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BASIS OF PRESENTATION (Recent Accounting Pronouncements) (Narrative) (Details) - USD ($) $ in Thousands | Oct. 01, 2017 | Sep. 30, 2017
--- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Cumulative effect of accounting changes |  | $ 5,420
Retained earnings |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Cumulative effect of accounting changes |  | $ 4,006
Pro Forma [Member] | Accounting Standards Update 2016-09, Excess Tax Benefit Component [Member] | Retained earnings |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Cumulative effect of accounting changes | $ 5,400 |

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