Barracuda Networks (CUDA) 10-Q 2 Oct 15 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Aug. 31, 2015	Sep. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Aug. 31, 2015
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Trading Symbol	CUDA
Entity Registrant Name	BARRACUDA NETWORKS INC
Entity Central Index Key	1,348,334
Current Fiscal Year End Date	--02-29
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		53,376,731

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Current assets:
Cash and cash equivalents	$ 173,683	$ 151,373
Marketable securities	44,066	40,754
Accounts receivable, net of allowance for doubtful accounts of $1,717 and $1,531 as of August 31, 2015 and February 28, 2015, respectively	43,026	40,725
Inventories, net	5,579	4,454
Prepaid income taxes	7,879	8,245
Deferred costs	31,926	30,221
Deferred income taxes	152	479
Other current assets	4,615	4,015
Total current assets	310,926	280,266
Property and equipment, net	27,787	27,839
Deferred costs, non-current	28,288	27,715
Deferred income taxes, non-current	384	443
Other non-current assets	5,128	4,123
Intangible assets, net	8,748	9,217
Goodwill	40,063	39,742
Total assets	421,324	389,345
Current liabilities:
Accounts payable	18,530	16,356
Accrued payroll and related benefits	11,424	11,656
Other accrued liabilities	13,003	12,465
Deferred revenue	225,387	209,904
Deferred income taxes	362	563
Note payable	259	252
Total current liabilities	268,965	251,196
Long-term liabilities:
Deferred revenue, non-current	164,519	163,253
Deferred income taxes, non-current	2,250	2,396
Note payable, non-current	4,251	4,383
Other long-term liabilities	$ 7,769	$ 7,201
Commitments and contingencies (Note 8)
Stockholders' deficit:
Preferred stock, $0.001 par value; 20,000,000 shares authorized; zero shares issued and outstanding as of August 31, 2015 and February 28, 2015
Common stock, $0.001 par value; 1,000,000,000 shares authorized; 53,347,890 and 52,881,002 shares issued and outstanding as of August 31, 2015 and February 28, 2015, respectively	$ 53	$ 53
Additional paid-in capital	333,316	316,035
Accumulated other comprehensive loss	(2,789)	(4,233)
Accumulated deficit	(357,010)	(350,939)
Total stockholders' deficit	(26,430)	(39,084)
Total liabilities and stockholders' deficit	$ 421,324	$ 389,345

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 1,717	$ 1,531
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	53,347,890	52,881,002
Common stock, shares outstanding	53,347,890	52,881,002

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Revenue:
Appliance	$ 22,288	$ 20,676	$ 45,970	$ 41,512
Subscription	56,083	47,976	110,375	93,349
Total revenue	78,371	68,652	156,345	134,861
Cost of revenue	15,935	14,044	31,901	28,450
Gross profit	62,436	54,608	124,444	106,411
Operating expenses:
Research and development	17,502	13,826	35,502	26,778
Sales and marketing	34,470	31,031	68,602	60,510
General and administrative	10,770	8,624	21,468	17,188
Total operating expenses	62,742	53,481	125,572	104,476
Income (loss) from operations	(306)	1,127	(1,128)	1,935
Other income (expense), net	97	(681)	(471)	(738)
Income (loss) before income taxes	(209)	446	(1,599)	1,197
Benefit from (provision for) income taxes	(2,030)	292	(4,472)	(308)
Net income (loss) (Note 9)	$ (2,239)	$ 738	$ (6,071)	$ 889
Net income (loss) per share:
Basic	$ (0.04)	$ 0.01	$ (0.11)	$ 0.02
Diluted	$ (0.04)	$ 0.01	$ (0.11)	$ 0.02
Weighted-average shares used to compute net income (loss) per share:
Basic	53,270	51,667	53,133	51,412
Diluted	53,270	53,743	53,133	53,675

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (2,239)	$ 738	$ (6,071)	$ 889
Other comprehensive income (loss), net of tax:
Change in net foreign currency translation adjustment	375	(606)	324	(575)
Available-for-sale investments:
Change in net unrealized gains (losses) (net of tax effect of $0, $0, $0 and $0)	(733)		1,122
Less: reclassification adjustment for net gains (losses) included in net income (loss) (net of tax effect of $0, $0, $1 and $0)	1		(2)
Net change	(732)		1,120
Other comprehensive income (loss)	(357)	(606)	1,444	(575)
Comprehensive income (loss)	$ (2,596)	$ 132	$ (4,627)	$ 314

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Statement of Comprehensive Income [Abstract]
Change in net unrealized gains (losses), tax	$ 0	$ 0	$ 0	$ 0
Reclassification adjustment for net gains (losses) included in net income (loss), tax	$ 0	$ 0	$ 1	$ 0

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014
Operating activities
Net income (loss)	$ (6,071)	$ 889
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization expense	4,469	4,422
Stock-based compensation expense	13,710	6,818
Excess tax benefits from equity compensation plans	(3,260)	(4,338)
Deferred income taxes	239	(6,198)
Other	670	31
Changes in operating assets and liabilities:
Accounts receivable, net	(2,143)	(8,527)
Inventories, net	(1,125)	463
Income taxes, net	4,019	3,073
Deferred costs	(2,284)	(4,412)
Other assets	(933)	(147)
Accounts payable	2,225	(1,267)
Accrued payroll and related benefits	2,298	(29)
Other liabilities	53	531
Deferred revenue	16,752	29,573
Net cash provided by operating activities	28,619	20,882
Investing activities
Purchase of marketable securities	(14,240)
Proceeds from the sale of marketable securities	7,177
Proceeds from the maturity of marketable securities	4,667
Purchase of investments in non-marketable equity and debt securities	(350)	(600)
Purchase of property and equipment	(3,443)	(3,775)
Business combinations, net of cash acquired	(749)	(4,791)
Net cash used in investing activities	(6,938)	(9,166)
Financing activities
Proceeds from issuance of common stock	4,300	7,246
Taxes paid related to net share settlement of equity awards	(4,026)	(2,340)
Excess tax benefits from equity compensation plans	3,260	4,338
Employee loans extended, net of repayment	(2,484)	(70)
Repayment of note payable	(125)	(118)
Other	(181)
Net cash provided by financing activities	744	9,056
Effect of exchange rate changes on cash and cash equivalents	(115)	(92)
Net increase in cash and cash equivalents	22,310	20,680
Cash and cash equivalents at beginning of period	151,373	135,879
Cash and cash equivalents at end of period	$ 173,683	$ 156,559

