Domo (DOMO) 10-Q 11 Sep 19 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jul. 31, 2019	Aug. 30, 2019
Class of Stock [Line Items]
Entity Registrant Name	Domo, Inc.
Entity Central Index Key	0001505952
Current Fiscal Year End Date	--01-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Current Reporting Status	Yes
Document Type	10-Q
Document Period End Date	Jul. 31, 2019
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Amendment Flag	false
Class A Common Stock
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		3,263,659
Class B Common Stock
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding		24,241,269

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2019	Jan. 31, 2019
Current assets:
Cash and cash equivalents	$ 97,939	$ 176,973
Short-term investments	35,927	0
Accounts receivable, net of allowances of $3,387 and $2,719 as of January 31, 2019 and July 31, 2019, respectively	31,136	48,421
Contract acquisition costs, net	11,349	10,425
Prepaid expenses and other current assets	13,617	10,935
Total current assets	189,968	246,754
Property and equipment, net	12,677	12,595
Contract acquisition costs, noncurrent, net	16,334	18,030
Intangible assets, net	4,108	4,415
Goodwill	9,478	9,478
Other assets	1,964	1,360
Total assets	234,529	292,632
Current liabilities:
Accounts payable	2,023	2,609
Accrued expenses and other current liabilities	40,856	48,139
Deferred revenue	87,616	88,959
Total current liabilities	130,495	139,707
Deferred revenue, noncurrent	3,687	4,943
Other liabilities, noncurrent	6,140	6,210
Long-term debt	99,113	97,245
Total liabilities	239,435	248,105
Commitments and contingencies
Stockholders' equity (deficit):
Preferred stock, $0.001 par value per share; 10,000 shares authorized as of January 31, 2019 and July 31, 2019; no shares issued and outstanding as of January 31, 2019 and July 31, 2019	0	0
Additional paid-in capital	973,473	956,145
Accumulated other comprehensive income	372	438
Accumulated deficit	(978,778)	(912,082)
Total stockholders' equity (deficit)	(4,906)	44,527
Total liabilities and stockholders' equity (deficit)	234,529	292,632
Class A Common Stock
Stockholders' equity (deficit):
Common stock	3	3
Class B Common Stock
Stockholders' equity (deficit):
Common stock	$ 24	$ 23

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jul. 31, 2019	Jan. 31, 2019
Allowance for doubtful accounts receivable	$ 2,719	$ 3,387
Convertible preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Convertible preferred stock, shares authorized (shares)	0	0
Convertible preferred stock, shares issued (shares)	0	0
Convertible preferred stock, shares outstanding (shares)	0	0
Preferred stock par value (in usd per share) Share	$ 0.001	$ 0.001
Preferred stock authorized (shares)	10,000,000	10,000,000
Preferred stock issued (shares)	0	0
Preferred stock outstanding (shares)	0	0
Class A Common Stock
Common stock par value (usd per share)	$ 0.001	$ 0.001
Common stock authorized (shares)	3,263,659	3,263,659
Common stock issued (shares)	3,263,659	3,263,659
Common stock outstanding (shares)	3,263,659	3,263,659
Class B Common Stock
Common stock par value (usd per share)	$ 0.001	$ 0.001
Common stock authorized (shares)	500,000,000	500,000,000
Common stock issued (shares)	24,235,000	23,435,000
Common stock outstanding (shares)	24,234,603	23,435,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Revenues [Abstract]
Total revenue	$ 41,660	$ 34,267	$ 82,458	$ 66,212
Cost of Revenue [Abstract]
Total cost of revenue	14,211	12,518	27,015	24,084
Gross profit	27,449	21,749	55,443	42,128
Operating Expenses [Abstract]
Sales and marketing	29,501	34,002	65,450	73,658
Research and development	17,046	20,919	34,145	39,983
General and administrative	9,275	10,207	17,292	14,851
Total operating expenses	55,822	65,128	116,887	128,492
Loss from operations	(28,373)	(43,379)	(61,444)	(86,364)
Other expense, net	(2,482)	(2,898)	(4,807)	(4,817)
Loss before income taxes	(30,855)	(46,277)	(66,251)	(91,181)
Provision for income taxes	305	107	445	710
Net loss	$ (31,160)	$ (46,384)	$ (66,696)	$ (91,891)
Net loss per share, basic and diluted (in usd per share)	$ (1.14)	$ (4.41)	$ (2.45)	$ (14.94)
Weighted-average number of shares used in computing net loss per share, basic and diluted (shares)	27,418	10,509	27,196	6,151
Subscription
Revenues [Abstract]
Total revenue	$ 34,873	$ 28,166	$ 69,264	$ 54,829
Cost of Revenue [Abstract]
Total cost of revenue	8,816	8,265	16,851	16,321
Professional services and other
Revenues [Abstract]
Total revenue	6,787	6,101	13,194	11,383
Cost of Revenue [Abstract]
Total cost of revenue	$ 5,395	$ 4,253	$ 10,164	$ 7,763

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Statement of Comprehensive Income [Abstract]
Net loss	$ (31,160)	$ (46,384)	$ (66,696)	$ (91,891)
Foreign currency translation adjustments	(8)	(55)	(66)	(92)
Unrealized gains on securities available for sale	(2)	0	0	0
Comprehensive loss	$ (31,170)	$ (46,439)	$ (66,762)	$ (91,983)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Class A Common Stock	Class B Common Stock	Common StockClass A Common Stock	Common StockClass B Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit
Convertible preferred stock, beginning balance (shares) at Jan. 31, 2018	14,098,937
Convertible preferred stock, beginning balance at Jan. 31, 2018	$ 693,158
Convertible preferred stock, ending balance (shares) at Apr. 30, 2018	14,098,937
Convertible preferred stock, ending balance at Apr. 30, 2018	$ 693,158
Stockholders (deficit) equity, beginning balance (shares) at Jan. 31, 2018				0	1,638,648
Stockholders (deficit) equity, beginning balance at Jan. 31, 2018	(721,964)			$ 0	$ 2	$ 35,301	$ 506	$ (757,773)
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward]
Exercise of stock options (shares)					16,221
Exercise of stock options	212					212
Stock-based compensation expense	2,076					2,076
Other comprehensive loss	(37)						(37)
Net loss	(45,507)							(45,507)
Stockholders (deficit) equity, ending balance (shares) at Apr. 30, 2018				0	1,654,869
Stockholders (deficit) equity, ending balance at Apr. 30, 2018	$ (765,220)			$ 0	$ 2	37,589	469	(803,280)
Convertible preferred stock, beginning balance (shares) at Jan. 31, 2018	14,098,937
Convertible preferred stock, beginning balance at Jan. 31, 2018	$ 693,158
Convertible preferred stock, ending balance (shares) at Jul. 31, 2018	0
Convertible preferred stock, ending balance at Jul. 31, 2018	$ 0
Stockholders (deficit) equity, beginning balance (shares) at Jan. 31, 2018				0	1,638,648
Stockholders (deficit) equity, beginning balance at Jan. 31, 2018	(721,964)			$ 0	$ 2	35,301	506	(757,773)
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward]
Net loss	(91,891)	$ (8,889)	$ (83,002)
Stockholders (deficit) equity, ending balance (shares) at Jul. 31, 2018				3,263,659	23,073,611
Stockholders (deficit) equity, ending balance at Jul. 31, 2018	$ 94,498			$ 3	$ 23	943,722	414	(849,664)
Convertible preferred stock, beginning balance (shares) at Apr. 30, 2018	14,098,937
Convertible preferred stock, beginning balance at Apr. 30, 2018	$ 693,158
Increase (Decrease) in Convertible Preferred Stock [Roll Forward]
Conversion of convertible preferred stock (shares)	(14,098,937)
Conversion of convertible preferred stock	$ (693,158)
Convertible preferred stock, ending balance (shares) at Jul. 31, 2018	0
Convertible preferred stock, ending balance at Jul. 31, 2018	$ 0
Stockholders (deficit) equity, beginning balance (shares) at Apr. 30, 2018				0	1,654,869
Stockholders (deficit) equity, beginning balance at Apr. 30, 2018	(765,220)			$ 0	$ 2	37,589	469	(803,280)
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward]
Initial public offering, net of offering costs of $4,201 (shares)					10,580,000
Initial public offering, net of offering costs of $4,201	202,426				$ 10	202,416
Conversion of convertible preferred stock (shares)				3,263,659	10,835,278
Conversion of convertible preferred stock	693,158			$ 3	$ 11	693,144
Exercise of stock options (shares)					3,464
Exercise of stock options	60					60
Stock-based compensation expense	10,387					10,387
Issuance of common stock warrants	126					126
Other comprehensive loss	(55)						(55)
Net loss	(46,384)	$ (5,182)	$ (41,202)					(46,384)
Stockholders (deficit) equity, ending balance (shares) at Jul. 31, 2018				3,263,659	23,073,611
Stockholders (deficit) equity, ending balance at Jul. 31, 2018	$ 94,498			$ 3	$ 23	943,722	414	(849,664)
Convertible preferred stock, beginning balance (shares) at Jan. 31, 2019	0
Convertible preferred stock, beginning balance at Jan. 31, 2019	$ 0
Convertible preferred stock, ending balance (shares) at Apr. 30, 2019	0
Convertible preferred stock, ending balance at Apr. 30, 2019	$ 0
Stockholders (deficit) equity, beginning balance (shares) at Jan. 31, 2019		3,263,659	23,435,000	3,263,659	23,434,542
Stockholders (deficit) equity, beginning balance at Jan. 31, 2019	44,527			$ 3	$ 23	956,145	438	(912,082)
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward]
Vesting of restricted stock units (shares)					357,565
Vesting of restricted stock units	0
Shares repurchased for tax withholdings on vesting of restricted stock (shares)					(20,726)
Shares repurchased for tax withholdings on vesting of restricted stock	(900)					(900)
Issuance of common stock under employee stock purchase plan (shares)					253,104
Issuance of common stock under employee stock purchase plan	4,519				$ 1	4,518
Exercise of stock options (shares)					61,844
Exercise of stock options	1,338					1,338
Stock-based compensation expense	7,653					7,653
Exercise of common stock warrants (shares)					3,130
Other comprehensive loss	(56)						(56)
Net loss	(35,536)							(35,536)
Stockholders (deficit) equity, ending balance (shares) at Apr. 30, 2019				3,263,659	24,089,459
Stockholders (deficit) equity, ending balance at Apr. 30, 2019	$ 21,545			$ 3	$ 24	968,754	382	(947,618)
Convertible preferred stock, beginning balance (shares) at Jan. 31, 2019	0
Convertible preferred stock, beginning balance at Jan. 31, 2019	$ 0
Convertible preferred stock, ending balance (shares) at Jul. 31, 2019	0
Convertible preferred stock, ending balance at Jul. 31, 2019	$ 0
Stockholders (deficit) equity, beginning balance (shares) at Jan. 31, 2019		3,263,659	23,435,000	3,263,659	23,434,542
Stockholders (deficit) equity, beginning balance at Jan. 31, 2019	$ 44,527			$ 3	$ 23	956,145	438	(912,082)
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward]
Exercise of stock options (shares)	66,772
Net loss	$ (66,696)	$ (8,005)	$ (58,691)
Stockholders (deficit) equity, ending balance (shares) at Jul. 31, 2019		3,263,659	24,234,603	3,263,659	24,234,603
Stockholders (deficit) equity, ending balance at Jul. 31, 2019	$ (4,906)			$ 3	$ 24	973,473	372	(978,778)
Convertible preferred stock, beginning balance (shares) at Apr. 30, 2019	0
Convertible preferred stock, beginning balance at Apr. 30, 2019	$ 0
Convertible preferred stock, ending balance (shares) at Jul. 31, 2019	0
Convertible preferred stock, ending balance at Jul. 31, 2019	$ 0
Stockholders (deficit) equity, beginning balance (shares) at Apr. 30, 2019				3,263,659	24,089,459
Stockholders (deficit) equity, beginning balance at Apr. 30, 2019	21,545			$ 3	$ 24	968,754	382	(947,618)
Increase (Decrease) in Stockholders' Equity (Deficit) [Roll Forward]
Vesting of restricted stock units (shares)					143,893
Vesting of restricted stock units	0
Shares repurchased for tax withholdings on vesting of restricted stock (shares)					(3,677)
Shares repurchased for tax withholdings on vesting of restricted stock	(112)					(112)
Exercise of stock options (shares)					4,928
Exercise of stock options	93					93
Stock-based compensation expense	4,738					4,738
Other comprehensive loss	(10)						(10)
Net loss	(31,160)	$ (3,709)	$ (27,451)					(31,160)
Stockholders (deficit) equity, ending balance (shares) at Jul. 31, 2019		3,263,659	24,234,603	3,263,659	24,234,603
Stockholders (deficit) equity, ending balance at Jul. 31, 2019	$ (4,906)			$ 3	$ 24	$ 973,473	$ 372	$ (978,778)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) (Parenthetical) $ in Thousands	3 Months Ended
	Jul. 31, 2019USD ($)
Statement of Stockholders' Equity [Abstract]
Offering costs	$ 4,201

