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Nature of Operations (Details)
circuitMile in Thousands, people in Millions, home in Millions, $ in Millions
 1 Months Ended 12 Months Ended
Apr. 20, 2023
county
Jan. 31, 2025
USD ($)
county
Jun. 30, 2024
USD ($)
circuitMile
people
county
home
Mar. 31, 2025
county
Mar. 31, 2024
county
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Broadband licenses granted, number of counties       67 28
Lower Colorado River Authority (LCRA) | Wireless Licenses          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Broadband licenses granted, number of counties 68 34      
Broadband licenses granted, estimated consideration | $   $ 13.5      
Oncor Electric Delivery Company LLC          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Broadband licenses granted, number of counties       4  
Oncor Electric Delivery Company LLC | Wireless Licenses          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Broadband licenses granted, number of counties     95 4  
Broadband licenses granted, estimated consideration | $     $ 102.5    
Broadband licenses granted, initial consideration received | $     $ 10.0    
Number of transmission and distribution lines | circuitMile     143    
Number of homes served | home     4    
Population served | people     13