DERIVATIVES AND FAIR VALUE MEASUREMENTS Narrative (Details) - USD ($) |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Apr. 15, 2018 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Cash received from termination of interest rate swaps | $ 8,000,000.0 | |||
| Interest rate swaps | Cash Flow Hedges | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Interest rate swaps interest rate received | receive a rate based on the three-month USD LIBOR | |||
| Notional amount of forward-starting interest rate swaps that terminate in September 2020 | $ 250,000,000.0 | $ 250,000,000 | ||
| Notional amount of forward-starting interest rate swaps terminated | $ 350,000,000.0 | |||
| 7.65% senior notes | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Stated interest rate | 7.65% |