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
Cash flows from operating activities
Net loss	$ (66,696)	$ (91,891)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	3,616	4,562
Amortization of contract acquisition costs	5,495	3,633
Stock-based compensation expense	12,266	12,259
Other, net	(3)	(2,576)
Change in operating assets and liabilities:
Accounts receivable, net	17,285	8,218
Contract acquisition costs	(4,986)	(5,782)
Prepaid expenses and other	(3,388)	(2,393)
Accounts payable	(558)	(1,288)
Accrued expenses and other liabilities	(5,854)	(891)
Deferred revenue	(2,599)	3,166
Net cash used in operating activities	(45,422)	(72,983)
Cash flows from investing activities
Purchases of property and equipment	(3,177)	(3,205)
Purchases of securities available for sale	(78,944)	0
Proceeds from maturities and redemption of securities available for sale	43,500	0
Net cash used in investing activities	(38,621)	(3,205)
Cash flows from financing activities
Proceeds from initial public offering, net of underwriting discounts and commissions	0	206,627
Payments of costs related to initial public offering	0	(3,413)
Proceeds from issuance of convertible preferred stock, net of issuance costs	0	(87)
Proceeds from shares issued in connection with employee stock purchase plan	4,518	0
Shares repurchased for tax withholdings on vesting of restricted stock	1,012	0
Debt proceeds, net of issuance costs	0	49,651
Proceeds from exercise of stock options	1,431	272
Principal payments on capital lease obligations	0	(44)
Net cash provided by financing activities	4,937	253,006
Effect of exchange rate changes on cash and cash equivalents	72	12
Net increase (decrease) in cash and cash equivalents	(79,034)	176,830
Cash and cash equivalents at beginning of period	176,973	61,972
Cash and cash equivalents at end of period	97,939	238,802
Supplemental disclosures of cash flow information
Cash paid for income taxes	17	436
Cash paid for interest	4,915	2,723
Non-cash investing and financing activities
Stock-based compensation capitalized as internal-use software	259	195
Deferred initial public offering costs in accounts payable and accrued liabilities	0	86
Issuance of warrants in connection with credit facility	$ 0	$ 166

