DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Subscriber System Assets (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Accounting Policies [Abstract] | ||
| Gross carrying amount | $ 7,258,025 | $ 7,145,662 |
| Accumulated depreciation | (4,562,366) | (4,354,783) |
| Subscriber system assets, net | $ 2,695,659 | $ 2,790,879 |