Ruckus Wireless (RKUS) 10-K 3 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Feb. 24, 2014	Jun. 28, 2013
Entity Information [Line Items]	'	'	'
Entity Registrant Name	'RUCKUS WIRELESS INC	'	'
Entity Central Index Key	'0001294016	'	'
Document Type	'10-K	'	'
Document Period End Date	31-Dec-13	'	'
Amendment Flag	'false	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	81,257,421	'
Entity Public Float	'	'	$723.30
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$91,282	$133,386
Short-term investments	60,878	0
Accounts receivable, net of allowance for doubtful accounts of $400 and $140 as of December 31, 2013 and 2012, respectively	44,638	41,296
Inventories	16,748	19,041
Deferred costs	4,207	5,188
Deferred tax assets	7,715	9,055
Prepaid expenses and other current assets	5,227	2,722
Total current assets	230,695	210,688
Property and equipment, net	11,472	8,959
Goodwill	9,945	9,031
Intangible assets, net	9,671	4,991
Non-current deferred tax asset	15,317	9,214
Restricted cash	5,000	0
Other assets	1,122	956
Total assets	283,222	243,839
Current liabilities:	'	'
Accounts payable	19,131	16,164
Accrued compensation	11,759	9,447
Accrued liabilities	6,231	5,371
Liabilities related to acquisitions	0	2,000
Deferred revenue	33,139	36,613
Total current liabilities	70,260	69,595
Non-current deferred revenue	7,098	3,873
Non-current deferred tax liabilities	854	0
Other non-current liabilities	1,161	160
Total liabilities	79,373	73,628
Commitments and contingencies (Note 8)	'	'
Stockholders’ equity:	'	'
Common stock, $0.001 par value; 250,000 shares authorized as of December 31, 2013 and 2012: 80,691 and 74,166 shares issued and outstanding at December 31, 2013 and 2012, respectively	81	74
Additional paid–in capital	225,575	193,731
Accumulated other comprehensive loss	-2	0
Accumulated deficit	-21,805	-23,594
Total stockholders’ equity	203,849	170,211
Total liabilities and stockholders’ equity	$283,222	$243,839

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Allowance for doubtful accounts	$400	$140
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	80,691,000	74,166,000
Common stock, shares outstanding	80,691,000	74,166,000

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue:	'	'	'
Product	$245,935	$201,913	$114,684
Service	17,132	12,740	5,339
Total revenue	263,067	214,653	120,023
Cost of revenue:	'	'	'
Product	78,344	70,478	44,705
Service	9,844	5,306	2,502
Total cost of revenue	88,188	75,784	47,207
Gross profit	174,879	138,869	72,816
Operating expenses:	'	'	'
Research and development	61,783	43,821	24,892
Sales and marketing	79,185	56,209	32,659
General and administrative	33,752	20,237	8,524
Total operating expenses	174,720	120,267	66,075
Operating income (loss)	159	18,602	6,741
Interest income (expense)	187	-472	-1,025
Other expense, net	-456	-3,664	-1,215
Income (loss) before income taxes	-110	14,466	4,501
Income tax expense (benefit)	-1,899	-17,238	315
Net income	1,789	31,704	4,186
Net income attributable to common stockholders	$1,789	$9,036	$379
Net income per share attributable to common stockholders:	'	'	'
Basic (USD per share)	$0.02	$0.36	$0.02
Diluted (USD per share)	$0.02	$0.24	$0.02
Weighted average number of shares outstanding, basic (in shares)	76,744	24,847	15,584
Weighted average number of shares outstanding, diluted (in shares)	93,361	37,775	23,269

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]	'	'	'
Net income	$1,789	$31,704	$4,186
Other comprehensive loss, net of tax:	'	'	'
Unrealized loss on short-term investment	-2	0	0
Comprehensive income	$1,787	$31,704	$4,186

Consolidated_Statements_of_Red

Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit) (USD $)

Total

Warrant

IntelliNet

Redeemable Convertible Preferred Stock

Redeemable Convertible Preferred Stock

Common Stock

Common Stock

Common Stock

Additional Paid-in Capital

Additional Paid-in Capital

Accumulated Other Comprehensive Income (Loss)

Accumulated Deficit

In Thousands, except Share data, unless otherwise specified

USD ($)

USD ($)

USD ($)

Warrant

USD ($)

Warrant

IntelliNet

USD ($)

IntelliNet

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Balances at at Dec. 31, 2010

($54,835)

'

'

$51,257

'

$15

'

'

$4,634

'

$0

($59,484)

Balances at (in shares) at Dec. 31, 2010

'

'

'

43,285,000

'

15,132,000

'

'

'

'

'

'

Increase (Decrease) in Stockholders' Equity [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation expense

2,268

'

'

'

'

'

'

'

2,268

'

'

'

Issuance of common stock upon exercise of stock options (in shares)

'

'

'

'

'

1,724,000

'

'

'

'

'

'

Issuance of common stock upon exercise of stock options

453

'

'

'

'

2

'

'

451

'

'

'

Vesting of early exercised stock options

61

'

'

'

'

'

'

'

61

'

'

'

Repurchase of unvested early exercised common stock options (in shares)

'

'

'

'

'

-6,000

'

'

'

'

'

'

Repurchase of unvested early exercised common stock options

0

'

'

'

'

'

'

'

'

'

'

'

Common stock issued for IntelliNet acquisition (in shares)

'

'

'

'

'

'

'

1,423,000

'

'

'

'

Common stock issued for IntelliNet acquisition

3,031

'

3,031

'

'

'

'

1

'

3,030

'

'

Excess tax benefit from stock options exercised

18

'

'

'

'

'

'

'

18

'

'

'

Issuance of warrants

75

'

'

'

'

'

'

'

75

'

'

'

Net income

4,186

'

'

'

'

'

'

'

'

'

'

4,186

Balances at at Dec. 31, 2011

-44,743

'

'

51,257

'

18

'

'

10,537

'

0

-55,298

Balances at (in shares) at Dec. 31, 2011

'

'

'

43,285,000

'

18,273,000

'

'

'

'

'

'

Increase (Decrease) in Stockholders' Equity [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation expense

8,451

'

'

'

'

'

'

'

8,451

'

'

'

Issuance of common stock upon exercise of stock options (in shares)

'

'

'

'

'

812,000

'

'

'

'

'

'

Issuance of common stock upon exercise of stock options

630

'

'

'

'

1

'

'

629

'

'

'

Vesting of early exercised stock options

113

'

'

'

'

'

'

'

113

'

'

'

Repurchase of unvested early exercised common stock options (in shares)

'

'

'

'

'

-2,000

'

'

'

'

'

'

Repurchase of unvested early exercised common stock options

0

'

'

'

'

'

'

'

'

'

'

'

Issuance of Series G redeemable convertible preferred stock, net of issuance cost (in shares)

'

'

'

4,590,000

'

'

'

'

'

'

'

'

Issuance of Series G redeemable convertible preferred stock, net of issuance cost

0

'

'

24,883

'

'

'

'

'

'

'

'

Cashless exercise of preferred stock warrants (in shares)

'

'

'

'

106,000

'

'

'

'

'

'

'

Cashless exercise of preferred stock warrant

0

'

'

'

1,589

'

'

'

'

'

'

'

Cashless exercise of common stock warrant

'

'

'

'

'

'

102,000

'

'

'

'

'

Issuance of common stock upon initial public offering, net of issuance costs (in shares)

'

'

'

'

'

7,000,000

'

'

'

'

'

'

Issuance of common stock upon initial public offering, net of issuance costs

93,999

'

'

'

'

7

'

'

93,992

'

'

'

Conversion of preferred stock to common stock upon initial public offering (in shares)

'

'

'

-47,981,000

'

47,981,000

'

'

'

'

'

'

Conversion of preferred stock to common stock upon initial public offering

77,729

'

'

-77,729

'

48

'

'

77,681

'

'

'

Conversion of preferred stock warrants to common stock warrants upon initial public offering

2,303

'

'

'

'

'

'

'

2,303

'

'

'

Common stock issued for IntelliNet acquisition

0

'

'

'

'

'

'

'

'

'

'

'

Excess tax benefit from stock options exercised

25

'

'

'

'

'

'

'

25

'

'

'

Net income

31,704

'

'

'

'

'

'

'

'

'

'

31,704

Balances at at Dec. 31, 2012

170,211

'

'

0

'

74

'

'

193,731

'

0

-23,594

Balances at (in shares) at Dec. 31, 2012

'

'

'

0

'

74,166,000

'

'

'

'

'

'

Increase (Decrease) in Stockholders' Equity [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation expense

18,701

'

'

'

'

'

'

'

18,701

'

'

'

Issuance of common stock upon exercise of stock options (in shares)

5,903,000

'

'

'

'

5,903,000

'

'

'

'

'

'

Issuance of common stock upon exercise of stock options

7,236

'

'

'

'

6

'

'

7,230

'

'

'

Issuance of common stock in connection with employee stock purchase plan (in shares)

'

'

'

'

'

345,000

'

'

'

'

'

'

Issuance of common stock in connection with employee stock purchase plan

3,860

'

'

'

'

1

'

'

3,859

'

'

'

Vesting of early exercised stock options

35

'

'

'

'

'

'

'

35

'

'

'

Repurchase of unvested early exercised common stock options (in shares)

'

'

'

'

'

-1,000

'

'

'

'

'

'

Repurchase of unvested early exercised common stock options

0

'

'

'

'

'

'

'

'

'

'

'

Cashless exercise of common stock warrant

'

278,021

'

'

'

'

278,000

'

'

'

'

'

Common stock issued for IntelliNet acquisition

0

'

'

'

'

'

'

'

'

'

'

'

Excess tax benefit from stock options exercised

2,019

'

'

'

'

'

'

'

2,019

'

'

'

Other comprehensive loss

-2

'

'

'

'

'

'

'

'

'

-2

'

Net income

1,789

'

'

'

'

'

'

'

'

'

'

1,789

Balances at at Dec. 31, 2013

$203,849

'

'

$0

'

$81

'

'

$225,575

'

($2)

($21,805)

Balances at (in shares) at Dec. 31, 2013

'

'

'

0

'

80,691,000

'

'

'

'

'

'

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities	'	'	'
Net income	$1,789	$31,704	$4,186
Adjustments to reconcile net income to cash provided by operating activities:	'	'	'
Depreciation and amortization	6,591	4,850	2,072
Provision for doubtful accounts	911	179	57
Stock-based compensation	18,701	8,451	2,268
Amortization of investment premiums, net of accretion of purchase discounts	1,071	0	0
Change in fair value of preferred stock warrants	0	2,842	868
Revaluation of contingent liability	0	400	0
Accretion of debt discount	0	93	84
Deferred income taxes	-2,909	-18,281	55
Excess income tax benefit from the exercise of stock options	-2,019	-25	-18
Loss on disposal of property and equipment	175	35	0
Changes in operating assets and liabilities, net of effects of business combination:	'	'	'
Accounts receivable	-4,253	-21,073	-9,983
Inventories	2,293	-8,116	1,261
Deferred costs	981	-3,699	-16
Prepaid expenses and other current assets	-2,459	-1,313	-513
Other assets	134	-228	244
Accounts payable	2,792	4,031	3,523
Accrued compensation	2,304	4,573	2,156
Accrued liabilities	2,715	364	1,806
Deferred revenue	-249	23,305	6,901
Net cash provided by operating activities	28,568	28,092	14,951
Cash flows from investing activities	'	'	'
Cash used in acquisitions, net of cash acquired	-7,882	-2,000	-6,000
Purchase of investments	-83,442	0	0
Proceeds from the sale of investments	13,128	0	0
Proceeds from the maturity of investments	8,324	0	0
Change in restricted cash	-5,000	0	0
Purchase of property and equipment	-7,776	-7,531	-3,664
Increase in facility lease deposits	-300	-591	0
Net cash used in investing activities	-82,948	-10,122	-9,664
Cash flows from financing activities:	'	'	'
Proceeds from initial public offering	0	97,650	0
Initial public offering costs	-839	-2,812	0
Proceeds from exercise of stock options	7,236	630	453
Proceeds from sale of common stock under the employee stock purchase plan	3,860	0	0
Proceeds from exercise of unvested stock options, net of repurchases	0	2	120
Excess income tax benefit from the exercise of stock options	2,019	25	18
Proceeds from credit facilities	0	0	7,500
Payments on credit facilities	0	-5,000	-2,500
Payments on loans payable	0	-8,562	-1,569
Proceeds from issuance of redeemable convertible preferred stock	0	25,000	0
Issuance costs for redeemable convertible preferred stock	0	-117	0
Settlement of contingent consideration	0	-2,600	0
Net cash provided by financing activities	12,276	104,216	4,022
Net increase (decrease) in cash and cash equivalents	-42,104	122,186	9,309
Cash and cash equivalents at beginning of year	133,386	11,200	1,891
Cash and cash equivalents at end of year	91,282	133,386	11,200
Supplemental disclosure of cash flow information	'	'	'
Income taxes paid	915	934	221
Interest paid	0	761	810
Noncash investing and financing activities	'	'	'
Conversion of preferred stock into common stock	0	77,729	0
Issuance of warrants	0	0	75
Cashless exercise of warrants	0	1,589	0
Unpaid offering costs in additional paid-in capital	0	839	0
Vesting of early exercised stock options	35	113	61
Contingent consideration accrued for IntelliNet asset acquisition	0	0	6,600
Common stock issued for IntelliNet asset acquisition	0	0	3,031
Purchases of property and equipment recorded in accounts payable and accrued liabilities	$1,111	$928	$490

