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LONG-TERM DEBT (Details) - USD ($) $ in Millions |  |  | 9 Months Ended |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 22, 2017 | May 03, 2016 | Sep. 30, 2017 | Jul. 31, 2017 | May 21, 2017 | Mar. 31, 2017 | Dec. 19, 2016 | Jul. 01, 2016 | Jan. 11, 2016 | Jan. 10, 2016 | Dec. 24, 2014 | Dec. 19, 2014
Interest rate swap | Cash flow hedge |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  | $ 11.0 |  |  |  |  |  |  |  |
Interest rate |  |  |  | 1.874% |  |  |  |  |  |  |  |
Revolver loan | Amended Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  | $ 400.0 | $ 275.0 |  | $ 225.0
Borrowings |  |  | $ 0.0 |  |  |  |  |  |  |  |  |
Revolver loan | Amended Credit Facility | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Commitment fee (as a percent) |  |  | 0.175% |  |  |  |  |  |  |  |  |
Revolver loan | Amended Credit Facility | Minimum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 1.50% |  |  |  |  |  |  |  |  |
Revolver loan | Amended Credit Facility | Minimum | Base rate |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 0.50% |  |  |  |  |  |  |  |  |
Revolver loan | Amended Credit Facility | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Commitment fee (as a percent) |  |  | 0.25% |  |  |  |  |  |  |  |  |
Revolver loan | Amended Credit Facility | Maximum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 1.75% |  |  |  |  |  |  |  |  |
Revolver loan | Amended Credit Facility | Maximum | Base rate |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 0.75% |  |  |  |  |  |  |  |  |
Swingline sub-facility | Amended Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | 10.0
Swingline sub-facility | Amended Credit Facility | Federal Funds Effective Rate |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 0.50% |  |  |  |  |  |  |  |  |
Swingline sub-facility | Amended Credit Facility | Minimum | Base rate |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 1.00% |  |  |  |  |  |  |  |  |
Letter of credit sub-facility | Amended Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | 10.0
Term loans | Amended Credit Facility |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  | $ 200.0 |  |  |
Ahana Debt |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Term loan assumed |  |  |  |  |  |  |  |  |  |  | $ 38.9 |
Ahana Debt | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  | 4.50% |
Ahana Debt | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  | 6.00% |
PSE&G |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  |  | 11.30% |
Outstanding debt |  |  | $ 2.3 |  |  |  |  |  |  |  |  |
Series A Notes And Series B Notes | Ahana Operations |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Financing costs |  |  | 2.8 |  |  |  |  |  |  |  |  |
Outstanding debt |  |  | 64.6 |  |  |  |  |  |  |  |  |
Unamortized financing costs |  |  | 2.7 |  |  |  |  |  |  |  |  |
Series A Notes | Ahana Operations |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  | $ 20.6 |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 4.427% |  |  |  |  |
Series B Notes | Ahana Operations |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  | $ 45.2 |  |  |  |  |
Stated interest rate |  |  |  |  |  |  | 5.327% |  |  |  |  |
One Communications Debt |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 37.5 |  |  |  |  |  |  |  |  |  |  |
Financing costs | $ 0.3 |  |  |  |  |  |  |  |  |  |  |
Outstanding debt |  |  | 36.6 |  |  |  |  |  |  |  |  |
Unamortized financing costs |  |  | 0.3 |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Period to enter into hedging arrangement | 90 days |  |  |  |  |  |  |  |  |  |  |
One Communications Debt | Maximum | Three month LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 2.75% |  |  |  |  |  |  |  |  |  |  |
One Communications Debt | Overdraft Facility |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 10.0 |  |  |  | $ 5.0 |  |  |  |  |  |  |
Borrowings |  |  | $ 0.0 |  |  |  |  |  |  |  |  |
One Communications Debt | Overdraft Facility | Three month LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 1.75% |  |  |  |  |  |  |  |  |
Viya Debt |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  | $ 60.0 |  |  |  |
Financing costs |  |  |  |  |  |  |  | $ 0.9 |  |  |  |
Stated interest rate |  |  |  |  |  |  |  | 4.00% |  |  |  |
Outstanding debt |  |  | $ 60.0 |  |  |  |  |  |  |  |  |
Unamortized financing costs |  |  | $ 0.8 |  |  |  |  |  |  |  |  |
One Communications (formerly KeyTech) | Term loans |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Term loan assumed |  | $ 35.4 |  |  |  |  |  |  |  |  |  |
Outstanding debt |  |  |  |  |  | $ 28.9 |  |  |  |  |  |
One Communications (formerly KeyTech) | Term loans | Three month LIBOR |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 3.25% |  |  |  |  |  |  |  |  |  |
Mobility Funds | Letter of credit sub-facility |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | $ 25.0

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Data Type: | na
Balance Type: |
Period Type: |