Ruckus Wireless (RKUS) 10-Q 1 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Mar. 31, 2014	Apr. 28, 2014
Entity [Abstract]	'	'
Entity Registrant Name	'RUCKUS WIRELESS INC	'
Entity Central Index Key	'0001294016	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	82,051,269

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$79,767	$91,282
Short-term investments	76,622	60,878
Accounts receivable, net of allowance for doubtful accounts of $800 and $400 as of March 31, 2014 and December 31, 2013, respectively	49,803	44,638
Inventories	17,412	16,748
Deferred costs	3,553	4,207
Deferred tax assets	7,734	7,715
Prepaid expenses and other current assets	5,307	5,227
Total current assets	240,198	230,695
Property and equipment, net	11,534	11,472
Goodwill	9,945	9,945
Intangible assets, net	9,341	9,671
Non-current deferred tax asset	15,833	15,317
Restricted cash	5,000	5,000
Other assets	1,063	1,122
Total assets	292,914	283,222
Current liabilities:	'	'
Accounts payable	17,473	19,131
Accrued compensation	13,510	11,759
Accrued liabilities	7,811	6,231
Deferred revenue	30,264	33,139
Total current liabilities	69,058	70,260
Non-current deferred revenue	8,142	7,098
Non-current deferred tax liabilities	854	854
Other non-current liabilities	1,205	1,161
Total liabilities	79,259	79,373
Commitments and contingencies (Note 7)	'	'
Stockholders’ equity:	'	'
Common stock, $0.001 par value; 250,000 shares authorized as of March 31, 2014 and December 31, 2013; 81,937 and 80,691 shares issued and outstanding at March 31, 2014 and December 31, 2013, respectively	82	81
Additional paid–in capital	235,113	225,575
Accumulated other comprehensive loss	-8	-2
Accumulated deficit	-21,532	-21,805
Total stockholders’ equity	213,655	203,849
Total liabilities and stockholders’ equity	$292,914	$283,222

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Allowance for doubtful accounts	$800	$400
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	250,000,000	250,000,000
Common Stock, Shares, Issued	81,937,000	80,691,000
Common stock, shares outstanding	81,937,000	80,691,000

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Revenue:	'	'
Product	$70,075	$53,311
Service	4,977	3,930
Total revenue	75,052	57,241
Cost of revenue:	'	'
Product	21,496	16,571
Service	2,759	2,287
Total cost of revenue	24,255	18,858
Gross profit	50,797	38,383
Operating expenses:	'	'
Research and development	18,139	13,778
Sales and marketing	23,270	16,851
General and administrative	8,437	7,932
Total operating expenses	49,846	38,561
Operating income (loss)	951	-178
Interest income	46	34
Other expense, net	-26	-77
Income (loss) before income taxes	971	-221
Income tax expense (benefit)	698	-535
Net income	$273	$314
Net income per share attributable to common stockholders:	'	'
Basic (USD per share)	$0	$0
Diluted (USD per share)	$0	$0
Weighted average number of shares outstanding, basic (in shares)	81,277	74,201
Weighted average number of shares outstanding, diluted (in shares)	93,311	94,325

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Net income	$273	$314
Other comprehensive loss, net of tax:	'	'
Unrealized loss on short-term investments	-6	0
Comprehensive income	$267	$314

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities	'	'
Net income	$273	$314
Adjustments to reconcile net income to cash provided by operating activities:	'	'
Depreciation and amortization	1,916	1,387
Provision for doubtful accounts	400	532
Stock-based compensation	6,346	4,030
Amortization of investment premiums, net of accretion of purchase discounts	321	0
Deferred income taxes	420	-443
Excess income tax benefit from the exercise of stock options	-952	0
Changes in operating assets and liabilities	'	'
Accounts receivable	-5,565	-1,583
Inventories	-664	142
Deferred costs	654	385
Prepaid expenses and other current assets	-70	-466
Other assets	59	30
Accounts payable	-1,121	-2,714
Accrued compensation	1,751	-1,835
Accrued liabilities	1,624	551
Deferred revenue	-1,831	-3,128
Net cash provided by (used in) operating activities	3,561	-2,798
Cash flows from investing activities	'	'
Purchase of investments	-42,687	0
Proceeds from the maturity of investments	26,603	0
Purchase of property and equipment	-2,185	-1,696
Increase in facility lease deposits	0	-31
Net cash used in investing activities	-18,269	-1,727
Cash flows from financing activities:	'	'
Initial public offering costs	0	-839
Proceeds from exercise of stock options	2,241	76
Excess income tax benefit from the exercise of stock options	952	0
Net cash provided by (used in) financing activities	3,193	-763
Net increase (decrease) in cash and cash equivalents	-11,515	-5,288
Cash and cash equivalents at beginning of period	91,282	133,386
Cash and cash equivalents at end of period	79,767	128,098
Supplemental disclosure of cash flow information	'	'
Income taxes paid	90	239
Non-cash investing and financing activities	'	'
Purchases of property and equipment recorded in accounts payable and accrued liabilities	$574	$769

DESCRIPTION_OF_BUSINESS_AND_SU

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Description of Business—Ruckus Wireless, Inc. (“Ruckus”) is a leading provider of carrier-class Wi-Fi solutions. Ruckus’s solutions, which it calls Smart Wi-Fi, are used by service providers and enterprises to solve network capacity and coverage challenges associated with the rapidly increasing traffic and number of users and client devices on wireless networks. Ruckus’s Smart Wi-Fi solutions offer carrier-class features and functionality such as enhanced reliability, consistent performance, extended range and massive scalability. Ruckus’s products include gateways, wireless local area network (“WLAN”) controllers and high performance access points. These products incorporate the Company’s patented and proprietary technologies, such as Smart Radio, Smart QoS, Smart Mesh and Smart Scale, to enable high performance, reliable, adaptive and high capacity connectivity in a wide range of challenging operating conditions faced by service providers and enterprises.
	Basis of Presentation— The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in Ruckus’s Annual Report on Form 10-K for the year ended December 31, 2013, filed on March 3, 2014.
	The condensed consolidated balance sheet as of December 31, 2013, included herein, was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP.
	In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year 2014 or any future period.
	Principles of Consolidation— The condensed financial statements include the accounts of Ruckus and its wholly owned subsidiaries (collectively, the “Company”). All intercompany balances and transactions have been eliminated in consolidation.
	Use of Estimates— The preparation of financial statements in conformity with generally accepted accounting principles (“GAAP”) in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Significant estimates and assumptions made by management include the determination of revenue recognition, allowance for doubtful accounts, goodwill and intangible valuation, the fair value of stock awards, inventory valuation, estimates of warranty liability and accounting for income taxes. Management bases its estimates on historical experience and also on assumptions that it believes are reasonable. Actual results could materially differ from those estimates.
	Summary of Significant Accounting Policies— There have been no material changes to our significant accounting policies as compared to those described in our Annual Report on Form 10-K for the year ended December 31, 2013.
	Recent Accounting Pronouncements—In June 2013, the FASB issued Accounting Standards Update 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. The standard gives guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists, with the purpose of reducing diversity in practice. This new standard requires the netting of unrecognized tax benefits against a deferred tax asset for a loss or other carryforward that would apply in settlement of the uncertain tax positions. The guidance became effective for the Company in the first quarter of 2014. The adoption of this guidance did not have a material impact on the consolidated financial position, results of operations, or cash flows of the Company.
	Concentrations of Credit Risk and Significant Customers— Financial instruments that subject the Company to significant concentrations of credit risk primarily consist of cash, cash equivalents, investments and accounts receivable. The Company invests only in high credit quality instruments and maintains its cash, cash equivalents and available-for-sale investments in fixed income securities. Management believes that the financial institutions that hold the Company’s investments are financially sound and, accordingly, are subject to minimal credit risk. Deposits held with banks may exceed the amount of insurance provided on such deposits. The Company’s accounts receivable are primarily derived from distributors and service providers located in the Americas, Europe, and Asia Pacific. The Company generally does not require its customers to provide collateral to support accounts receivable. To reduce credit risk, management performs ongoing credit evaluations of its customers’ financial condition. The Company has recorded an allowance for doubtful accounts for those receivables management has determined to not be collectible.
	The percentages of revenues from individual customers totaling greater than 10% of total consolidated Company revenues were as follows:
		Three Months Ended March 31,
		2014		2013
	Distributor A	14.8	%	13.5	%
	Distributor B	12.9	%	11	%
	Distributor C	11.9	%	*
	*    Less than 10%
	The percentage of receivables from individual customers totaling greater than 10% of total consolidated Company accounts receivable were as follows:
		March 31,		December 31,
		2014		2013
	Distributor C	17	%	10.4	%
	Distributor A	14.3	%	11.6	%
	Distributor D	*		11.2	%
	*    Less than 10%