Overview and Basis of Presentat

Overview and Basis of Presentation	6 Months Ended
	Jul. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Overview and Basis of Presentation	Overview and Basis of Presentation Description of Business and Basis of Presentation Domo, Inc. (the Company) provides a cloud-based platform that digitally connects everyone from the CEO to the frontline employee with all the data, systems and people in an organization, giving them access to real-time data and insights and allowing them to manage their business from their smartphones. The Company is incorporated in Delaware. The Company's headquarters is located in American Fork, Utah and the Company has subsidiaries in the United Kingdom, Australia, Japan, Hong Kong, Singapore, New Zealand, and Canada. The accompanying unaudited condensed consolidated financial statements, which include the accounts of the Company and its wholly owned subsidiaries, have been prepared in conformity with accounting principles generally accepted in the United States of America or GAAP. All intercompany balances and transactions have been eliminated in consolidation. The Company’s fiscal year ends on January 31. Unaudited Condensed Consolidated Financial Statements The accompanying condensed consolidated balance sheet as of July 31, 2019 , the condensed consolidated statements of operations, comprehensive loss, and convertible preferred stock and stockholders' equity (deficit) for the three and six months ended July 31, 2019 and the condensed consolidated statements of cash flows for the six months ended July 31, 2018 and 2019 are unaudited. The unaudited condensed consolidated financial statements have been prepared on a basis consistent with the annual consolidated financial statements and, in the opinion of management, reflect all adjustments necessary to state fairly the Company's financial position as of July 31, 2019 and its results of operations for the three and six months ended July 31, 2018 and 2019 and its cash flows for the six months ended July 31, 2018 and 2019 . The financial data and the other financial information disclosed in the notes to these condensed consolidated financial statements related to the three-month and six -month periods are also unaudited. The results of operations for the three and six months ended July 31, 2019 are not necessarily indicative of the results to be expected for the fiscal year ending January 31, 2020 or for any other future year or interim period. The unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto as of and for the year ended January 31, 2019 , included in the Company's Annual Report on Form 10-K. Stock Split On June 15, 2018, the Company amended its amended and restated certificate of incorporation to effect a 15-to-one reverse stock split of its common stock and convertible preferred stock. All of the share and per share information referenced throughout the condensed consolidated financial statements and notes to the condensed consolidated financial statements have been retroactively adjusted to reflect this reverse stock split. Use of Estimates The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates, judgments and assumptions that affect the amounts reported in the condensed consolidated financial statements and the accompanying notes. The Company bases its estimates on historical experience and on other assumptions that its management believes are reasonable under the circumstances. Actual results could differ from those estimates. The Company’s estimates and judgments include the determination of standalone selling prices for the Company’s services, which are used to determine revenue recognition for arrangements with multiple performance obligations; the amortization period for deferred contract acquisition costs; valuation of the Company’s stock-based compensation, including the underlying estimated fair value of common stock in periods prior to the date of the Company's IPO; useful lives of fixed assets; capitalization and estimated useful life of internal-use software; valuation estimates used when evaluating impairment of long-lived and intangible assets including goodwill; and the allowance for doubtful accounts. Foreign Currency The functional currencies of the Company’s foreign subsidiaries are the respective local currencies. The cumulative effect of translation adjustments arising from the use of differing exchange rates from period to period is included in accumulated other comprehensive income within the condensed consolidated balance sheets. Changes in the cumulative foreign translation adjustment are reported in the condensed consolidated statements of convertible preferred stock and stockholders’ (deficit) equity and the condensed consolidated statements of comprehensive loss. Transactions denominated in currencies other than the functional currency are remeasured at the end of the period and when the related receivable or payable is settled, which may result in transaction gains or losses. Foreign currency transaction gains and losses are included in other expense, net in the condensed consolidated statements of operations. All assets and liabilities denominated in a foreign currency are translated into U.S. dollars at the exchange rate on the balance sheet date. Revenue and expenses are translated at the average exchange rate during the period, and equity balances are translated using historical exchange rates. Segment Information The Company operates as one operating segment. The Company’s chief operating decision maker is its chief executive officer, who reviews financial information presented on a consolidated basis for purposes of making operating decisions, assessing financial performance and allocating resources.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jul. 31, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Cash and Cash Equivalents Cash and cash equivalents consist of cash on hand, money market funds and highly liquid investments purchased with an original maturity date of 90 days or less from the date of purchase. The fair value of cash equivalents approximated their carrying value as of January 31, 2019 and July 31, 2019 . Short-Term Investments The Company’s short-term investments are primarily comprised of commercial paper, U.S. treasury securities, asset-backed securities and corporate debt securities. The Company determines the appropriate classification of its short-term investments at the time of purchase and reevaluates such designation at each balance sheet date. The Company has classified and accounted for its short-term investments as available-for-sale securities as the Company may sell these securities at any time for use in its current operations or for other purposes, even prior to maturity. As a result, the Company classifies its short-term investments, including securities with stated maturities beyond twelve months, within current assets in the condensed consolidated balance sheets. The Company's short-term investments are classified as available-for-sale securities and are recorded at fair value each reporting period. Unrealized gains and losses on these short-term investments are reported as a separate component of accumulated other comprehensive income in the condensed consolidated balance sheets until realized. Interest income is reported within other expense, net in the condensed consolidated statements of operations. The Company periodically evaluates its short-term investments to assess whether those with unrealized loss positions are other-than-temporarily impaired. The Company considers various factors in determining whether to recognize an impairment charge, including the length of time the investment has been in a loss position, the extent to which the fair value is less than the Company’s cost basis, and the financial condition and near-term prospects of the investee. If the Company determines that the decline in an investment’s fair value is other-than-temporary, the difference is recognized as an impairment loss in the condensed consolidated statements of operations. Realized gains and losses are reported in other expense, net in the condensed consolidated statements of operations. Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable are recorded at the invoiced amount (net of allowances), do not require collateral, and do not bear interest. The Company’s payment terms generally provide that customers pay within 30 days of the invoice date. The Company maintains an allowance for doubtful accounts for amounts the Company does not expect to collect. In establishing the required allowance, management considers historical losses, current market conditions, customers’ financial condition, the age of the receivables, and current payment patterns. Account balances are written off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. Contract Acquisition Costs Contract acquisition costs, net are stated at cost net of accumulated amortization and primarily consist of deferred sales commissions, which are considered incremental and recoverable costs of obtaining a contract with a customer. Contract acquisition costs for initial contracts are deferred and then amortized on a straight-line basis over the period of benefit, which the Company has determined to be approximately four years . The period of benefit is determined by taking into consideration contractual terms, expected customer life, changes in the Company's technology and other factors. Contract acquisition costs for renewal contracts are not commensurate with contract acquisition costs for initial contracts and are recorded as expense when incurred if the period of benefit is one year or less. If the period of benefit is greater than one year, costs are deferred and then amortized on a straight-line basis over the period of benefit. Contract acquisition costs related to professional services and other performance obligations with a period of benefit of one year or less are recorded as expense when incurred. Amortization of contract acquisition costs is included in sales and marketing expenses in the accompanying condensed consolidated statements of operations. Amortization expense related to contract acquisition costs was $1.9 million and $2.8 million for the three months ended July 31, 2018 and 2019 , respectively, and $3.6 million and $5.5 million for the six months ended July 31, 2018 and 2019 , respectively. There was no impairment charge in relation to contract acquisition costs for the periods presented. Property and Equipment Property and equipment, net, are stated at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets or over the related lease terms (if shorter). Repairs and maintenance costs are expensed as incurred. The estimated useful lives of property and equipment are as follows: Computer equipment and software 2-3 years Furniture, vehicles and office equipment 3 years Leasehold improvements Shorter of remaining lease term or estimated useful life Capitalized Internal-Use Software Costs The Company capitalizes certain costs related to development of its platform incurred during the application development stage. Costs related to preliminary project activities and post-implementation activities are expensed as incurred. Maintenance and training costs are also expensed as incurred. Capitalized costs are included in property and equipment. Capitalized internal-use software is amortized as subscription cost of revenue on a straight-line basis over its estimated useful life, which is generally three years . Management evaluates the useful lives of these assets on an annual basis and tests for impairment whenever events or changes in circumstances occur that could impact the recoverability of these assets. Goodwill and Intangible Assets Goodwill represents the excess of the purchase price in a business combination over the fair value of net tangible and intangible assets acquired. Goodwill and indefinite-lived intangible assets are not amortized, but rather tested for impairment at least annually on November 1 or more often if and when circumstances indicate that the carrying value may not be recoverable. Finite-lived intangible assets are amortized over their useful lives. Goodwill is tested for impairment based on reporting units. The Company periodically reevaluates the business and has determined that it continues to operate in one segment, which is also considered the sole reporting unit. Therefore, goodwill is tested for impairment at the consolidated level. The Company reviews its long-lived assets, including property and equipment and finite-lived intangible assets, for impairment whenever an event or change in facts and circumstances indicates that their carrying amounts may not be recoverable. Recoverability of these assets is measured by comparing the carrying amount to the estimated undiscounted future cash flows expected to be generated. If the carrying amount exceeds the undiscounted cash flows, the assets are determined to be impaired and an impairment charge is recognized as the amount by which the carrying amount exceeds fair value. There was no goodwill acquired and no impairment charges for goodwill or long-lived assets recorded during the periods presented. Revenue Recognition The Company derives revenue primarily from subscriptions to its cloud-based platform and professional services. Revenue is recognized when control of these services is transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled to in exchange for those services, net of sales taxes. For sales through channel partners, the Company considers the channel partner to be the end customer for the purposes of revenue recognition as the Company's contractual relationships with channel partners do not depend on the sale of the Company's services to their customers and payment from the channel partner is not contingent on receiving payment from their customers. The Company's contractual relationships with channel partners do not allow returns, rebates, or price concessions. The price of subscriptions is generally fixed at contract inception and therefore, the Company's contracts do not contain a significant amount of variable consideration. Revenue recognition is determined through the following steps: • Identification of the contract, or contracts, with a customer • Identification of the performance obligations in the contract • Determination of the transaction price • Allocation of the transaction price to the performance obligations in the contract • Recognition of revenue when, or as, performance obligations are satisfied Subscription Revenue Subscription revenue primarily consists of fees paid by customers to access the Company’s cloud-based platform, including support services. The Company's subscription agreements generally have annual contractual terms and a smaller percentage have multi-year contractual terms. Revenue is recognized ratably over the related contractual term beginning on the date that the platform is made available to a customer. Access to the platform represents a series of distinct services as the Company continually provides access to and fulfills its obligation to the end customer over the subscription term. The series of distinct services represents a single performance obligation that is satisfied over time. The Company recognizes revenue ratably because the customer receives and consumes the benefits of the platform throughout the contract period. The Company's contracts are generally non-cancelable. Professional Services and Other Revenue Professional services revenue consists of implementation services sold with new subscriptions as well as professional services sold separately. Other revenue includes training and education. Professional services arrangements are billed in advance, and revenue from these arrangements is recognized as the services are provided, generally based on hours incurred. Training and education revenue is also recognized as the services are provided. Contracts with Multiple Performance Obligations Most of the Company's contracts with new customers contain multiple performance obligations, generally consisting of subscriptions and professional services. For these contracts, individual performance obligations are accounted for separately if they are distinct. The transaction price is allocated to the separate performance obligations on a relative standalone selling price basis. Standalone selling prices are determined based on historical standalone selling prices, taking into consideration overall pricing objectives, market conditions and other factors, including contract value, customer demographics and the number and types of users within the contract. Deferred Revenue The Company's contracts are typically billed annually in advance. Deferred revenue includes amounts collected or billed in excess of revenue recognized. Deferred revenue is recognized as revenue as the related performance obligations are satisfied. Deferred revenue that will be recognized during the succeeding twelve-month period is recorded as a current liability and the remaining portion is recorded as a noncurrent liability. Cost of Revenue Cost of subscription revenue consists primarily of third-party hosting services and data center capacity; employee-related costs directly associated with cloud infrastructure and customer support personnel, including salaries, benefits, bonuses and stock-based compensation; amortization expense associated with capitalized software development costs; depreciation expense associated with computer equipment and software; certain fees paid to various third parties for the use of their technology and services; and allocated overhead. Allocated overhead includes items such as information technology infrastructure, rent, and employee benefit costs. Cost of professional services and other revenue consists primarily of employee-related costs associated with these services, including stock-based compensation; third-party consultant fees; and allocated overhead. Advertising Costs Advertising costs are expensed as incurred. Advertising expense was $3.1 million and $2.0 million for the three months ended July 31, 2018 and 2019 , respectively, and $10.4 million and $4.3 million for the six months ended July 31, 2018 and 2019 , respectively. Research and Development Research and development expenses consist primarily of employee-related costs for the design and development of the Company's platform, contractor costs to supplement staff levels, third-party web services, consulting services, and allocated overhead. Research and development expenses, other than software development costs qualifying for capitalization, are expensed as incurred. Stock-Based Compensation The Company records stock-based compensation based on the grant date fair value of the awards, which include stock options and restricted stock units, and recognizes the fair value of those awards as expense using the straight-line method over the requisite service period of the award. For restricted stock units that contain performance conditions, the Company recognizes expense using the accelerated attribution method if it is probable the performance conditions will be met. The Company estimates the grant date fair value of stock options using the Black-Scholes option-pricing model. Stock-based compensation expense related to purchase rights issued under the 2018 Employee Stock Purchase Plan (ESPP) is based on the Black-Scholes option-pricing model fair value of the estimated number of awards as of the beginning of the offering period. Stock-based compensation expense is recognized using the straight-line method over the offering period. The determination of the grant date fair value of stock-based awards is affected by the estimated fair value of the Company's common stock as well as other assumptions and judgments, which are estimated as follows: • Fair Value Per Share of Common Stock . Because there was no public market for the Company's common stock prior to the IPO, the board of directors determined the common stock fair value at the grant date by considering numerous objective and subjective factors, including contemporaneous valuations of the Company’s common stock, actual operating and financial performance, market conditions, and performance of comparable publicly traded companies, business developments, the likelihood of achieving a liquidity event, and transactions involving preferred and common stock, among other factors. Subsequent to the IPO, the Company determines the fair value of common stock as of each grant date using the market closing price of the Company's Class B common stock on the date of grant. • Expected Term . The expected term is determined using the simplified method, which is calculated as the midpoint of the option’s contractual term and vesting period. The Company uses this method due to limited stock option exercise history. For the ESPP, the expected term is the beginning of the offering period to the end of each purchase period. • Expected Volatility . Since a public market for the Company's common stock did not exist prior to the IPO and, therefore, the Company does not have sufficient trading history of its common stock, expected volatility is estimated based on the volatility of similar publicly held companies over a period equivalent to the expected term of the awards. • Risk-free Interest Rate . The risk-free interest rate is determined using U.S. Treasury rates with a similar term as the expected term of the option. • Expected Dividend Yield . The Company has never declared or paid any cash dividends and does not presently plan to pay cash dividends in the foreseeable future. Consequently, the Company uses an expected dividend yield of zero. Income Taxes The Company accounts for income taxes in accordance with the liability method of accounting for income taxes. Under this method, the Company recognizes a liability or asset for the deferred income tax consequences of all temporary differences between the tax basis of assets and liabilities and their reported amounts in the condensed consolidated financial statements that will result in taxable or deductible amounts in future years when the reported amounts of the assets and liabilities are recovered or settled. These deferred income tax assets or liabilities are measured using the enacted tax rates that will be in effect when the differences are expected to affect taxable income. Valuation allowances are provided when it is more-likely-than-not that some or all of the deferred income tax assets may not be realized. In assessing the need for a valuation allowance, the Company has considered its historical levels of income, expectations of future taxable income and ongoing tax planning strategies. Because of the uncertainty of the realization of its deferred tax assets, the Company has a full valuation allowance for domestic net deferred tax assets, including net operating loss carryforwards, and tax credits related primarily to research and development. Realization of its deferred tax assets is dependent primarily upon future U.S. taxable income. Tax positions are recognized in the condensed consolidated financial statements when it is more-likely-than-not the position will be sustained upon examination by the tax authorities. The Company’s policy for recording interest and penalties related to income taxes, including uncertain tax positions, is to record such items as a component of the provision for income taxes. Concentrations of Risk and Significant Customers Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents, short-term investments and accounts receivable. The Company maintains its cash accounts with financial institutions where, at times, deposits exceed federal insurance limits. The Company invests its excess cash in money market funds and in short-term investments consisting of highly-rated debt securities. No single customer accounted for more than 10% of revenue for the three and six months ended July 31, 2018 and 2019 or more than 10% of accounts receivable as of January 31, 2019 and July 31, 2019 . The Company is primarily dependent upon third parties in order to meet the uptime and performance requirements of its customers. Any disruption of or interference with the Company's use of these third parties would impact operations. Net Loss per Share The Company computes net loss per share using the two-class method required for multiple classes of common stock and participating securities. The rights, including the liquidation and dividend rights, of the Class A common stock and Class B common stock are substantially identical, other than voting rights. Accordingly, the Class A common stock and Class B common stock share equally in the Company’s net losses. Before the IPO, the Company’s participating securities also included convertible preferred stock. The holders of convertible preferred stock did not have a contractual obligation to share in the Company’s losses, and as a result net losses were not allocated to these participating securities. Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by dividing net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period increased by common shares that could be issued upon conversion or exercise of other outstanding securities to the extent those additional common shares would be dilutive. The dilutive effect of potentially dilutive securities is reflected in diluted net loss per share by application of the treasury stock method. During periods when the Company is in a net loss position, basic net loss per share is the same as diluted net loss per share as the effects of potentially dilutive securities are anti-dilutive. Recently Issued Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which requires lessees to record most leases on the balance sheet and recognize the expenses on the income statement in a manner similar to current practice. ASU 2016-02 states that a lessee would recognize a lease liability for the obligation to make lease payments and a right-to-use asset for the right to use the underlying asset for the lease term. The Company expects to adopt this standard for the year ending January 31, 2021, with interim periods being presented under the new standard beginning with the first quarter of the year ending January 31, 2022. The Company is currently evaluating the impact to its condensed consolidated financial statements and related disclosures, but expects assets and liabilities related to leases to increase as a result of adopting this standard. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326) , which requires the measurement and recognition of expected credit losses for certain financial instruments, which includes the Company's accounts receivable and available-for-sale debt securities. ASU 2016-13 replaces the existing incurred loss impairment model with an expected loss methodology, which will result in more timely recognition of credit losses. For available-for-sale debt securities, credit losses should be recorded through an allowance for credit losses. ASU 2016-13 becomes effective for the Company for the fiscal year beginning February 1, 2021, assuming it remains an emerging growth company. The standard requires a cumulative effect adjustment to the balance sheet as of the beginning of the first reporting period in which the guidance is effective. The Company is evaluating the impact of the adoption of ASU 2016-13 on its condensed consolidated financial statements.