DESCRIPTION_OF_BUSINESS_AND_SU

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2013
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.
	Principles of Consolidation—The consolidated 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 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.
	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 carriers 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:
		Year Ended December 31,
		2013			2012			2011
	Distributor A	15.2	%		16.3	%		16.3	%
	Distributor B	12.4	%		*			11.4	%
	Distributor C	*			12.5	%		12.7	%
	*    Less than 10%
	The percentage of receivables from individual customers totaling greater than 10% of total consolidated Company accounts receivable were as follows:
		December 31,
		2013			2012
	Distributor A	11.6	%		10.3	%
	Distributor D	11.2	%		*
	Distributor E	10.4	%		*
	*    Less than 10%
	Cash and Cash Equivalents—The Company considers all highly liquid financial instruments with original maturities of 90 days or less to be cash equivalents. Cash and cash equivalents are stated at cost, which approximates fair value. The Company’s cash equivalents included interest-bearing bank accounts and money market funds.
	Restricted Cash—As of December 31, 2013, 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”). Refer to “Reimbursement of Penalties” in Note 8.
	Fair Value of Financial Instruments— The Company defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities which are required to be recorded at fair value, the Company considers the principal or most advantageous market in which to transact and the market-based risk. The Company applies fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. The carrying amounts reported in the consolidated financial statements approximate the fair value for cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities, due to their short-term nature.
	Short-Term Investments—The Company classifies investments as available-for-sale at the time of purchase as these investments are available to fund current operations. Available-for-sale investments are initially recorded at cost and periodically adjusted to fair value in the consolidated balance sheets. Unrealized gains and losses on these investments are reported as a separate component of accumulated other comprehensive income (loss). Realized gains and losses are reported in the consolidated statements of operations. A specific identification method is used to determine the cost basis of the short-term investments sold. The effects of reclassifications from accumulated other comprehensive loss to the income statement were insignificant for the year ended December 31, 2013. The investments are adjusted for the amortization of premiums and discounts until maturity and such amortization is included in interest income (expense).
	The Company's short-term investments consist primarily of corporate bonds and commercial paper. As the Company views all investments as available for sale, management has the ability and intent, if necessary, to liquidate any of these investments in order to meet the Company’s liquidity needs within the next 12 months. The Company’s policy is to protect the value of its investment portfolio and minimize principal risk by earning returns based on current interest rates.
	Investments are considered impaired when a decline in fair value is judged to be other-than-temporary. The Company consults with its investment managers and considers available quantitative and qualitative evidence in evaluating potential impairment of the investments on a quarterly basis. If the cost of an individual investment exceeds its fair value, the Company evaluates, among other factors, general market conditions, the duration and extent to which the fair value is less than cost, and the Company's intent and ability to hold the investment. Once a decline in fair value is determined to be other-than-temporary, the Company will record an impairment charge and establish a new cost basis in the investment. During the year ended December 31, 2013, the Company did not consider any of its investments to be other-than-temporarily impaired.
	Allowance for Doubtful Accounts—The Company records an allowance for doubtful accounts based on historical experience and a detailed assessment of the collectability of its accounts receivable. In estimating the allowance for doubtful accounts, management considers, among other factors, the aging of the accounts receivable, historical write-offs, and the credit-worthiness of each customer. If circumstances change, such as higher-than-expected defaults or an unexpected material adverse change in a major customer’s ability to meet its financial obligations, the Company’s estimate of the recoverability of the amounts due could be reduced by a material amount.
	Activity in the allowance for doubtful accounts was as follows (in thousands):
		Years Ended December 31,
		2013				2012				2011
	Balance at beginning of year	$	140			$	117			$	66
	Charged to expenses	911				179				57
	Write-offs	(651		)		(156		)		(6		)
	Balance at end of year	$	400			$	140			$	117
	Inventories—Inventories are carried at the lower of cost on a first-in, first-out basis, or market value. The Company evaluates inventory for excess and obsolete products, based on management’s assessment of future demand and market conditions. The Company subcontracts manufacturing of substantially all of its products. At December 31, 2013 and 2012, inventories were predominately comprised of finished goods.
	Deferred Costs—When the Company’s products have been delivered, but the product revenue associated with the arrangement has been deferred as a result of not meeting the revenue recognition criteria (see “Revenue Recognition” below), the related product costs are also deferred if the inventory is deemed recoverable. The deferred costs are recognized in cost of revenues when the related deferred revenue is recognized or when the inventory is deemed unrecoverable.
	Property and Equipment—Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is calculated using the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful lives of the leasehold improvements or the term of the related lease.
	Goodwill—Goodwill represents the excess of the purchase price of an acquired business over the fair value of the underlying net tangible and intangible assets. The Company evaluates goodwill for impairment annually in the fourth quarter of the Company’s fiscal year or whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable. Triggering events that may indicate impairment include, but are not limited to, a significant adverse change in customer demand or business climate that could affect the value of goodwill or a significant decrease in expected cash flows. No impairment of goodwill has been identified through December 31, 2013.
	Intangible Assets—Intangible assets consist of existing technology and in-process research and development resulting from acquisitions. The existing technology intangible assets are recorded at fair value and are amortized on a straight-line basis over their estimated useful lives. 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. Upon completion of development, the underlying intangible asset is amortized over its estimated useful life.
	Impairment of Long-Lived Assets—Management reviews property, equipment and intangible assets for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Determination of recoverability of purchased intangible assets is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. If property and equipment or intangible assets are considered to be impaired, the impairment to be recognized equals the amount by which the carrying value of the asset exceeds its fair market value. No impairment of property, equipment or intangible assets has been identified through December 31, 2013.
	Revenue Recognition—The Company generates revenue from the sale of hardware with embedded software and related post contract support (“PCS”) through a direct sales force and indirect relationships with its channel partners.
	Revenue is recognized when all of the following criteria are met:
	•	Persuasive evidence of an arrangement exists.    The Company relies upon sales contracts and purchase orders to determine the existence of an arrangement.
	•	Delivery has occurred.    Delivery is deemed to have occurred when title has transferred. The Company uses shipping documents to verify transfer of title.
	•	The fee is fixed or determinable.    The Company assesses whether the fee is fixed or determinable based on the terms associated with the transaction.
	•	Collectability is reasonably assured.    The Company assesses collectability based on credit analysis and payment history.
	The Company recognizes product revenue at the time of title transfer provided that all other revenue recognition criteria have been met.
	Certain distributors that stock the Company’s products are granted stock rotation rights as well as rebates for sales of the Company’s products. If the Company cannot reasonably estimate the impact of stock rotation rights and rebates for specific distributors, the arrangement fee is not fixed and determinable when products are shipped and revenue is deferred until the Company’s products are shipped to the distributor’s customer.
	Certain of the Company’s arrangements are multiple-element arrangements which consist of hardware products with embedded software and PCS. The Company’s hardware with the embedded software (which is a proprietary operating system that together with the hardware delivers the functionality desired by the Company’s customers), is considered a separate unit of accounting from PCS as the Company’s customers often buy its hardware products without PCS. For multiple-element arrangements, the Company allocates revenue to each unit of accounting based on an estimated selling price at the inception of the arrangement. The total arrangement consideration is allocated to each separate unit of accounting using the relative estimated selling prices of each unit. The Company limits the amount of revenue recognized for delivered elements to an amount that is not contingent upon future delivery of additional products or service.
	To determine the estimated selling price in multiple-element arrangements, the Company first looks to establish vendor specific objective evidence (“VSOE”) of selling price using the prices charged for a deliverable when sold separately. If VSOE of selling price cannot be established for a deliverable, the Company looks to establish third-party evidence (“TPE”) of selling price by evaluating the pricing of similar and interchangeable competitor products or services in standalone arrangements. However, as the Company’s products contain a significant element of proprietary technology and offer substantially different features and functionality from its competitors, the Company is unable to obtain comparable pricing information with respect to its competitors’ products. Therefore, the Company has not been able to obtain reliable evidence of TPE of selling price. If neither VSOE nor TPE of selling price can be established for a deliverable, the Company establishes best estimated selling price (“BESP”) by reviewing historical transaction information and considering several other internal factors including discounting and margin objectives.
	The Company makes certain estimates and maintains allowances for sales returns, stock rotation, and other programs based on its historical experience. To date, these estimates have not been significant.
	The Company recognizes services revenue from PCS ratably over the contractual service period, which is typically one to five years. Other services revenue is recognized as the services are rendered and has not been significant to date.
	Revenues are reported net of sales taxes. Shipping charges billed to partners are included in revenues and related costs are included in cost of revenue. To date, shipping charges have not been significant.
	Software Development Costs—Based on the Company product development process, technological feasibility is established upon completion of the working model. To date, costs incurred by the Company between the completion of a working model and the point at which the product is ready for general release have been insignificant. Accordingly, the Company has charged all such costs to research and development expense in the period incurred.
	Stock-Based Compensation—The Company measures compensation expense for all stock-based payment awards granted to employees, including stock options, restricted stock units (“RSUs”) and purchases under the Company's Employee Stock Purchase Plan (“ESPP”), based on the estimated fair value 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 common 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 nonemployees based on the fair value of the awards determined using the Black-Scholes option pricing model. The fair value of stock options granted to nonemployees is re-measured as the stock options vest, and the resulting change in fair value, if any, is recognized in the Company’s consolidated statement of operations during the period the related services are rendered.
	Foreign Currency—The functional currency of the Company’s foreign subsidiaries is the U.S. dollar. Monetary assets and liabilities are re-measured using the current exchange rate at the balance sheet date. Non-monetary assets and liabilities and capital accounts are re-measured using historical exchange rates. Revenues and expenses are re-measured using the average exchange rates in effect during the period. Foreign currency re-measurement gains and losses have not been material for any periods presented.
	Income Taxes—The Company utilizes the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are determined based on the differences between financial reporting and tax reporting bases of assets and liabilities, and are measured using enacted tax rates and laws that are expected to be in effect when the differences are expected to reverse. Valuation allowances are provided when necessary to reduce deferred tax assets to the amount expected to be realized. Significant management judgment is required in determining the period in which the reversal of a valuation allowance should occur. The Company is required to consider all available evidence, both positive and negative, such as historical levels of income and future forecasts of taxable income amongst other items, in determining whether a full or partial release of its valuation allowance is required. The Company is also required to forecast future taxable income in accordance with accounting standards that address income taxes to assess the appropriateness of a valuation allowance, which further requires the exercise of significant management judgment.
	The Company records uncertain tax positions in accordance with accounting standards on the basis of a two-step process whereby (1) a determination is made as to whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold the Company recognizes the largest amount of tax benefit that is greater than 50% likely to be realized upon ultimate settlement with the related tax authority. Interest and penalties related to uncertain tax positions are recognized in income tax expense (benefit).
	Loss Contingencies— The Company is subject to the possibility of various loss contingencies arising in the ordinary course of business. The Company considers the likelihood of loss or impairment of an asset, or the incurrence of a liability, as well as the Company's ability to reasonably estimate the amount of loss, in determining loss contingencies. An estimated loss contingency is accrued when it is probable that an asset has been impaired or a liability has been incurred and the amount of loss can be reasonably estimated. If the Company determines that a loss is possible and the range of the loss can be reasonably determined, then the Company discloses the range of the possible loss. The Company regularly evaluates available current information available to determine whether an accrual is required, an accrual should be adjusted or a range of possible loss should be disclosed.
	Recent Accounting Pronouncements—In June 2011, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update 2011-05, Presentation of Comprehensive Income. The standard requires entities to have more detailed reporting of comprehensive income. Specifically, the standard allows an entity to present components of net income and components of other comprehensive income in one continuous statement of comprehensive income, or in two separate, but consecutive statements. The guidance became effective for the Company in the first quarter of 2013 and applied retrospectively. The Company's adoption of this guidance did not have a material impact on its consolidated financial position, results of operations, or cash flows.
	In February 2013, the FASB issued Accounting Standards Update 2013-02, Comprehensive Income (Topic 220)-Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. The standard requires entities to present (either on the face of the income statement or in the notes) the effects on significant reclassifications of line items of the income statement out of accumulated other comprehensive income. The guidance became effective for the Company in the first quarter of 2013. The Company's adoption of this guidance did not have a material impact on its consolidated financial position, results of operations, or cash flows.
	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 will become effective for the Company in the first quarter of 2014 and should be applied prospectively. Early adoption is permitted. The Company does not expect that the adoption of this guidance will have a material impact on its consolidated financial position, results of operations, or cash flows.