FAIR_VALUE_DISCLOSURE

FAIR VALUE DISCLOSURE	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
FAIR VALUE DISCLOSURE	'
	FAIR VALUE DISCLOSURE
	Assets and liabilities recorded at fair value in the condensed consolidated financial statements are categorized based upon the level of judgment associated with the inputs used to measure their fair value. The Company categorizes its financial instruments into a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements).
	A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. There were no transfers between levels during the three months ended March 31, 2014. Hierarchical levels that are directly related to the amount of subjectivity associated with the inputs to the valuation of these assets or liabilities are as follows:
	Level 1		Quoted prices (unadjusted) in active markets that are accessible at the measurement date for identical assets or liabilities.
	Level 2		Observable prices that are based on inputs not quoted on active markets, but corroborated by market data.
	Level 3		Unobservable inputs are used when little or no market data is available.
	The Company’s assets that were measured at fair value by level within the fair value hierarchy were as follows (in thousands):
		31-Mar-14
		Fair Value		Level 1		Level 2		Level 3
	Assets
	Cash equivalents:
	Money market funds	$	29,051	$	29,051	$	—	$	—
	Corporate bonds	3,005		—		3,005		—
	Short-term investments:
	Corporate bonds	54,748		—		54,748		—
	Commercial paper	21,874		—		21,874		—
	Total assets measured and recorded at fair value	$	108,678	$	29,051	$	79,627	$	—
		31-Dec-13
		Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	47,773	$	47,773	$	—	$	—
	Short-term investments:
	Corporate bonds	47,290		—		47,290		—
	Commercial paper	13,588		—		13,588		—
	Total assets measured and recorded at fair value	$	108,651	$	47,773	$	60,878	$	—

INVESTMENTS

INVESTMENTS	3 Months Ended
	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]	'
INVESTMENTS	'
	INVESTMENTS
	Investments consisted of the following (in thousands):
		March 31, 2014
		Amortized Cost		Unrealized Gains			Unrealized Losses			Fair Value
	Corporate bonds	$	54,760	$	9		$	(21	)	$	54,748
	Commercial paper	21,874		—			—			21,874
	Total	$	76,634	$	9		$	(21	)	$	76,622
	All of the Company's investments have a contractual maturity of less than 12 months from March 31, 2014. The gross realized gains and gross realized losses related to the Company’s available-for-sale investments were not material for the three months ended March 31, 2014.
	Investments in an unrealized loss position at March 31, 2014 consisted of the following (in thousands):
		Less Than 12 Months
		Fair Value		Unrealized Loss
	Corporate bonds	$	28,745	$	(21	)
	The Company does not intend to sell any of these investments, and it is not more likely than not, that the Company would be required to sell these investments before recovery of their amortized cost basis, which may be at maturity.

BUSINESS_COMBINATIONS

BUSINESS COMBINATIONS	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
BUSINESS COMBINATIONS	'
	BUSINESS COMBINATIONS
	On July 18, 2013, the Company acquired all of the outstanding equity interests of YFind Technologies Private Limited (“YFind”), a privately-held software company providing indoor positioning and real-time location-based analytics. The Company acquired YFind to obtain its technology and expertise in location-based services. The purchase consideration was $6.1 million, all of which was paid in cash.
	Former YFind employees who became the employees of the Company were granted 219,782 restricted stock units (“RSUs”) and 51,900 stock options under the Company's Amended & Restated 2012 Equity Incentive Plan (the “2012 Plan”). The equity awards vest between three and four years from when the employee was hired. The fair value of the equity awards of $3.6 million will be recognized as post-acquisition compensation expense over the requisite service period. The Company is also obligated to pay retention bonuses of up to $0.4 million to certain former YFind employees who became employees of the Company, over two years from the date of hire. Both the equity awards and the retention bonuses are subject to certain continued employment restrictions. For the quarter ended March 31, 2014, the Company recorded compensation costs of $0.3 million in research and development expenses associated with the equity awards and the retention bonuses.
	The purchase allocation for YFind is summarized as follows (in thousands):
		Fair Value
	Cash and cash equivalents	$	257
	Other tangible assets	8
	In-process research and development	6,000
	Goodwill	914
	Non-current deferred tax liabilities	(1,020		)
	Other liabilities assumed	(21		)
	Total purchase consideration	$	6,138
	Pro forma results of operations for the YFind acquisition have not been presented because they are not material to the condensed consolidated statements of operations.

GOODWILL_AND_INTANGIBLES_ASSET

GOODWILL AND INTANGIBLES ASSETS	3 Months Ended
	Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
GOODWILL AND INTANGIBLE ASSETS	'
	GOODWILL AND INTANGIBLE ASSETS
	Intangible assets consisted of the following (in thousands, except years):
		Gross Carrying		Accumulated			Net		Weighted
		Amount		Amortization			Carrying		Average
							Amount		Remaining
									Life
	March 31, 2014:
	Purchased technology	$	6,600	$	(3,259	)	$	3,341	2.5 years
	In-process research and development	6,000		—			6,000
	Total	$	12,600	$	(3,259	)	$	9,341
	December 31, 2013:
	Purchased technology	$	6,600	$	(2,929	)	$	3,671	2.8 years
	In-process research and development	6,000		—			6,000
	Total	$	12,600	$	(2,929	)	$	9,671
	On July 18, 2013, the Company recorded the fair value of the in-process research and development of $6.0 million related to the acquisition of YFind. In-process research and development is accounted for as an indefinite-lived intangible asset until completion or abandonment of the associated research and development efforts. The in-process research and development is expected to be put in service in the second quarter of 2014 and will be amortized over its estimated useful life of four years.
	Estimated future amortization of intangible assets at March 31, 2014, excluding in-process research and development of $6.0 million, is as follows (in thousands):
	Year ending December 31,	Amount
	2014 (remaining nine months)	$	990
	2015	1,320
	2016	1,031
	Total amortization	$	3,341
	The Company had goodwill of $9.9 million as of March 31, 2014 and December 31, 2013. No impairment has been recognized related to the goodwill balances.

