v3.25.1
SUPPLEMENTAL SCHEDULES (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Balance Sheet Related Disclosures [Abstract]        
Current assets $ 769,341   $ 730,992  
Total assets 31,684,888   31,701,370  
Current liabilities 2,154,872   2,254,796  
Long-term debt, net of current maturities 25,154,002   24,872,015  
Total liabilities 32,211,080   32,158,202  
Noncontrolling interests 16,808   12,403  
Total liabilities and stockholders' deficiency 31,684,888   31,701,370  
Income Statement [Abstract]        
Revenue 2,152,282 $ 2,250,935    
Operating income 343,458 393,154    
Other expense, net (430,693) (403,126)    
Income (loss) before income taxes (87,235) (9,972)    
Income tax benefit (expense) 15,964 (2,924)    
Net loss (71,271) (12,896)    
Net loss (income) attributable to noncontrolling interests (4,405) (8,297)    
Net loss attributable to CSC Holdings, LLC sole member (75,676) (21,193)    
Restricted Group        
Balance Sheet Related Disclosures [Abstract]        
Current assets 642,344      
Long term assets 29,360,689      
Total assets 30,003,033      
Current liabilities 2,086,195      
Long-term debt, net of current maturities 23,627,553      
Long-term liabilities 4,719,232      
Total liabilities 30,432,980      
Total member's deficiency (429,947)      
Noncontrolling interests 0      
Total deficiency (429,947)      
Total liabilities and stockholders' deficiency 30,003,033      
Income Statement [Abstract]        
Revenue 2,036,887 2,141,083    
Operating expenses 1,728,568 1,779,763    
Operating income 308,319 361,320    
Other expense, net (406,828) (387,108)    
Income (loss) before income taxes (98,509) (25,788)    
Income tax benefit (expense) 17,430 (811)    
Net loss (81,079) (26,599)    
Net loss (income) attributable to noncontrolling interests 0 0    
Net loss attributable to CSC Holdings, LLC sole member (81,079) (26,599)    
Unrestricted Group        
Balance Sheet Related Disclosures [Abstract]        
Current assets 182,474      
Long term assets 1,583,588      
Total assets 1,766,062      
Current liabilities 207,399      
Long-term debt, net of current maturities 1,526,449      
Long-term liabilities 132,308      
Total liabilities 1,866,156      
Total member's deficiency (118,270)      
Noncontrolling interests 18,176      
Total deficiency (100,094)      
Total liabilities and stockholders' deficiency 1,766,062      
Income Statement [Abstract]        
Revenue 117,681 111,894    
Operating expenses 84,072 80,071    
Operating income 33,609 31,823    
Other expense, net (24,761) (15,103)    
Income (loss) before income taxes 8,848 16,720    
Income tax benefit (expense) (978) (2,113)    
Net loss 7,870 14,607    
Net loss (income) attributable to noncontrolling interests (4,854) (9,120)    
Net loss attributable to CSC Holdings, LLC sole member 3,016 5,487    
Eliminations        
Balance Sheet Related Disclosures [Abstract]        
Current assets (65,317)      
Long term assets (15,094)      
Total assets (80,411)      
Current liabilities (68,507)      
Long-term debt, net of current maturities 0      
Long-term liabilities (10,469)      
Total liabilities (78,976)      
Total member's deficiency (67)      
Noncontrolling interests (1,368)      
Total deficiency (1,435)      
Total liabilities and stockholders' deficiency (80,411)      
Income Statement [Abstract]        
Revenue (2,286) (2,042)    
Operating expenses (2,297) (2,053)    
Operating income 11 11    
Other expense, net (519) (915)    
Income (loss) before income taxes (508) (904)    
Income tax benefit (expense) 0 0    
Net loss (508) (904)    
Net loss (income) attributable to noncontrolling interests 449 823    
Net loss attributable to CSC Holdings, LLC sole member (59) (81)    
CSC Holdings        
Balance Sheet Related Disclosures [Abstract]        
Current assets 759,501   721,581  
Long term assets 30,929,183      
Total assets 31,688,684   31,706,411  
Current liabilities 2,225,087   2,327,377  
Long-term debt, net of current maturities 25,154,002   24,872,015  
Long-term liabilities 4,841,071      
Total liabilities 32,220,160   32,166,031  
Total member's deficiency (548,284)      
Noncontrolling interests 16,808   12,403  
Total deficiency (531,476) (438,611) (459,620) $ (437,925)
Total liabilities and stockholders' deficiency 31,688,684   $ 31,706,411  
Income Statement [Abstract]        
Revenue 2,152,282 2,250,935    
Operating expenses 1,810,343 1,857,781    
Operating income 341,939 393,154    
Other expense, net (432,108) (403,126)    
Income (loss) before income taxes (90,169) (9,972)    
Income tax benefit (expense) 16,452 (2,924)    
Net loss (73,717) (12,896)    
Net loss (income) attributable to noncontrolling interests (4,405) (8,297)    
Net loss attributable to CSC Holdings, LLC sole member $ (78,122) $ (21,193)