Cash, Cash Equivalents, and Sho

Cash, Cash Equivalents, and Short-Term Investments	6 Months Ended
	Jul. 31, 2019
Cash and Cash Equivalents [Abstract]
Cash, Cash Equivalents and Short-Term Investments	Cash, Cash Equivalents and Short-Term Investments The amortized cost, unrealized gain (loss) and estimated fair value of the Company’s cash equivalents and short-term investments as of January 31, 2019 and July 31, 2019 were as follows (in thousands): January 31, 2019 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value Cash $ 5,975 $ — $ — $ 5,975 Cash equivalents: Money market funds 170,998 — — 170,998 Total cash and cash equivalents $ 176,973 $ — $ — $ 176,973 July 31, 2019 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value Cash $ 11,096 $ — $ — $ 11,096 Cash equivalents: Money market funds 79,846 — — 79,846 Reverse repurchase agreements 5,000 5,000 Commercial paper 1,997 — — 1,997 Total cash and cash equivalents $ 97,939 $ — $ — $ 97,939 Short-term investments: Commercial paper $ 19,943 $ — $ — $ 19,943 U.S. treasury securities 4,993 1 — 4,994 Asset-backed securities 4,996 — — 4,996 Corporate debt securities 5,995 — (1 ) 5,994 Total short-term investments 35,927 1 (1 ) 35,927 Total cash, cash equivalents and short-term investments $ 133,866 $ 1 $ (1 ) $ 133,866 All short-term investments were designated as available-for-sale securities and had contractual maturities due within less than one year as of July 31, 2019 . The Company had no short-term investments as of January 31, 2019 . The Company had one short-term investment in an unrealized loss position as of July 31, 2019 . There were no material gross unrealized gains or losses from available-for-sale securities and no realized gains or losses from available-for-sale securities that were reclassified out of accumulated other comprehensive income for the three months ended July 31, 2019 . For available-for-sale debt securities that have unrealized losses, the Company evaluates whether (1) it has the intention to sell any of these investments and (2) whether it is not more likely than not that it will be required to sell any of these available-for-sale debt securities before recovery of the entire amortized cost basis. Based on this evaluation, the Company determined that there were no other-than-temporary impairments associated with short-term investments as of July 31, 2019 .