DEFERRED_REVENUE

DEFERRED REVENUE	3 Months Ended
	Mar. 31, 2014
Deferred Revenue Disclosure [Abstract]	'
DEFERRED REVENUE	'
	DEFERRED REVENUE
	Deferred revenue consisted of the following (in thousands):
		March 31,		December 31,
		2014		2013
	Product	$	18,472	$	21,732
	Service	19,934		18,505
	Total deferred revenue	$	38,406	$	40,237
	Reported as:
	Current	$	30,264	$	33,139
	Non-current	8,142		7,098
	Total deferred revenue	$	38,406	$	40,237
	Deferred product revenue relates to arrangements where not all revenue recognition criteria have been met. Deferred services revenue represents support contracts billed in advance and revenue is recognized ratably over the support period, typically one to five years.

COMMITMENTS_AND_CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
COMMITMENTS AND CONTINGENCIES	'
	COMMITMENTS AND CONTINGENCIES
	Operating Leases—The Company’s primary facilities are located in Sunnyvale, California, Shenzhen, China, Beijing, China and Taipei, Taiwan, and are leased under non-cancelable operating lease arrangements.
	Future minimum lease payments under non-cancelable operating leases were as follows (in thousands):
	Years ending December 31,	Amount
	2014 (remaining nine months)	$	2,885
	2015	3,289
	2016	2,591
	2017	2,358
	2018	2,353
	Thereafter	9,913
	Operating lease obligations	$	23,389
	Litigation—The Company is involved in legal proceedings, claims, and litigation arising in the ordinary course of business. Management is not currently aware of any matters that it expects will have a material adverse effect on the consolidated financial position, results of operations, or cash flows of the Company.
	For the three months ended March 31, 2014, the Company settled several patent litigation claims for a net gain of $0.8 million, which is included in general and administrative expense in the condensed consolidated statements of operations.
	Purchase Commitments—As of March 31, 2014, the Company had current purchase commitments of $11.4 million for inventory and specific contractual services.
	Indemnification Agreements—The Company indemnifies its directors for certain events or occurrences, subject to certain limits, while the director is or was serving at the Company’s request in such capacity. The term of the indemnification period is for the director’s term of service. The Company may terminate the indemnification agreements with its directors upon the termination of their services as directors of the Company, but termination will not affect claims for indemnification related to events occurring prior to the effective date of termination. The maximum amount of potential future indemnification is unlimited; however, the Company has a director insurance liability policy that limits its exposure. The Company believes the fair value of these indemnification agreements is minimal. The Company has also entered into customary indemnification agreements with each of its officers.
	The Company indemnifies its channel partners against certain claims alleging that the Company’s products (excluding custom products and/or custom support) infringe a patent, copyright, trade secret, or trademark, provided that a channel partner promptly notifies the Company in writing of the claim and such channel partner cooperates with the Company and grants the Company the authority to control the defense and any related settlement.
	The Company has not recorded any liabilities for these agreements as of March 31, 2014 and December 31, 2013.
	Reimbursement of Penalties—As of March 31, 2014, the Company held $5.0 million in escrow to secure an indemnification agreement. If triggered, the Company will indemnify a channel partner for reimbursement of penalties assessed under the Information Technology Act of India (“IT Act”). The IT Act specifies penalties for network service providers in the event of illegal or unauthorized use of computers, computer systems and data stored therein. In the event that Ruckus equipment is the cause of a network service provider breach, the Company is required to indemnify the channel partner, without limitation to the amount, for penalties reimbursed by the channel partner to the network service provider under the IT Act. The indemnification period is six years beginning from April 2013. To date no claims have been made under the IT Act, for which the Company would be potentially liable.
	Warranties—The Company offers a limited lifetime hardware warranty on its indoor WLAN products and a limited warranty for all other hardware products for a period of up to one year. The Company estimates the costs that may be incurred under its warranties and records a liability for products sold as a charge to cost of revenue. Estimates of future warranty costs are largely based on historical experience of product failure rates and material usage incurred in correcting product failures. The Company periodically assesses the adequacy of its recorded warranty liability and adjusts the amounts as necessary.
	The warranty liability is included as a component of accrued liabilities in the accompanying condensed consolidated balance sheets. Changes in the warranty liability were as follows (in thousands):
		Three Months Ended March 31,
		2014			2013
	Balance at beginning of period	$	1,038		$	725
	Changes in existing warranty	93			20
	Warranty expense	256			179
	Obligations fulfilled	(491		)	(150		)
	Balance at end of period	$	896		$	774