Overview and Basis of Presentat

Overview and Basis of Presentation	6 Months Ended
	Aug. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Overview and Basis of Presentation	1. Overview and Basis of Presentation Nature of Operations Barracuda Networks, Inc., also referred to in this report as “we,” “our,” “us,” “Barracuda” or “the Company,” is headquartered in Campbell, California, and designs and delivers powerful yet easy-to-use security and storage solutions. We offer cloud-connected solutions that help our customers address security threats, improve network performance and protect and store their data. Our solutions are designed to simplify IT operations for our customers, allowing them to enhance their return on technology investments. Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. We evaluate our estimates on an ongoing basis, including those related to the fair values of stock-based awards, income taxes and contingent liabilities, among others. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from those estimates and such differences could be material to our condensed consolidated financial position and results of operations. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP, and follow the requirements of the U.S. Securities and Exchange Commission (the “SEC”) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP are condensed or omitted. In management’s opinion, the unaudited condensed financial statements have been prepared on the same basis as the audited financial statements and include all adjustments, which include only normal recurring adjustments, necessary for the fair presentation of our financial information. The results for the three and six months ended August 31, 2015 are not necessarily indicative of the results expected for the full fiscal year. The condensed consolidated balance sheet as of February 28, 2015 has been derived from audited financial statements at that date but does not include all of the information required by GAAP. The accompanying unaudited condensed consolidated financial statements include the accounts of Barracuda Networks, Inc. and our wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. The accompanying unaudited condensed consolidated financial statements and related financial information should be read in conjunction with the audited financial statements and related footnotes included in our most recent Annual Report on Form 10-K. There have been no material changes in our significant accounting policies from those that were disclosed in our Annual Report on Form 10-K for the fiscal year ended February 28, 2015. Foreign Currency We have foreign subsidiaries that operate and sell our products and services in various countries and jurisdictions around the world. As a result, we are exposed to foreign exchange risks. We utilize foreign exchange forward contracts to manage foreign currency risk associated with foreign currency denominated monetary assets and liabilities, primarily trade receivables, and to reduce the volatility of earnings and cash flows related to foreign currency transactions. The fair values of our contracts as of August 31, 2015 and February 28, 2015 were not significant. The change in the fair value of these foreign currency forward contracts is recorded as gain (loss) in other income (expense), net in the condensed consolidated statement of operations. For those subsidiaries whose functional currency is not the U.S. dollar, assets and liabilities are translated into U.S. dollar equivalents at the exchange rate in effect on the balance sheet date and revenues and expenses are translated into U.S. dollars using the average exchange rate over the period. Resulting currency translation adjustments are recorded in accumulated other comprehensive income (loss) in the condensed consolidated balance sheets. We recorded net gains (losses) resulting from foreign exchange transactions of $0.1 million and $(0.5) million for the three and six months ended August 31, 2015, respectively. We recorded net losses resulting from foreign exchange transactions of $0.6 million for the three and six months ended August 31, 2014. Recent Accounting Pronouncements In September 2015, the Financial Accounting Standards Board (the “FASB”) issued an accounting standard to simplify the accounting for measurement period adjustments in connection with business combinations by requiring that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The standard update is effective for fiscal years beginning after December 15, 2015 and interim periods within those fiscal years. The standard update is to be applied prospectively to adjustments of provisional amounts that occur after the effective date with earlier application permitted for financial statements that have not been issued. We do not expect the adoption of this standard to have an impact on our condensed consolidated financial statements. In July 2015, the FASB issued an accounting standard to simplify the measurement of inventory by changing the subsequent measurement guidance from the lower of cost or market to the lower of cost and net realizable value for inventory. The standard update is effective for fiscal years beginning after December 15, 2016 and interim periods within those years, and early adoption is permitted. The standard is to be applied prospectively and does not apply to inventory that is measured using last-in, first-out or the retail inventory method. We do not expect the adoption of this standard to have an impact on our condensed consolidated financial statements. In May 2014, the FASB issued an accounting standard which completes the joint effort by the FASB and the International Accounting Standards Board to clarify the principles for recognizing revenue and improving financial reporting by creating common revenue recognition guidance for GAAP and International Financial Reporting Standards. The core principle of this update is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The original effective date would have required us to adopt this update in the first quarter of fiscal 2018. However, in July 2015, the FASB amended the standard to provide a one-year deferral of the effective date, as well as providing the option to early adopt the standard on the original effective date. Accordingly, we may adopt the standard in either the first quarter of fiscal 2018 or the first quarter of fiscal 2019. The standard allows for full retrospective adoption applied to all periods presented or retrospective adoption with the cumulative effect of initially applying this update recognized at the date of initial application. We are currently evaluating the impact of adopting this update on our condensed consolidated financial statements.

Balance Sheet Information

Balance Sheet Information	6 Months Ended
	Aug. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Balance Sheet Information	2. Balance Sheet Information Cash, Cash Equivalents and Marketable Securities The following table summarizes our cash and cash equivalents by category (in thousands): As of As of Cash $ 121,402 $ 97,187 Money market funds 52,281 54,186 $ 173,683 $ 151,373 The following tables summarize our marketable securities by category (in thousands): As of August 31, 2015 Amortized Gross Gross Fair Value Asset-backed securities $ 4,951 $ 9 $ (1 ) $ 4,959 Corporate debt securities 21,621 3 (17 ) 21,607 Equity securities 3,095 1,152 — 4,247 Foreign government bonds 207 — (1 ) 206 Mortgage-backed securities 2,657 2 (14 ) 2,645 U.S. government agency securities 7,542 7 (33 ) 7,516 U.S. government notes 2,886 — — 2,886 $ 42,959 $ 1,173 $ (66 ) $ 44,066 As of February 28, 2015 Amortized Gross Gross Fair Value Asset-backed securities $ 4,846 $ 3 $ (4 ) $ 4,845 Corporate debt securities 21,241 17 (13 ) 21,245 Equity securities 1,211 37 (32 ) 1,216 Foreign government bonds 201 — — 201 Mortgage-backed securities 2,716 4 (10 ) 2,710 U.S. government agency securities 7,310 8 (24 ) 7,294 U.S. government notes 3,242 1 — 3,243 $ 40,767 $ 70 $ (83 ) $ 40,754 We use the specific-identification method to determine any realized gains or losses from the sale of our marketable securities classified as available-for-sale. Such realized gains and losses were insignificant for each of the three and six months ended August 31, 2015 and 2014. We reflect these gains and losses as a component of other income (expense), net in the condensed consolidated statements of operations. The following tables present gross unrealized losses and fair values for those marketable securities that were in an unrealized loss position aggregated by investment category and the length of time that individual securities have been in a continuous loss position (in thousands): As of August 31, 2015 Less Than 12 Months 12 Months or Greater Total Fair Unrealized Fair Value Unrealized Fair Value Unrealized Asset-backed securities $ 1,018 $ (1 ) $ — $ — $ 1,018 $ (1 ) Corporate debt securities 13,846 (17 ) — — 13,846 (17 ) Foreign government bonds 207 (1 ) — — 207 (1 ) Mortgage-backed securities 2,219 (14 ) — — 2,219 (14 ) U.S. government agency securities 4,421 (33 ) — — 4,421 (33 ) $ 21,711 $ (66 ) $ — $ — $ 21,711 $ (66 ) As of February 28, 2015 Less Than 12 Months 12 Months or Greater Total Fair Unrealized Fair Value Unrealized Fair Value Unrealized Asset-backed securities $ 2,385 $ (4 ) $ — $ — $ 2,385 $ (4 ) Corporate debt securities 11,346 (13 ) — — 11,346 (13 ) Equity securities 978 (32 ) — — 978 (32 ) Mortgage-backed securities 1,923 (10 ) — — 1,923 (10 ) U.S. government agency securities 4,331 (24 ) — — 4,331 (24 ) $ 20,963 $ (83 ) $ — $ — $ 20,963 $ (83 ) We periodically review our marketable securities for other-than-temporary impairment. We consider factors such as the duration, severity and the reason for the decline in value, the potential recovery period and whether we intend to sell. For marketable debt securities, we also consider whether (i) it is more likely than not that we will be required to sell the debt securities before recovery of their amortized cost basis, and (ii) the amortized cost basis cannot be recovered as a result of credit losses. Unrealized losses related to these investments are due to interest rate fluctuations as opposed to changes in credit quality. We do not intend to sell and it is not more likely than not that we would be required to sell these investments before recovery of their amortized cost basis, which may be at maturity. As of August 31, 2015, we have recognized no other-than-temporary impairment loss. The following table summarizes the estimated fair value of our investments in marketable debt securities by contractual maturities (in thousands): As of Due in 1 year $ 13,738 Due in 1 year through 5 years 21,259 Due in 5 years through 10 years 580 Due after 10 years 4,242 $ 39,819 Fair Value Measurements We determine fair value based on the fair value hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value assumes that the transaction to sell the asset or transfer the liability occurs in the principal or most advantageous market for the asset or liability and establishes that the fair value of an asset or liability shall be determined based on the assumptions that market participants would use in pricing the asset or liability. The classification of a financial asset or liability within the hierarchy is based upon the lowest level input that is significant to the fair value measurement. The fair value hierarchy prioritizes the inputs into three levels that may be used to measure fair value: Level 1: Inputs are unadjusted quoted prices in active markets for identical assets or liabilities. Level 2: Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3: Inputs are unobservable inputs based on our assumptions. Cash equivalents and marketable equity securities are classified within Level 1 because they are valued using quoted market prices or alternative pricing sources and models utilizing market observable inputs. Marketable debt securities and derivative assets are classified within Level 2 if the investments are valued using model driven valuations which use observable inputs such as quoted market prices, benchmark yields, reported trades, broker/dealer quotes or alternative pricing sources with reasonable levels of price transparency. Our marketable securities are held by custodians who obtain investment prices from a third-party pricing provider that incorporates standard inputs in various asset price models. We estimated the fair value of our Level 3 contingent consideration liabilities based on a weighted probability assessment of achieving the milestones related to certain of our acquisitions. Significant increases (decreases) in the probability assumptions in isolation would result in a significantly higher (lower) fair value measurement. In developing these estimates, we considered unobservable inputs that are supported by little or no market activity and reflect our own assumptions. The following table summarizes the change in fair value of our Level 3 contingent consideration amounts (in thousands): Balance as of February 28, 2015 $ 3,028 Acquisition addition 334 Total remeasurement recognized in earnings 147 Settlements (25 ) Balance as of August 31, 2015 $ 3,484 For the three and six months ended August 31, 2015, the contingent consideration remeasurement was recognized within research and development and sales and marketing expenses in our condensed consolidated statement of operations. Financial assets measured at fair value on a recurring basis are summarized below (in thousands): As of August 31, 2015 Level 1 Level 2 Level 3 Total Cash equivalents: Money market funds $ 52,281 $ — $ — $ 52,281 Marketable securities: Asset-backed securities $ — $ 4,959 $ — $ 4,959 Corporate debt securities $ — $ 21,607 $ — $ 21,607 Equity securities $ 4,247 $ — $ — $ 4,247 Foreign government bonds $ — $ 206 $ — $ 206 Mortgage-backed securities $ — $ 2,645 $ — $ 2,645 U.S. government agency securities $ — $ 7,516 $ — $ 7,516 U.S. government notes $ — $ 2,886 $ — $ 2,886 Other accrued liabilities (current): Contingent consideration $ — $ — $ 1,293 $ 1,293 Other long-term liabilities: Contingent consideration $ — $ — $ 2,191 $ 2,191 As of February 28, 2015 Level 1 Level 2 Level 3 Total Cash equivalents: Money market funds $ 54,186 $ — $ — $ 54,186 Marketable securities: Asset-backed securities $ — $ 4,845 $ — $ 4,845 Corporate debt securities $ — $ 21,245 $ — $ 21,245 Equity securities $ 1,216 $ — $ — $ 1,216 Foreign government bonds $ — $ 201 $ — $ 201 Mortgage-backed securities $ — $ 2,710 $ — $ 2,710 U.S. government agency securities $ — $ 7,294 $ — $ 7,294 U.S. government notes $ — $ 3,243 $ — $ 3,243 Derivative assets not designated (current): Foreign exchange contracts $ — $ 31 $ — $ 31 Other accrued liabilities (current): Contingent consideration $ — $ — $ 1,150 $ 1,150 Other long-term liabilities: Contingent consideration $ — $ — $ 1,878 $ 1,878 Inventories, Net Inventories, net consisted of the following (in thousands): As of As of Raw materials $ 2,802 $ 2,455 Finished goods 3,448 2,729 Reserves (671 ) (730 ) $ 5,579 $ 4,454 Deferred Costs Deferred costs consisted of the following (in thousands): As of As of Appliance $ 42,777 $ 41,052 Commissions 17,437 16,884 $ 60,214 $ 57,936 Property and Equipment, Net Property and equipment, net consisted of the following (in thousands): As of As of Land $ 9,418 $ 9,354 Building 6,549 6,549 Computer hardware and software 20,023 17,860 Vehicles, machinery and equipment 4,089 3,546 Leasehold improvements 3,307 2,965 43,386 40,274 Accumulated depreciation and amortization (15,599 ) (12,435 ) $ 27,787 $ 27,839 Depreciation and amortization expense related to property and equipment was $1.7 million and $3.3 million for the three and six months ended August 31, 2015, respectively, and $1.2 million and $2.3 million for the three and six months ended August 31, 2014, respectively. Investment in Non-marketable Equity Security As of February 28, 2015, we have invested approximately $1.3 million in stock of a private company, which was accounted for under the equity method. We recognize our proportional share of earnings and losses of the investee in our financial statements and adjust the carrying amount of our investment accordingly. In August 2015, we acquired additional shares of stock in the privately held company for approximately $0.4 million to maintain our approximately 24% ownership interest. For the three and six months ended August 31, 2015, our proportionate share of the investee’s losses was $0.1 million and $0.2 million, respectively. For the three and six months ended August 31, 2014, our proportionate share was not material. The investment is classified in other non-current assets in our condensed consolidated balance sheets. Accumulated Other Comprehensive Income (Loss) The components of accumulated other comprehensive income (loss) (“AOCI”), net of tax, were as follows (in thousands): Foreign Unrealized Gains Total Balance as of February 28, 2015 $ (4,225 ) $ (8 ) $ (4,233 ) Other comprehensive income (loss) before reclassifications 324 1,122 1,446 Amounts reclassified from AOCI — (2 ) (2 ) Other comprehensive income (loss) 324 1,120 1,444 Balance as of August 31, 2015 $ (3,901 ) $ 1,112 $ (2,789 )