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jul. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Assets Measured at Fair Value on a Recurring Basis Financial instruments recorded at fair value in the financial statements are categorized as follows: • Level 1: Observable inputs that reflect quoted prices for identical assets or liabilities in active markets. • Level 2: Observable inputs, other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3: Unobservable inputs reflecting management's assumptions incorporated in valuation techniques used to determine fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available. The following table summarizes the assets measured at fair value on a recurring basis as of January 31, 2019 and July 31, 2019 by level within the fair value hierarchy (in thousands): January 31, 2019 Level 1 Level 2 Level 3 Total Cash equivalents: Money market funds $ 170,998 $ — $ — $ 170,998 July 31, 2019 Level 1 Level 2 Level 3 Total Cash equivalents: Money market funds $ 79,846 $ — $ — $ 79,846 Reverse repurchase agreements — 5,000 — 5,000 Commercial paper — 1,997 — 1,997 Total cash equivalents $ 79,846 $ 6,997 $ — $ 86,843 Short-term investments: Commercial paper $ — $ 19,943 $ — $ 19,943 U.S. treasury securities 4,994 — — 4,994 Asset-backed securities — 4,996 — 4,996 Corporate debt securities — 5,994 — 5,994 Total short-term investments 4,994 30,933 — 35,927 Total cash equivalents and short-term investments $ 84,840 $ 37,930 $ — $ 122,770 During the three and six months ended July 31, 2018 and 2019 , the Company had no transfers between levels of the fair value hierarchy of its assets and liabilities measured at fair value. Fair Value of Other Financial Instruments The carrying amounts of certain financial instruments, including cash held in banks, accounts receivable, accounts payable, accrued liabilities, and other liabilities approximate fair value due to their short-term maturities and are excluded from the fair value tables above.

Property and Equipment

Property and Equipment	6 Months Ended
	Jul. 31, 2019
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment Property and equipment, net consisted of the following (in thousands): As of January 31, As of July 31, 2019 2019 Computer equipment and software $ 16,575 $ 5,762 Capitalized internal-use software development costs 18,140 21,326 Leasehold improvements 2,849 944 Furniture, vehicles and office equipment 2,537 855 40,101 28,887 Less accumulated depreciation and amortization (27,506 ) (16,210 ) $ 12,595 $ 12,677 Depreciation and amortization expense related to property and equipment was $2.3 million and $1.7 million for the three months ended July 31, 2018 and 2019 , respectively, and $4.5 million and $3.3 million for the six months ended July 31, 2018 and 2019 , respectively. The Company capitalized $1.6 million and $1.6 million in software development costs during the three months ended July 31, 2018 and 2019 , respectively, and $2.9 million and $3.2 million during the six months ended July 31, 2018 and 2019 , respectively. Amortization of capitalized software development costs was $1.0 million and $1.0 million for the three months ended July 31, 2018 and 2019 , respectively, and $1.9 million and $1.8 million for the six months ended July 31, 2018 and 2019 , respectively.

Intangible Assets

Intangible Assets	6 Months Ended
	Jul. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets Intangible assets consisted of the following (in thousands): As of January 31, As of July 31, 2019 2019 Intellectual property excluding patents $ 2,289 $ 2,289 Software licenses 1,603 1,603 Patents 950 950 4,842 4,842 Less accumulated amortization (427 ) (734 ) $ 4,415 $ 4,108 Amortization expense related to intangible assets was $20,000 and $153,000 for the three months ended July 31, 2018 and 2019 , respectively, and $40,000 and $307,000 for the six months ended July 31, 2018 and 2019 , respectively. Intellectual property excluding patents is considered an indefinite-lived asset due to the fact that it is renewable in perpetuity. Software licenses are amortized over an estimated useful life of three years. The patents were acquired and are being amortized over a weighted-average remaining useful life of approximately 8 years.

Accrued Expenses and Other Curr

Accrued Expenses and Other Current Liabilities	6 Months Ended
	Jul. 31, 2019
Payables and Accruals [Abstract]
Accrued Expenses and Other Current Liabilities	Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities consisted of the following (in thousands): As of January 31, As of July 31, 2019 2019 Accrued payroll taxes $ 12,251 $ 9,911 Accrued expenses 8,688 8,809 Accrued payroll and benefits 6,142 7,722 Accrued bonus 5,338 5,253 Employee stock purchase plan liability 3,848 2,763 Accrued commissions 6,495 2,554 Sales and other taxes payable 1,409 1,582 Other accrued liabilities 3,968 2,262 $ 48,139 $ 40,856

Deferred Revenue and Performanc

Deferred Revenue and Performance Obligations	6 Months Ended
	Jul. 31, 2019
Revenue from Contract with Customer [Abstract]
Deferred Revenue and Performance Obligations	Deferred Revenue and Performance Obligations Deferred Revenue Significant changes in the Company's deferred revenue balance for the six months ended July 31, 2019 were as follows (in thousands): Balance as of January 31, 2019 $ 93,902 Revenue recognized that was included in the deferred revenue balance at the beginning of the period: Subscription $ (53,213 ) Professional services and other (4,000 ) Total (57,213 ) Increase due to billings excluding amounts recognized as revenue during the period 54,614 Balance as of July 31, 2019 $ 91,303 Transaction Price Allocated to Remaining Performance Obligations Transaction price allocated to remaining performance obligations represents the remaining amount of revenue the Company expects to recognize from existing noncancelable contracts, whether billed or unbilled. As of July 31, 2019 , approximately $187.3 million of revenue was expected to be recognized from remaining performance obligations for subscription contracts. The Company expects to recognize approximately $69.0 million of this amount during the year ending January 31, 2020, with an additional $71.4 million being recognized during the year ending January 31, 2021, and the balance recognized thereafter. As of July 31, 2019 , approximately $13.3 million of revenue was expected to be recognized from remaining performance obligations for professional services and other contracts, $9.4 million of which is expected to be recognized during the year ending January 31, 2020, and the balance recognized thereafter. Geographic Information Revenue by geographic area is determined by the billing address of the customer. The following table sets forth revenue by geographic area (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2018 2019 2018 2019 United States $ 26,364 $ 30,947 $ 51,483 $ 61,193 Japan 2,869 4,091 5,507 8,310 Other 5,034 6,622 9,222 12,955 Total $ 34,267 $ 41,660 $ 66,212 $ 82,458 Percentage of revenue by geographic area: United States 77 % 74 % 78 % 74 % Japan 8 10 8 10 Other 15 16 14 16 Other than the United States and Japan, no other individual country exceeded 10% of total revenue for the three and six months ended July 31, 2018 and 2019 . As of July 31, 2019 , substantially all of the Company’s property and equipment was located in the United States.

Geographic Information

Geographic Information	6 Months Ended
	Jul. 31, 2019
Revenue from Contract with Customer [Abstract]
Geographic Information	Deferred Revenue and Performance Obligations Deferred Revenue Significant changes in the Company's deferred revenue balance for the six months ended July 31, 2019 were as follows (in thousands): Balance as of January 31, 2019 $ 93,902 Revenue recognized that was included in the deferred revenue balance at the beginning of the period: Subscription $ (53,213 ) Professional services and other (4,000 ) Total (57,213 ) Increase due to billings excluding amounts recognized as revenue during the period 54,614 Balance as of July 31, 2019 $ 91,303 Transaction Price Allocated to Remaining Performance Obligations Transaction price allocated to remaining performance obligations represents the remaining amount of revenue the Company expects to recognize from existing noncancelable contracts, whether billed or unbilled. As of July 31, 2019 , approximately $187.3 million of revenue was expected to be recognized from remaining performance obligations for subscription contracts. The Company expects to recognize approximately $69.0 million of this amount during the year ending January 31, 2020, with an additional $71.4 million being recognized during the year ending January 31, 2021, and the balance recognized thereafter. As of July 31, 2019 , approximately $13.3 million of revenue was expected to be recognized from remaining performance obligations for professional services and other contracts, $9.4 million of which is expected to be recognized during the year ending January 31, 2020, and the balance recognized thereafter. Geographic Information Revenue by geographic area is determined by the billing address of the customer. The following table sets forth revenue by geographic area (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2018 2019 2018 2019 United States $ 26,364 $ 30,947 $ 51,483 $ 61,193 Japan 2,869 4,091 5,507 8,310 Other 5,034 6,622 9,222 12,955 Total $ 34,267 $ 41,660 $ 66,212 $ 82,458 Percentage of revenue by geographic area: United States 77 % 74 % 78 % 74 % Japan 8 10 8 10 Other 15 16 14 16 Other than the United States and Japan, no other individual country exceeded 10% of total revenue for the three and six months ended July 31, 2018 and 2019 . As of July 31, 2019 , substantially all of the Company’s property and equipment was located in the United States.

