XML 91 R34.htm IDEA: XBRL DOCUMENT v3.24.3
Intangible Assets - Narrative (Details)
 3 Months Ended 6 Months Ended
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2024
USD ($)
county
Sep. 30, 2023
USD ($)
county
Mar. 31, 2024
USD ($)
Acquired Indefinite-lived Intangible Assets [Line Items]          
Impairment $ 0 $ 0 $ 0 $ 0  
Broadband licenses granted, number of counties | county     1 14  
Exchanges - licenses received     $ 126,000 $ 24,146,000  
Gain on disposal of intangible assets, net 0 (8,513,000) (93,000) (19,298,000)  
Licenses exchanged     33,000 4,848,000  
Sale of intangible assets     0 25,178,000  
Gain on disposal of intangible assets 0 7,332,000 0 7,332,000  
Deferred gain on sale of intangible assets $ 4,911,000   4,911,000   $ 4,911,000
SDG&E | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement          
Acquired Indefinite-lived Intangible Assets [Line Items]          
Delivery delay adjustments   1,100,000      
Licensing Agreements          
Acquired Indefinite-lived Intangible Assets [Line Items]          
Exchanges - licenses received     100,000 24,100,000  
Licenses exchanged     $ 0 $ 4,800,000  
Sale of intangible assets   44,000,000      
Reduction of intangible assets   31,800,000      
Gain on disposal of intangible assets   $ 7,300,000