FAIR_VALUE_DISCLOSURE

FAIR VALUE DISCLOSURE	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
FAIR VALUE DISCLOSURE	'
	FAIR VALUE DISCLOSURE
	Assets and liabilities recorded at fair value in the 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 years ended December 31, 2013 and 2012. 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 are as follows (in thousands):
		31-Dec-13
		Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	47,773	$	47,773	$	—	$	—
	Short-term investment:
	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	$	—
		31-Dec-12
		Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	109,020	$	109,020	$	—	$	—

INVESTMENTS

INVESTMENTS	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Investments	'
	INVESTMENTS
	Investments consist of the following (in thousands):
		December 31, 2013
		Amortized Cost		Unrealized Gains			Unrealized Losses			Fair Value
	Corporate bonds	$	47,294	$	9		$	(13	)	$	47,290
	Commercial paper	13,588		—			—			13,588
	Total	$	60,882	$	9		$	(13	)	$	60,878
	All of the Company's investments have a contractual maturity of less than 12 months from December 31, 2013. The gross realized gains and gross realized losses related to the Company’s available-for-sale investments were not material for the year ended December 31, 2013.
	Investments in an unrealized loss position at December 31, 2013 consist of the following (in thousands):
		Less Than 12 Months
		Fair Value		Unrealized Loss
	Corporate bonds	$	18,204	$	(13	)
	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	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
BUSINESS COMBINATIONS	'
	BUSINESS COMBINATIONS
	YFind Technologies
	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 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 a two years period from the date of hire. Both the equity awards and the retention bonuses are subject to certain continued employment restrictions. For the year ended December 31, 2013, the Company recorded compensation costs of $1.0 million in research and development expenses associated with the equity awards and the retention bonuses. Acquisition-related costs of $0.2 million are included in general and administrative expenses.
	The fair value estimates for the assets acquired and liabilities assumed were performed during the third quarter of 2013. 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 consolidated statements of operations.
	IntelliNet
	On October 12, 2011, the Company acquired certain assets of IntelliNet, a provider of network convergence solutions that accelerated the deployment of applications and services to the telecommunications industry. The Company acquired IntelliNet’s previously developed software suite (the “Purchased Technology”), certain fixed assets and an organized workforce having the necessary skills and experience to provide the necessary processes in order to integrate IntelliNet’s operations into the Company’s operations and further continue development of the Purchased Technology.
	The total purchase consideration was approximately $15.6 million and consisted of the following (in thousands):
		Fair Value
	Cash consideration paid at closing	$	6,000
	Common stock issued at closing (1.4 million shares)	3,031
	Holdback based on standard representations and warranties	4,000
	Contingent consideration ($3.0 million gross, net of $0.4 million discount)	2,600
	Total consideration	$	15,631
	The hold back amount of $4.0 million is payable in cash in four equal installments of $1.0 million every six months for two years. As of December 31, 2013, the Company had paid the hold back amount in full.
	Contingent consideration of $3.0 million, was paid in the fourth quarter of 2012. The estimated fair value at the date of acquisition was $2.6 million. The change in fair value of the contingent consideration of $0.4 million was recorded in the Company’s statement of operations in other expense, net during the year ended December 31, 2012.
	The Company determined the fair value of the various assets acquired, which consisted principally of the Purchased Technology. The Company did not assume any liabilities as a result of the acquisition. The excess of the purchase consideration over the fair value of the Purchased Technology was allocated to goodwill.
	The following table summarizes the estimated purchase allocation (in thousands, except estimated useful lives):
		Fair Value			Estimated
					Useful
					Lives
	Purchased technology	$	6,600		5 years
	Goodwill	9,031
	Total	$	15,631

GOODWILL_AND_INTANGIBLES_ASSET

GOODWILL AND INTANGIBLES ASSETS	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
GOODWILL AND INTANGIBLE ASSETS	'
	GOODWILL AND INTANGIBLE ASSETS
	Goodwill consisted of the following (in thousands):
			Amount
	31-Dec-11		$	9,031
	31-Dec-12		$	9,031
	Goodwill from the acquisition of YFind		914
	31-Dec-13		$	9,945
	Intangible assets consisted of the following (in thousands, except years):
		Gross Carrying			Accumulated			Net		Weighted
		Amount			Amortization			Carrying		Average
								Amount		Remaining
										Life
	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
	December 31, 2012:
	Purchased technology	$	6,600		$	(1,609	)	$	4,991	3.8 years
	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 completed in the second quarter of 2014.
	On October 12, 2011, the Company recorded the fair value of Purchased Technology of $6.6 million related to the acquisition of certain assets from IntelliNet. Amortization expense related to the Purchased Technology was $1.3 million for the year ended December 31, 2013 and 2012. Amortization expense is included as a component of cost of revenue in the accompanying consolidated statements of operations.
	Estimated future amortization of intangible assets with finite lives at December 31, 2013, was as follows (in thousands):
	Year ending December 31,	Amount
	2014	$	1,320
	2015	1,320
	2016	1,031
	Total amortization	$	3,671

PROPERTY_AND_EQUIPMENT_Notes

PROPERTY AND EQUIPMENT (Notes)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
PROPERTY AND EQUIPMENT	'
	PROPERTY AND EQUIPMENT
	Property and equipment consisted of the following (in thousands, except estimated useful lives):
		Estimated Useful Lives	31-Dec
			2013			2012
	Computer hardware	3 years	$	7,451		$	3,413
	Computer software	3 years	2,396			2,075
	Machinery, equipment, and tooling	2 to 3 years	8,718			6,818
	Furniture and fixtures	7 years	1,572			1,427
	Leasehold improvements	10 years	2,981			2,270
	Total property and equipment		23,118			16,003
	Less: accumulated depreciation and amortization		(11,646		)	(7,044		)
	Total property and equipment, net		$	11,472		$	8,959
	For the years ended December 31, 2013, 2012 and 2011, expense related to depreciation and amortization of property and equipment was $5.3 million, $3.5 million and $1.8 million respectively.

DEFERRED_REVENUE

DEFERRED REVENUE	12 Months Ended
	Dec. 31, 2013
Deferred Revenue Disclosure [Abstract]	'
DEFERRED REVENUE	'
	DEFERRED REVENUE
	Deferred revenue consisted of the following (in thousands):
		December 31,
		2013		2012
	Product	$	21,732	$	27,831
	Service	18,505		12,655
	Total deferred revenue	$	40,237	$	40,486
	Reported as:
	Current	$	33,139	$	36,613
	Non-current	7,098		3,873
	Total deferred revenue	$	40,237	$	40,486
	Deferred product revenue relates to arrangements where not all revenue recognition criteria have been met. Deferred services revenue represents support contracts billed on an annual basis in advance and revenue is recognized ratably over the support period, typically one to five years.
	As of December 31, 2012, the Company deferred $5.2 million in revenue related to a service provider for future products. During 2013, the Company recognized the $5.2 million in deferred product revenue with no related cost of product, as the rights to future products expired unused by the service provider.

COMMITMENTS_AND_CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
	Dec. 31, 2013
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. Rent expense was $4.4 million, $2.9 million, and $1.1 million for the years ended December 31, 2013, 2012 and 2011, respectively.
	Future minimum lease payments under non-cancellable operating leases are as follows (in thousands):
	Years ending December 31,	Amount
	2014	$	3,906
	2015	3,059
	2016	2,353
	2017	2,285
	2018	2,353
	Thereafter	9,913
	Operating lease obligation	$	23,869
	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.
	Purchase Commitments—As of December 31, 2013, the Company had current purchase commitments of $8.1 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 December 31, 2013 and 2012.
	Reimbursement of Penalties—As of December 31, 2013, 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 consolidated balance sheets. Changes in the warranty liability are as follows (in thousands):
		Years Ended December 31,
		2013			2012			2011
	Balance at beginning of year	$	725		$	489		$	605
	Changes in existing warranty	(41		)	47			(74		)
	Warranty expense	1,528			784			657
	Obligations fulfilled	(1,174		)	(595		)	(699		)
	Balance at end of year	$	1,038		$	725		$	489

EQUITY_AWARD_PLAN

EQUITY AWARD PLAN	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
EQUITY AWARD PLANS	'
	EQUITY AWARD PLAN
	Stock Option Plans—The Company has two equity incentive plans: the 2002 Stock Incentive Plan and the 2012 Plan. Effective January 31, 2012, the Company's board of directors terminated the 2002 Plan. The 2012 Plan is the successor to and continuation of the 2002 Plan. The 2012 Plan was subsequently amended and restated in July 2012 and further amended in September 2012, and approved by the Company’s stockholders in October 2012.
	The Company's 2012 Plan provides for the granting of stock options, restricted stock awards, RSUs, stock appreciation rights, and performance shares to employees, directors, and consultants. Awards granted under the 2012 Plan vest over the periods determined by the board of directors, generally two to four years, beginning from the vesting commencement date, and expire no more than 10 years from the date of grant.
	The maximum number of shares of common stock that may be issued under the Company's 2012 Plan is 32,000,000, which includes shares reserved for issuance under the 2002 Stock Plan at the time the 2012 Plan became effective, and any shares granted under the 2002 Plan that would have otherwise returned to the 2002 Plan. On January 1 of each year, starting with January 1, 2013, the maximum number of shares that may be issued increases by the lesser of by 5% of the total number of shares of the Company's capital stock outstanding on December 31 of the preceding year, or a lesser number of shares as determined by the board of directors. As of December 31, 2013 and 2012, approximately 29.2 million and 31.4 million shares were authorized for issuance under these plans.
	Employee Stock Purchase Plan—The ESPP was adopted by the board of directors and approved by the stockholders on October 5, 2012 and was effective upon completion of the Company's initial public offering.
	Under the Company's ESPP, the Company can grant stock purchase rights to all eligible employees during a one year offering period with purchase dates at the end of each six-month purchase periods. Each offering period will begin on the first trading date on or after May 16 and November 16 of each year. Shares are purchased through employees' payroll deductions, up to a maximum of 15% of employees' compensation for each purchase period, at purchase prices equal to 85% of the lesser of the closing price of the Company's common stock on the first trading day of the applicable offering period or the purchase date. No participant may purchase more than $25,000 worth of common stock or 2,000 shares of common stock in any one year offering period. The ESPP is compensatory and results in compensation expense.
	At the time the ESPP became effective, a total of 1,500,000 shares of common stock were reserved for issuance. The number of shares of common stock reserved for issuance under the ESPP will increase automatically each year on January 1, starting with January 1, 2013, continuing through and including January 1, 2022, by the lesser of (i) 2% of the total number of shares of the common stock outstanding on December 31 of the preceding calendar year; (ii) 3,000,000 shares of common stock; or (iii) such lesser number of shares as determined by the board of directors. Shares subject to purchase rights granted under the ESPP that terminate without having been exercised in full will not reduce the number of shares available. As of December 31, 2013 and 2012, approximately 2.6 million and 1.5 million shares were authorized for issuance under the ESPP. Employees purchased approximately 345,000 shares of common stock at an average exercise price of $11.20 during the year ended December 31, 2013.
	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, 2012	24,400		$	2.82			7.7		$	480,878
	Options granted	1,802		16.76
	Options exercised	-5,903		1.23
	Options forfeited	-690		4.98
	Balance, December 31, 2013	19,609		$	4.51			7.3		$	195,142
	Options exercisable as of December 31, 2013	10,715		$	2.45			6.5		$	126,357
	Options vested and expected to vest as of December 31, 2013	18,972		$	4.38			7.3		$	190,960
	The weighted average grant date fair value of stock options was approximately $10.33, $3.91 and $1.24 per share for the years ended December 31, 2013, 2012 and 2011, respectively.
	The total intrinsic value of options exercised was approximately $74.1 million, $4.8 million and $3.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. The aggregate intrinsic value represents the difference between the Company's estimated fair value of its common stock, prior to the IPO, or the closing stock price of the Company's common stock, following the IPO, compared to the exercise price of the outstanding, in-the-money options.
	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, 2012	—			$	—			—			$	—
	RSUs granted	1,058			17.1
	RSUs vested	—			—
	RSUs forfeited	(47	)		16.99
	Balance, December 31, 2013	1,011			$	17.11			1.61			$	14,356
	The following table summarizes the stock activity and the total number of shares available for grant under the 2012 Plan as of December 31, 2013 (in thousands):
		Number of
		Shares
	Balance, December 31, 2012	6,961
	Additional shares reserved for issuance	3,708
	RSUs granted	(1,058	)
	RSUs forfeited	47
	Options granted	(1,802	)
	Options forfeited	690
	Options repurchased	1
	Balance, December 31, 2013	8,547
	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 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.
	Volatility—The Company determined the share price volatility factor based on historical volatility of its peer group due to the limited trading history of its common stock.
	Expected Term—The Company’s expected term represents the period that the Company’s stock-based awards are expected to be outstanding and was calculated as the average of the option vesting and contractual terms, based on the simplified method provided by the Securities and Exchange Commission’s Staff Accounting Bulletin No. 110. The simplified method is used due to the lack of historical exercise data. The expected term for the ESPP is based on the term of the purchase period.
	Risk-Free Interest Rate—The risk-free interest rate is based on the U.S. Treasury zero coupon issues with remaining terms similar to the expected term of the stock option grants.
	Dividend Yield—The Company has never declared or paid any cash dividends and does not plan to pay cash dividends in the foreseeable future and, therefore, used an expected dividend yield of zero in the valuation model.
	Employee Stock Options
	The following table summarizes the weighted average assumptions relating to the Company's stock options:
		Years Ended December 31,
		2013			2012			2011
	Volatility	67.4	%		69.1	%		69.5	%
	Expected term (years)	6.07			6.03			6.12
	Risk-free interest rate	1.87	%		0.98	%		1.75	%
	Dividend yield	—			—			—
	Employee Stock Purchase Plan
	The following table summarizes the weighted average assumptions relating to the Company's ESPP:
	Years Ended December 31,
	2013			2012
Volatility	59.6	%		70	%
Expected term (years)	0.7			0.7
Risk-free interest rate	0.1	%		0.2	%
Dividend yield	—			—
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):
	Years Ended December 31,
	2013				2012				2011
Cost of revenue	$	818			$	243			$	148
Research and development	6,738				2,409				1,055
Sales and marketing	4,922				1,787				471
General and administrative	6,637				4,012				594
Total stock-based compensation	19,115				8,451				2,268
Tax benefit from stock-based compensation	(1,535		)		(2,417		)		—
Total stock-based compensation, net of tax effect	$	17,580			$	6,034			$	2,268
The following table presents stock-based compensation expense by award-type (in thousands):
	Years Ended December 31,
	2013				2012				2011
Stock options	$	13,381			$	8,286			$	2,268
RSUs	3,489				—				—
ESPP	2,245				165				—
Total stock-based compensation	19,115				8,451				2,268
Tax benefit from stock-based compensation	(1,535		)		(2,417		)		—
Total stock-based compensation, net of tax effect	$	17,580			$	6,034			$	2,268
For the year ended December 31, 2013, the Company recognized $0.4 million in stock-based compensation related to the cash settlement of equity awards held by former YFind employees.
At December 31, 2013, the total unrecognized stock-based compensation expense related to employees and non-employees under the Company's stock plans was $48.1 million, net of estimated forfeitures. The unamortized expense will be recognized over a weighted-average period of 2.3 years.