EQUITY_AWARD_PLAN

EQUITY AWARD PLAN	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
EQUITY AWARD PLAN	'
	EQUITY AWARD PLAN
	Stock Option and Restricted Stock Unit Activity
	The following table summarizes the outstanding stock option activity and a summary of information related to stock options (in thousands, except per share amounts and years):
		Common Stock Options Outstanding
		Number of		Weighted				Weighted		Aggregate
		Shares		Average				Average		Intrinsic
				Exercise Price Per Share				Remaining		Value
								Contractual Life (Years)
	Balance, December 31, 2013	19,609		$	4.51			7.3		$	195,142
	Options granted	111		13.44
	Options exercised	-1,119		2
	Options forfeited	-98		8.47
	Balance, March 31, 2014	18,503		$	4.69			7.1		$	147,570
	Options exercisable as of March 31, 2014	10,730		$	2.84			6.4		$	101,973
	Options vested and expected to vest as of March 31, 2014	18,184		$	4.6			7.1		$	146,215
	The weighted average grant date fair value of stock options was approximately $8.04 and $14.00 per share for the three months ended March 31, 2014 and 2013, respectively.
	The total intrinsic value of options exercised was approximately $13.3 million and $0.7 million for the three months ended March 31, 2014 and 2013, respectively.
	The following table summarizes the outstanding activity of RSUs and a summary of information related to RSUs (in thousands, except per share amounts and years):
		Restricted Stock Units Outstanding
		Number of Shares			Weighted Average Grant Date Fair Value Per Share				Weighted		Aggregate Intrinsic Value
									Average
									Remaining
									Contractual Life (Years)
	Balance, December 31, 2013	1,011			$	17.11			1.6		$	14,356
	RSUs granted	55			13.52
	RSUs vested	(126	)		20.8
	RSUs forfeited	(8	)		18.94
	Balance, March 31, 2014	932			$	16.38			1.6		$	11,330
	The following table summarizes the stock activity and the total number of shares available for grant under the 2012 Plan as of March 31, 2014 (in thousands):
		Number of
		Shares
	Balance, December 31, 2013	8,547
	Additional shares reserved for issuance	4,035
	RSUs granted	(55	)
	RSUs forfeited	8
	Options granted	(111	)
	Options forfeited	98
	Balance, March 31, 2014	12,522
	Fair Value Disclosures
	The Company measures compensation expense for all stock-based payment awards, including stock options and RSUs granted to employees and purchases under the Company's Employee Stock Purchase Plan (“ESPP”), based on the estimated fair values on the date of the grant. The fair value of each stock option granted is estimated using the Black-Scholes option pricing model. The fair value of each RSU granted represents the closing price of the Company's common stock on the date of grant. The fair value of purchases under the Company's ESPP is calculated based on the closing price of the Company's stock on the date of grant and the value of put and call options estimated using the Black-Scholes option pricing model. Stock-based compensation is recognized on a straight-line basis over the requisite service period, net of estimated forfeitures. The forfeiture rate is based on an analysis of the Company’s actual historical forfeitures.
	The Company accounts for stock options issued to non-employees based on the fair value of the awards determined using the Black-Scholes option pricing model. The fair value of stock options granted to non-employees is re-measured as the stock options vest, and the resulting change in fair value, if any, is recognized in the Company’s condensed consolidated statement of operations during the period the related services are rendered.
	Employee Stock Options
	The following table summarizes the weighted average assumptions relating to the Company's stock options:
		Three Months Ended March 31,
		2014			2013
	Volatility	64.3	%		71	%
	Expected term (years)	6.1			6
	Risk-free interest rate	2	%		0.8	%
	Dividend yield	—			—
	Employee Stock Purchase Plan
	There were no stock purchase rights granted under the ESPP during the three months ended March 31, 2014 and 2013.
	Stock-based Compensation Expense
	The following table summarizes the stock-based compensation expense recorded for stock awards issued to employees and non-employees (in thousands):
		Three Months Ended March 31,
		2014				2013
	Cost of revenue	$	245			$	176
	Research and development	2,096				1,299
	Sales and marketing	1,615				1,005
	General and administrative	2,390				1,550
	Total stock-based compensation	6,346				4,030
	Tax benefit from stock-based compensation	(1,635		)		—
	Total stock-based compensation, net of tax effect	$	4,711			$	4,030
	At March 31, 2014, the total unrecognized stock-based compensation expense related to employees and non-employees under the Company's stock plans was $45.5 million, net of estimated forfeitures. The unamortized expense will be recognized over a weighted-average period of 2.1 years.

EARNINGS_PER_SHARE

EARNINGS PER SHARE	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
EARNINGS PER SHARE	'
	EARNINGS PER SHARE
	Basic net income per share is computed by dividing the net income by the weighted-average number of common shares outstanding during the period. Diluted net income per share is computed by dividing the net income by the weighted-average number of common shares outstanding, including potential dilutive common shares assuming the dilutive effect of outstanding stock awards using the treasury stock method. Under the treasury stock method, the amount the employee must pay for exercising stock awards, the amount of compensation cost for future service that the Company has not yet recognized, and the amount of tax benefits that would be recorded in additional paid-in capital when the award becomes deductible are collectively assumed to be used to repurchase shares.
	The following table presents the calculation of basic and diluted net income per share (in thousands, except per share data):
		Three Months Ended March 31,
		2014			2013
	Numerator:
	Net income	$	273		$	314
	Denominator:
	Weighted-average shares used in computing net income per share:
	Basic	81,277			74,201
	Weighted-average effect of potentially dilutive shares:
	Employee stock options	11,920			19,874
	RSUs and other dilutive securities	114			250
	Diluted	93,311			94,325
	Net income per share:
	Basic	$	0		$	0
	Diluted	$	0		$	0
	The following table summarizes the weighted average outstanding stock awards that were excluded from the diluted per share calculation because to include them would have been anti-dilutive for the period (in thousands):
		Three Months Ended March 31,
		2014		2013
	Stock options	2,305		641
	RSUs and other dilutive securities	745		—
	Total	3,050		641

INCOME_TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'
	INCOME TAXES
	Income tax expense of $0.7 million for the three months ended March 31, 2014 was primarily due to certain nondeductible stock-based compensation expenses, which caused the effective tax rate to exceed the statutory rate for the period. The tax benefit of $0.5 million for the three months ended March 31, 2013 was primarily due to the retroactive extension of federal R&D credits.
	The Company evaluates the realization of its deferred tax assets based on the expiration period of the asset, projections of future taxable income in the relevant tax jurisdiction, the effect of tax planning strategies, and other factors. Both positive and negative evidence is weighed using significant judgment. Based on an evaluation of these factors, the Company believes that the realization of its deferred tax assets is more likely than not and therefore its deferred tax assets are without a valuation allowance. In future periods, positive and negative evidence can change due to revised projections of future taxable income in the relevant jurisdictions and other factors listed above. If negative evidence were to outweigh positive evidence, a valuation allowance would be recorded with an increase in tax expense in the consolidated statements of operations and without any change in net cash provided by operating activities in the consolidated statements of cash flows.

SEGEMENT_INFORMATION

SEGEMENT INFORMATION	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
SEGMENT INFORMATION	'
	SEGMENT INFORMATION
	The Company operates in one industry segment selling gateways, controllers and access points along with related software and services.
	Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, or decision making group, in deciding how to allocate resources and in assessing performance. The Company’s chief operating decision maker is its chief executive officer. The Company’s chief executive officer reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. The Company has one business activity, and there are no segment managers who are held accountable for operations, operating results and plans for products or components below the consolidated unit level. Accordingly, the Company reports as a single operating segment. The Company and its chief executive officer evaluate performance based primarily on revenue in the geographic locations in which the Company operates. Revenue is attributed by geographic location based on the bill-to location of the Company’s customers.
	The following presents total revenue by geographic region (in thousands):
		Three Months Ended March 31,
		2014		2013
	Americas:
	United States	$	38,475	$	23,576
	Other Americas	2,012		1,879
	Total Americas	40,487		25,455
	EMEA:
	United Kingdom	5,914		6,989
	Other EMEA	14,138		8,626
	Total EMEA	20,052		15,615
	APAC:
	Total APAC	14,513		16,171
	Total revenue	$	75,052	$	57,241
	As of March 31, 2014, the Company had property and equipment, net, of $7.8 million, $3.5 million and $0.2 million located in the United States, APAC, and EMEA, respectively.

