SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Items Measured at Fair Value on Recurring Basis) (Details) - Fair Value, Measurements, Recurring $ in Millions |
Sep. 30, 2016
USD ($)
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||
| Deferred Compensation Plan Assets | $ 28.1 | [1] | ||||
| Deferred Compensation Plan Liability | (28.1) | [1] | ||||
| Total | 0.0 | |||||
| Quoted Prices in Active Markets for Identical Assets (Level 1) | ||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||
| Deferred Compensation Plan Assets | 28.1 | [1] | ||||
| Deferred Compensation Plan Liability | 0.0 | [2] | ||||
| Total | 28.1 | |||||
| Significant Other Observable Inputs (Level 2) | ||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||
| Deferred Compensation Plan Assets | 0.0 | [2] | ||||
| Deferred Compensation Plan Liability | (28.1) | [1] | ||||
| Total | (28.1) | |||||
| Significant Unobservable Inputs (Level 3) | ||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||
| Deferred Compensation Plan Assets | 0.0 | [2] | ||||
| Deferred Compensation Plan Liability | 0.0 | [2] | ||||
| Total | $ 0.0 | |||||
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