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EARNINGS PER SHARE Accelerated Share Repurchase (Details) - USD ($) $ in Thousands	3 Months Ended				4 Months Ended	9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Mar. 07, 2019	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Accelerated Share Repurchases [Line Items]
Payments for Repurchase of Common Stock						$ (152,735)	$ (27,055)
Stock Repurchase Program, Authorized Amount								$ 400,000	$ 300,000
Treasury Stock, Shares, Acquired	695,496	2,394,816	365,272	351,821	365,272	3,455,584
Stock Repurchase Program Expiration Date						Dec. 31, 2020
2020 Repurchase Authorization [Member]
Accelerated Share Repurchases [Line Items]
Treasury Stock, Shares, Acquired						3,090,312
Treasury Stock, Common [Member]
Accelerated Share Repurchases [Line Items]
Payments for Repurchase of Common Stock						$ (150,000)

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The cash outflow to reacquire common stock during the period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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Amount of stock repurchase plan authorized.

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Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the CCYY-MM-DD format.

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Number of shares that have been repurchased during the period and are being held in treasury.

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-Topic 505
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