DESCRIPTION_OF_BUSINESS_AND_SU1

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Description of Business	'
	Description of Business—Ruckus Wireless, Inc. (“Ruckus”) is a leading provider of carrier-class Wi-Fi solutions. Ruckus’s solutions, which it calls Smart Wi-Fi, are used by service providers and enterprises to solve network capacity and coverage challenges associated with the rapidly increasing traffic and number of users and client devices on wireless networks. Ruckus’s Smart Wi-Fi solutions offer carrier-class features and functionality such as enhanced reliability, consistent performance, extended range and massive scalability. Ruckus’s products include gateways, wireless local area network (“WLAN”) controllers and high performance access points. These products incorporate the Company’s patented and proprietary technologies, such as Smart Radio, Smart QoS, Smart Mesh and Smart Scale, to enable high performance, reliable, adaptive and high capacity connectivity in a wide range of challenging operating conditions faced by service providers and enterprises.
Basis of Presentation	'
	Basis of Presentation— The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in Ruckus’s Annual Report on Form 10-K for the year ended December 31, 2013, filed on March 3, 2014.
	The condensed consolidated balance sheet as of December 31, 2013, included herein, was derived from the audited financial statements as of that date, but does not include all disclosures including notes required by GAAP.
	In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year 2014 or any future period.
Principles of Consolidation	'
	Principles of Consolidation— The condensed financial statements include the accounts of Ruckus and its wholly owned subsidiaries (collectively, the “Company”). All intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates	'
	Use of Estimates— The preparation of financial statements in conformity with generally accepted accounting principles (“GAAP”) in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Significant estimates and assumptions made by management include the determination of revenue recognition, allowance for doubtful accounts, goodwill and intangible valuation, the fair value of stock awards, inventory valuation, estimates of warranty liability and accounting for income taxes. Management bases its estimates on historical experience and also on assumptions that it believes are reasonable. Actual results could materially differ from those estimates.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements—In June 2013, the FASB issued Accounting Standards Update 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. The standard gives guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists, with the purpose of reducing diversity in practice. This new standard requires the netting of unrecognized tax benefits against a deferred tax asset for a loss or other carryforward that would apply in settlement of the uncertain tax positions. The guidance became effective for the Company in the first quarter of 2014. The adoption of this guidance did not have a material impact on the consolidated financial position, results of operations, or cash flows of the Company.
Concentrations of Credit Risk and Significant Customers	'
	Concentrations of Credit Risk and Significant Customers— Financial instruments that subject the Company to significant concentrations of credit risk primarily consist of cash, cash equivalents, investments and accounts receivable. The Company invests only in high credit quality instruments and maintains its cash, cash equivalents and available-for-sale investments in fixed income securities. Management believes that the financial institutions that hold the Company’s investments are financially sound and, accordingly, are subject to minimal credit risk. Deposits held with banks may exceed the amount of insurance provided on such deposits. The Company’s accounts receivable are primarily derived from distributors and service providers located in the Americas, Europe, and Asia Pacific. The Company generally does not require its customers to provide collateral to support accounts receivable. To reduce credit risk, management performs ongoing credit evaluations of its customers’ financial condition. The Company has recorded an allowance for doubtful accounts for those receivables management has determined to not be collectible.
	The percentages of revenues from individual customers totaling greater than 10% of total consolidated Company revenues were as follows:
		Three Months Ended March 31,
		2014		2013
	Distributor A	14.8	%	13.5	%
	Distributor B	12.9	%	11	%
	Distributor C	11.9	%	*
	*    Less than 10%
	The percentage of receivables from individual customers totaling greater than 10% of total consolidated Company accounts receivable were as follows:
		March 31,		December 31,
		2014		2013
	Distributor C	17	%	10.4	%
	Distributor A	14.3	%	11.6	%
	Distributor D	*		11.2	%
	*    Less than 10%

DESCRIPTION_OF_BUSINESS_AND_SU2

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Percentage of Revenue from Individual Customers	'
	The percentages of revenues from individual customers totaling greater than 10% of total consolidated Company revenues were as follows:
		Three Months Ended March 31,
		2014		2013
	Distributor A	14.8	%	13.5	%
	Distributor B	12.9	%	11	%
	Distributor C	11.9	%	*
	*    Less than 10%
	The percentage of receivables from individual customers totaling greater than 10% of total consolidated Company accounts receivable were as follows:
		March 31,		December 31,
		2014		2013
	Distributor C	17	%	10.4	%
	Distributor A	14.3	%	11.6	%
	Distributor D	*		11.2	%
	*    Less than 10%

FAIR_VALUE_DISCLOSURE_Tables

FAIR VALUE DISCLOSURE (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Assets measured at fair value	'
	The Company’s assets that were measured at fair value by level within the fair value hierarchy were as follows (in thousands):
		31-Mar-14
		Fair Value		Level 1		Level 2		Level 3
	Assets
	Cash equivalents:
	Money market funds	$	29,051	$	29,051	$	—	$	—
	Corporate bonds	3,005		—		3,005		—
	Short-term investments:
	Corporate bonds	54,748		—		54,748		—
	Commercial paper	21,874		—		21,874		—
	Total assets measured and recorded at fair value	$	108,678	$	29,051	$	79,627	$	—
		31-Dec-13
		Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	47,773	$	47,773	$	—	$	—
	Short-term investments:
	Corporate bonds	47,290		—		47,290		—
	Commercial paper	13,588		—		13,588		—
	Total assets measured and recorded at fair value	$	108,651	$	47,773	$	60,878	$	—

INVESTMENTS_Tables

INVESTMENTS (Tables)	3 Months Ended
	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]	'
Schedule of available-for-sale investments	'
	Investments consisted of the following (in thousands):
		March 31, 2014
		Amortized Cost		Unrealized Gains			Unrealized Losses			Fair Value
	Corporate bonds	$	54,760	$	9		$	(21	)	$	54,748
	Commercial paper	21,874		—			—			21,874
	Total	$	76,634	$	9		$	(21	)	$	76,622
Schedule of available-for-sale investments in unrealized loss position	'
	Investments in an unrealized loss position at March 31, 2014 consisted of the following (in thousands):
		Less Than 12 Months
		Fair Value		Unrealized Loss
	Corporate bonds	$	28,745	$	(21	)

BUSINESS_COMBINATIONS_Tables

BUSINESS COMBINATIONS (Tables)	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
Purchase price allocation	'
	The purchase allocation for YFind is summarized as follows (in thousands):
		Fair Value
	Cash and cash equivalents	$	257
	Other tangible assets	8
	In-process research and development	6,000
	Goodwill	914
	Non-current deferred tax liabilities	(1,020		)
	Other liabilities assumed	(21		)
	Total purchase consideration	$	6,138

GOODWILL_AND_INTANGIBLES_ASSET1

GOODWILL AND INTANGIBLES ASSETS (Tables)	3 Months Ended
	Mar. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule intangible assets	'
	Intangible assets consisted of the following (in thousands, except years):
		Gross Carrying		Accumulated			Net		Weighted
		Amount		Amortization			Carrying		Average
							Amount		Remaining
									Life
	March 31, 2014:
	Purchased technology	$	6,600	$	(3,259	)	$	3,341	2.5 years
	In-process research and development	6,000		—			6,000
	Total	$	12,600	$	(3,259	)	$	9,341
	December 31, 2013:
	Purchased technology	$	6,600	$	(2,929	)	$	3,671	2.8 years
	In-process research and development	6,000		—			6,000
	Total	$	12,600	$	(2,929	)	$	9,671
Estimated future amortization of purchased intangible assets	'
	Estimated future amortization of intangible assets at March 31, 2014, excluding in-process research and development of $6.0 million, is as follows (in thousands):
	Year ending December 31,	Amount
	2014 (remaining nine months)	$	990
	2015	1,320
	2016	1,031
	Total amortization	$	3,341

