Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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BASIS OF PRESENTATION (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
BASIS OF PRESENTATION (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Selling, general and administrative	$ (88,674)	$ (78,883)	$ (267,036)	$ (231,897)
Other income, net	(227)	(1,583)	(7,021)	(5,943)
Accumulated other comprehensive income	52,445		52,445		$ 43,774
Retained earnings	$ 379,900		$ 379,900		347,304
ASU 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated other comprehensive income					6,300
Retained earnings					$ 6,300
ASU 2017-07
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Selling, general and administrative		2,400		7,200
Other income, net		$ 2,400		$ 4,800