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Share Repurchase Program and Treasury Stock	6 Months Ended
	Jun. 30, 2017
Equity [Abstract]
SHARE REPURCHASE PROGRAM AND TREASURY STOCK	SHARE REPURCHASE PROGRAM AND TREASURY STOCK The Company has a share repurchase program of which there was $733.5 million common shares remaining to be repurchased under the program as of June 30, 2017. The share repurchases are expected to be funded from cash balances, borrowings and cash generated from operating activities. Repurchases will be made through open market transactions, and the amount and timing of purchases will depend on business and market conditions, the stock price, trading restrictions, the level of acquisition activity and other factors. The Company has purchased 26.5 million shares since the inception of the program in 2004 through June 30, 2017. During the six months ended June 30, 2017 and 2016, the Company spent $249.9 million and $250.0 million on the repurchase of 505,593 shares and 732,245 shares at an average price per share of $494.35 and $341.39, respectively. The Company also reissued 153,413 shares and 131,737 shares held in treasury for the exercise of stock options and restricted stock units during the six months ended June 30, 2017 and 2016, respectively.

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- Definition

The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-URI http://asc.fasb.org/subtopic&trid=2208821

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