DEFERRED_REVENUE_Tables

DEFERRED REVENUE (Tables)	3 Months Ended
	Mar. 31, 2014
Deferred Revenue Disclosure [Abstract]	'
Schedule of deferred revenue	'
	Deferred revenue consisted of the following (in thousands):
		March 31,		December 31,
		2014		2013
	Product	$	18,472	$	21,732
	Service	19,934		18,505
	Total deferred revenue	$	38,406	$	40,237
	Reported as:
	Current	$	30,264	$	33,139
	Non-current	8,142		7,098
	Total deferred revenue	$	38,406	$	40,237

COMMITMENTS_AND_CONTINGENCIES_

COMMITMENTS AND CONTINGENCIES (Tables)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of future minimum lease payments under non-cancellable operating leases	'
	Future minimum lease payments under non-cancelable operating leases were as follows (in thousands):
	Years ending December 31,	Amount
	2014 (remaining nine months)	$	2,885
	2015	3,289
	2016	2,591
	2017	2,358
	2018	2,353
	Thereafter	9,913
	Operating lease obligations	$	23,389
Schedule of changes in warranty liability	'
	The warranty liability is included as a component of accrued liabilities in the accompanying condensed consolidated balance sheets. Changes in the warranty liability were as follows (in thousands):
		Three Months Ended March 31,
		2014			2013
	Balance at beginning of period	$	1,038		$	725
	Changes in existing warranty	93			20
	Warranty expense	256			179
	Obligations fulfilled	(491		)	(150		)
	Balance at end of period	$	896		$	774

EQUITY_AWARD_PLAN_Tables

EQUITY AWARD PLAN (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Summary of stock options outstanding	'
	The following table summarizes the outstanding stock option activity and a summary of information related to stock options (in thousands, except per share amounts and years):
		Common Stock Options Outstanding
		Number of		Weighted				Weighted		Aggregate
		Shares		Average				Average		Intrinsic
				Exercise Price Per Share				Remaining		Value
								Contractual Life (Years)
	Balance, December 31, 2013	19,609		$	4.51			7.3		$	195,142
	Options granted	111		13.44
	Options exercised	-1,119		2
	Options forfeited	-98		8.47
	Balance, March 31, 2014	18,503		$	4.69			7.1		$	147,570
	Options exercisable as of March 31, 2014	10,730		$	2.84			6.4		$	101,973
	Options vested and expected to vest as of March 31, 2014	18,184		$	4.6			7.1		$	146,215
Summary of restricted stock units outstanding	'
	The following table summarizes the outstanding activity of RSUs and a summary of information related to RSUs (in thousands, except per share amounts and years):
		Restricted Stock Units Outstanding
		Number of Shares			Weighted Average Grant Date Fair Value Per Share				Weighted		Aggregate Intrinsic Value
									Average
									Remaining
									Contractual Life (Years)
	Balance, December 31, 2013	1,011			$	17.11			1.6		$	14,356
	RSUs granted	55			13.52
	RSUs vested	(126	)		20.8
	RSUs forfeited	(8	)		18.94
	Balance, March 31, 2014	932			$	16.38			1.6		$	11,330
Summary of stock activity and number of shares available for grant	'
	The following table summarizes the stock activity and the total number of shares available for grant under the 2012 Plan as of March 31, 2014 (in thousands):
		Number of
		Shares
	Balance, December 31, 2013	8,547
	Additional shares reserved for issuance	4,035
	RSUs granted	(55	)
	RSUs forfeited	8
	Options granted	(111	)
	Options forfeited	98
	Balance, March 31, 2014	12,522
Summary of stock options, valuation assumptions	'
	The following table summarizes the weighted average assumptions relating to the Company's stock options:
		Three Months Ended March 31,
		2014			2013
	Volatility	64.3	%		71	%
	Expected term (years)	6.1			6
	Risk-free interest rate	2	%		0.8	%
	Dividend yield	—			—
Schedule of allocation of stock-based compensation expense	'
	The following table summarizes the stock-based compensation expense recorded for stock awards issued to employees and non-employees (in thousands):
		Three Months Ended March 31,
		2014				2013
	Cost of revenue	$	245			$	176
	Research and development	2,096				1,299
	Sales and marketing	1,615				1,005
	General and administrative	2,390				1,550
	Total stock-based compensation	6,346				4,030
	Tax benefit from stock-based compensation	(1,635		)		—
	Total stock-based compensation, net of tax effect	$	4,711			$	4,030

EARNINGS_PER_SHARE_Tables

EARNINGS PER SHARE (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Schedule of calculation of basic and diluted net income (loss) per share	'
	The following table presents the calculation of basic and diluted net income per share (in thousands, except per share data):
		Three Months Ended March 31,
		2014			2013
	Numerator:
	Net income	$	273		$	314
	Denominator:
	Weighted-average shares used in computing net income per share:
	Basic	81,277			74,201
	Weighted-average effect of potentially dilutive shares:
	Employee stock options	11,920			19,874
	RSUs and other dilutive securities	114			250
	Diluted	93,311			94,325
	Net income per share:
	Basic	$	0		$	0
	Diluted	$	0		$	0
Summary of the outstanding redeemable convertible preferred stock, employee stock, employee stock options, RSUs and warrants excluded from the diluted per share calculation	'
	he following table summarizes the weighted average outstanding stock awards that were excluded from the diluted per share calculation because to include them would have been anti-dilutive for the period (in thousands):
		Three Months Ended March 31,
		2014		2013
	Stock options	2,305		641
	RSUs and other dilutive securities	745		—
	Total	3,050		641

SEGEMENT_INFORMATION_Tables

SEGEMENT INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Schedule of total revenue by geographic region	'
	The following presents total revenue by geographic region (in thousands):
		Three Months Ended March 31,
		2014		2013
	Americas:
	United States	$	38,475	$	23,576
	Other Americas	2,012		1,879
	Total Americas	40,487		25,455
	EMEA:
	United Kingdom	5,914		6,989
	Other EMEA	14,138		8,626
	Total EMEA	20,052		15,615
	APAC:
	Total APAC	14,513		16,171
	Total revenue	$	75,052	$	57,241

DESCRIPTION_OF_BUSINESS_AND_SU3

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Concentration of Credit Risk and Significant Customers) (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues | Distributor A	'	'
Revenue, Major Customer	'	'
Significant customer, as a percentage	14.80%	13.50%
Revenues | Distributor B	'	'
Revenue, Major Customer	'	'
Significant customer, as a percentage	12.90%	11.00%
Revenues | Distributor C	'	'
Revenue, Major Customer	'	'
Significant customer, as a percentage	11.90%	'
Accounts Receivables | Distributor A	'	'
Revenue, Major Customer	'	'
Significant customer, as a percentage	14.30%	11.60%
Accounts Receivables | Distributor C	'	'
Revenue, Major Customer	'	'
Significant customer, as a percentage	17.00%	10.40%
Accounts Receivables | Distributor D	'	'
Revenue, Major Customer	'	'
Significant customer, as a percentage	'	11.20%

