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GOVERNMENT SUPPORT AND SPECTRUM MATTERS - Communication Services Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | $ 166,927 | $ 164,602 | $ 498,051 | $ 506,876
High cost support | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 5,436 | 4,867 | 14,335 | 14,591
High cost support | US Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 4,073 | 3,473 | 10,289 | 10,411
High cost support | International Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 1,363 | 1,394 | 4,046 | 4,180
CAF II (including ACF) | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 8,254 | 6,731 | 24,650 | 20,303
CAF II (including ACF) | US Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 8,254 | 6,731 | 24,650 | 20,303
RDOF | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 75 | 175 | 219 | 465
RDOF | US Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 75 | 175 | 219 | 465
ECF | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer |  |  |  | 7,312
ECF | US Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer |  |  |  | 7,312
Rural Health Care ("RHC") | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 3,790 | 4,420 | 12,505 | 11,539
Rural Health Care ("RHC") | US Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 3,790 | 4,420 | 12,505 | 11,539
Other | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 1,335 | 1,911 | 4,548 | 10,789
Other | US Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 1,332 | 1,908 | 4,536 | 10,316
Other | International Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 3 | 3 | 12 | 473
USF, CAF II, RDOF, ECF, RHC and Other Programs | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 18,890 | 18,104 | 56,257 | 64,999
USF, CAF II, RDOF, ECF, RHC and Other Programs | US Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | 17,524 | 16,707 | 52,199 | 60,346
USF, CAF II, RDOF, ECF, RHC and Other Programs | International Telecom | Communication services |  |  |  |
GOVERNMENT SUPPORT AND SPECTRUM MATTERS |  |  |  |
Revenue from contract with customer | $ 1,366 | $ 1,397 | $ 4,058 | $ 4,653

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