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LONG-TERM DEBT (Details) $ in Thousands | Mar. 26, 2020 USD ($) | Apr. 10, 2019 USD ($) | May 22, 2017 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Jul. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Jul. 01, 2016 USD ($)
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Long-term debt |  |  |  |  |  |  |  |  |
Outstanding borrowings |  |  |  | $ 83,723 | $ 86,426 |  |  |  |
One Communications Debt |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Financing costs |  |  | $ 300 |  |  |  |  |  |
Outstanding debt |  |  |  | 24,300 |  |  |  |  |
Unamortized financing costs |  |  |  | 100 |  |  |  |  |
One Communications Debt | Minimum |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Percentage of notional amount required for hedging arrangement |  |  | 30.00% |  |  |  |  |  |
One Communications Debt | Minimum | One-month LIBOR |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 2.50% |  |  |  |  |  |
One Communications Debt | Maximum | One-month LIBOR |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 2.75% |  |  |  |  |  |
Viya Debt |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Term loan assumed |  |  |  |  |  |  |  |  | $ 60,000
Net leverage ratio |  |  |  |  |  |  |  |  | 3.5
Stated interest rate |  |  |  |  |  |  |  | 4.00% | 4.00%
Financing costs |  |  |  |  |  |  |  | $ 900 |
Intercompany debt limit |  |  |  |  |  | $ 75,000 |  |  |
Outstanding debt |  |  |  | 60,000 |  |  |  |  |
Unamortized financing costs |  |  |  | 500 |  |  |  |  |
Revolver loan | Credit facility |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 200,000 |  |  |  |  |  |  |
Remaining borrowing capacity |  |  |  | 184,000 |  |  |  |  |
Net leverage ratio |  | 1.75 |  |  |  |  |  |  |
Net leverage ratio, if qualifying event |  | 3.25 |  |  |  |  |  |  |
Revolver loan | Credit facility | Minimum |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Commitment fee (as a percent) |  | 0.15% |  |  |  |  |  |  |
Revolver loan | Credit facility | Minimum | LIBOR |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 1.25% |  |  |  |  |  |  |
Revolver loan | Credit facility | Minimum | Base rate |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 0.25% |  |  |  |  |  |  |
Revolver loan | Credit facility | Maximum |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Commitment fee (as a percent) |  | 0.375% |  |  |  |  |  |  |
Net leverage ratio |  | 2.75 |  |  |  |  |  |  |
Revolver loan | Credit facility | Maximum | LIBOR |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 2.25% |  |  |  |  |  |  |
Revolver loan | Credit facility | Maximum | Base rate |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 1.25% |  |  |  |  |  |  |
Letter of credit sub-facility | Credit facility |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 75,000 |  |  |  |  |  |  |
Performance letters of credit issued and outstanding |  |  |  | 16,000 |  |  |  |  |
Swingline sub-facility | Credit facility |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 10,000 |  |  |  |  |  |  |
Base rate before one-week or one-month LIBOR (as a percent) |  | 1.00% |  |  |  |  |  |  |
Swingline sub-facility | Credit facility | Federal Funds Effective Rate |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 0.50% |  |  |  |  |  |  |
Commnet Finance | Senior secured delayed draw term loan | Receivable credit facility |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 75,000 |  |  |  |  |  |  |  |
Outstanding borrowings |  |  |  | 0 |  |  |  |  |
Commnet Finance | Senior secured delayed draw term loan | Receivable credit facility | LIBOR |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 2.50% |  |  |  |  |  |  |  |
Commnet Finance | Senior secured delayed draw term loan | Receivable credit facility | Base rate |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 1.50% |  |  |  |  |  |  |  |
Cash flow hedge | Interest rate swap |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |
Notional amount |  |  |  | $ 7,600 |  |  | $ 11,000 |  |
Interest rate (as a percent) |  |  |  |  |  |  | 1.874% |  |

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