FAIR_VALUE_DISCLOSURE_Details

FAIR VALUE DISCLOSURE (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Total assets measured and recorded at fair value	$108,678	$108,651
Fair Value | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Short-term investments, at fair value	54,748	47,290
Fair Value | Commercial paper	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Short-term investments, at fair value	21,874	13,588
Fair Value | Money Market Funds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Cash equivalents, at fair value	29,051	47,773
Fair Value | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Cash equivalents, at fair value	3,005	'
Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Total assets measured and recorded at fair value	29,051	47,773
Level 1 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Short-term investments, at fair value	0	0
Level 1 | Commercial paper	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Short-term investments, at fair value	0	0
Level 1 | Money Market Funds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Cash equivalents, at fair value	29,051	47,773
Level 1 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Cash equivalents, at fair value	0	'
Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Total assets measured and recorded at fair value	79,627	60,878
Level 2 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Short-term investments, at fair value	54,748	47,290
Level 2 | Commercial paper	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Short-term investments, at fair value	21,874	13,588
Level 2 | Money Market Funds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Cash equivalents, at fair value	0	0
Level 2 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Cash equivalents, at fair value	3,005	'
Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Total assets measured and recorded at fair value	0	0
Level 3 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Short-term investments, at fair value	0	0
Level 3 | Commercial paper	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Short-term investments, at fair value	0	0
Level 3 | Money Market Funds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Cash equivalents, at fair value	0	0
Level 3 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Cash equivalents, at fair value	$0	'

INVESTMENTS_Details

INVESTMENTS (Details) (USD $)	Mar. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities	'
Amortized Cost	$76,634
Unrealized Gains	9
Unrealized Losses	-21
Fair Value	76,622
Corporate bonds	'
Schedule of Available-for-sale Securities	'
Amortized Cost	54,760
Unrealized Gains	9
Unrealized Losses	-21
Fair Value	54,748
Commercial paper	'
Schedule of Available-for-sale Securities	'
Amortized Cost	21,874
Unrealized Gains	0
Unrealized Losses	0
Fair Value	$21,874

INVESTMENTS_Continuous_Unreali

INVESTMENTS (Continuous Unrealized Losses) (Details) (Corporate bonds, USD $)	Mar. 31, 2014
In Thousands, unless otherwise specified
Corporate bonds	'
Schedule of Available-for-sale Securities	'
Less than 12 months, Fair Value	$28,745
Less than 12 months, Unrealized Loss	($21)

BUSINESS_COMBINATIONS_Details

BUSINESS COMBINATIONS (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Jul. 18, 2013	Mar. 31, 2014	Jul. 18, 2013	Jul. 18, 2013	Jul. 18, 2013
			YFind	YFind	YFind	YFind	YFind
					Minimum	Maximum	RSU
Business Acquisition [Line Items]	'	'	'	'	'	'	'
Purchase consideration paid in cash	'	'	$6,138,000	'	'	'	'
Awards granted (in shares)	'	'	'	'	'	'	219,782
Options granted (in shares)	'	'	51,900	'	'	'	'
Vesting period for equity awards	'	'	'	'	'3 years	'4 years	'
Fair value of equity awards	'	'	3,600,000	'	'	'	'
Maximum obligation to pay retention bonuses	'	'	400,000	'	'	'	'
Payment period for retention bonuses	'	'	'2 years	'	'	'	'
Compensation costs related to acquisition	'	'	'	300,000	'	'	'
Purchase Allocation	'	'	'	'	'	'	'
Cash and cash equivalents	'	'	257,000	'	'	'	'
Other tangible assets	'	'	8,000	'	'	'	'
In-process research and development	'	'	6,000,000	'	'	'	'
Goodwill	9,945,000	9,945,000	914,000	'	'	'	'
Noncurrent deferred tax liabilities	'	'	-1,020,000	'	'	'	'
Other liabilities assumed	'	'	-21,000	'	'	'	'
Total purchase consideration	'	'	$6,138,000	'	'	'	'

GOODWILL_AND_INTANGIBLES_ASSET2

GOODWILL AND INTANGIBLES ASSETS (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Jul. 18, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Jul. 18, 2013
In Thousands, unless otherwise specified			YFind	Purchased technology	Purchased technology	In-process research and development	In-process research and development	In-process research and development
								YFind
Finite-Lived Intangible Assets [Line Items]	'	'	'	'	'	'	'	'
Gross Carrying Amount	'	'	'	$6,600	$6,600	'	'	'
Accumulated amortization	-3,259	-2,929	'	-3,259	-2,929	'	'	'
Finite-lived intangible assets, net	3,341	'	'	3,341	3,671	'	'	'
Indefinite-lived intangible assets	'	'	'	'	'	6,000	6,000	6,000
Intangible Assets, Gross	12,600	12,600	'	'	'	'	'	'
Intangible assets, net	9,341	9,671	'	'	'	'	'	'
Weighted average remaining useful life	'	'	'	'2 years 6 months	'2 years 10 months	'	'	'
Goodwill	$9,945	$9,945	$914	'	'	'	'	'

GOODWILL_AND_INTANGIBLES_ASSET3

GOODWILL AND INTANGIBLES ASSETS (Future Amortization Expense) (Details) (USD $)	Mar. 31, 2014
In Thousands, unless otherwise specified
Estimated Future Amortization Expense By Fiscal Year Maturity	'
2014 (remaining nine months)	$990
2015	1,320
2016	1,031
Finite-lived intangible assets, net	$3,341

DEFERRED_REVENUE_Details

DEFERRED REVENUE (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified			Product	Product	Services	Services	Services	Services
							Minimum	Maximum
Deferred Revenue Arrangement [Line Items]	'	'	'	'	'	'	'	'
Deferred revenue	$38,406	$40,237	$18,472	$21,732	$19,934	$18,505	'	'
Current	30,264	33,139	'	'	'	'	'	'
Noncurrent	$8,142	$7,098	'	'	'	'	'	'
Typical service support period, minimum	'	'	'	'	'	'	'1 year	'5 years

COMMITMENTS_AND_CONTINGENCIES_1

COMMITMENTS AND CONTINGENCIES (Operating Leases, Purchase Commitments, and Litigation) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Operating Leases, Future Minimum Payments [Abstract]	'
2014 (remaining nine months)	$2,885,000
2015	3,289,000
2016	2,591,000
2017	2,358,000
2018	2,353,000
Thereafter	9,913,000
Operating lease obligation	23,389,000
Gain on settlement of several patent litigation claims	800,000
Current purchase commitments	$11,400,000

COMMITMENTS_AND_CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Product Liabilities) (Details) (USD $)	3 Months Ended			3 Months Ended	1 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014	Apr. 30, 2013
				Hardware other than Indoor WLAN Products	Indemnification Agreement [Member]
Product Liability	'	'	'	'	'
Restricted cash for indemnity obligation	$5,000	'	$5,000	'	'
Indemnification Period	'	'	'	'	'6 years
Standard product warranty term	'	'	'	'1 year	'
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]	'	'	'	'	'
Beginning warranty liability	1,038	725	'	'	'
Changes in existing warranty	93	20	'	'	'
Warranty expense	256	179	'	'	'
Obligations fulfilled	-491	-150	'	'	'
Ending warranty liability	$896	$774	'	'	'

