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STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2017

STOCK-BASED COMPENSATION

Schedule of weighted-average assumptions used to estimate the fair value of options granted

		Three-Months Ended March 31,
		2017		2016
Dividend yield		0.0%		0.0%
Expected volatility		36.6%		36.2%
Risk-free interest rate		2.1%		1.5%
Expected term		6.1 years		5.7 years

Summary of Company's activities with respect to its stock option plans

Options		Number of Shares (In thousands)		Weighted- Average Exercise Price Per Share			Weighted- Average Remaining Contractual Term (In years)		Aggregate Intrinsic Value
Outstanding at January 1, 2017		22,643		$	23.55		5.8		$	474,739
Granted 01/01/17 - 03/31/17		1,319		$	45.94
Exercised		(993)		$	13.72
Cancelled or forfeited		(107)		$	40.16
Outstanding at March 31, 2017		22,862		$	25.19		5.9		$	480,827
Vested and expected to vest in the future at March 31, 2017		21,438		$	24.04		5.7		$	475,332
Exercisable at March 31, 2017		13,205		$	14.13		3.9		$	423,110

Summary of Company's activities with respect to non-vested restricted stock units

		Number of Shares (in thousands)		Weighted Average Grant-Date Fair Value
Non-vested at January 1, 2017		556		$	39.95
Granted 01/01/17- 03/31/17		252		$	46.27
Vested		(212)		$	39.77
Forfeited/cancelled		(2)		$	20.69
Non-vested at March 31, 2017		594		$	42.76

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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