COMMON_STOCK_WARRANTS

COMMON STOCK WARRANTS	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
COMMON STOCK WARRANTS	'
	COMMON STOCK WARRANTS
	During 2013, warrants to purchase 295,748 shares of common stock were exercised into 278,021 shares of common stock in accordance with the net cashless exercise feature as provided under the original warrant agreements. As of December 31, 2013, no common stock warrants remained outstanding.

EARNINGS_PER_SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
EARNINGS PER SHARE	'
	EARNINGS PER SHARE
	For periods presented prior to the IPO, basic and diluted net income per common share was computed using the two-class method required for participating securities. Concurrent with the closing of the IPO in November 2012, all shares of outstanding preferred stock automatically converted into shares of the Company’s common stock. Following the date of the IPO, the two-class method was no longer required as the Company had one class of securities.
	Prior to the conversion of the preferred stock, holders of Series A-1, Series B, Series C, Series D, Series E, Series F and Series G redeemable convertible preferred stock were each entitled to receive non-cumulative dividends at the annual rate of $0.0136, $0.0294, $0.0690, $0.0876, $0.1092, $0.1188 and $0.3267 per share per annum, respectively, payable prior and in preference to any dividends on any shares of the Company's common stock. In the event a dividend was paid on common stock, the holders of preferred stock were entitled to a proportionate share of any such dividend as if they were holders of common stock (on an as-if converted basis). The holders of the Company's preferred stock did not have a contractual obligation to share in the losses of the Company. The Company considered its preferred stock to be participating securities and, in accordance with the two-class method, earnings allocated to preferred stock and the related number of outstanding shares of preferred stock have been excluded from the computation of basic and diluted net income per common share.
	Under the two-class method, net income attributable to common stockholders is determined by allocating undistributed earnings, calculated as net income less current period preferred stock non-cumulative dividends, between common stock and preferred stock. In computing diluted net income attributable to common stockholders, undistributed earnings are re-allocated to reflect the potential impact of dilutive securities. Basic net income per common share is computed by dividing the net income attributable to common stockholders by the weighted-average number of common shares outstanding during the period. Shares of common stock subject to repurchase resulting from the early exercise of employee stock options were considered participating securities and are therefore included in the basic weighted-average common shares outstanding. Diluted net income per share attributable to common stockholders is computed by dividing the net income attributable to common stockholders 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.
	The following table presents the calculation of basic and diluted net income per share (in thousands, except per share data):
		Years Ended December 31,
		2013			2012			2011
	Numerator:
	Net income	$	1,789		$	31,704		$	4,186
	Less: Undistributed earnings allocated to participating securities	—			(22,668		)	(3,807		)
	Net income attributable to common stockholders, basic and diluted	$	1,789		$	9,036		$	379
	Denominator:
	Weighted-average shares used in computing net income per share attributable to common stockholders:
	Basic	76,744			24,847			15,584
	Weighted-average effect of potentially dilutive shares:
	Employee stock options	16,442			12,788			7,451
	RSUs and other dilutive securities	175			140			234
	Diluted	93,361			37,775			23,269
	Net income per share of common stock:
	Basic	$	0.02		$	0.36		$	0.02
	Diluted	$	0.02		$	0.24		$	0.02
	The following table summarizes the weighted average outstanding stock awards and redeemable convertible preferred stock that were excluded from the diluted per share calculation because to include them would have been anti-dilutive for the period (in thousands):
		Years Ended December 31,
		2013		2012			2011
	Stock options	1,134		3,348			2,544
	RSUs	233		—			—
	Redeemable convertible preferred stock	—		—			43,285
	Total	1,367		3,348			45,829

INCOME_TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'
	INCOME TAXES
	The domestic and foreign components of income (loss) before the provision for income taxes for the years ended December 31, 2013, 2012 and 2011 were as follows (in thousands):
		Years Ended December 31,
		2013			2012			2011
	Domestic	$	(1,015	)	$	13,235		$	4,149
	Foreign	905			1,231			352
	Total	$	(110	)	$	14,466		$	4,501
	During the years ended December 31, 2013, 2012 and 2011, the Company’s income tax expense (benefit) was as follows (in thousands):
		Years Ended December 31,
		2013			2012			2011
	Current expense:
	Federal	$	1,880		$	—		$	—
	State	143			317			65
	Foreign	1,006			762			213
	Total current expense	3,029			1,079			278
	Deferred expense (benefit):
	Federal	(3,445		)	(13,805		)	36
	State	(1,172		)	(4,467		)	1
	Foreign	(311		)	(45		)	—
	Total deferred expense (benefit)	(4,928		)	(18,317		)	37
	Total income tax expense (benefit)	$	(1,899	)	$	(17,238	)	$	315
	The difference between the income tax expense (benefit) and the amount computed by applying the statutory federal income tax rate to the income (loss) before income taxes is as follows (in thousands):
		Years Ended December 31,
		2013			2012			2011
	Federal statutory rate	$	(38	)	$	4,918		$	1,530
	State taxes, net of federal income tax benefit	86			417			43
	Non-deductible expenses	209			134			74
	Stock-based compensation	1,535			701			214
	Preferred stock warrant liability	—			966			295
	Acquisition cost	110			—			—
	Foreign tax deduction	(101		)	—			—
	Tax credits	(4,020		)	(884		)	(589		)
	Foreign tax rate differential	324			273			47
	Other items not individually material	(4		)	116			50
	Change in statutory rate	—			(262		)	—
	Change in valuation allowance	—			(23,617		)	(1,349		)
	Total income tax expense (benefit)	$	(1,899	)	$	(17,238	)	$	315
	The Company records deferred tax assets if the realization of such assets is more likely than not. Significant management judgment is required in determining whether a valuation allowance against the Company's deferred tax assets is required. The Company has considered all available evidence, both positive and negative, such as historical levels of income and predictability of future forecasts of taxable income, in determining whether a valuation allowance is required. The Company is also required to forecast future taxable income in accordance with accounting standards that address income taxes to assess the appropriateness of a valuation allowance, which further requires the exercise of significant management judgment.
	As of December 31, 2013, the Company had cumulative income before tax for the three years then ended. Based on its historical operating performance, as well as the Company's expectation that its operations will generate sufficient taxable income in future periods to realize the tax benefits associated with the deferred tax assets, the Company has concluded that it was more likely than not that the Company would be able to realize the benefit of the U.S. federal and state deferred tax assets in the future. As a result, the Company did not record a valuation allowance against its net deferred tax assets during the year ended December 31, 2013.
	The Company will continue to assess the need for a valuation allowance on the deferred tax assets by evaluating both positive and negative evidence that may exist on a quarterly basis. Any adjustment to the deferred tax asset valuation allowance would be recorded in the statement of operations for the period that the adjustment is determined to be required.
	Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands):
		As of December 31,
		2013			2012
	Deferred tax assets:
	Accruals and reserves	$	1,641		$	3,308
	Tax credits	6,719			4,700
	Fixed assets and intangibles, other than goodwill	3,402			2,208
	Net operating losses	1,645			3,490
	Stock-based compensation	7,131			3,386
	Deferred revenue	1,448			1,532
	Other	1,517			—
	Total deferred tax assets	23,503			18,624
	Deferred tax liabilities
	Intangible assets	(1,020		)	—
	Goodwill	(305		)	(355		)
	Net deferred tax assets	$	22,178		$	18,269
	As reported:
	Current deferred tax asset	$	7,715		$	9,055
	Non-current deferred tax assets	15,317			9,214
	Non-current deferred tax liabilities	(854		)	—
	Net deferred tax assets	$	22,178		$	18,269
	As of December 31, 2013, the Company had net operating loss carryforwards of approximately $54.8 million for federal purposes and $50.1 million for state purposes, and $3.4 million for foreign purposes. If not utilized, these carryforwards will begin to expire in 2025 for federal purposes and 2016 for state purposes.
	The Tax Reform Act of 1986 limits the use of net operating loss and tax credit carryforwards in certain situations where stock ownership changes occur. In the event the Company has had a change in ownership, the future utilization of the Company's net operating loss and tax credit carryforwards could be limited.
The Company has research credit carryforwards of approximately $6.1 million for federal purposes and $6.1 million for California purposes. Approximately $2.0 million of federal research credits and $0.1 million of California research credits relate to stock option deductions in excess of book expense, the tax effect of which would be a credit to additional paid-in capital if realized. If not utilized, the federal carryforwards will begin to expire in 2024. The California credit carryforwards do not expire.
As a result of certain realization requirements of the accounting guidance for stock-based compensation, the table of deferred tax assets and liabilities shown above does not include certain deferred tax assets at December 31, 2013 and 2012 that arose directly from (or the use of which was postponed by) tax deductions related to equity compensation in excess of compensation recognized for financial reporting. Approximately $54.5 million of federal net operating losses and $26.4 million of state net operating losses, and $2.3 million of foreign net operating losses relate to stock compensation deductions in excess of book expense, the tax effect of which would be to credit additional paid-in capital if realized. The Company uses the accounting guidance for ordering under ASC Topic 740 Income Taxes, for the purpose of determining when excess tax benefits have been realized.
The undistributed earnings from the Company’s foreign subsidiaries are not subject to a United States tax provision because it is management’s intention to permanently reinvest such undistributed earnings outside of the United States. The Company evaluates its circumstances and reassesses this determination on a periodic basis. As of December 31, 2013, the determination of the unrecorded deferred tax liability related to these earnings was immaterial. If circumstances change and it becomes apparent that some or all of the undistributed earnings of the Company’s foreign subsidiaries will be remitted in the foreseeable future, the Company will be required to recognize a deferred tax liability on those amounts.
The Company has foreign tax credit carryforwards of approximately $0.5 million for federal purposes. If not utilized, the federal carryforward will begin to expire in 2019.
The Company maintains liabilities for uncertain tax positions. These liabilities involve considerable judgment and estimation and are continuously monitored by management based on the best information available, including changes in tax regulations, the outcome of relevant court cases, and other information. The Company recognizes potential accrued interest and penalties related to unrecognized tax benefits as income tax expense. As of December 31, 2013, 2012 and 2011, the Company’s total amount of unrecognized tax benefit was approximately $2.4 million, $0.8 million and $0.9 million, respectively. These amounts are primarily related to the Company’s research and development tax credits and tax accruals.
As of December 31, 2013, the Company’s total amount of unrecognized tax benefit was approximately $2.4 million. If recognized, approximately $2.0 million would impact the effective tax rate. The Company does not expect its unrecognized tax benefits to change materially over the next 12 months.
A reconciliation of the beginning and ending balances of unrecognized tax benefits for the year ended December 31, 2013, 2012 and 2011 is as follows (in thousands):
	As of December 31,
	2013			2012			2011
Balance at beginning of year	$	836		$	937		$	675
Increases related to current year tax positions	1,394			218			254
Increases related to prior year tax positions	167			—			8
Reductions related to prior year tax positions	—			(319		)	—
Balance at end of year	$	2,397		$	836		$	937
During the year ended December 31, 2013 and cumulatively, the Company recognized an immaterial amount of interest and penalties associated with unrecognized tax benefits.
The Company files income tax returns with the United States federal government, various states and certain foreign jurisdictions. The Company’s tax years ended December 31, 2002 through December 31, 2013 remain open to audit for federal and California purposes. These years are open due to net operating losses and tax credits unutilized from such years. The Company’s tax years ended December 31, 2008 through December 31, 2013 remain open to audits for its foreign subsidiaries.

EMPLOYEE_SAVINGS_AND_RETIREMEN

EMPLOYEE SAVINGS AND RETIREMENT PLAN	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
EMPLOYEE SAVINGS AND RETIREMENT PLAN	'
	EMPLOYEE SAVINGS AND RETIREMENT PLAN
	The Company sponsors a defined contribution plan under Internal Revenue Service Code 401(k) (the “401(k) Plan”). Most United States employees are eligible to participate following the start of their employment, at the beginning of each calendar month. Employees may contribute up to the lesser of 100% of their current compensation to the 401(k) Plan or an amount up to a statutorily prescribed annual limit. The Company does not match employee contributions to the 401(k) Plan.

SEGEMENT_INFORMATION

SEGEMENT INFORMATION	12 Months Ended
	Dec. 31, 2013
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):
		Years Ended December 31,
		2013		2012		2011
	Americas:
	United States	$	118,333	$	91,597	$	42,551
	Other Americas	12,604		5,135		2,603
	Total Americas	130,937		96,732		45,154
	APAC:
	Japan	17,069		27,462		15,295
	Other APAC	43,048		41,168		26,363
	Total APAC	60,117		68,630		41,658
	EMEA:
	United Kingdom	28,129		20,862		8,018
	Other EMEA	43,884		28,429		25,193
	Total EMEA	72,013		49,291		33,211
	Total revenue	$	263,067	$	214,653	$	120,023
	As of December 31, 2013, the Company has property and equipment, net of $8.0 million, $3.3 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)

12 Months Ended

Dec. 31, 2013

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.

Principles of Consolidation

'

Principles of Consolidation—The consolidated 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 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.