Acquisition

Acquisition	6 Months Ended
	Aug. 31, 2015
Business Combinations [Abstract]
Acquisition	3. Acquisition In the three months ended August 31, 2015, we completed an acquisition for total consideration of approximately $1.1 million, which included an estimated fair value for contingent consideration of $0.3 million. $0.7 million was attributed to intangible assets and $0.3 million was attributed to goodwill. The goodwill is primarily attributed to the synergies expected to be realized following the acquisition and is expected to be deductible for income tax purposes. As of the acquisition date, customer relationships and developed technology and other had weighted-average useful lives of 7.0 years and 1.0 years, respectively. The results of operations, since the acquisition date, were not material to our condensed consolidated results of operations for the three and six months ended August 31, 2015. Pro forma results of operations have not been presented because they are not material to our condensed consolidated results of operations.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Aug. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	4. Goodwill and Intangible Assets The changes in the carrying amount of goodwill are summarized as follows (in thousands): Balance as of February 28, 2015 $ 39,742 Goodwill acquired 336 Effect of foreign exchange rates (15 ) Balance as of August 31, 2015 $ 40,063 Intangible assets subject to amortization are summarized as follows (in thousands): As of August 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Value Acquired developed technology $ 28,944 $ (23,724 ) $ 5,220 Software license 400 (400 ) — Customer relationships 8,799 (6,360 ) 2,439 Patents 1,625 (1,151 ) 474 Trade name 519 (200 ) 319 Acquired developed software 200 (200 ) — $ 40,487 $ (32,035 ) $ 8,452 As of February 28, 2015 Gross Accumulated Net Acquired developed technology $ 28,799 $ (22,987 ) $ 5,812 Software license 400 (400 ) — Customer relationships 8,233 (6,032 ) 2,201 Patents 1,625 (1,058 ) 567 Trade name 513 (172 ) 341 Acquired developed software 200 (200 ) — $ 39,770 $ (30,849 ) $ 8,921 In addition to the above, we maintained other intangible assets not subject to amortization of $296,000 as of August 31, 2015 and February 28, 2015. Amortization expense was $0.6 million and $1.2 million for the three and six months ended August 31, 2015, respectively, and $1.1 million and $2.1 million for the three and six months ended August 31, 2014, respectively. As of August 31, 2015, amortization expense for intangible assets in future periods was as follows: $1.3 million for the remainder of fiscal 2016, $2.3 million for fiscal 2017, $1.9 million for fiscal 2018, $1.0 million for fiscal 2019, $0.8 million for fiscal 2020 and $1.2 million thereafter.

Stockholders' Deficit

Stockholders' Deficit	6 Months Ended
	Aug. 31, 2015
Equity [Abstract]
Stockholders' Deficit	5. Stockholders’ Deficit Stock-Based Compensation Activities Our 2012 Equity Incentive Plan (the “2012 Plan”) authorizes the granting of stock options, stock appreciation rights, restricted stock and restricted stock units (“RSUs”) to employees, directors and contractors. Options granted are exercisable for periods not to exceed 10 years. Options and RSUs granted typically vest over four years contingent upon employment or service with us on the vesting date. As of August 31, 2015, net of forecasted forfeitures, there was $21.4 million of unrecognized compensation cost related to outstanding stock options, expected to be recognized over a weighted-average period of 2.71 years and $40.3 million of unrecognized compensation cost related to unvested RSUs, expected to be recognized over a weighted-average period of 3.07 years. To the extent the actual forfeiture rate is different from what management has anticipated, stock-based compensation expense related to these equity awards will be different from management’s expectations. Total stock-based compensation expense has been classified as follows in the accompanying condensed consolidated statements of operations (in thousands): Three Months Ended August 31, Six Months Ended August 31, 2015 2014 2015 2014 Cost of revenue $ 255 $ 73 $ 466 $ 125 Research and development 2,000 902 3,835 1,650 Sales and marketing 1,639 821 3,189 1,403 General and administrative 3,272 1,940 6,220 3,640 $ 7,166 $ 3,736 $ 13,710 $ 6,818 Employee Stock Purchase Plan Following approval by our board of directors, in July 2015, our stockholders approved the adoption of the 2015 Employee Stock Purchase Plan (the “ESPP”) by the Company. The ESPP allows eligible employee participants to purchase shares of our common stock at a discount through payroll deductions. The ESPP consists of offering periods that are approximately six months in length and employees may purchase shares in each period at 85% of the lower of the Company’s fair market value on the first trading day of each offering period or on the purchase date. The ESPP will continue until the earlier to occur of (i) the termination of the ESPP by our board of directors, or (ii) June 15, 2035. As of August 31, 2015, we had reserved 750,000 shares of our common stock for issuance under the ESPP and all such shares remain available for future issuance.

