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COMMON STOCK REPURCHASES (Details) - USD ($) shares in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jul. 29, 2013
Class of Stock [Line Items]
Payments for repurchase of common stock	$ 0	$ 0	$ 9,530,000
Common stock
Class of Stock [Line Items]
Authorized amount				$ 100,000,000
Payments for repurchase of common stock			$ 9,500,000
Shares repurchased and retired (in shares)			1.3

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The cash outflow to reacquire common stock during the period.

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Number of shares that have been repurchased and retired during the period.

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