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 carriers 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:

Year Ended December 31,

2013

2012

2011

Distributor A

15.2

%

16.3

%

16.3

%

Distributor B

12.4

%

*

11.4

%

Distributor C

*

12.5

%

12.7

%

*    Less than 10%

The percentage of receivables from individual customers totaling greater than 10% of total consolidated Company accounts receivable were as follows:

December 31,

2013

2012

Distributor A

11.6

%

10.3

%

Distributor D

11.2

%

*

Distributor E

10.4

%

*

*    Less than 10%

Cash and Cash Equivalents

'

Cash and Cash Equivalents—The Company considers all highly liquid financial instruments with original maturities of 90 days or less to be cash equivalents. Cash and cash equivalents are stated at cost, which approximates fair value. The Company’s cash equivalents included interest-bearing bank accounts and money market funds.

Restricted Cash

'

Restricted Cash—As of December 31, 2013, 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”).

Fair Value of Financial Instruments

'

Fair Value of Financial Instruments— The Company defines fair value as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities which are required to be recorded at fair value, the Company considers the principal or most advantageous market in which to transact and the market-based risk. The Company applies fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. The carrying amounts reported in the consolidated financial statements approximate the fair value for cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities, due to their short-term nature.

Short-Term Investments

'

Short-Term Investments—The Company classifies investments as available-for-sale at the time of purchase as these investments are available to fund current operations. Available-for-sale investments are initially recorded at cost and periodically adjusted to fair value in the consolidated balance sheets. Unrealized gains and losses on these investments are reported as a separate component of accumulated other comprehensive income (loss). Realized gains and losses are reported in the consolidated statements of operations. A specific identification method is used to determine the cost basis of the short-term investments sold. The effects of reclassifications from accumulated other comprehensive loss to the income statement were insignificant for the year ended December 31, 2013. The investments are adjusted for the amortization of premiums and discounts until maturity and such amortization is included in interest income (expense).

The Company's short-term investments consist primarily of corporate bonds and commercial paper. As the Company views all investments as available for sale, management has the ability and intent, if necessary, to liquidate any of these investments in order to meet the Company’s liquidity needs within the next 12 months. The Company’s policy is to protect the value of its investment portfolio and minimize principal risk by earning returns based on current interest rates.

Investments are considered impaired when a decline in fair value is judged to be other-than-temporary. The Company consults with its investment managers and considers available quantitative and qualitative evidence in evaluating potential impairment of the investments on a quarterly basis. If the cost of an individual investment exceeds its fair value, the Company evaluates, among other factors, general market conditions, the duration and extent to which the fair value is less than cost, and the Company's intent and ability to hold the investment. Once a decline in fair value is determined to be other-than-temporary, the Company will record an impairment charge and establish a new cost basis in the investment. During the year ended December 31, 2013, the Company did not consider any of its investments to be other-than-temporarily impaired.

Allowance for Doubtful Accounts

'

Allowance for Doubtful Accounts—The Company records an allowance for doubtful accounts based on historical experience and a detailed assessment of the collectability of its accounts receivable. In estimating the allowance for doubtful accounts, management considers, among other factors, the aging of the accounts receivable, historical write-offs, and the credit-worthiness of each customer. If circumstances change, such as higher-than-expected defaults or an unexpected material adverse change in a major customer’s ability to meet its financial obligations, the Company’s estimate of the recoverability of the amounts due could be reduced by a material amount.

Activity in the allowance for doubtful accounts was as follows (in thousands):

Years Ended December 31,

2013

2012

2011

Balance at beginning of year

$

140

$

117

$

66

Charged to expenses

911

179

57

Write-offs

(651

)

(156

)

(6

)

Balance at end of year

$

400

$

140

$

117

Inventories

'

Inventories—Inventories are carried at the lower of cost on a first-in, first-out basis, or market value. The Company evaluates inventory for excess and obsolete products, based on management’s assessment of future demand and market conditions. The Company subcontracts manufacturing of substantially all of its products. At December 31, 2013 and 2012, inventories were predominately comprised of finished goods.

Deferred Costs

'

Deferred Costs—When the Company’s products have been delivered, but the product revenue associated with the arrangement has been deferred as a result of not meeting the revenue recognition criteria (see “Revenue Recognition” below), the related product costs are also deferred if the inventory is deemed recoverable. The deferred costs are recognized in cost of revenues when the related deferred revenue is recognized or when the inventory is deemed unrecoverable.

Property, Plant and Equipment, Net

'

Property and Equipment—Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is calculated using the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful lives of the leasehold improvements or the term of the related lease.

Goodwill

'

Goodwill—Goodwill represents the excess of the purchase price of an acquired business over the fair value of the underlying net tangible and intangible assets. The Company evaluates goodwill for impairment annually in the fourth quarter of the Company’s fiscal year or whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable. Triggering events that may indicate impairment include, but are not limited to, a significant adverse change in customer demand or business climate that could affect the value of goodwill or a significant decrease in expected cash flows. No impairment of goodwill has been identified through December 31, 2013.

Intangible Assets, Net

'

Intangible Assets—Intangible assets consist of existing technology and in-process research and development resulting from acquisitions. The existing technology intangible assets are recorded at fair value and are amortized on a straight-line basis over their estimated useful lives. 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. Upon completion of development, the underlying intangible asset is amortized over its estimated useful life.

Impairment of Long-Lived Assets

'

Impairment of Long-Lived Assets—Management reviews property, equipment and intangible assets for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Determination of recoverability of purchased intangible assets is based on an estimate of undiscounted future cash flows resulting from the use of the asset and its eventual disposition. If property and equipment or intangible assets are considered to be impaired, the impairment to be recognized equals the amount by which the carrying value of the asset exceeds its fair market value. No impairment of property, equipment or intangible assets has been identified through December 31, 2013.

Revenue Recognition

'

Revenue Recognition—The Company generates revenue from the sale of hardware with embedded software and related post contract support (“PCS”) through a direct sales force and indirect relationships with its channel partners.

Revenue is recognized when all of the following criteria are met:

•

Persuasive evidence of an arrangement exists.    The Company relies upon sales contracts and purchase orders to determine the existence of an arrangement.

•

Delivery has occurred.    Delivery is deemed to have occurred when title has transferred. The Company uses shipping documents to verify transfer of title.

•

The fee is fixed or determinable.    The Company assesses whether the fee is fixed or determinable based on the terms associated with the transaction.

•

Collectability is reasonably assured.    The Company assesses collectability based on credit analysis and payment history.

The Company recognizes product revenue at the time of title transfer provided that all other revenue recognition criteria have been met.

Certain distributors that stock the Company’s products are granted stock rotation rights as well as rebates for sales of the Company’s products. If the Company cannot reasonably estimate the impact of stock rotation rights and rebates for specific distributors, the arrangement fee is not fixed and determinable when products are shipped and revenue is deferred until the Company’s products are shipped to the distributor’s customer.

Certain of the Company’s arrangements are multiple-element arrangements which consist of hardware products with embedded software and PCS. The Company’s hardware with the embedded software (which is a proprietary operating system that together with the hardware delivers the functionality desired by the Company’s customers), is considered a separate unit of accounting from PCS as the Company’s customers often buy its hardware products without PCS. For multiple-element arrangements, the Company allocates revenue to each unit of accounting based on an estimated selling price at the inception of the arrangement. The total arrangement consideration is allocated to each separate unit of accounting using the relative estimated selling prices of each unit. The Company limits the amount of revenue recognized for delivered elements to an amount that is not contingent upon future delivery of additional products or service.

To determine the estimated selling price in multiple-element arrangements, the Company first looks to establish vendor specific objective evidence (“VSOE”) of selling price using the prices charged for a deliverable when sold separately. If VSOE of selling price cannot be established for a deliverable, the Company looks to establish third-party evidence (“TPE”) of selling price by evaluating the pricing of similar and interchangeable competitor products or services in standalone arrangements. However, as the Company’s products contain a significant element of proprietary technology and offer substantially different features and functionality from its competitors, the Company is unable to obtain comparable pricing information with respect to its competitors’ products. Therefore, the Company has not been able to obtain reliable evidence of TPE of selling price. If neither VSOE nor TPE of selling price can be established for a deliverable, the Company establishes best estimated selling price (“BESP”) by reviewing historical transaction information and considering several other internal factors including discounting and margin objectives.

The Company makes certain estimates and maintains allowances for sales returns, stock rotation, and other programs based on its historical experience. To date, these estimates have not been significant.

The Company recognizes services revenue from PCS ratably over the contractual service period, which is typically one to five years. Other services revenue is recognized as the services are rendered and has not been significant to date.

Revenues are reported net of sales taxes. Shipping charges billed to partners are included in revenues and related costs are included in cost of revenue. To date, shipping charges have not been significant.

Research and Development Costs

'

Software Development Costs—Based on the Company product development process, technological feasibility is established upon completion of the working model. To date, costs incurred by the Company between the completion of a working model and the point at which the product is ready for general release have been insignificant. Accordingly, the Company has charged all such costs to research and development expense in the period incurred.

Share-based Compensation

'

Stock-Based Compensation—The Company measures compensation expense for all stock-based payment awards granted to employees, including stock options, restricted stock units (“RSUs”) and purchases under the Company's Employee Stock Purchase Plan (“ESPP”), based on the estimated fair value 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 common 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 nonemployees based on the fair value of the awards determined using the Black-Scholes option pricing model. The fair value of stock options granted to nonemployees is re-measured as the stock options vest, and the resulting change in fair value, if any, is recognized in the Company’s consolidated statement of operations during the period the related services are rendered.

Foreign Currency

'

Foreign Currency—The functional currency of the Company’s foreign subsidiaries is the U.S. dollar. Monetary assets and liabilities are re-measured using the current exchange rate at the balance sheet date. Non-monetary assets and liabilities and capital accounts are re-measured using historical exchange rates. Revenues and expenses are re-measured using the average exchange rates in effect during the period. Foreign currency re-measurement gains and losses have not been material for any periods presented.

Income Tax

'

Income Taxes—The Company utilizes the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are determined based on the differences between financial reporting and tax reporting bases of assets and liabilities, and are measured using enacted tax rates and laws that are expected to be in effect when the differences are expected to reverse. Valuation allowances are provided when necessary to reduce deferred tax assets to the amount expected to be realized. Significant management judgment is required in determining the period in which the reversal of a valuation allowance should occur. The Company is required to consider all available evidence, both positive and negative, such as historical levels of income and future forecasts of taxable income amongst other items, in determining whether a full or partial release of its valuation allowance is required. The Company is also required to forecast future taxable income in accordance with accounting standards that address income taxes to assess the appropriateness of a valuation allowance, which further requires the exercise of significant management judgment.

The Company records uncertain tax positions in accordance with accounting standards on the basis of a two-step process whereby (1) a determination is made as to whether it is more likely than not that the tax positions will be sustained based on the technical merits of the position and (2) for those tax positions that meet the more-likely-than-not recognition threshold the Company recognizes the largest amount of tax benefit that is greater than 50% likely to be realized upon ultimate settlement with the related tax authority.

Loss Contingencies

'

Loss Contingencies— The Company is subject to the possibility of various loss contingencies arising in the ordinary course of business. The Company considers the likelihood of loss or impairment of an asset, or the incurrence of a liability, as well as the Company's ability to reasonably estimate the amount of loss, in determining loss contingencies. An estimated loss contingency is accrued when it is probable that an asset has been impaired or a liability has been incurred and the amount of loss can be reasonably estimated. If the Company determines that a loss is possible and the range of the loss can be reasonably determined, then the Company discloses the range of the possible loss. The Company regularly evaluates available current information available to determine whether an accrual is required, an accrual should be adjusted or a range of possible loss should be disclosed.

Comprehensive Income (Loss)

'

In June 2011, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update 2011-05, Presentation of Comprehensive Income. The standard requires entities to have more detailed reporting of comprehensive income. Specifically, the standard allows an entity to present components of net income and components of other comprehensive income in one continuous statement of comprehensive income, or in two separate, but consecutive statements. The guidance became effective for the Company in the first quarter of 2013 and applied retrospectively. The Company's adoption of this guidance did not have a material impact on its consolidated financial position, results of operations, or cash flows.

In February 2013, the FASB issued Accounting Standards Update 2013-02, Comprehensive Income (Topic 220)-Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. The standard requires entities to present (either on the face of the income statement or in the notes) the effects on significant reclassifications of line items of the income statement out of accumulated other comprehensive income. The guidance became effective for the Company in the first quarter of 2013. The Company's adoption of this guidance did not have a material impact on its consolidated financial position, results of operations, or cash flows.

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 will become effective for the Company in the first quarter of 2014 and should be applied prospectively. Early adoption is permitted. The Company does not expect that the adoption of this guidance will have a material impact on its consolidated financial position, results of operations, or cash flows.