Income Taxes

Income Taxes	6 Months Ended
	Aug. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	6. Income Taxes For the three and six months ended August 31, 2015, we recorded an income tax provision of $2.0 million and $4.5 million, respectively. For the three and six months ended August 31, 2014, we recorded an income tax benefit of $0.3 million and an income tax provision of $0.3 million, respectively. In fiscal 2015, we established a valuation allowance against a significant portion of our deferred tax assets, including U.S. federal and state deferred tax assets and certain foreign deferred tax assets, because realization of these tax benefits through future taxable income did not meet the more-likely-than-not threshold. We intend to maintain the valuation allowances until sufficient positive evidence exists to support its reversal. The difference between the income tax benefit that would be derived by applying the statutory rate to our before tax loss for the six months ended August 31, 2015 and the income tax provision actually recorded is primarily due to the temporary differences we did not benefit from during the period due to our valuation allowance, as well as non-deductible stock-based compensation expense and other currently non-deductible items.

Segment Information

Segment Information	6 Months Ended
	Aug. 31, 2015
Segment Reporting [Abstract]
Segment Information	7. Segment Information Our chief operating decision maker reviews the financial information presented on a consolidated basis for purposes of allocating resources and evaluating our financial performance. Accordingly, we have determined that we operate in a single reporting segment. Revenue by geographic region is presented as follows (in thousands): Three Months Ended Six Months Ended 2015 2014 2015 2014 North America $ 57,027 $ 50,219 $ 113,068 $ 98,538 United States 53,730 47,234 106,534 92,564 Other 3,297 2,985 6,534 5,974 Latin America 1,096 786 2,112 1,595 Asia-Pacific 4,850 4,503 9,505 8,990 EMEA 15,398 13,144 31,660 25,738 $ 78,371 $ 68,652 $ 156,345 $ 134,861

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Aug. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	8. Commitments and Contingencies Legal Matters In late 2011, following a voluntary internal review of our compliance with U.S. export control and sanctions laws, our management team became aware that certain of our physical appliances had been sold indirectly into embargoed countries via our distributors and resellers, potentially in violation of U.S. export control and economic sanctions laws. In addition, certain of our solutions incorporate encryption components and may be exported from the United States only with the required approvals; in the past, we may have exported products prior to receiving these required authorizations. After completion of a comprehensive internal investigation conducted by outside counsel, we submitted voluntary disclosures regarding these matters to the U.S. Commerce Department, Bureau of Industry and Security (“BIS”), and to the U.S. Treasury Department, Office of Foreign Assets Control (“OFAC”). These disclosures summarized potential violations of export controls and economic sanctions laws, including reexports by third parties and provision of services to end users in embargoed countries including Iran, Sudan and Syria. We agreed to a settlement with OFAC in May 2015 pursuant to which we agreed to pay $38,930 as consideration for the final resolution of all issues related to the voluntary disclosure that we submitted to OFAC. We received a Proposed Charging Letter from BIS on August 21, 2014, which asserts certain export violations against us and our UK subsidiary. Based on discussions with BIS, we expect a one-time monetary penalty to be imposed, and do not currently expect any criminal charges, denial of export privileges or ongoing monitoring actions. We intend to continue cooperating with BIS in an effort to resolve this matter. However, at this time, we are unable to estimate the timing or amount of any final resolution. On January 23, 2015, Wetro Lan LLC (“Wetro Lan”) filed a lawsuit against us in the U.S. District Court for the Eastern District of Texas, Marshall Division, Wetro Lan LLC v. Barracuda Networks, Inc., Case No. 2:15-CV-46, alleging that certain of our products infringe U.S. Pat. No. 6,795,918. We were notified by RPX Corporation (“RPX”) that it had entered into a settlement and license agreement with Wetro Lan for the patents in the lawsuit. As a result, we expect that the lawsuit will be dismissed with prejudice and we will not pay any fees associated with the settlement and license. On June 3, 2015, Verifire Network Solutions, LLC (“Verifire”) filed a lawsuit against us in the U.S. District Court for the Eastern District of Texas, Marshall Division, Verifire Network Solutions, LLC v. Barracuda Networks, Inc., Case No. 2:15-CV-928, alleging that certain of our products infringe U.S. Pat. No. 8,463,727. We were notified by RPX that it had entered into a settlement and license agreement with Verifire for the patents in the lawsuit. As a result, the lawsuit was dismissed with prejudice on September 21, 2015 and we did not pay any fees associated with the settlement and license. From time to time, we are party to litigation and subject to claims that arise in the ordinary course of our business, including actions with respect to employment claims and other matters. Although the results of litigation and claims are inherently unpredictable, we believe that the final outcome of such matters will not have a material adverse effect on our business, consolidated financial position, results of operations or cash flows.

Net Income (Loss) Per Share

Net Income (Loss) Per Share	6 Months Ended
	Aug. 31, 2015
Earnings Per Share [Abstract]
Net Income (Loss) Per Share	9. Net Income (Loss) Per Share The following table presents the calculation of basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended Six Months Ended 2015 2014 2015 2014 Net income (loss) $ (2,239 ) $ 738 $ (6,071 ) $ 889 Weighted-average shares used to compute net income (loss) per share, basic 53,270 51,667 53,133 51,412 Dilutive shares from stock options and RSUs — 2,076 — 2,263 Weighted-average shares used to compute net income (loss) per share, diluted 53,270 53,743 53,133 53,675 Net income (loss) per share, basic $ (0.04 ) $ 0.01 $ (0.11 ) $ 0.02 Net income (loss) per share, diluted $ (0.04 ) $ 0.01 $ (0.11 ) $ 0.02

Subsequent Events

Subsequent Events	6 Months Ended
	Aug. 31, 2015
Subsequent Events [Abstract]
Subsequent Events	10. Subsequent Events Acquisition On September 23, 2015, we entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Intronis, Inc., a Delaware corporation (“Intronis”), Igloo Merger Corp., a Delaware corporation and a wholly-owned subsidiary of the Company (“Merger Sub”), and certain other parties, pursuant to which Merger Sub will merge with and into Intronis, and Intronis will continue to exist as a wholly-owned subsidiary of the Company. Under the terms of the Merger Agreement, we will pay $65.0 million in cash (the “Purchase Price”) for the transaction subject to certain adjustments set forth in the Merger Agreement, which we expect to finance through available cash and cash equivalents. The Merger Agreement provides that $7.0 million of the Purchase Price will be held in escrow by us as partial security for the indemnification obligations of the equityholders of Intronis. The transaction is expected to close in the third quarter of fiscal 2016 and is subject to customary closing conditions, including, among others the delivery of certain third party consents, employment agreements and non-competition agreements and the approval of Intronis’ stockholders. Additionally, each of the Company, Merger Sub and Intronis has made customary representations, warranties and covenants in the Merger Agreement. Stock Repurchase Program In September 2015, our board of directors authorized a stock repurchase program. Under the program, we are authorized to repurchase shares of our common stock for an aggregate purchase price not to exceed $50.0 million through September 30, 2017. Although our board of directors has authorized the stock repurchase program, the stock repurchase program does not obligate us to repurchase any specific dollar amount or to acquire any specific number of shares. Stock will be purchased from time to time, in the open market or through private transactions, subject to market condition, in compliance with applicable state and federal securities laws. The timing and amount of repurchases, if any, will depend upon several factors, including market and business conditions, the trading price of our common stock and the nature of other investment opportunities.

