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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2018 USD ($) segment Country | Jan. 01, 2018 USD ($) | Dec. 31, 2017 USD ($)
Accounting Policies [Abstract] |  |  |
Number of countries in which entity operates | Country | 30 |  |
Number of reportable segments | segment | 3 |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Retained earnings | $ 1,738,545 |  | $ 1,597,897
Other noncurrent assets | 323,019 |  | 207,297
Deferred income tax liabilities | 452,470 |  | $ 436,879
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |
Retained earnings | (58,734) | $ 51,000 |
Other noncurrent assets | (73,247) | 64,600 |
Deferred income tax liabilities | $ (15,735) | $ 15,600 |

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