v2.4.1.9

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity

A summary of stock option activity under the Incentive Plan as of December 31, 2014 and 2013 and changes during the periods then ended are as follows: 

		Number of Shares			Weighted-Average Price/Share				Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
									(in years)
Outstanding at December 31, 2012		2,820,619			$	9.11			8.62		$	8,687
Granted		1,923,206			19.46
Exercised		(588,769	)		8.69
Cancelled		(844,292	)		(11.16		)
Outstanding at December 31, 2013		3,310,764			$	14.67			8.63		$	9,717
Granted		3,239,740			10.89
Exercised		(60,632	)		8.26
Cancelled		(1,050,975	)		(11.54		)
Outstanding at December 31, 2014		5,438,897			$	13.09			8.59		$	21

Schedule of Share-based Compensation, Activity

		Number of Shares			Weighted-Average Price/Share				Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
									(in years)
Vested and Exercisable at December 31, 2013		894,813			$	9.38			7.61		$	5,358
Unvested at December 31, 2013		2,415,951			16.63				7.91
Vested and Exercisable at December 31, 2014		1,248,711			$	12.97			7.23		$	—
Unvested at December 31, 2014		4,190,186			13.13				9.04

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of awards granted is estimated at the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:  

Year of Grant		Risk-Free Interest Rate		Dividend Yield		Expected Term		Volatility Factor
						(in years)
2012		0.71%		0%		4.40		60.0%
2013		1.02%		0%		4.90		57.0%
2014		1.67%		0%		5.00		53.0%

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- Definition

Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value.

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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)

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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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