Overview and Basis of Present18

Overview and Basis of Presentation (Policies)	6 Months Ended
	Aug. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations	Nature of Operations Barracuda Networks, Inc., also referred to in this report as “we,” “our,” “us,” “Barracuda” or “the Company,” is headquartered in Campbell, California, and designs and delivers powerful yet easy-to-use security and storage solutions. We offer cloud-connected solutions that help our customers address security threats, improve network performance and protect and store their data. Our solutions are designed to simplify IT operations for our customers, allowing them to enhance their return on technology investments.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. We evaluate our estimates on an ongoing basis, including those related to the fair values of stock-based awards, income taxes and contingent liabilities, among others. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from those estimates and such differences could be material to our condensed consolidated financial position and results of operations.
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP, and follow the requirements of the U.S. Securities and Exchange Commission (the “SEC”) for interim reporting. As permitted under those rules, certain footnotes or other financial information that are normally required by GAAP are condensed or omitted. In management’s opinion, the unaudited condensed financial statements have been prepared on the same basis as the audited financial statements and include all adjustments, which include only normal recurring adjustments, necessary for the fair presentation of our financial information. The results for the three and six months ended August 31, 2015 are not necessarily indicative of the results expected for the full fiscal year. The condensed consolidated balance sheet as of February 28, 2015 has been derived from audited financial statements at that date but does not include all of the information required by GAAP. The accompanying unaudited condensed consolidated financial statements include the accounts of Barracuda Networks, Inc. and our wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. The accompanying unaudited condensed consolidated financial statements and related financial information should be read in conjunction with the audited financial statements and related footnotes included in our most recent Annual Report on Form 10-K. There have been no material changes in our significant accounting policies from those that were disclosed in our Annual Report on Form 10-K for the fiscal year ended February 28, 2015.
Foreign Currency	Foreign Currency We have foreign subsidiaries that operate and sell our products and services in various countries and jurisdictions around the world. As a result, we are exposed to foreign exchange risks. We utilize foreign exchange forward contracts to manage foreign currency risk associated with foreign currency denominated monetary assets and liabilities, primarily trade receivables, and to reduce the volatility of earnings and cash flows related to foreign currency transactions. The fair values of our contracts as of August 31, 2015 and February 28, 2015 were not significant. The change in the fair value of these foreign currency forward contracts is recorded as gain (loss) in other income (expense), net in the condensed consolidated statement of operations. For those subsidiaries whose functional currency is not the U.S. dollar, assets and liabilities are translated into U.S. dollar equivalents at the exchange rate in effect on the balance sheet date and revenues and expenses are translated into U.S. dollars using the average exchange rate over the period. Resulting currency translation adjustments are recorded in accumulated other comprehensive income (loss) in the condensed consolidated balance sheets. We recorded net gains (losses) resulting from foreign exchange transactions of $0.1 million and $(0.5) million for the three and six months ended August 31, 2015, respectively. We recorded net losses resulting from foreign exchange transactions of $0.6 million for the three and six months ended August 31, 2014.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In September 2015, the Financial Accounting Standards Board (the “FASB”) issued an accounting standard to simplify the accounting for measurement period adjustments in connection with business combinations by requiring that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The standard update is effective for fiscal years beginning after December 15, 2015 and interim periods within those fiscal years. The standard update is to be applied prospectively to adjustments of provisional amounts that occur after the effective date with earlier application permitted for financial statements that have not been issued. We do not expect the adoption of this standard to have an impact on our condensed consolidated financial statements. In July 2015, the FASB issued an accounting standard to simplify the measurement of inventory by changing the subsequent measurement guidance from the lower of cost or market to the lower of cost and net realizable value for inventory. The standard update is effective for fiscal years beginning after December 15, 2016 and interim periods within those years, and early adoption is permitted. The standard is to be applied prospectively and does not apply to inventory that is measured using last-in, first-out or the retail inventory method. We do not expect the adoption of this standard to have an impact on our condensed consolidated financial statements. In May 2014, the FASB issued an accounting standard which completes the joint effort by the FASB and the International Accounting Standards Board to clarify the principles for recognizing revenue and improving financial reporting by creating common revenue recognition guidance for GAAP and International Financial Reporting Standards. The core principle of this update is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The original effective date would have required us to adopt this update in the first quarter of fiscal 2018. However, in July 2015, the FASB amended the standard to provide a one-year deferral of the effective date, as well as providing the option to early adopt the standard on the original effective date. Accordingly, we may adopt the standard in either the first quarter of fiscal 2018 or the first quarter of fiscal 2019. The standard allows for full retrospective adoption applied to all periods presented or retrospective adoption with the cumulative effect of initially applying this update recognized at the date of initial application. We are currently evaluating the impact of adopting this update on our condensed consolidated financial statements.
Fair Value Measurements	Fair Value Measurements We determine fair value based on the fair value hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value assumes that the transaction to sell the asset or transfer the liability occurs in the principal or most advantageous market for the asset or liability and establishes that the fair value of an asset or liability shall be determined based on the assumptions that market participants would use in pricing the asset or liability. The classification of a financial asset or liability within the hierarchy is based upon the lowest level input that is significant to the fair value measurement. The fair value hierarchy prioritizes the inputs into three levels that may be used to measure fair value: Level 1: Inputs are unadjusted quoted prices in active markets for identical assets or liabilities. Level 2: Inputs are quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument. Level 3: Inputs are unobservable inputs based on our assumptions. Cash equivalents and marketable equity securities are classified within Level 1 because they are valued using quoted market prices or alternative pricing sources and models utilizing market observable inputs. Marketable debt securities and derivative assets are classified within Level 2 if the investments are valued using model driven valuations which use observable inputs such as quoted market prices, benchmark yields, reported trades, broker/dealer quotes or alternative pricing sources with reasonable levels of price transparency. Our marketable securities are held by custodians who obtain investment prices from a third-party pricing provider that incorporates standard inputs in various asset price models. We estimated the fair value of our Level 3 contingent consideration liabilities based on a weighted probability assessment of achieving the milestones related to certain of our acquisitions. Significant increases (decreases) in the probability assumptions in isolation would result in a significantly higher (lower) fair value measurement. In developing these estimates, we considered unobservable inputs that are supported by little or no market activity and reflect our own assumptions.
Investment in Non-marketable Equity Security	Investment in Non-marketable Equity Security As of February 28, 2015, we have invested approximately $1.3 million in stock of a private company, which was accounted for under the equity method. We recognize our proportional share of earnings and losses of the investee in our financial statements and adjust the carrying amount of our investment accordingly. In August 2015, we acquired additional shares of stock in the privately held company for approximately $0.4 million to maintain our approximately 24% ownership interest.
Segment Information	Our chief operating decision maker reviews the financial information presented on a consolidated basis for purposes of allocating resources and evaluating our financial performance. Accordingly, we have determined that we operate in a single reporting segment.