DESCRIPTION_OF_BUSINESS_AND_SU2

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2013
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:
		Year Ended December 31,
		2013			2012			2011
	Distributor A	15.2	%		16.3	%		16.3	%
	Distributor B	12.4	%		*			11.4	%
	Distributor C	*			12.5	%		12.7	%
	*    Less than 10%
	The percentage of receivables from individual customers totaling greater than 10% of total consolidated Company accounts receivable were as follows:
		December 31,
		2013			2012
	Distributor A	11.6	%		10.3	%
	Distributor D	11.2	%		*
	Distributor E	10.4	%		*
	*    Less than 10%
Allowance for doubtful accounts	'
	Activity in the allowance for doubtful accounts was as follows (in thousands):
		Years Ended December 31,
		2013				2012				2011
	Balance at beginning of year	$	140			$	117			$	66
	Charged to expenses	911				179				57
	Write-offs	(651		)		(156		)		(6		)
	Balance at end of year	$	400			$	140			$	117

FAIR_VALUE_DISCLOSURE_Tables

FAIR VALUE DISCLOSURE (Tables)	12 Months Ended
	Dec. 31, 2013
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 are as follows (in thousands):
		31-Dec-13
		Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	47,773	$	47,773	$	—	$	—
	Short-term investment:
	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	$	—
		31-Dec-12
		Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds	$	109,020	$	109,020	$	—	$	—

INVESTMENTS_Tables

INVESTMENTS (Tables)	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Schedule of available-for-sale investments	'
	Investments consist of the following (in thousands):
		December 31, 2013
		Amortized Cost		Unrealized Gains			Unrealized Losses			Fair Value
	Corporate bonds	$	47,294	$	9		$	(13	)	$	47,290
	Commercial paper	13,588		—			—			13,588
	Total	$	60,882	$	9		$	(13	)	$	60,878
Schedule of available-for-sale investments in unrealized loss position	'
	Investments in an unrealized loss position at December 31, 2013 consist of the following (in thousands):
		Less Than 12 Months
		Fair Value		Unrealized Loss
	Corporate bonds	$	18,204	$	(13	)

BUSINESS_COMBINATIONS_Tables

BUSINESS COMBINATIONS (Tables)	12 Months Ended
	Dec. 31, 2013
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
Schedule of purchase consideration	'
	The total purchase consideration was approximately $15.6 million and consisted of the following (in thousands):
		Fair Value
	Cash consideration paid at closing	$	6,000
	Common stock issued at closing (1.4 million shares)	3,031
	Holdback based on standard representations and warranties	4,000
	Contingent consideration ($3.0 million gross, net of $0.4 million discount)	2,600
	Total consideration	$	15,631
Schedule of acquired intangible assets	'
	The following table summarizes the estimated purchase allocation (in thousands, except estimated useful lives):
		Fair Value			Estimated
					Useful
					Lives
	Purchased technology	$	6,600		5 years
	Goodwill	9,031
	Total	$	15,631

GOODWILL_AND_INTANGIBLES_ASSET1

GOODWILL AND INTANGIBLES ASSETS (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of goodwill	'
	Goodwill consisted of the following (in thousands):
			Amount
	31-Dec-11		$	9,031
	31-Dec-12		$	9,031
	Goodwill from the acquisition of YFind		914
	31-Dec-13		$	9,945
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
	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
	December 31, 2012:
	Purchased technology	$	6,600		$	(1,609	)	$	4,991	3.8 years
Estimated future amortization of purchased intangible assets	'
	Estimated future amortization of intangible assets with finite lives at December 31, 2013, was as follows (in thousands):
	Year ending December 31,	Amount
	2014	$	1,320
	2015	1,320
	2016	1,031
	Total amortization	$	3,671

PROPERTY_AND_EQUIPMENT_Tables

PROPERTY AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Schedule of property and equipment	'
	Property and equipment consisted of the following (in thousands, except estimated useful lives):
		Estimated Useful Lives	31-Dec
			2013			2012
	Computer hardware	3 years	$	7,451		$	3,413
	Computer software	3 years	2,396			2,075
	Machinery, equipment, and tooling	2 to 3 years	8,718			6,818
	Furniture and fixtures	7 years	1,572			1,427
	Leasehold improvements	10 years	2,981			2,270
	Total property and equipment		23,118			16,003
	Less: accumulated depreciation and amortization		(11,646		)	(7,044		)
	Total property and equipment, net		$	11,472		$	8,959

DEFERRED_REVENUE_Tables

DEFERRED REVENUE (Tables)	12 Months Ended
	Dec. 31, 2013
Deferred Revenue Disclosure [Abstract]	'
Schedule of deferred revenue	'
	Deferred revenue consisted of the following (in thousands):
		December 31,
		2013		2012
	Product	$	21,732	$	27,831
	Service	18,505		12,655
	Total deferred revenue	$	40,237	$	40,486
	Reported as:
	Current	$	33,139	$	36,613
	Non-current	7,098		3,873
	Total deferred revenue	$	40,237	$	40,486

COMMITMENTS_AND_CONTINGENCIES_

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of future minimum lease payments under non-cancellable operating leases	'
	Future minimum lease payments under non-cancellable operating leases are as follows (in thousands):
	Years ending December 31,	Amount
	2014	$	3,906
	2015	3,059
	2016	2,353
	2017	2,285
	2018	2,353
	Thereafter	9,913
	Operating lease obligation	$	23,869
Schedule of changes in warranty liability	'
	The warranty liability is included as a component of accrued liabilities in the accompanying consolidated balance sheets. Changes in the warranty liability are as follows (in thousands):
		Years Ended December 31,
		2013			2012			2011
	Balance at beginning of year	$	725		$	489		$	605
	Changes in existing warranty	(41		)	47			(74		)
	Warranty expense	1,528			784			657
	Obligations fulfilled	(1,174		)	(595		)	(699		)
	Balance at end of year	$	1,038		$	725		$	489

EQUITY_AWARD_PLAN_Tables

EQUITY AWARD PLAN (Tables)	12 Months Ended
	Dec. 31, 2013
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, 2012	24,400		$	2.82			7.7		$	480,878
	Options granted	1,802		16.76
	Options exercised	-5,903		1.23
	Options forfeited	-690		4.98
	Balance, December 31, 2013	19,609		$	4.51			7.3		$	195,142
	Options exercisable as of December 31, 2013	10,715		$	2.45			6.5		$	126,357
	Options vested and expected to vest as of December 31, 2013	18,972		$	4.38			7.3		$	190,960
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, 2012	—			$	—			—			$	—
	RSUs granted	1,058			17.1
	RSUs vested	—			—
	RSUs forfeited	(47	)		16.99
	Balance, December 31, 2013	1,011			$	17.11			1.61			$	14,356
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 December 31, 2013 (in thousands):
		Number of
		Shares
	Balance, December 31, 2012	6,961
	Additional shares reserved for issuance	3,708
	RSUs granted	(1,058	)
	RSUs forfeited	47
	Options granted	(1,802	)
	Options forfeited	690
	Options repurchased	1
	Balance, December 31, 2013	8,547
Summary of stock options, valuation assumptions	'
	The following table summarizes the weighted average assumptions relating to the Company's stock options:
		Years Ended December 31,
		2013			2012			2011
	Volatility	67.4	%		69.1	%		69.5	%
	Expected term (years)	6.07			6.03			6.12
	Risk-free interest rate	1.87	%		0.98	%		1.75	%
	Dividend yield	—			—			—
Summary of Employee Stock Purchase Plan, valuation assumptions	'
	The following table summarizes the weighted average assumptions relating to the Company's ESPP:
		Years Ended December 31,
		2013			2012
	Volatility	59.6	%		70	%
	Expected term (years)	0.7			0.7
	Risk-free interest rate	0.1	%		0.2	%
	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):
		Years Ended December 31,
		2013				2012				2011
	Cost of revenue	$	818			$	243			$	148
	Research and development	6,738				2,409				1,055
	Sales and marketing	4,922				1,787				471
	General and administrative	6,637				4,012				594
	Total stock-based compensation	19,115				8,451				2,268
	Tax benefit from stock-based compensation	(1,535		)		(2,417		)		—
	Total stock-based compensation, net of tax effect	$	17,580			$	6,034			$	2,268
Stock-based compensation expense by award-type	'
	The following table presents stock-based compensation expense by award-type (in thousands):
		Years Ended December 31,
		2013				2012				2011
	Stock options	$	13,381			$	8,286			$	2,268
	RSUs	3,489				—				—
	ESPP	2,245				165				—
	Total stock-based compensation	19,115				8,451				2,268
	Tax benefit from stock-based compensation	(1,535		)		(2,417		)		—
	Total stock-based compensation, net of tax effect	$	17,580			$	6,034			$	2,268

EARNINGS_PER_SHARE_Tables

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2013
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):
		Years Ended December 31,
		2013			2012			2011
	Numerator:
	Net income	$	1,789		$	31,704		$	4,186
	Less: Undistributed earnings allocated to participating securities	—			(22,668		)	(3,807		)
	Net income attributable to common stockholders, basic and diluted	$	1,789		$	9,036		$	379
	Denominator:
	Weighted-average shares used in computing net income per share attributable to common stockholders:
	Basic	76,744			24,847			15,584
	Weighted-average effect of potentially dilutive shares:
	Employee stock options	16,442			12,788			7,451
	RSUs and other dilutive securities	175			140			234
	Diluted	93,361			37,775			23,269
	Net income per share of common stock:
	Basic	$	0.02		$	0.36		$	0.02
	Diluted	$	0.02		$	0.24		$	0.02
Summary of the outstanding redeemable convertible preferred stock, employee stock, employee stock options, RSUs and warrants excluded from the diluted per share calculation	'
	The following table summarizes the weighted average outstanding stock awards and redeemable convertible preferred stock that were excluded from the diluted per share calculation because to include them would have been anti-dilutive for the period (in thousands):
		Years Ended December 31,
		2013		2012			2011
	Stock options	1,134		3,348			2,544
	RSUs	233		—			—
	Redeemable convertible preferred stock	—		—			43,285
	Total	1,367		3,348			45,829

INCOME_TAXES_Tables

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of domestic and foreign components of income (loss) before provision for income taxes	'
	The domestic and foreign components of income (loss) before the provision for income taxes for the years ended December 31, 2013, 2012 and 2011 were as follows (in thousands):
		Years Ended December 31,
		2013			2012			2011
	Domestic	$	(1,015	)	$	13,235		$	4,149
	Foreign	905			1,231			352
	Total	$	(110	)	$	14,466		$	4,501
Schedule of provision (benefit) for income taxes	'
	During the years ended December 31, 2013, 2012 and 2011, the Company’s income tax expense (benefit) was as follows (in thousands):
		Years Ended December 31,
		2013			2012			2011
	Current expense:
	Federal	$	1,880		$	—		$	—
	State	143			317			65
	Foreign	1,006			762			213
	Total current expense	3,029			1,079			278
	Deferred expense (benefit):
	Federal	(3,445		)	(13,805		)	36
	State	(1,172		)	(4,467		)	1
	Foreign	(311		)	(45		)	—
	Total deferred expense (benefit)	(4,928		)	(18,317		)	37
	Total income tax expense (benefit)	$	(1,899	)	$	(17,238	)	$	315
Schedule of effective income tax rate reconciliation	'
	The difference between the income tax expense (benefit) and the amount computed by applying the statutory federal income tax rate to the income (loss) before income taxes is as follows (in thousands):
		Years Ended December 31,
		2013			2012			2011
	Federal statutory rate	$	(38	)	$	4,918		$	1,530
	State taxes, net of federal income tax benefit	86			417			43
	Non-deductible expenses	209			134			74
	Stock-based compensation	1,535			701			214
	Preferred stock warrant liability	—			966			295
	Acquisition cost	110			—			—
	Foreign tax deduction	(101		)	—			—
	Tax credits	(4,020		)	(884		)	(589		)
	Foreign tax rate differential	324			273			47
	Other items not individually material	(4		)	116			50
	Change in statutory rate	—			(262		)	—
	Change in valuation allowance	—			(23,617		)	(1,349		)
	Total income tax expense (benefit)	$	(1,899	)	$	(17,238	)	$	315
Schedule of components of deferred tax assets and liabilities	'
	Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands):
		As of December 31,
		2013			2012
	Deferred tax assets:
	Accruals and reserves	$	1,641		$	3,308
	Tax credits	6,719			4,700
	Fixed assets and intangibles, other than goodwill	3,402			2,208
	Net operating losses	1,645			3,490
	Stock-based compensation	7,131			3,386
	Deferred revenue	1,448			1,532
	Other	1,517			—
	Total deferred tax assets	23,503			18,624
	Deferred tax liabilities
	Intangible assets	(1,020		)	—
	Goodwill	(305		)	(355		)
	Net deferred tax assets	$	22,178		$	18,269
	As reported:
	Current deferred tax asset	$	7,715		$	9,055
	Non-current deferred tax assets	15,317			9,214
	Non-current deferred tax liabilities	(854		)	—
	Net deferred tax assets	$	22,178		$	18,269
Schedule of unrecognized tax benefits roll forward	'
	A reconciliation of the beginning and ending balances of unrecognized tax benefits for the year ended December 31, 2013, 2012 and 2011 is as follows (in thousands):
		As of December 31,
		2013			2012			2011
	Balance at beginning of year	$	836		$	937		$	675
	Increases related to current year tax positions	1,394			218			254
	Increases related to prior year tax positions	167			—			8
	Reductions related to prior year tax positions	—			(319		)	—
	Balance at end of year	$	2,397		$	836		$	937

SEGEMENT_INFORMATION_Tables

SEGEMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Schedule of total revenue by geographic region	'
	The following presents total revenue by geographic region (in thousands):
		Years Ended December 31,
		2013		2012		2011
	Americas:
	United States	$	118,333	$	91,597	$	42,551
	Other Americas	12,604		5,135		2,603
	Total Americas	130,937		96,732		45,154
	APAC:
	Japan	17,069		27,462		15,295
	Other APAC	43,048		41,168		26,363
	Total APAC	60,117		68,630		41,658
	EMEA:
	United Kingdom	28,129		20,862		8,018
	Other EMEA	43,884		28,429		25,193
	Total EMEA	72,013		49,291		33,211
	Total revenue	$	263,067	$	214,653	$	120,023