Credit Facility

Credit Facility	6 Months Ended
	Jul. 31, 2019
Debt Disclosure [Abstract]
Credit Facility	Credit Facility In December 2017, the Company entered into an $80.0 million credit facility and drew $50.0 million at closing, which was scheduled to mature on January 1, 2021. The Company had until April 30, 2018 to request an additional term loan of up to $30.0 million under the credit facility. In April 2018, the Company entered into an amendment to this credit facility pursuant to which the Company was able to incur an additional $20.0 million in term loan borrowings, for a total availability of $100.0 million under the amended facility. The Company drew the remaining $50.0 million during April 2018, which was scheduled to mature on May 1, 2021. The credit facility is secured by substantially all of the Company's assets. Under the amended credit facility, the Company was required to pay a $2.0 million fee upon the earlier of (1) the closing of a transaction in which the Company was acquired by a third party and (2) December 4, 2027. The obligation to pay this $2.0 million fee terminated upon the closing of the IPO. In January 2019, the Company entered into an amendment to this credit facility which extended the maturity date for both outstanding loans to October 1, 2022. The amendment also revised the maximum debt ratio financial covenant and increased the amount of the closing fee. Each term loan under the credit facility requires interest-only payments until the maturity date. A portion of the interest that accrues on the outstanding principal of each term loan is payable in cash on a monthly basis, which portion accrues at a floating rate equal to the greater of (1) 7% and (2) three-month LIBOR plus 5.5% per year. This interest rate was approximately 7.9% as of July 31, 2019 . In addition, a portion of the interest that accrues on the outstanding principal of each term loan is capitalized and added to the principal amount of the outstanding term loan on a monthly basis, which portion accrues at a fixed rate equal to 2.5% per year. During the three months ended July 31, 2018 and 2019 , $0.3 million and $0.7 million of interest was capitalized, respectively, and $0.7 million and $1.3 million of interest was capitalized during the six months ended July 31, 2018 and 2019 , respectively. The amended credit facility requires a closing fee of $7.0 million to be paid on the earliest of (1) the date the term loan is prepaid, (2) the term loan maturity date, which is October 1, 2022, and (3) the date the term loan becomes due and payable. Due to the long-term nature of the closing fee, it was recorded at present value as an increase to other liabilities, noncurrent and an increase to debt issuance costs. The closing fee liability will be accreted to its full value over the term of the loan, with such accretion recorded as interest expense in other income (expense), net in the condensed consolidated statements of operations. Debt issuance costs are presented as an offset to the outstanding principal balance of the term loans on the condensed consolidated balance sheets and are being amortized as interest expense in other income (expense), net in the condensed consolidated statements of operations over the term of the loan using the effective interest rate method. The balances in long-term debt consisted of the following: As of January 31, As of July 31, 2019 2019 Principal $ 102,494 $ 103,789 Less: unamortized debt issuance costs (5,249 ) (4,676 ) Net carrying amount $ 97,245 $ 99,113 The $100.0 million credit facility as amended contains customary conditions to borrowing, events of default and covenants, including covenants that restrict the Company's ability to dispose of assets, make material changes to the nature, control or location of the business, merge with or acquire other entities, incur indebtedness or encumbrances, make distributions to holders of the Company's capital stock, make certain investments or enter into transactions with affiliates. In addition, the Company is required to comply with a financial covenant based on the ratio of outstanding indebtedness to annualized recurring revenue. Under the amended facility, the minimum ratio is 0.80 on July 31, 2019 and October 31, 2019; 0.75 on January 31, 2020 and April 30, 2020; 0.70 on July 31, 2020 and October 31, 2020; 0.65 on January 31, 2021 and April 30, 2021; and 0.60 on July 31, 2021 through the maturity date. The credit facility defines annualized recurring revenue as four times the Company's aggregate revenue for the immediately preceding quarter (net of recurring discounts and discounts for periods greater than one year) less the annual contract value of any customer contracts pursuant to which the Company was advised during such quarter would not be renewed at the end of the current term plus the annual contract value of existing customer contract increases during such quarter. This covenant is measured quarterly on a three -month trailing basis. Upon the occurrence of an event of default, such as non-compliance with covenants, any outstanding principal, interest and fees become due immediately. The Company was in compliance with the covenant terms of the credit facility at January 31, 2019 and July 31, 2019 . The Company incurred interest expense of $3.1 million and $3.2 million for the three months ended July 31, 2018 and 2019 , respectively, and $4.8 million and $6.3 million for the six months ended July 31, 2018 and 2019 , respectively. Stock Warrants In connection with the credit facility described above, in December 2017 the Company issued fully vested warrants to purchase 28,462 shares of Series D-2 convertible preferred stock (Series D-2 warrants) with an exercise price of $126.47 per share. The fair value of the Series D-2 warrants at the time of issuance was recorded as an increase to debt issuance costs. In connection with the April 2018 amendment, the Series D-2 warrants were amended to warrants to purchase 66,664 shares of Class B common stock with an exercise price of $45.00 per share (common warrants). Upon execution of the April 2018 amendment, unamortized debt issuance costs related to the Series D-2 warrants were adjusted based on the difference in fair value of the Series D-2 warrants and the common warrants at the time of the April 2018 amendment. In connection with the January 2019 amendment to the credit facility, the common warrants were amended to be exercisable for an aggregate of 125,000 shares of Class B common stock at an exercise price of $17.8736 per share (amended common warrants). Upon execution of the January 2019 amendment, unamortized debt issuance costs related to the common warrants were adjusted based on the difference in fair value of the common warrants and the amended common warrants at the time of the January 2019 amendment. See Note 12 for further details regarding stock warrants.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jul. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation Liabilities for loss contingencies arising from claims, assessments, litigation, fines, and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred. The Company is involved in legal proceedings from time to time arising in the normal course of business. As of January 31, 2019 and July 31, 2019 , there were no significant outstanding claims against the Company. Warranties and Indemnification The Company’s subscription services are generally warranted to perform materially in accordance with the terms of the applicable customer service order under normal use and circumstances. Additionally, the Company’s arrangements generally include provisions for indemnifying customers against liabilities if its subscription services infringe a third party’s intellectual property rights. Furthermore, the Company may also incur liabilities if it breaches the security or confidentiality obligations in its arrangements. To date, the Company has not incurred significant costs and has not accrued a liability in the accompanying condensed consolidated financial statements as a result of these obligations. The Company has entered into service-level agreements with some of its customers defining levels of uptime reliability and performance and permitting those customers to receive credits for prepaid amounts related to unused subscription services if the Company fails to meet certain of the defined service levels. In very limited instances, the Company allows customers to early terminate their agreements if the Company repeatedly or significantly fails to meet those levels. If the Company repeatedly or significantly fails to meet contracted upon service levels, a contract may require a refund of prepaid unused subscription fees. To date, the Company has not experienced any significant failures to meet defined levels of uptime reliability and performance as set forth in its agreements and, as a result, the Company has not accrued any liabilities related to these agreements in the condensed consolidated financial statements. Operating Leases The Company has entered into noncancelable operating lease arrangements primarily for office space with various expiration dates through 2027. Certain of the leases include periods of free rent beginning with the lease effective date and increasing rental rates over the term of the leases. The Company recognizes rent expense on a straight-line basis over the lease period and has accrued for rent expense incurred but not paid. Rent expense under operating leases totaled $1.6 million and $1.7 million for the three months ended July 31, 2018 and 2019 , respectively, and $3.2 million and $3.4 million for the six months ended July 31, 2018 and 2019 , respectively. Other Purchase Commitments The Company has also entered into certain noncancelable contractual commitments related to cloud infrastructure services in the ordinary course of business. There have been no material changes in these commitments as disclosed in the Annual Report on Form 10-K.

Stockholders' Equity (Deficit)

Stockholders' Equity (Deficit)	6 Months Ended
	Jul. 31, 2019
Equity [Abstract]
Stockholders' Equity (Deficit)	Stockholders' Equity (Deficit) Preferred Stock The Company's Board of Directors has the authority, without further action by the Company's stockholders, to issue up to 10,000,000 shares of preferred stock in one or more series and to fix the rights, preferences, and privileges thereof, including voting rights. As of January 31, 2019 and July 31, 2019 , no shares of preferred stock were issued and outstanding. Common Stock The Company has two classes of common stock, Class A and Class B. Each share of Class A common stock is entitled to 40 votes per share and is convertible at any time into one share of Class B common stock. Each share of Class A common stock will convert automatically into one share of Class B common stock upon any transfer, whether or not for value. Each share of Class B common stock is entitled to one vote per share. Holders of Class A common stock and Class B common stock vote together as a single class on all matters (including the election of directors) submitted to a vote of stockholders, unless otherwise required by law or the Company's certificate of incorporation. Subject to preferences that may be applicable to any then-outstanding preferred stock, holders of Class A common stock and Class B common stock are entitled to receive dividends, if any, as may be declared by the Company's board of directors. At January 31, 2019 and July 31, 2019 , there were 3,263,659 shares of Class A common stock authorized. There were 3,263,659 shares of Class A common stock issued and outstanding at January 31, 2019 and July 31, 2019 . At January 31, 2019 and July 31, 2019 , there were 500,000,000 shares of Class B common stock authorized and 23,434,542 and 24,234,603 shares of Class B common stock issued and outstanding, respectively. Class B Common Stock Warrants In connection with the amendment to the credit facility that occurred in April 2018, the warrants to purchase 28,462 shares of Series D-2 convertible preferred stock described in Note 10 were amended to warrants to purchase 66,664 shares of Class B common stock at an exercise price equal to $45.00 per share. The warrants are exercisable at any time prior to expiration, which was to occur on the earlier of the third anniversary of the IPO or December 2027. Due to the exercise price-related contingency that existed with the Class B common stock warrants, they were being accounted for as a liability and were included in other liabilities, noncurrent on the consolidated balance sheets. The liability was revalued each reporting period until the contingency was resolved and the change in fair value was recorded in other income (expense), net. The contingency was resolved on the effective date of the Company's IPO, at which time the liability was remeasured to fair value and the remaining liability balance was reclassified to additional paid-in capital within stockholders' equity. In connection with the January 2019 amendment to the credit facility, the warrants to purchase 66,664 shares of Class B common stock were amended to be exercisable for an aggregate of 125,000 shares of Class B common stock at an exercise price of $17.8736 per share. The warrants are exercisable at any time prior to expiration, which occurs on June 28, 2021 (the third anniversary of the IPO). The difference in the fair value of the Class B common stock warrants at the time of the amendment to the credit facility in January 2019 associated with the increase in shares and the lower exercise price was recorded as an adjustment to additional paid-in capital and debt issuance costs. In connection with a line of credit signed in July 2016, the Company issued a warrant to purchase 3,333 shares of Class B common stock with a strike price of $34.35 per share. The warrant expires ten years from the date of issuance. In connection with a loan signed in November 2011 and for which the last principal payment was made in September 2015, the Company issued a warrant to purchase 3,729 shares of Class B common stock with a strike price of $4.80 per share. The warrant expires ten years from the date of issuance. This warrant was net exercised in February 2019, resulting in the issuance of 3,130 shares of Class B common stock. At January 31, 2019 , all warrants were outstanding and exercisable. At July 31, 2019 , all warrants were outstanding and exercisable with the exception of the warrant exercised in February 2019.

