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LONG-TERM DEBT (Details) $ in Millions |  |  | 3 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 10, 2019 USD ($) | May 22, 2017 USD ($) | Mar. 31, 2019 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2018 USD ($) | Jul. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 19, 2016 USD ($) | Jul. 01, 2016 USD ($) | Dec. 24, 2014
PSE&G |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  | 11.30%
One Communications Debt |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Financing costs |  | $ 0.3 |  |  |  |  |  |  |  |
Outstanding debt |  |  |  | $ 30.0 |  |  |  |  |  |
Borrowings outstanding |  |  |  | 0.0 |  |  |  |  |  |
Unamortized financing costs |  |  |  | 0.2 |  |  |  |  |  |
One Communications Debt | Minimum |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Percentage of notional amount required for hedging arrangement |  | 30.00% |  |  |  |  |  |  |  |
One Communications Debt | Minimum | Three month LIBOR |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 2.50% |  |  |  |  |  |  |  |
One Communications Debt | Maximum | Three month LIBOR |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 2.75% |  |  |  |  |  |  |  |
Viya Debt |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Term loan assumed |  |  |  |  |  |  |  |  | $ 60.0 |
Net leverage ratio |  |  |  |  |  |  |  |  | 3.5 |
Stated interest rate |  |  |  |  |  |  | 4.00% |  | 4.00% |
Financing costs |  |  |  |  |  |  | $ 0.9 |  |  |
Intercompany debt limit |  |  |  |  | $ 75.0 |  |  |  |  |
Outstanding debt |  |  |  | 60.0 |  |  |  |  |  |
Unamortized financing costs |  |  |  | 0.6 |  |  |  |  |  |
Revolver loan | Credit facility |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 200.0 |  | $ 225.0 |  |  |  |  |  |  |
Maximum investment in unrestricted subsidiaries |  |  | $ 400.0 |  |  |  |  |  |  |
Remaining borrowing capacity |  |  |  | 192.0 |  |  |  |  |  |
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% |  | 0.175% |  |  |  |  |  |  |
Revolver loan | Credit facility | Minimum | LIBOR |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 1.25% |  | 1.50% |  |  |  |  |  |  |
Revolver loan | Credit facility | Minimum | Base rate |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 0.25% |  | 0.50% |  |  |  |  |  |  |
Revolver loan | Credit facility | Maximum |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Commitment fee (as a percent) | 0.375% |  | 0.25% |  |  |  |  |  |  |
Net leverage ratio | 2.75 |  |  |  |  |  |  |  |  |
Revolver loan | Credit facility | Maximum | LIBOR |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 2.25% |  | 1.75% |  |  |  |  |  |  |
Revolver loan | Credit facility | Maximum | Base rate |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 1.25% |  | 0.75% |  |  |  |  |  |  |
Letter of credit sub-facility | Credit facility |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 75.0 |  | $ 10.0 |  |  |  |  |  |  |
Performance letters of credit issued and outstanding |  |  |  | 8.0 |  |  |  |  |  |
Swingline sub-facility | Credit facility |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 10.0 |  | $ 10.0 |  |  |  |  |  |  |
Base rate before one-week or one-month LIBOR (as a percent) | 1.00% |  | 1.00% |  |  |  |  |  |  |
Swingline sub-facility | Credit facility | Federal Funds Effective Rate |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 0.50% |  | 0.50% |  |  |  |  |  |  |
Term loans | Credit facility |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 200.0 |  | $ 200.0 |  |  |  |  |  |  |
Mobility Funds | Letter of credit sub-facility | Credit facility |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | $ 25.0 |  |  |  |  |  |  |
Ahana Operations | Series A Notes |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Secured debt principal amount |  |  |  |  |  |  |  | $ 20.6 |  |
Stated interest rate |  |  |  |  |  |  |  | 4.427% |  |
Ahana Operations | Series B Notes |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Secured debt principal amount |  |  |  |  |  |  |  | $ 45.2 |  |
Stated interest rate |  |  |  |  |  |  |  | 5.327% |  |
Ahana Operations | Series A and Series B Notes |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Financing costs |  |  |  |  |  |  |  | $ 2.8 |  |
Cash flow hedge | Interest rate swap |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  | $ 8.7 |  | $ 11.0 |  |  |  |
Interest rate (as a percent) |  |  |  |  |  | 1.874% |  |  |  |

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