DESCRIPTION_OF_BUSINESS_AND_SU3

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Concentration of Credit Risk and Significant Customers) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues | Distributor A	'	'	'
Revenue, Major Customer	'	'	'
Significant customer, as a percentage	15.20%	16.30%	16.30%
Revenues | Distributor B	'	'	'
Revenue, Major Customer	'	'	'
Significant customer, as a percentage	12.40%	'	11.40%
Revenues | Distributor C	'	'	'
Revenue, Major Customer	'	'	'
Significant customer, as a percentage	'	12.50%	12.70%
Accounts Receivables | Distributor A	'	'	'
Revenue, Major Customer	'	'	'
Significant customer, as a percentage	11.60%	10.30%	'
Accounts Receivables | Distributor D	'	'	'
Revenue, Major Customer	'	'	'
Significant customer, as a percentage	11.20%	'	'
Accounts Receivables | Distributor E	'	'	'
Revenue, Major Customer	'	'	'
Significant customer, as a percentage	10.40%	'	'

DESCRIPTION_OF_BUSINESS_AND_SU4

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Allowance for Doubtful Accounts) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts Receivable [Roll Forward]	'	'	'
Balance at beginning of the year	$140	$117	$66
Provision for doubtful accounts	911	179	57
Write-offs	-651	-156	-6
Balance at end of the year	$400	$140	$117

DESCRIPTION_OF_BUSINESS_AND_SU5

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Additional Information) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'	'
Restricted cash	$5,000,000	$0
Goodwill impairment	$0	'

FAIR_VALUE_DISCLOSURE_Details

FAIR VALUE DISCLOSURE (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
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	$108,651	'
Fair Value | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale securities at fair value	47,290	'
Fair Value | Commercial paper	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale securities at fair value	13,588	'
Fair Value | Money Market Funds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Money market funds, at fair value	47,773	109,020
Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Total assets measured and recorded at fair value	47,773	'
Level 1 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale securities at fair value	0	'
Level 1 | Commercial paper	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale securities at fair value	0	'
Level 1 | Money Market Funds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Money market funds, at fair value	47,773	109,020
Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Total assets measured and recorded at fair value	60,878	'
Level 2 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale securities at fair value	47,290	'
Level 2 | Commercial paper	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale securities at fair value	13,588	'
Level 2 | Money Market Funds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Money market funds, at fair value	0	0
Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Total assets measured and recorded at fair value	0	'
Level 3 | Corporate bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale securities at fair value	0	'
Level 3 | Commercial paper	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale securities at fair value	0	'
Level 3 | Money Market Funds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Money market funds, at fair value	$0	$0

INVESTMENTS_Details

INVESTMENTS (Details) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities	'
Amortized Cost	$60,882
Unrealized Gains	9
Unrealized Losses	-13
Fair Value	60,878
Corporate bonds	'
Schedule of Available-for-sale Securities	'
Amortized Cost	47,294
Unrealized Gains	9
Unrealized Losses	-13
Fair Value	47,290
Commercial paper	'
Schedule of Available-for-sale Securities	'
Amortized Cost	13,588
Unrealized Gains	0
Unrealized Losses	0
Fair Value	$13,588

INVESTMENTS_Continuous_Unreali

INVESTMENTS (Continuous Unrealized Losses) (Details) (Corporate bonds, USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Corporate bonds	'
Schedule of Available-for-sale Securities	'
Less than 12 months, Fair Value	$18,204
Less than 12 months, Unrealized Loss	($13)

BUSINESS_COMBINATIONS_Details

BUSINESS COMBINATIONS (Details) (USD $)	12 Months Ended			0 Months Ended	12 Months Ended	0 Months Ended				3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jul. 18, 2013	Dec. 31, 2013	Jul. 18, 2013	Jul. 18, 2013	Jul. 18, 2013	Oct. 12, 2011	Dec. 31, 2012	Dec. 31, 2012
				YFind	YFind	YFind	YFind	YFind	IntelliNet	IntelliNet	IntelliNet
						Minimum	Maximum	RSU
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Awards granted (in shares)	'	'	'	'	'	'	'	219,782	'	'	'
Options granted (in shares)	1,802,000	'	'	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	'	'	'	'	1,000,000	'	'	'	'	'	'
Acquisition-related costs	'	'	'	200,000	'	'	'	'	'	'	'
Purchase Allocation	'	'	'	'	'	'	'	'	'	'	'
Cash and cash equivalents	'	'	'	257,000	'	'	'	'	'	'	'
Other tangible assets	'	'	'	8,000	'	'	'	'	'	'	'
Purchased technology	'	'	'	'	'	'	'	'	6,600,000	'	'
Estimated useful life of purchased technology	'	'	'	'	'	'	'	'	'5 years	'	'
In-process research and development	'	'	'	6,000,000	'	'	'	'	'	'	'
Goodwill	9,945,000	9,031,000	9,031,000	914,000	'	'	'	'	9,031,000	'	'
Noncurrent deferred tax liabilities	'	'	'	-1,020,000	'	'	'	'	'	'	'
Other liabilities assumed	'	'	'	-21,000	'	'	'	'	'	'	'
Total purchase allocation	'	'	'	6,138,000	'	'	'	'	15,631,000	'	'
Total Purchase Price Breakdown	'	'	'	'	'	'	'	'	'	'	'
Cash consideration paid at closing	'	'	'	6,138,000	'	'	'	'	6,000,000	'	'
Common stock issued at closing	'	'	'	'	'	'	'	'	3,031,000	'	'
Liabilities related to acquisitions	0	2,000,000	'	'	'	'	'	'	4,000,000	'	'
Contingent consideration liability	'	'	'	'	'	'	'	'	2,600,000	'	'
Total consideration	'	'	'	'	'	'	'	'	15,631,000	'	'
Common stock issued at closing, in shares	'	'	'	'	'	'	'	'	1,400,000	'	'
Increase in contingent consideration	'	'	'	'	'	'	'	'	'	'	400,000
Settlement of contingent liability	0	400,000	0	'	'	'	'	'	'	3,000,000	'
Holdback payments made every six months	'	'	'	'	'	'	'	'	$1,000,000	'	'
Holdback payment term	'	'	'	'	'	'	'	'	'2 years	'	'

GOODWILL_AND_INTANGIBLES_ASSET2

GOODWILL AND INTANGIBLES ASSETS (Details) (USD $)

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jul. 18, 2013

Oct. 12, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Oct. 12, 2011

Dec. 31, 2013

Jul. 18, 2013

YFind

IntelliNet

Purchased Technology

Purchased Technology

Purchased Technology

Purchased Technology

Purchased Technology

In-process research and development

In-process research and development

IntelliNet

IntelliNet

IntelliNet

YFind

Goodwill [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

Beginning balance

$9,031,000

'

$9,031,000

$914,000

$9,031,000

'

'

'

'

'

'

'

Goodwill from the acquisition

914,000

'

'

'

'

'

'

'

'

'

'

'

Ending balance

9,945,000

'

9,031,000

914,000

9,031,000

'

'

'

'

'

'

'

Gross Carrying Amount

'

'

'

'

'

6,600,000

6,600,000

'

'

'

'

'

Accumulated amortization

-2,929,000

'

'

'

'

-2,929,000

-1,609,000

'

'

'

'

'

Finite-lived intangible assets, net

3,671,000

'

'

'

'

3,671,000

4,991,000

'

'

'

'

'

Indefinite-lived intangible assets

'

'

'

'

'

'

'

'

'

'

6,000,000

6,000,000

Intangible Assets, Gross

12,600,000

'

'

'

'

'

'

'

'

'

'

'

Intangible assets, net

9,671,000

4,991,000

'

'

'

'

'

'

'

'

'

'

Weighted average remaining useful life

'

'

'

'

'

'2 years 9 months

'3 years 10 months

'

'

'

'

'

Fair value of purchased technology

'

'

'

'

6,600,000

'

'

'

'

6,600,000

'

'

Amortization expense

'

'

'

'

'

'

'

$1,300,000

$1,300,000

'

'

'

GOODWILL_AND_INTANGIBLES_ASSET3

GOODWILL AND INTANGIBLES ASSETS (Future Amortization Expense) (Details) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Estimated Future Amortization Expense By Fiscal Year Maturity	'
2014	$1,320
2015	1,320
2016	1,031
Finite-lived intangible assets, net	$3,671

PROPERTY_AND_EQUIPMENT_Details

PROPERTY AND EQUIPMENT (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property and Equipment	'	'
Property and equipment, gross	$23,118	$16,003
Less: accumulated depreciation and amortization	-11,646	-7,044
Property and equipment, net	11,472	8,959
Computer hardware	'	'
Property and Equipment	'	'
Property and equipment, gross	7,451	3,413
Computer software	'	'
Property and Equipment	'	'
Property and equipment, gross	2,396	2,075
Machinery, equipment, and tooling	'	'
Property and Equipment	'	'
Property and equipment, gross	8,718	6,818
Furniture and fixtures	'	'
Property and Equipment	'	'
Property and equipment, gross	1,572	1,427
Leasehold improvements	'	'
Property and Equipment	'	'
Property and equipment, gross	$2,981	$2,270

PROPERTY_AND_EQUIPMENT_Useful_

PROPERTY AND EQUIPMENT (Useful Lives and Depreciation) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property and Equipment	'	'	'
Depreciation and amortization of property and equipments	$5.30	$3.50	$1.80
Computer hardware	'	'	'
Property and Equipment	'	'	'
Estimated useful lives	'3 years	'	'
Computer software	'	'	'
Property and Equipment	'	'	'
Estimated useful lives	'3 years	'	'
Machinery, equipment, and tooling | Minimum	'	'	'
Property and Equipment	'	'	'
Estimated useful lives	'2 years	'	'
Machinery, equipment, and tooling | Maximum	'	'	'
Property and Equipment	'	'	'
Estimated useful lives	'3 years	'	'
Furniture and fixtures	'	'	'
Property and Equipment	'	'	'
Estimated useful lives	'7 years	'	'
Leasehold improvements	'	'	'
Property and Equipment	'	'	'
Estimated useful lives	'10 years	'	'

DEFERRED_REVENUE_Details

DEFERRED REVENUE (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Deferred Revenue Arrangement [Line Items]	'	'
Deferred revenue	$40,237,000	$40,486,000
Current	33,139,000	36,613,000
Noncurrent	7,098,000	3,873,000
Product	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Deferred revenue	21,732,000	27,831,000
Product | Future Product Rights	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Deferred revenue	'	5,200,000
Deferred revenue recognized	5,200,000	'
Services	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Deferred revenue	$18,505,000	$12,655,000
Services | Minimum	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Typical service support period, minimum	'1 year	'
Services | Maximum	'	'
Deferred Revenue Arrangement [Line Items]	'	'
Typical service support period, minimum	'5 years	'

COMMITMENTS_AND_CONTINGENCIES_1

COMMITMENTS AND CONTINGENCIES (Operating Leases and Purchase Commitments) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments and Contingencies Disclosure [Abstract]	'	'	'
Rent expense	$4,400,000	$2,900,000	$1,100,000
Operating Leases, Future Minimum Payments [Abstract]	'	'	'
2014	3,906,000	'	'
2015	3,059,000	'	'
2016	2,353,000	'	'
2017	2,285,000	'	'
2018	2,353,000	'	'
Thereafter	9,913,000	'	'
Operating lease obligation	23,869,000	'	'
Current purchase commitments	$8,100,000	'	'

COMMITMENTS_AND_CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES (Warranty Liabilities) (Details) (USD $)	12 Months Ended				1 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Apr. 30, 2013
				Hardware other than Indoor WLAN Products	Indemnification Agreement [Member]
Product Liability	'	'	'	'	'
Restricted cash for indemnity obligation	$5,000	$0	'	'	'
Indemnification Period	'	'	'	'	'6 years
Warranty	'	'	'	'	'
Standard product warranty term	'	'	'	'1 year	'
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]	'	'	'	'	'
Beginning warranty liability	725	489	605	'	'
Changes in existing warranty	-41	47	-74	'	'
Warranty expense	1,528	784	657	'	'
Obligations fulfilled	-1,174	-595	-699	'	'
Ending warranty liability	$1,038	$725	$489	'	'

EQUITY_AWARD_PLAN_Stock_Option

EQUITY AWARD PLAN (Stock Option Activity) (Details) (USD $)	12 Months Ended
Share data in Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Number of Shares	'	'	'
Beginning balance (shares)	24,400	'	'
Options granted (shares)	1,802	'	'
Options exercised (shares)	-5,903	'	'
Options forfeited (shares)	-690	'	'
Ending balance (shares)	19,609	24,400	'
Options exercisable (shares)	10,715	'	'
Options vested and expected to vest (shares)	18,972	'	'
Weighted Average Exercise Price	'	'	'
Beginning balance (in dollars per share)	$2.82	'	'
Options granted (in dollars per share)	$16.76	'	'
Options exercised (in dollars per share)	$1.23	'	'
Options forfeited (in dollars per share)	$4.98	'	'
Ending balance (in dollars per share)	$4.51	$2.82	'
Options exercisable (in dollars per share)	$2.45	'	'
Options vested and expected to vest (in dollars per share)	$4.38	'	'
Weighted Average Remaining Contractual Life	'	'	'
Weighted Average Remaining Contractual Life	'7 years 3 months 18 days	'7 years 8 months 12 days	'
Options exercisable	'6 years 6 months	'	'
Options vested and expected to vest	'7 years 3 months 18 days	'	'
Aggregate Intrinsic Value	'	'	'
Aggregate Intrinsic Value	$195,142,000	$480,878,000	'
Options exercisable	126,357,000	'	'
Options vested and expected to vest	190,960,000	'	'
Weighted average grant date fair value (in dollars per share)	$10.33	$3.91	$1.24
Total intrinsic value of options exercised	$74,100,000	$4,800,000	$3,500,000

