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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Stock-Based Compensation

Information on stock options issued under the plans

							Weighted-
							Average
							Remaining		Aggregate
		Number of Option		Weighted-Average			Contractual		Intrinsic Value
		Shares		Exercise Price			Term (in years)		(in thousands)
Outstanding at December 31, 2015		6,381,576		$	9.97
Granted		1,573,651			12.92
Exercised		(1,526,226)			7.77
Canceled		(102,408)			13.76
Outstanding at December 31, 2016		6,326,593		$	11.17		3.93		$	16,988,875

Information about stock options outstanding, by exercise price range

		Exercise Price Range									Total
		$6.76 to			$11.12 to			$16.59 to			$6.76 to
		$10.26			$15.45			$18.61			$18.61
Outstanding options
Number outstanding			2,229,210			4,026,349			71,034			6,326,593
Weighted-average remaining contractual life (years)			1.55			5.22			5.73			3.93
Weighted-average exercise price		$	8.10		$	12.76		$	17.26		$	11.17
Exercisable options
Number outstanding			1,805,807			1,288,869			15,374			3,110,050
Weighted-average exercise price		$	9.53		$	13.06		$	17.86		$	11.03

Information on restricted stock awards issued under the plans

		Number of Award
		Shares
Outstanding at December 31, 2015		126,996
Awarded		113,766
Released		(50,860)
Canceled		(14,016)
Outstanding at December 31, 2016		175,886

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Tabular disclosure of the changes in outstanding nonvested shares.

+ 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)(2)
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- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

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

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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)
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