Balance Sheet Information (Tabl

Balance Sheet Information (Tables)	6 Months Ended
	Aug. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and Cash Equivalents	The following table summarizes our cash and cash equivalents by category (in thousands): As of As of Cash $ 121,402 $ 97,187 Money market funds 52,281 54,186 $ 173,683 $ 151,373
Marketable Securities	The following tables summarize our marketable securities by category (in thousands): As of August 31, 2015 Amortized Gross Gross Fair Value Asset-backed securities $ 4,951 $ 9 $ (1 ) $ 4,959 Corporate debt securities 21,621 3 (17 ) 21,607 Equity securities 3,095 1,152 — 4,247 Foreign government bonds 207 — (1 ) 206 Mortgage-backed securities 2,657 2 (14 ) 2,645 U.S. government agency securities 7,542 7 (33 ) 7,516 U.S. government notes 2,886 — — 2,886 $ 42,959 $ 1,173 $ (66 ) $ 44,066 As of February 28, 2015 Amortized Gross Gross Fair Value Asset-backed securities $ 4,846 $ 3 $ (4 ) $ 4,845 Corporate debt securities 21,241 17 (13 ) 21,245 Equity securities 1,211 37 (32 ) 1,216 Foreign government bonds 201 — — 201 Mortgage-backed securities 2,716 4 (10 ) 2,710 U.S. government agency securities 7,310 8 (24 ) 7,294 U.S. government notes 3,242 1 — 3,243 $ 40,767 $ 70 $ (83 ) $ 40,754
Summary of Securities with Gross Unrealized Loss Positions and Fair Values	The following tables present gross unrealized losses and fair values for those marketable securities that were in an unrealized loss position aggregated by investment category and the length of time that individual securities have been in a continuous loss position (in thousands): As of August 31, 2015 Less Than 12 Months 12 Months or Greater Total Fair Unrealized Fair Value Unrealized Fair Value Unrealized Asset-backed securities $ 1,018 $ (1 ) $ — $ — $ 1,018 $ (1 ) Corporate debt securities 13,846 (17 ) — — 13,846 (17 ) Foreign government bonds 207 (1 ) — — 207 (1 ) Mortgage-backed securities 2,219 (14 ) — — 2,219 (14 ) U.S. government agency securities 4,421 (33 ) — — 4,421 (33 ) $ 21,711 $ (66 ) $ — $ — $ 21,711 $ (66 ) As of February 28, 2015 Less Than 12 Months 12 Months or Greater Total Fair Unrealized Fair Value Unrealized Fair Value Unrealized Asset-backed securities $ 2,385 $ (4 ) $ — $ — $ 2,385 $ (4 ) Corporate debt securities 11,346 (13 ) — — 11,346 (13 ) Equity securities 978 (32 ) — — 978 (32 ) Mortgage-backed securities 1,923 (10 ) — — 1,923 (10 ) U.S. government agency securities 4,331 (24 ) — — 4,331 (24 ) $ 20,963 $ (83 ) $ — $ — $ 20,963 $ (83 )
Summary of Estimated Fair Value of Investments in Marketable Debt Securities	The following table summarizes the estimated fair value of our investments in marketable debt securities by contractual maturities (in thousands): As of Due in 1 year $ 13,738 Due in 1 year through 5 years 21,259 Due in 5 years through 10 years 580 Due after 10 years 4,242 $ 39,819
Summary of Change in Fair Value of Level 3 Contingent Consideration Amounts	The following table summarizes the change in fair value of our Level 3 contingent consideration amounts (in thousands): Balance as of February 28, 2015 $ 3,028 Acquisition addition 334 Total remeasurement recognized in earnings 147 Settlements (25 ) Balance as of August 31, 2015 $ 3,484
Summary of Assets or Liabilities Measured at Fair Value	Financial assets measured at fair value on a recurring basis are summarized below (in thousands): As of August 31, 2015 Level 1 Level 2 Level 3 Total Cash equivalents: Money market funds $ 52,281 $ — $ — $ 52,281 Marketable securities: Asset-backed securities $ — $ 4,959 $ — $ 4,959 Corporate debt securities $ — $ 21,607 $ — $ 21,607 Equity securities $ 4,247 $ — $ — $ 4,247 Foreign government bonds $ — $ 206 $ — $ 206 Mortgage-backed securities $ — $ 2,645 $ — $ 2,645 U.S. government agency securities $ — $ 7,516 $ — $ 7,516 U.S. government notes $ — $ 2,886 $ — $ 2,886 Other accrued liabilities (current): Contingent consideration $ — $ — $ 1,293 $ 1,293 Other long-term liabilities: Contingent consideration $ — $ — $ 2,191 $ 2,191 As of February 28, 2015 Level 1 Level 2 Level 3 Total Cash equivalents: Money market funds $ 54,186 $ — $ — $ 54,186 Marketable securities: Asset-backed securities $ — $ 4,845 $ — $ 4,845 Corporate debt securities $ — $ 21,245 $ — $ 21,245 Equity securities $ 1,216 $ — $ — $ 1,216 Foreign government bonds $ — $ 201 $ — $ 201 Mortgage-backed securities $ — $ 2,710 $ — $ 2,710 U.S. government agency securities $ — $ 7,294 $ — $ 7,294 U.S. government notes $ — $ 3,243 $ — $ 3,243 Derivative assets not designated (current): Foreign exchange contracts $ — $ 31 $ — $ 31 Other accrued liabilities (current): Contingent consideration $ — $ — $ 1,150 $ 1,150 Other long-term liabilities: Contingent consideration $ — $ — $ 1,878 $ 1,878
Inventories, Net	Inventories, net consisted of the following (in thousands): As of As of Raw materials $ 2,802 $ 2,455 Finished goods 3,448 2,729 Reserves (671 ) (730 ) $ 5,579 $ 4,454
Deferred Costs	Deferred costs consisted of the following (in thousands): As of As of Appliance $ 42,777 $ 41,052 Commissions 17,437 16,884 $ 60,214 $ 57,936
Property and Equipment, Net	Property and equipment, net consisted of the following (in thousands): As of As of Land $ 9,418 $ 9,354 Building 6,549 6,549 Computer hardware and software 20,023 17,860 Vehicles, machinery and equipment 4,089 3,546 Leasehold improvements 3,307 2,965 43,386 40,274 Accumulated depreciation and amortization (15,599 ) (12,435 ) $ 27,787 $ 27,839
Components of Accumulated Other Comprehensive Income (Loss), Net of Tax	The components of accumulated other comprehensive income (loss) (“AOCI”), net of tax, were as follows (in thousands): Foreign Unrealized Gains Total Balance as of February 28, 2015 $ (4,225 ) $ (8 ) $ (4,233 ) Other comprehensive income (loss) before reclassifications 324 1,122 1,446 Amounts reclassified from AOCI — (2 ) (2 ) Other comprehensive income (loss) 324 1,120 1,444 Balance as of August 31, 2015 $ (3,901 ) $ 1,112 $ (2,789 )

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Aug. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill are summarized as follows (in thousands): Balance as of February 28, 2015 $ 39,742 Goodwill acquired 336 Effect of foreign exchange rates (15 ) Balance as of August 31, 2015 $ 40,063
Schedule of Intangible Assets Subject to Amortization	Intangible assets subject to amortization are summarized as follows (in thousands): As of August 31, 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Value Acquired developed technology $ 28,944 $ (23,724 ) $ 5,220 Software license 400 (400 ) — Customer relationships 8,799 (6,360 ) 2,439 Patents 1,625 (1,151 ) 474 Trade name 519 (200 ) 319 Acquired developed software 200 (200 ) — $ 40,487 $ (32,035 ) $ 8,452 As of February 28, 2015 Gross Accumulated Net Acquired developed technology $ 28,799 $ (22,987 ) $ 5,812 Software license 400 (400 ) — Customer relationships 8,233 (6,032 ) 2,201 Patents 1,625 (1,058 ) 567 Trade name 513 (172 ) 341 Acquired developed software 200 (200 ) — $ 39,770 $ (30,849 ) $ 8,921

Stockholders' Deficit (Tables)

Stockholders' Deficit (Tables)	6 Months Ended
	Aug. 31, 2015
Equity [Abstract]
Schedule of Total Stock-Based Compensation Expense	Total stock-based compensation expense has been classified as follows in the accompanying condensed consolidated statements of operations (in thousands): Three Months Ended August 31, Six Months Ended August 31, 2015 2014 2015 2014 Cost of revenue $ 255 $ 73 $ 466 $ 125 Research and development 2,000 902 3,835 1,650 Sales and marketing 1,639 821 3,189 1,403 General and administrative 3,272 1,940 6,220 3,640 $ 7,166 $ 3,736 $ 13,710 $ 6,818

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Aug. 31, 2015
Segment Reporting [Abstract]
Schedule of Revenue by Geographic Region	Revenue by geographic region is presented as follows (in thousands): Three Months Ended Six Months Ended 2015 2014 2015 2014 North America $ 57,027 $ 50,219 $ 113,068 $ 98,538 United States 53,730 47,234 106,534 92,564 Other 3,297 2,985 6,534 5,974 Latin America 1,096 786 2,112 1,595 Asia-Pacific 4,850 4,503 9,505 8,990 EMEA 15,398 13,144 31,660 25,738 $ 78,371 $ 68,652 $ 156,345 $ 134,861

