ 1,112 $ 10,702      
Gain on sale of equity investment             $ 0 $ 0 0 3,199      
Loss on fair value adjustment of equity investment             7,623 $ 0 $ 7,623 $ 0      
Subsidiary Of MBI                          
Net Investment Income [Line Items]                          
Proceeds from debt           $ 100,000              
Point Broadband                          
Net Investment Income [Line Items]                          
Unrealized gain (loss) on investments             $ 7,600            
Equity method investment, ownership percentage (in percent)             15.00%   15.00%     0.00%  
Cumulative upward adjustments             $ 72,400   $ 72,400        
MBI                          
Net Investment Income [Line Items]                          
Equity method investment, ownership percentage (in percent)             45.00%   45.00%   55.00% 45.00% 45.00%
Additional purchase of common units $ 250,000                        
Discount rate             12.00%   12.00%        
Loss on fair value adjustment of equity investment             $ 349,800            
Cumulative downward adjustments             476,200   $ 476,200        
Equity method investment, difference between carrying amount and underlying equity             $ (5,900)   $ (5,900)     $ 343,800  
Northwest Fiber Holdco LLC                          
Net Investment Income [Line Items]                          
Proceeds from sales of equity investments     $ 109,900                    
Gain on sale of equity investment     $ 59,900                    
MetroNet                          
Net Investment Income [Line Items]                          
Proceeds from sales of equity investments       $ 14,100                  
Gain on sale of equity investment       $ 7,100                  
CTI Investment                          
Net Investment Income [Line Items]                          
Proceeds from sales of equity investments         $ 11,100                
Gain on sale of equity investment         $ 3,600                
Nextlink                          
Net Investment Income [Line Items]                          
Equity method investment, ownership percentage (in percent)             22.00%   22.00%     22.00%  
Cumulative upward adjustments             $ 6,900   $ 6,900        
Clearwave Fiber                          
Net Investment Income [Line Items]                          
Unrealized gain (loss) on investments             (67,700)   (67,700)        
Loss on fair value adjustment of equity investment                 $ 28,000        
Point-Clearwave Fiber                          
Net Investment Income [Line Items]                          
Unrealized gain (loss) on investments             $ (60,100)            
Loss on fair value adjustment of equity investment   $ 7,600