EQUITY_AWARD_PLAN_Stock_Option

EQUITY AWARD PLAN (Stock Option Activity) (Details) (Stock Options, USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Stock Options	'	'	'
Number of Shares	'	'	'
Beginning balance (shares)	19,609,000	'	'
Options granted (shares)	111,000	'	'
Options exercised (shares)	-1,119,000	'	'
Options forfeited (shares)	-98,000	'	'
Ending balance (shares)	18,503,000	'	19,609,000
Options exercisable (shares)	10,730,000	'	'
Options vested and expected to vest (shares)	18,184,000	'	'
Weighted Average Exercise Price	'	'	'
Beginning balance (in dollars per share)	$4.51	'	'
Options granted (in dollars per share)	$13.44	'	'
Options exercised (in dollars per share)	$2	'	'
Options forfeited (in dollars per share)	$8.47	'	'
Ending balance (in dollars per share)	$4.69	'	$4.51
Options exercisable (in dollars per share)	$2.84	'	'
Options vested and expected to vest (in dollars per share)	$4.60	'	'
Weighted Average Remaining Contractual Life	'	'	'
Weighted Average Remaining Contractual Life	'7 years 1 month 5 days	'	'7 years 3 months 20 days
Options exercisable	'6 years 4 months 25 days	'	'
Options vested and expected to vest	'7 years 1 month 5 days	'	'
Aggregate Intrinsic Value	'	'	'
Aggregate Intrinsic Value	$147,570,000	'	$195,142,000
Options exercisable	101,973,000	'	'
Options vested and expected to vest	146,215,000	'	'
Weighted average grant date fair value (in dollars per share)	$8.04	$14	'
Total intrinsic value of options exercised	$13,300,000	$700,000	'

EQUITY_AWARD_PLAN_Restricted_S

EQUITY AWARD PLAN (Restricted Stock Units Activity) (Details) (RSU, USD $)	3 Months Ended		12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
RSU	'	'	'
Number of Shares	'	'	'
Beginning balance (shares)	1,011	'	'
RSUs granted (shares)	55	'	'
RSUs exercised (shares)	-126	'	'
RSUs forfeited (shares)	-8	'	'
Ending balance (shares)	932	'	1,011
Weighted-Average Grant- Date Fair Value Per Share	'	'	'
Beginning balance (in dollars per share)	$17.11	'	'
RSUs granted (in dollars per share)	$13.52	'	'
RSUs vested (in dollars per share)	$20.80	'	'
RSUs forfeited (in dollars per share)	$18.94	'	'
Ending balance (in dollars per share)	$16.38	'	$17.11
RSU, Weighted Average Remaining Contractual Life	'	'1 year 7 months 7 days	'1 year 7 months 7 days
Aggregate Intrinsic Value	'	'	'
Aggregate Intrinsic Value	$11,330	'	$14,356

EQUITY_AWARD_PLAN_Stock_Activi

EQUITY AWARD PLAN (Stock Activity and Number of Shares Available for Grant) (Details)	3 Months Ended
	Mar. 31, 2014
Shares Available for Grant	'
Beginning balance (shares)	8,547,000
Additional shares reserved for issuance (shares)	4,035,000
Ending balance (shares)	12,522,000
RSU	'
Shares Available for Grant	'
RSUs granted (shares)	-55,000
RSUs forfeited (shares)	8,000
Stock Options	'
Shares Available for Grant	'
Options granted (shares)	-111,000
Options forfeited (shares)	98,000

EQUITY_AWARD_PLAN_Assumptions_

EQUITY AWARD PLAN (Assumptions) (Details) (Stock Options)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Stock Options	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'
Volatility	64.30%	71.00%
Expected term (years)	'6 years 0 months 27 days	'6 years
Risk-free interest rate	2.00%	0.80%
Dividend yield	0.00%	0.00%

EQUITY_AWARD_PLAN_Stockbased_C

EQUITY AWARD PLAN (Stock-based Compensation Expense) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'
Total stock-based compensation	$6,346,000	$4,030,000
Tax benefit from stock-based compensation	-1,635,000	0
Total stock-based compensation, net of tax effect	4,711,000	4,030,000
Compensation cost not yet recognized	45,500,000	'
Compensation cost not yet recognized, period for recognition	'2 years 1 month 15 days	'
Cost of revenue	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'
Total stock-based compensation	245,000	176,000
Research and development	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'
Total stock-based compensation	2,096,000	1,299,000
Sales and marketing	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'
Total stock-based compensation	1,615,000	1,005,000
General and administrative	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'
Total stock-based compensation	$2,390,000	$1,550,000

EARNINGS_PER_SHARE_Calculation

EARNINGS PER SHARE (Calculation of Basic and Diluted Net Income Per Share) (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Numerator:	'	'
Net income	$273	$314
Weighted-average shares used in computing net income per share:	'	'
Basic (in shares)	81,277	74,201
Weighted-average effect of potentially dilutive shares:	'	'
Employee stock options	11,920	19,874
RSUs and other dilutive securities	114	250
Diluted (in shares)	93,311	94,325
Net income per share of common stock:	'	'
Basic (USD per share)	$0	$0
Diluted (USD per share)	$0	$0

EARNINGS_PER_SHARE_Antidilutiv

EARNINGS PER SHARE (Antidilutive Securities) (Details)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'
Shares excluded from the diluted per share calculation	3,050	641
Stock Options	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'
Shares excluded from the diluted per share calculation	2,305	641
RSU	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'
Shares excluded from the diluted per share calculation	745	0

INCOME_TAXES_Details

INCOME TAXES (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Income Tax Disclosure [Abstract]	'	'
Income tax expense (benefit)	$698	($535)

SEGEMENT_INFORMATION_Details

SEGEMENT INFORMATION (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
	segment
Segment Reporting [Abstract]	'	'
Number of industry segments	1	'
Revenues from External Customers and Long-Lived Assets	'	'
Revenue	$75,052	$57,241
Americas	'	'
Revenues from External Customers and Long-Lived Assets	'	'
Revenue	40,487	25,455
United States	'	'
Revenues from External Customers and Long-Lived Assets	'	'
Revenue	38,475	23,576
Other Americas	'	'
Revenues from External Customers and Long-Lived Assets	'	'
Revenue	2,012	1,879
EMEA	'	'
Revenues from External Customers and Long-Lived Assets	'	'
Revenue	20,052	15,615
United Kingdom	'	'
Revenues from External Customers and Long-Lived Assets	'	'
Revenue	5,914	6,989
Other EMEA	'	'
Revenues from External Customers and Long-Lived Assets	'	'
Revenue	14,138	8,626
APAC	'	'
Revenues from External Customers and Long-Lived Assets	'	'
Revenue	$14,513	$16,171

SEGEMENT_INFORMATION_Property_

SEGEMENT INFORMATION (Property, Plant, and Equipment by Geographic Region) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Segment Reporting Information	'	'
Property and equipment, net	$11,534	$11,472
United States	'	'
Segment Reporting Information	'	'
Property and equipment, net	7,800	'
APAC	'	'
Segment Reporting Information	'	'
Property and equipment, net	3,500	'
EMEA	'	'
Segment Reporting Information	'	'
Property and equipment, net	$200	'