Net Income (Loss) Per Share (Ta

Net Income (Loss) Per Share (Tables)	6 Months Ended
	Aug. 31, 2015
Earnings Per Share [Abstract]
Calculation of Basic and Diluted Net Income (Loss) Per Share	The following table presents the calculation of basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended Six Months Ended 2015 2014 2015 2014 Net income (loss) $ (2,239 ) $ 738 $ (6,071 ) $ 889 Weighted-average shares used to compute net income (loss) per share, basic 53,270 51,667 53,133 51,412 Dilutive shares from stock options and RSUs — 2,076 — 2,263 Weighted-average shares used to compute net income (loss) per share, diluted 53,270 53,743 53,133 53,675 Net income (loss) per share, basic $ (0.04 ) $ 0.01 $ (0.11 ) $ 0.02 Net income (loss) per share, diluted $ (0.04 ) $ 0.01 $ (0.11 ) $ 0.02

Overview and Basis of Present24

Overview and Basis of Presentation - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Accounting Policies [Abstract]
Net gains (losses) from foreign exchange transactions	$ 0.1	$ (0.6)	$ (0.5)	$ (0.6)

Balance Sheet Information - Cas

Balance Sheet Information - Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015	Aug. 31, 2014	Feb. 28, 2014
Cash and Cash Equivalents [Abstract]
Cash	$ 121,402	$ 97,187
Money market funds	52,281	54,186
Total cash and cash equivalents	$ 173,683	$ 151,373	$ 156,559	$ 135,879

Balance Sheet Information - Mar

Balance Sheet Information - Marketable Securities (Detail) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, Amortized Cost	$ 42,959	$ 40,767
Marketable securities, Gross Unrealized Gains	1,173	70
Marketable securities, Gross Unrealized Losses	(66)	(83)
Marketable securities, Fair Value	44,066	40,754
Asset-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, Amortized Cost	4,951	4,846
Marketable securities, Gross Unrealized Gains	9	3
Marketable securities, Gross Unrealized Losses	(1)	(4)
Marketable securities, Fair Value	4,959	4,845
Corporate debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, Amortized Cost	21,621	21,241
Marketable securities, Gross Unrealized Gains	3	17
Marketable securities, Gross Unrealized Losses	(17)	(13)
Marketable securities, Fair Value	21,607	21,245
Equity securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, Amortized Cost	3,095	1,211
Marketable securities, Gross Unrealized Gains	1,152	37
Marketable securities, Gross Unrealized Losses		(32)
Marketable securities, Fair Value	4,247	1,216
Foreign government bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, Amortized Cost	207	201
Marketable securities, Gross Unrealized Losses	(1)
Marketable securities, Fair Value	206	201
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, Amortized Cost	2,657	2,716
Marketable securities, Gross Unrealized Gains	2	4
Marketable securities, Gross Unrealized Losses	(14)	(10)
Marketable securities, Fair Value	2,645	2,710
U.S. government agency securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, Amortized Cost	7,542	7,310
Marketable securities, Gross Unrealized Gains	7	8
Marketable securities, Gross Unrealized Losses	(33)	(24)
Marketable securities, Fair Value	7,516	7,294
U.S. government notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Marketable securities, Amortized Cost	2,886	3,242
Marketable securities, Gross Unrealized Gains		1
Marketable securities, Fair Value	$ 2,886	$ 3,243

Balance Sheet Information - Sum

Balance Sheet Information - Summary of Securities with Gross Unrealized Loss Positions and Fair Values (Detail) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	$ 21,711	$ 20,963
Less Than 12 Months, Unrealized Losses	(66)	(83)
12 Months or Greater, Fair Value	0	0
12 Months or Greater, Unrealized Losses	0	0
Total, Fair Value	21,711	20,963
Total, Unrealized Losses	(66)	(83)
Asset-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	1,018	2,385
Less Than 12 Months, Unrealized Losses	(1)	(4)
12 Months or Greater, Fair Value	0	0
12 Months or Greater, Unrealized Losses	0	0
Total, Fair Value	1,018	2,385
Total, Unrealized Losses	(1)	(4)
Corporate debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	13,846	11,346
Less Than 12 Months, Unrealized Losses	(17)	(13)
12 Months or Greater, Fair Value	0	0
12 Months or Greater, Unrealized Losses	0	0
Total, Fair Value	13,846	11,346
Total, Unrealized Losses	(17)	(13)
Foreign government bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	207
Less Than 12 Months, Unrealized Losses	(1)
12 Months or Greater, Fair Value	0
12 Months or Greater, Unrealized Losses	0
Total, Fair Value	207
Total, Unrealized Losses	(1)
Equity securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value		978
Less Than 12 Months, Unrealized Losses		(32)
12 Months or Greater, Fair Value		0
12 Months or Greater, Unrealized Losses		0
Total, Fair Value		978
Total, Unrealized Losses		(32)
Mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	2,219	1,923
Less Than 12 Months, Unrealized Losses	(14)	(10)
12 Months or Greater, Fair Value	0	0
12 Months or Greater, Unrealized Losses	0	0
Total, Fair Value	2,219	1,923
Total, Unrealized Losses	(14)	(10)
U.S. government agency securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	4,421	4,331
Less Than 12 Months, Unrealized Losses	(33)	(24)
12 Months or Greater, Fair Value	0	0
12 Months or Greater, Unrealized Losses	0	0
Total, Fair Value	4,421	4,331
Total, Unrealized Losses	$ (33)	$ (24)

Balance Sheet Information - Add

Balance Sheet Information - Additional Information (Detail) - USD ($) $ in Thousands	Feb. 28, 2015	Aug. 31, 2015	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Property, Plant and Equipment [Line Items]
Available-for-sale investments in unrealized loss position	$ 83	$ 66	$ 66		$ 66
Depreciation and amortization expense					4,469	$ 4,422
Investment to acquire equity	$ 1,300	$ 400
Proportionate share in investee's losses			(100)		(200)
Non-marketable Equity Securities [Member]
Property, Plant and Equipment [Line Items]
Percentage of ownership interest	24.00%
Property and equipment [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense			$ 1,700	$ 1,200	$ 3,300	$ 2,300

Balance Sheet Information - S29

Balance Sheet Information - Summary of Estimated Fair Value of Investments in Marketable Debt Securities (Detail) $ in Thousands	Aug. 31, 2015USD ($)
Available-for-sale Securities [Abstract]
Due in 1 year	$ 13,738
Due in 1 year through 5 years	21,259
Due in 5 years through 10 years	580
Due after 10 years	4,242
Total	$ 39,819

Balance Sheet Information - S30

Balance Sheet Information - Summary of Change in Fair Value of Level 3 Contingent Consideration Amounts (Detail) $ in Thousands	6 Months Ended
	Aug. 31, 2015USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	$ 3,028
Acquisition addition	334
Total remeasurement recognized in earnings	147
Settlements	(25)
Balance at end of period	$ 3,484

Balance Sheet Information - S31

Balance Sheet Information - Summary of Assets or Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	$ 39,819
Contingent consideration (current)	1,293	$ 1,150
Contingent consideration	2,191	1,878
Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	52,281	54,186
Asset-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	4,959	4,845
Corporate debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	21,607	21,245
Equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	4,247	1,216
Foreign government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	206	201
Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	2,645	2,710
U.S. government agency securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	7,516	7,294
U.S. government notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	2,886	3,243
Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets not designated (current)		31
Level 1 [Member] | Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	52,281	54,186
Level 1 [Member] | Equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	4,247	1,216
Level 2 [Member] | Asset-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	4,959	4,845
Level 2 [Member] | Corporate debt securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	21,607	21,245
Level 2 [Member] | Foreign government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	206	201
Level 2 [Member] | Mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	2,645	2,710
Level 2 [Member] | U.S. government agency securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	7,516	7,294
Level 2 [Member] | U.S. government notes [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable securities	2,886	3,243
Level 2 [Member] | Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets not designated (current)		31
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration (current)	1,293	1,150
Contingent consideration	$ 2,191	$ 1,878

Balance Sheet Information - Inv

Balance Sheet Information - Inventories, Net (Detail) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 2,802	$ 2,455
Finished goods	3,448	2,729
Reserves	(671)	(730)
Total inventories, net	$ 5,579	$ 4,454

