v2.4.0.8

Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

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

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions And Allocation of Recognized Period Costs [Table Text Block]

:

	Fiscal Year
	2013			2012			2011
Expected term in years	4.6			4.6			4.1 – 4.6
Volatility (%)	45 – 48			46 – 52			40 – 57
Risk-free interest rate (%)	1.2			0.7 – 0.9			0.6 – 2.0
Dividend rate (%)	—			—			—

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Additional information related to our stock options is summarized below ($ amounts in 000's, except per share amounts):

	Fiscal Year
	2013			2012			2011
Weighted-average fair value per share granted	8.42			11.13			8.10
Intrinsic value of options exercised	41,484			92,323			113,590
Fair value of options vested	26,411			25,350			11,800

The following table summarizes the stock option activity and related information for the periods presented below (in 000’s, except per share amounts, exercise prices and contractual life):

	Options Outstanding
	Number of Shares			Weighted- Average Exercise Price ($)			Weighted- Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value ($)
Balance—December 31, 2010	22,489			4.21
Granted	6,526			21.05
Forfeited	(1,397	)		11.79
Exercised	(6,229	)		3.21
Balance—December 31, 2011	21,389			9.14
Granted	3,401			26.38
Forfeited	(1,441	)		19.31
Exercised	(4,778	)		5.69
Balance—December 31, 2012	18,571			12.40
Granted	258			20.89
Forfeited	(820	)		22.14
Exercised	(2,488	)		5.18
Balance—December 31, 2013	15,521			13.18
Options vested and expected to vest—December 31, 2013	15,496			13.17			3.24		120,178
Options exercisable—December 31, 2013	12,084			10.52			2.82		118,226

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following table summarizes information about outstanding and exercisable stock options as of December 31, 2013, as follows (in 000’s, except per share amounts, exercise prices and contractual life):

		Options Outstanding								Options Exercisable
Range of Exercise Prices ($)		Number Outstanding			Weighted- Average Remaining Contractual Life (Years)		Weighted- Average Exercise Price ($)			Number Exercisable			Weighted- Average Exercise Price ($)
0.48–1.20		1,331			1.75		0.97			1,331			0.97
3.74–4.65		4,902			1.66		3.75			4,902			3.75
5.50–6.25		152			2.71		5.64			152			5.64
8.43–8.99		1,636			3.16		8.55			1,486			8.53
15.28–19.94		382			4.15		15.88			231			15.28
20.13–24.92		4,835			4.41		21.32			2,902			21.20
26.70–26.70		2,283			5.01		26.70			1,080			26.70
		15,521								12,084

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

The following table summarizes the activity and related information for RSUs for the periods presented below (in 000’s, except per share amounts):

	Restricted Stock Units Outstanding
	Number of Shares			Weighted-Average Grant-Date-Fair Value per Share ($)
Balance—December 31, 2011	—			—
Granted	873			23.79
Forfeited	(43	)		24.76
Vested	—			—
Balance—December 31, 2012	830			23.73
Granted	4,104			21.75
Forfeited	(507	)		21.48
Vested	(228	)		23.89
Balance—December 31, 2013	4,199			22.00
RSUs expected to vest—December 31, 2013	3,898			22.02

Schedule of Share-based Compensation, Shares Withheld for Taxes [Table Text Block]

The following summarizes the number and value of the shares withheld for employee taxes for fiscal 2013 (in 000’s):

Shares withheld for taxes	70
Amount withheld for taxes ($)	1,452

Schedule of Share-based Payment Award, Equity Instruments Other than Options, Valuation Assumptions [Table Text Block]

The following table summarizes the weighted-average assumptions relating to our PSUs for fiscal 2013:

Expected term in years	2.97
Volatility (%)	50.11
Risk-free interest rate (%)	0.67
Dividend rate (%)	—

Schedule of Shares Reserved for Future Issuance [Table Text Block]

The following table presents the common stock reserved for future issuance (in 000’s):

	December 31, 2013
Outstanding stock options and RSUs	19,720
Reserved for future stock option, RSU and other equity award grants	27,412
Reserved for future ESPP issuances	6,751
Total common stock reserved for future issuances	53,883

Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

In determining the fair value of our ESPP, we use the Black-Scholes option pricing model that employs the following weighted-average assumptions:

	Fiscal Year
	2013			2012			2011
Expected term in years	0.5			0.5			0.5
Volatility (%)	44.0			53.7			59.9
Risk-free interest rate (%)	0.12			0.12			0.07
Dividend rate (%)	—			—			—

Additional information related to the ESPP is provided below (in 000's, except per share amounts):

	Fiscal Year
	2013			2012			2011
Weighted-average fair value per share granted ($)	6.11			7.06			6.56
Shares issued under the ESPP	672			577			—
Weighted-average price per share issued ($)	18.88			18.90			—

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

Stock-based compensation expense is included in costs and expenses as follows ($ amounts in 000’s):

	Fiscal Year
	2013			2012			2011
Cost of product revenue	383			333			183
Cost of services revenue	4,841			3,736			1,790
Research and development	13,271			9,226			4,691
Sales and marketing	19,526			12,793			9,325
General and administrative	6,450			4,602			3,026
Total stock-based compensation expense	44,471			30,690			19,015

The following table summarizes stock-based compensation expense by award type ($ amounts in 000’s)

	Fiscal Year
	2013			2012			2011
Stock options	20,806			24,506			17,416
RSUs	18,968			1,714			—
ESPP	4,697			4,470			1,599
Total stock-based compensation expense	44,471			30,690			19,015

Income Tax Benefit from Stock Option Plans [Table Text Block]

Total income tax benefit associated with stock-based compensation that is recognized in the consolidated statements of operations is as follows ($ amounts in 000’s):

	Fiscal Year
	2013			2012			2011
Income tax benefit associated with stock-based compensation	8,331			5,870			3,822

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Income Tax Benefit from Stock Option Plans [Table Text Block]

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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. Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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

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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.

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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.

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