EQUITY_AWARD_PLAN_Restricted_S

EQUITY AWARD PLAN (Restricted Stock Units Activity) (Details) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Number of Shares	'	'
RSUs granted (shares)	1,058	'
RSU	'	'
Number of Shares	'	'
Beginning balance (shares)	0	'
RSUs granted (shares)	1,058	'
RSUs exercised (shares)	0	'
RSUs forfeited (shares)	-47	'
Ending balance (shares)	1,011	'
Weighted-Average Grant- Date Fair Value Per Share	'	'
Beginning balance (in dollars per share)	$0	'
RSUs granted (in dollars per share)	$17.10	'
RSUs vested (in dollars per share)	$0	'
RSUs forfeited (in dollars per share)	$16.99	'
Ending balance (in dollars per share)	$17.11	'
RSU, Weighted Average Remaining Contractual Life	'1 year 7 months 10 days	'
Aggregate Intrinsic Value	'	'
Aggregate Intrinsic Value	$14,356	$0

EQUITY_AWARD_PLAN_Stock_Activi

EQUITY AWARD PLAN (Stock Activity and Number of Shares Available for Grant) (Details)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Shares Available for Grant	'
Beginning balance (shares)	6,961
Additional shares reserved for issuance (shares)	3,708
RSUs granted (shares)	-1,058
RSUs forfeited (shares)	47
Options granted (shares)	-1,802
Options forfeited (shares)	690
Options repurchased (shares)	1
Ending balance (shares)	8,547

EQUITY_AWARD_PLAN_Assumptions_

EQUITY AWARD PLAN (Assumptions) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Options	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'	'
Volatility	67.40%	69.10%	69.50%
Expected term (years)	'6 years 0 months 26 days	'6 years 0 months 11 days	'6 years 1 month 13 days
Risk-free interest rate	1.87%	0.98%	1.75%
Dividend yield	0.00%	0.00%	0.00%
ESPP	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'	'
Volatility	59.60%	70.00%	'
Expected term (years)	'8 months 12 days	'8 months 12 days	'
Risk-free interest rate	0.10%	0.20%	'
Dividend yield	0.00%	0.00%	'

EQUITY_AWARD_PLAN_Stockbased_C

EQUITY AWARD PLAN (Stock-based Compensation Expense) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Total stock-based compensation	$19,115,000	$8,451,000	$2,268,000
Tax benefit from stock-based compensation	-1,535,000	-2,417,000	0
Total stock-based compensation, net of tax effect	17,580,000	6,034,000	2,268,000
Compensation cost not yet recognized	48,100,000	'	'
Compensation cost not yet recognized, period for recognition	'2 years 4 months	'	'
YFind	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Stock-based compensation related to the cash settlement of equity awards	400,000	'	'
Stock Options	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Total stock-based compensation	13,381,000	8,286,000	2,268,000
RSUs	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Total stock-based compensation	3,489,000	0	0
ESPP	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Total stock-based compensation	2,245,000	165,000	0
Cost of revenue	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Total stock-based compensation	818,000	243,000	148,000
Research and development	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Total stock-based compensation	6,738,000	2,409,000	1,055,000
Sales and marketing	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Total stock-based compensation	4,922,000	1,787,000	471,000
General and administrative	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs	'	'	'
Total stock-based compensation	$6,637,000	$4,012,000	$594,000

EQUITY_AWARD_PLAN_Additional_I

EQUITY AWARD PLAN (Additional Information) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award	'	'
Number of equity incentive plans	2	'
2012 Plan	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'
Expiration period	'10 years	'
Number of shares authorized under plan	32,000,000	'
Increase in number of shares reserved for issuance on the first day of fiscal year, as a percentage of shares of common stock on the last day of preceding fiscal year	5.00%	'
Shares reserved for future issuance	29,200,000	31,400,000
2012 Plan | Minimum	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'
Vesting period for equity awards	'2 years	'
2012 Plan | Maximum	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'
Vesting period for equity awards	'4 years	'
ESPP	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'
Number of shares authorized under plan	2,600,000	1,500,000
Shares reserved for future issuance	1,500,000	'
Offering period	'1 year	'
Purchase period	'6 months	'
Maximum percent of employee salary that can purchase stock	15.00%	'
Purchase price of common stock, as a percent	85.00%	'
Maximum value of stock purchased per employee	25,000	'
Maximum number of shares purchased by each employee	2,000	'
Average exercise price	11.2	'
ESPP | Scenario (i) ESPP shares reserved for issuance	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'
Increase in number of shares reserved for issuance on the first day of fiscal year, as a percentage of shares of common stock on the last day of preceding fiscal year	2.00%	'
ESPP | Scenario (ii) ESPP shares reserved for issuance	'	'
Share-based Compensation Arrangement by Share-based Payment Award	'	'
Shares reserved for future issuance	3,000,000	'

COMMON_STOCK_WARRANTS_Details

COMMON STOCK WARRANTS (Details) (Warrant)	12 Months Ended
	Dec. 31, 2013
Warrant	'
Class of Warrant or Right	'
Common stock warrants exercised	295,748
Common stock issued from exercise of warrants	278,021
Warrants outstanding	0

EARNINGS_PER_SHARE_Preferred_S

EARNINGS PER SHARE (Preferred Stock Dividends) (Details) (USD $)	0 Months Ended
	Nov. 15, 2012
Series A-1 Preferred Stock	'
Class of Stock	'
Non-cumulative annual dividend rate, per share	$0.01
Series B Preferred Stock	'
Class of Stock	'
Non-cumulative annual dividend rate, per share	$0.03
Series C Preferred Stock	'
Class of Stock	'
Non-cumulative annual dividend rate, per share	$0.07
Series D Preferred Stock	'
Class of Stock	'
Non-cumulative annual dividend rate, per share	$0.09
Series E Preferred Stock	'
Class of Stock	'
Non-cumulative annual dividend rate, per share	$0.11
Series F Preferred Stock	'
Class of Stock	'
Non-cumulative annual dividend rate, per share	$0.12
Series G Preferred Stock	'
Class of Stock	'
Non-cumulative annual dividend rate, per share	$0.33

EARNINGS_PER_SHARE_Calculation

EARNINGS PER SHARE (Calculation of Basic and Diluted Net Income Per Share) (Details) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Numerator:	'	'	'
Net income	$1,789	$31,704	$4,186
Less: Undistributed earnings allocated to participating securities	0	-22,668	-3,807
Net income attributable to common stockholders, basic and diluted	$1,789	$9,036	$379
Weighted-average shares used in computing net income per share attributable to common stockholders:	'	'	'
Basic (in shares)	76,744	24,847	15,584
Weighted-average effect of potentially dilutive shares:	'	'	'
Employee stock options	16,442	12,788	7,451
RSUs and other dilutive securities	175	140	234
Diluted (in shares)	93,361	37,775	23,269
Net income per share of common stock:	'	'	'
Basic (USD per share)	$0.02	$0.36	$0.02
Diluted (USD per share)	$0.02	$0.24	$0.02

EARNINGS_PER_SHARE_Antidilutiv

EARNINGS PER SHARE (Antidilutive Securities) (Details)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'	'
Shares excluded from the diluted per share calculation	1,367	3,348	45,829
Stock Options	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'	'
Shares excluded from the diluted per share calculation	1,134	3,348	2,544
RSU	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'	'
Shares excluded from the diluted per share calculation	233	0	0
Redeemable convertible preferred stock	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'	'
Shares excluded from the diluted per share calculation	0	0	43,285

INCOME_TAXES_Domestic_and_Fore

INCOME TAXES (Domestic and Foreign Components of Income (Loss)) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Domestic and Foreign Components of Income (Loss) Before Provision for Income Taxes	'	'	'
Domestic	($1,015)	$13,235	$4,149
Foreign	905	1,231	352
Total	($110)	$14,466	$4,501

INCOME_TAXES_Provision_Benefit

INCOME TAXES (Provision (Benefit) for Income Taxes) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current expense:	'	'	'
Federal	$1,880	$0	$0
State	143	317	65
Foreign	1,006	762	213
Total current expense	3,029	1,079	278
Deferred (benefit) expense:	'	'	'
Federal	-3,445	-13,805	36
State	-1,172	-4,467	1
Foreign	-311	-45	0
Total deferred (benefit) expense	-4,928	-18,317	37
Total income tax expense (benefit)	($1,899)	($17,238)	$315

INCOME_TAXES_Effective_Income_

INCOME TAXES (Effective Income Tax Rate Reconciliation) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Federal statutory rate	($38)	$4,918	$1,530
State taxes, net of federal income tax benefit	86	417	43
Non-deductible expenses	209	134	74
Stock-based compensation	1,535	701	214
Preferred stock warrant liability	0	966	295
Acquisition cost	110	0	0
Foreign tax deduction	-101	0	0
Tax credits	-4,020	-884	-589
Foreign tax rate differential	324	273	47
Other items not individually material	-4	116	50
Change in statutory rate	0	-262	0
Change in valuation allowance	0	-23,617	-1,349
Total income tax expense (benefit)	($1,899)	($17,238)	$315

INCOME_TAXES_Components_of_Def

INCOME TAXES (Components of Deferred Tax Assets and Liabilities) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred tax assets:	'	'
Accruals and reserves	$1,641	$3,308
Tax credits	6,719	4,700
Fixed assets and intangibles, other than goodwill	3,402	2,208
Net operating losses	1,645	3,490
Stock-based compensation	7,131	3,386
Deferred revenue	1,448	1,532
Other	1,517	0
Total deferred tax assets	23,503	18,624
Deferred tax liabilities	'	'
Intangible other than goodwill	-1,020	0
Goodwill	-305	-355
Net deferred tax assets	22,178	18,269
As reported:	'	'
Current deferred tax asset	7,715	9,055
Non-current deferred tax assets	15,317	9,214
Non-current deferred tax liabilities	-854	0
Net deferred tax assets	$22,178	$18,269

INCOME_TAXES_Operating_Loss_Ca

INCOME TAXES (Operating Loss Carryforwards) (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Federal	'
Operating Loss Carryforwards [Line Items]	'
Net operating loss carryforwards	$54.80
Federal | Additional Paid-in Capital	'
Operating Loss Carryforwards [Line Items]	'
Net operating loss carryforwards	54.5
State	'
Operating Loss Carryforwards [Line Items]	'
Net operating loss carryforwards	50.1
State | Additional Paid-in Capital	'
Operating Loss Carryforwards [Line Items]	'
Net operating loss carryforwards	26.4
Foreign	'
Operating Loss Carryforwards [Line Items]	'
Net operating loss carryforwards	3.4
Foreign | Additional Paid-in Capital	'
Operating Loss Carryforwards [Line Items]	'
Net operating loss carryforwards	$2.30

INCOME_TAXES_Tax_Credit_Carryf

INCOME TAXES (Tax Credit Carryforwards and Income Tax Uncertainties) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Tax Credit Carryforward [Line Items]	'	'	'	'
Unrecognized tax benefits	$2,397,000	$836,000	$937,000	$675,000
Unrecognized tax benefits that would impact effective tax rate	2,000,000	'	'	'
Federal | Research Tax Credit Carryforward	'	'	'	'
Tax Credit Carryforward [Line Items]	'	'	'	'
Tax credit carryforwards	6,100,000	'	'	'
Federal | Research Tax Credit Carryforward | Stock Option Deductions In Excess Of Book Expense	'	'	'	'
Tax Credit Carryforward [Line Items]	'	'	'	'
Tax credit carryforwards	2,000,000	'	'	'
State | Research Tax Credit Carryforward	'	'	'	'
Tax Credit Carryforward [Line Items]	'	'	'	'
Tax credit carryforwards	6,100,000	'	'	'
State | Research Tax Credit Carryforward | Stock Option Deductions In Excess Of Book Expense	'	'	'	'
Tax Credit Carryforward [Line Items]	'	'	'	'
Tax credit carryforwards	100,000	'	'	'
Foreign	'	'	'	'
Tax Credit Carryforward [Line Items]	'	'	'	'
Tax credit carryforwards	$500,000	'	'	'

INCOME_TAXES_Unrecognized_Tax_

INCOME TAXES (Unrecognized Tax Benefits Roll Forward) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Balance at beginning of year	$836	$937	$675
Increases related to current year tax positions	1,394	218	254
Increases related to prior year tax positions	167	0	8
Reductions related to prior year tax positions	0	-319	0
Balance at end of year	$2,397	$836	$937

EMPLOYEE_SAVINGS_AND_RETIREMEN1

EMPLOYEE SAVINGS AND RETIREMENT PLAN (Details)	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Maximum annual contribution per employee	100.00%

SEGEMENT_INFORMATION_Details

SEGEMENT INFORMATION (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	segment
Segment Reporting [Abstract]	'	'	'
Number of industry segments	1	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	$263,067	$214,653	$120,023
Americas	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	130,937	96,732	45,154
United States	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	118,333	91,597	42,551
Other Americas	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	12,604	5,135	2,603
APAC	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	60,117	68,630	41,658
Japan	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	17,069	27,462	15,295
Other APAC	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	43,048	41,168	26,363
EMEA	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	72,013	49,291	33,211
United Kingdom	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	28,129	20,862	8,018
Other EMEA	'	'	'
Revenues from External Customers and Long-Lived Assets	'	'	'
Revenue	$43,884	$28,429	$25,193

SEGEMENT_INFORMATION_Property_

SEGEMENT INFORMATION (Property, Plant, and Equipment by Geographic Region) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Segment Reporting Information	'	'
Property and equipment, net	$11,472	$8,959
United States	'	'
Segment Reporting Information	'	'
Property and equipment, net	8,000	'
APAC	'	'
Segment Reporting Information	'	'
Property and equipment, net	3,300	'
EMEA	'	'
Segment Reporting Information	'	'
Property and equipment, net	$200	'