Balance Sheet Information - Def

Balance Sheet Information - Deferred Costs (Detail) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Deferred Cost [Line Items]
Total deferred costs	$ 60,214	$ 57,936
Appliance [Member]
Deferred Cost [Line Items]
Total deferred costs	42,777	41,052
Commissions [Member]
Deferred Cost [Line Items]
Total deferred costs	$ 17,437	$ 16,884

Balance Sheet Information - Pro

Balance Sheet Information - Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 43,386	$ 40,274
Accumulated depreciation and amortization	(15,599)	(12,435)
Property and equipment, net	27,787	27,839
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	9,418	9,354
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6,549	6,549
Computer Hardware and Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	20,023	17,860
Vehicles, Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,089	3,546
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 3,307	$ 2,965

Balance Sheet Information - Com

Balance Sheet Information - Components of Accumulated Other Comprehensive Income (Loss), Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			$ (4,233)
Other comprehensive income (loss) before reclassifications			1,446
Amounts reclassified from AOCI			(2)
Other comprehensive income (loss)	$ (357)	$ (606)	1,444	$ (575)
Ending balance	(2,789)		(2,789)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(4,225)
Other comprehensive income (loss) before reclassifications			324
Other comprehensive income (loss)			324
Ending balance	(3,901)		(3,901)
Unrealized Gains (Losses) on Available-for-Sale Investments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(8)
Other comprehensive income (loss) before reclassifications			1,122
Amounts reclassified from AOCI			(2)
Other comprehensive income (loss)			1,120
Ending balance	$ 1,112		$ 1,112

Acquisition - Additional Inform

Acquisition - Additional Information (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Aug. 31, 2015USD ($)	Aug. 31, 2015USD ($)
Business Acquisition [Line Items]
Consideration attributed to goodwill		$ 336
Non-material Acquisition [Member]
Business Acquisition [Line Items]
Total consideration	$ 1,100
Estimated fair value for contingent consideration	300	300
Consideration attributed to intangible assets	700	$ 700
Consideration attributed to goodwill	$ 336
Customer Relationships [Member] | Non-material Acquisition [Member]
Business Acquisition [Line Items]
Weighted-average useful lives		7 years
Acquired Developed Technology [Member] | Non-material Acquisition [Member]
Business Acquisition [Line Items]
Weighted-average useful lives		1 year

Goodwill and Intangible Asset37

Goodwill and Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Detail) $ in Thousands	6 Months Ended
	Aug. 31, 2015USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Balance at beginning of period	$ 39,742
Goodwill acquired	336
Effect of foreign exchange rates	(15)
Balance at end of period	$ 40,063

Goodwill and Intangible Asset38

Goodwill and Intangible Assets - Schedule of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Aug. 31, 2015	Feb. 28, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 40,487	$ 39,770
Accumulated Amortization	(32,035)	(30,849)
Net Carrying Value	8,452	8,921
Acquired Developed Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	28,944	28,799
Accumulated Amortization	(23,724)	(22,987)
Net Carrying Value	5,220	5,812
Software License [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	400	400
Accumulated Amortization	(400)	(400)
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,799	8,233
Accumulated Amortization	(6,360)	(6,032)
Net Carrying Value	2,439	2,201
Patents [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,625	1,625
Accumulated Amortization	(1,151)	(1,058)
Net Carrying Value	474	567
Trade Name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	519	513
Accumulated Amortization	(200)	(172)
Net Carrying Value	319	341
Acquired Developed Software [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	200	200
Accumulated Amortization	$ (200)	$ (200)

Goodwill and Intangible Asset39

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014	Feb. 28, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Other intangible assets not subject to amortization	$ 296,000		$ 296,000		$ 296,000
Amortization expense	600,000	$ 1,100,000	1,200,000	$ 2,100,000
Amortization expense for the remainder of fiscal year 2016	1,300,000		1,300,000
Amortization expense for fiscal year 2017	2,300,000		2,300,000
Amortization expense for fiscal year 2018	1,900,000		1,900,000
Amortization expense for fiscal year 2019	1,000,000		1,000,000
Amortization expense for fiscal year 2020	800,000		800,000
Amortization expense thereafter	$ 1,200,000		$ 1,200,000

Stockholders' Deficit - Additio

Stockholders' Deficit - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	Jul. 31, 2015	Aug. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted are exercisable for periods		10 years
Employee Stock Purchase Plan, description		The ESPP consists of offering periods that are approximately six months in length and employees may purchase shares in each period at 85% of the lower of the Company's fair market value on the first trading day of each offering period or on the purchase date.
Employee Stock Purchase Plan, offering period	6 months
Employee Stock Purchase Plan, percentage	85.00%
Employee Stock Purchase Plan, expiration date		Jun. 15, 2035
Number of common stock shares reserved for issuance		750,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options and RSUs granted vesting period		4 years
Unrecognized compensation cost related to outstanding stock options		$ 21.4
Expected period for recognizing compensation expense		2 years 8 months 16 days
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options and RSUs granted vesting period		4 years
Expected period for recognizing compensation expense		3 years 26 days
Unrecognized compensation cost related to unvested RSUs		$ 40.3

Stockholders' Deficit - Schedul

Stockholders' Deficit - Schedule of Total Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 7,166	$ 3,736	$ 13,710	$ 6,818
Cost of Revenue [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	255	73	466	125
Research and Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	2,000	902	3,835	1,650
Sales and Marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,639	821	3,189	1,403
General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 3,272	$ 1,940	$ 6,220	$ 3,640

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Income Tax Disclosure [Abstract]
Income tax (provision) benefit	$ (2,030)	$ 292	$ (4,472)	$ (308)

Segment Information - Additiona

Segment Information - Additional Information (Detail)	6 Months Ended
	Aug. 31, 2015Segment
Segment Reporting [Abstract]
Number of reporting segment	1

Segment Information - Schedule

Segment Information - Schedule of Revenue by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Segment Reporting Information [Line Items]
Revenue	$ 78,371	$ 68,652	$ 156,345	$ 134,861
North America [Member]
Segment Reporting Information [Line Items]
Revenue	57,027	50,219	113,068	98,538
United States [Member]
Segment Reporting Information [Line Items]
Revenue	53,730	47,234	106,534	92,564
Other [Member]
Segment Reporting Information [Line Items]
Revenue	3,297	2,985	6,534	5,974
Latin America [Member]
Segment Reporting Information [Line Items]
Revenue	1,096	786	2,112	1,595
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Revenue	4,850	4,503	9,505	8,990
EMEA [Member]
Segment Reporting Information [Line Items]
Revenue	$ 15,398	$ 13,144	$ 31,660	$ 25,738

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($)	Sep. 21, 2015	May. 31, 2015	Aug. 31, 2015
Loss Contingencies [Line Items]
Settlement, date			2015-05
Settlement agreement, amount		$ (38,930)
Subsequent Event [Member]
Loss Contingencies [Line Items]
Settlement agreement, amount	$ 0

Net Income (Loss) Per Share - C

Net Income (Loss) Per Share - Calculation of Basic and Diluted Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Earnings Per Share [Abstract]
Net income (loss)	$ (2,239)	$ 738	$ (6,071)	$ 889
Weighted-average shares used to compute net income (loss) per share, basic	53,270	51,667	53,133	51,412
Dilutive shares from stock options and RSUs		2,076		2,263
Weighted-average shares used to compute net income (loss) per share, diluted	53,270	53,743	53,133	53,675
Net income (loss) per share, basic	$ (0.04)	$ 0.01	$ (0.11)	$ 0.02
Net income (loss) per share, diluted	$ (0.04)	$ 0.01	$ (0.11)	$ 0.02

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - Subsequent Event [Member] - USD ($) $ in Millions	Sep. 23, 2015	Sep. 30, 2015
Business Acquisition [Line Items]
Common stock repurchase authorization, maximum aggregate purchase price		$ 50
Common stock repurchase, description		In September 2015, our board of directors authorized a stock repurchase program. Under the program, we are authorized to repurchase shares of our common stock for an aggregate purchase price not to exceed $50.0 million through September 30, 2017. Although our board of directors has authorized the stock repurchase program, the stock repurchase program does not obligate us to repurchase any specific dollar amount or to acquire any specific number of shares.
Intronis, Inc., [Member]
Business Acquisition [Line Items]
Business acquisition agreement date	Sep. 23, 2015
Business acquisition payment in cash	$ 65
Business acquisition purchase price held in escrow	$ 7