v3.26.1
GOVERNMENT SUPPORT AND SPECTRUM MATTERS - Communication Services Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer $ 167,948 $ 164,639
High cost support | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 3,475 4,427
High cost support | US Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 3,475 3,115
High cost support | International Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer   1,312
CAF II (including ACF) | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 8,268 8,170
CAF II (including ACF) | US Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 8,268 8,170
RDOF | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 75 75
RDOF | US Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 75 75
Rural Health Care ("RHC") | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 6,318 4,363
Rural Health Care ("RHC") | US Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 6,318 4,363
Other | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 1,445 1,641
Other | US Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 1,442 1,636
Other | International Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 3 5
USF, CAF II, RDOF, ECF, RHC and Other Programs | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 19,581 18,676
USF, CAF II, RDOF, ECF, RHC and Other Programs | US Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer 19,578 17,359
USF, CAF II, RDOF, ECF, RHC and Other Programs | International Telecom | Communication services    
GOVERNMENT SUPPORT AND SPECTRUM PROGRAMS    
Revenue from contract with customer $ 3 $ 1,317