Equity Incentive Plans

Equity Incentive Plans	6 Months Ended
	Jul. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Equity Incentive Plans	Equity Incentive Plans In April 2011, the Company established the 2011 Equity Incentive Plan (2011 Plan), which was amended in September 2011 to provide for the issuance of stock options and other stock-based awards. In June 2018, the Company adopted the 2018 Equity Incentive Plan (2018 Plan). The 2018 Plan provides for the grant of incentive and nonstatutory stock options, restricted stock, RSUs, stock appreciation rights, performance units, and performance shares to employees, consultants, and members of the Company's board of directors. The number of shares available for issuance under the 2018 Plan includes an annual increase on the first day of each fiscal year equal to the least of: (1) 3,500,000 shares; (2) 5% of the outstanding shares of Class A and Class B common stock as of the last day of the immediately preceding fiscal year; and ( 3) such other amount as the Company's board of directors may determine no later than the last day of the immediately preceding year . During the six months ended July 31, 2019 , the number of shares available for grant under the 2018 Plan was increased by 1,334,910 shares. As of July 31, 2019 , there were 5,139,474 shares available for grant under the 2018 Plan. In connection with the IPO, the 2011 Plan was terminated. With the establishment of the 2018 Plan, the Company no longer grants equity-based awards under the 2011 Plan and any shares that expire, terminate, are forfeited or repurchased by the Company, or are withheld by the Company to cover tax withholding obligations, under the 2011 Plan, will become available for future grant under the 2018 Plan. The Company recognized stock-based compensation expense related to its equity incentive plans as follows (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2018 2019 2018 2019 Cost of revenue: Subscription $ 55 $ 67 $ 70 $ 190 Professional services and other 70 60 78 153 Sales and marketing 3,744 2,041 4,049 6,049 Research and development 2,993 1,294 3,476 3,359 General and administrative 3,330 1,182 4,595 2,420 Interest expense (26 ) 47 (9 ) 95 Total $ 10,166 $ 4,691 $ 12,259 $ 12,266 Stock Options Stock options typically vest over a four -year period and have a term of ten years from the date of grant. The weighted-average grant-date fair value of stock options granted was $14.95 per share for the six months ended July 31, 2019 . No stock options were granted during the three and six months ended July 31, 2018 and the three months ended July 31, 2019. The grant-date fair value of stock options was estimated using the Black-Scholes option-pricing model with the following weighted-average assumptions: Expected stock price volatility 47 % Expected life of options 6 years Risk-free interest rate 2.47 % Expected dividend yield — Fair value of common stock $31.20 The following table sets forth the outstanding common stock options and related activity for the six months ended July 31, 2019 : Shares Subject to Outstanding Options Weighted- Average Exercise Price per Share Weighted-Average Remaining Contractual Term (years) Aggregate Intrinsic Value (in thousands) Outstanding as of January 31, 2019 1,856,339 $ 23.64 5.6 $ 8,443 Granted 25,000 31.20 Exercised (66,772 ) 21.54 Forfeited (1,957 ) 28.52 Expired (10,118 ) 44.32 Outstanding as of July 31, 2019 1,802,492 $ 23.70 5.2 $ 9,101 Vested and exercisable at July 31, 2019 1,692,444 $ 23.37 5.0 $ 9,093 The aggregate intrinsic value of options exercised was $27,000 and $42,000 for the three months ended July 31, 2018 and 2019 , respectively, and $0.2 million and $1.1 million for the six months ended July 31, 2018 and 2019 , respectively. The intrinsic value represents the excess of the estimated fair value of the Company's common stock on the date of exercise over the exercise price of each option. The intrinsic value of options as of July 31, 2019 is based on the market closing price of the Company's Class B common stock on that date. As of July 31, 2019 , there was $1.4 million of unrecognized stock-based compensation expense related to outstanding stock options which is expected to be recognized over a weighted-average period of 1.3 years. Restricted Stock Units Restricted stock units (RSUs) granted under the Plan vest and settle upon the satisfaction of a service-based condition and, for RSUs granted prior to the IPO, a liquidity event-related performance vesting condition. The service-based condition for these awards is generally satisfied over three or four years with a cliff vesting period of one or two years and quarterly vesting thereafter. Some RSUs have a two -year vesting schedule, with one third of the RSUs vesting at twelve, eighteen, and twenty-four months. Upon the effectiveness of the registration statement for the Company's IPO, which was June 28, 2018, the liquidity event-related performance vesting condition associated with RSUs granted prior to the IPO was deemed probable of being satisfied. The following table sets forth the outstanding RSUs and related activity for the six months ended July 31, 2019 : Number of Shares Weighted- Average Grant Date Fair Value Outstanding as of January 31, 2019 2,328,122 $ 19.77 Granted 808,901 31.26 Vested (501,458 ) 23.98 Canceled (135,119 ) 20.84 Outstanding as of July 31, 2019 2,500,446 $ 22.58 As of July 31, 2019 , there was $42.8 million of unrecognized stock-based compensation expense related to outstanding RSUs which is expected to be recognized over a weighted-average period of 2.7 years. Employee Stock Purchase Plan In June 2018, the Company's board of directors adopted the ESPP. The number of shares of Class B common stock available for issuance under the ESPP increases on the first day of each fiscal year equal to the least of: (1) 1,050,000 shares of Class B common stock, (2) 1.5% of the outstanding shares of Class A and Class B common stock of the Company on the last day of the immediately preceding fiscal year, and (3) such other amount as the administrator of the ESPP may determine on or before the last day of the immediately preceding year . During the six months ended July 31, 2019 , the number of shares available under the ESPP was increased by 400,473 shares. As of July 31, 2019 , there were 1,195,053 shares available under the ESPP. The ESPP generally provides for consecutive overlapping 24 -month offering periods comprised of four six -month purchase periods; provided, however, that the first purchase period in the first offering period will have a duration of approximately nine months. The offering periods are scheduled to start on the first trading day on or after April 1 and October 1 of each year. The first offering period commenced on June 29, 2018 and is scheduled to end on the first trading day on or after October 1, 2020. The ESPP is intended to qualify as a tax-qualified plan under Section 423 of the Internal Revenue Code and permits participants to elect to purchase shares of Class B common stock through payroll deductions of up to 15% of their eligible compensation . A participant may purchase a maximum of 2,000 shares during each purchase period. Amounts deducted and accumulated by the participant will be used to purchase shares of Class B common stock at the end of each purchase period. The purchase price of the shares will be 85% of the lower of the fair market value of Class B common stock on the first trading day of each offering period or the fair market value of Class B common stock on the applicable exercise date . If the fair market value of a share of Class B common stock on the exercise date of an offering period is less than it was on the first trading day of that offering period, participants automatically will be withdrawn from that offering period following their purchase of shares on the exercise date and will be re-enrolled in a new offering period. Participants may end their participation at any time during an offering period and will be paid their accrued contributions that have not yet been used to purchase shares of Class B common stock. Participation ends automatically upon termination of employment. As of July 31, 2019 , a total of 575,754 shares were issuable to employees based on contribution elections made under the ESPP and 253,104 shares had been purchased. As of July 31, 2019 , total unrecognized stock-based compensation related to the ESPP was $3.4 million , which is expected to be recognized over a weighted-average period of 1.3 years . The fair value of the purchase rights for the ESPP are estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions: June 2018 April 2019 Expected stock price volatility 31% - 36% 43% - 52% Expected term 0.75 - 2.25 years 0.5 - 2.0 years Risk-free interest rate 2.22% - 2.54% 2.33% - 2.46% Expected dividend yield – –

Income Taxes

Income Taxes	6 Months Ended
	Jul. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company calculated the year-to-date income tax provision by applying the estimated annual effective tax rate to the year-to-date pre-tax loss and adjusted for discrete tax items in the period. The Company's income tax expense was $0.1 million and $0.3 million for the three months ended July 31, 2018 and 2019 , respectively, and $0.7 million and $0.4 million for the six months ended July 31, 2018 and 2019 , respectively. The income tax expense for these periods was primarily attributable to foreign taxes. For the periods presented, the difference between the U.S. statutory rate and the Company's effective tax rate is primarily due to the full valuation allowance on its U.S. tax assets. The effective tax rate is also impacted by earnings realized in foreign jurisdictions with statutory tax rates lower than the federal statutory tax rate.

