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SHAREHOLDERS' EQUITY	6 Months Ended
	Jun. 30, 2018
Stockholders' Equity Note [Abstract]
SHAREHOLDERS’ EQUITY	SHAREHOLDERS’ EQUITY We make repurchases of our common stock mainly through the use of open market purchases and, at times, through accelerated share repurchase programs. As of June 30, 2018, we were authorized to repurchase up to $419.1 million of our common stock. During the three and six months ended June 30, 2018, through open market repurchase plans, we repurchased and retired 1,603,248 and 1,612,174 shares of our common stock, respectively, at a cost of $179.9 million and $180.9 million, respectively, or an average cost of $112.20 and $112.19 per share, respectively, including commissions. During the three and six months ended June 30, 2017, through open market repurchase plans, we repurchased and retired 64,716 shares of our common stock at a cost of $5.8 million, or an average cost of $89.70 per share, including commissions. On July 27, 2018, our board of directors declared a dividend of $0.01 per share payable on September 28, 2018 to common shareholders of record as of September 14, 2018.

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- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

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