Net Loss Per Share

Net Loss Per Share	6 Months Ended
	Jul. 31, 2019
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share The Company computes net loss per share using the two-class method required for multiple classes of common stock and participating securities. The rights, including the liquidation and dividend rights, of the Class A common stock and Class B common stock are substantially identical, other than voting rights. Accordingly, the Class A common stock and Class B common stock share equally in the Company’s net losses. Before the IPO, the Company’s participating securities also included convertible preferred stock. The holders of convertible preferred stock did not have a contractual obligation to share in the Company’s losses, and as a result net losses were not allocated to these participating securities. The following tables set forth the calculation of basic and diluted net loss per share during the periods presented. The shares issued in the IPO and the shares of Class A and Class B common stock issued upon conversion of the outstanding shares of convertible preferred stock in the IPO are included in the table below weighted for the period outstanding in the three and six months ended July 31, 2018 and 2019 (in thousands, except per share amounts): Three Months Ended July 31, 2018 2019 Class A Class B Class A Class B Numerator: Net loss $ (5,182 ) $ (41,202 ) $ (3,709 ) $ (27,451 ) Denominator: Weighted-average number of shares used in 1,174 9,335 3,264 24,154 Net loss per share, basic and diluted $ (4.41 ) $ (4.41 ) $ (1.14 ) $ (1.14 ) Six Months Ended July 31, 2018 2019 Class A Class B Class A Class B Numerator: Net loss $ (8,889 ) $ (83,002 ) $ (8,005 ) $ (58,691 ) Denominator: Weighted-average number of shares used in 595 5,556 3,264 23,932 Net loss per share, basic and diluted $ (14.94 ) $ (14.94 ) $ (2.45 ) $ (2.45 ) Since the Company was in a loss position for all periods presented, basic net loss per share is the same as diluted net loss per share for all periods as the inclusion of all potential common shares outstanding would have been anti-dilutive. The weighted-average impact of potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive was as follows: Three Months Ended July 31, Six Months Ended July 31, 2018 2019 2018 2019 Convertible preferred stock on an if-converted basis 9,041,710 — 11,528,413 — Options to purchase common stock 500,943 464,901 508,340 537,481 Restricted stock units 106,017 1,179,038 144,499 1,321,463 Employee stock purchase program — 127,993 — 213,963 Common stock warrants 2,925 54,365 2,946 58,775 9,651,595 1,826,297 12,184,198 2,131,682

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jul. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Certain members of the Company's board of directors serve as directors of and/or are executive officers of and, in some cases, are investors in, companies that are customers or vendors of the Company. Certain of the Company’s executive officers also serve as directors of or serve in an advisory capacity to companies that are customers or vendors of the Company. As of January 31, 2019 and July 31, 2019 , the Company had $0.6 million and $0.6 million receivable from these customers, respectively. As of January 31, 2019 and July 31, 2019 , amounts payable to these vendors were immaterial. During the three months ended July 31, 2018 and 2019 and the six months ended July 31, 2018 and 2019 , the Company recognized revenue of $0.5 million , $0.3 million , $0.9 million and $0.6 million , respectively, related to these customers. During the three months ended July 31, 2018 and 2019 and the six months ended July 31, 2018 and 2019 , the Company recognized expense of $0.2 million , $0.1 million , $0.4 million and $0.2 million , respectively, related to these vendors. The Company previously utilized an aircraft owned by one of the Company's executive officers on an as-needed basis. This arrangement was terminated in June 2018. The Company recorded expenses related to usage of the aircraft of $0.1 million , $0 , $0.3 million and $0 during the three months ended July 31, 2018 and 2019 and the six months ended July 31, 2018 and 2019 , respectively.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jul. 31, 2019
Accounting Policies [Abstract]
Basis of Accounting	The accompanying unaudited condensed consolidated financial statements, which include the accounts of the Company and its wholly owned subsidiaries, have been prepared in conformity with accounting principles generally accepted in the United States of America or GAAP. All intercompany balances and transactions have been eliminated in consolidation. The Company’s fiscal year ends on January 31.
Use of Estimates	Use of Estimates The preparation of the condensed consolidated financial statements in conformity with GAAP requires management to make estimates, judgments and assumptions that affect the amounts reported in the condensed consolidated financial statements and the accompanying notes. The Company bases its estimates on historical experience and on other assumptions that its management believes are reasonable under the circumstances. Actual results could differ from those estimates. The Company’s estimates and judgments include the determination of standalone selling prices for the Company’s services, which are used to determine revenue recognition for arrangements with multiple performance obligations; the amortization period for deferred contract acquisition costs; valuation of the Company’s stock-based compensation, including the underlying estimated fair value of common stock in periods prior to the date of the Company's IPO; useful lives of fixed assets; capitalization and estimated useful life of internal-use software; valuation estimates used when evaluating impairment of long-lived and intangible assets including goodwill; and the allowance for doubtful accounts.
Foreign Currency	Foreign Currency The functional currencies of the Company’s foreign subsidiaries are the respective local currencies. The cumulative effect of translation adjustments arising from the use of differing exchange rates from period to period is included in accumulated other comprehensive income within the condensed consolidated balance sheets. Changes in the cumulative foreign translation adjustment are reported in the condensed consolidated statements of convertible preferred stock and stockholders’ (deficit) equity and the condensed consolidated statements of comprehensive loss. Transactions denominated in currencies other than the functional currency are remeasured at the end of the period and when the related receivable or payable is settled, which may result in transaction gains or losses. Foreign currency transaction gains and losses are included in other expense, net in the condensed consolidated statements of operations. All assets and liabilities denominated in a foreign currency are translated into U.S. dollars at the exchange rate on the balance sheet date. Revenue and expenses are translated at the average exchange rate during the period, and equity balances are translated using historical exchange rates.
Segment Information	Segment Information The Company operates as one operating segment. The Company’s chief operating decision maker is its chief executive officer, who reviews financial information presented on a consolidated basis for purposes of making operating decisions, assessing financial performance and allocating resources.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents consist of cash on hand, money market funds and highly liquid investments purchased with an original maturity date of 90 days or less from the date of purchase. The fair value of cash equivalents approximated their carrying value as of January 31, 2019 and July 31, 2019 .
Short-Term Investments	Short-Term Investments The Company’s short-term investments are primarily comprised of commercial paper, U.S. treasury securities, asset-backed securities and corporate debt securities. The Company determines the appropriate classification of its short-term investments at the time of purchase and reevaluates such designation at each balance sheet date. The Company has classified and accounted for its short-term investments as available-for-sale securities as the Company may sell these securities at any time for use in its current operations or for other purposes, even prior to maturity. As a result, the Company classifies its short-term investments, including securities with stated maturities beyond twelve months, within current assets in the condensed consolidated balance sheets. The Company's short-term investments are classified as available-for-sale securities and are recorded at fair value each reporting period. Unrealized gains and losses on these short-term investments are reported as a separate component of accumulated other comprehensive income in the condensed consolidated balance sheets until realized. Interest income is reported within other expense, net in the condensed consolidated statements of operations. The Company periodically evaluates its short-term investments to assess whether those with unrealized loss positions are other-than-temporarily impaired. The Company considers various factors in determining whether to recognize an impairment charge, including the length of time the investment has been in a loss position, the extent to which the fair value is less than the Company’s cost basis, and the financial condition and near-term prospects of the investee. If the Company determines that the decline in an investment’s fair value is other-than-temporary, the difference is recognized as an impairment loss in the condensed consolidated statements of operations. Realized gains and losses are reported in other expense, net in the condensed consolidated statements of operations.
Accounts Receivables	Accounts Receivable and Allowance for Doubtful Accounts Accounts receivable are recorded at the invoiced amount (net of allowances), do not require collateral, and do not bear interest. The Company’s payment terms generally provide that customers pay within 30 days of the invoice date.
Allowance for Doubtful Accounts	The Company maintains an allowance for doubtful accounts for amounts the Company does not expect to collect. In establishing the required allowance, management considers historical losses, current market conditions, customers’ financial condition, the age of the receivables, and current payment patterns. Account balances are written off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote.
Revenue Recognition	Revenue Recognition The Company derives revenue primarily from subscriptions to its cloud-based platform and professional services. Revenue is recognized when control of these services is transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled to in exchange for those services, net of sales taxes. For sales through channel partners, the Company considers the channel partner to be the end customer for the purposes of revenue recognition as the Company's contractual relationships with channel partners do not depend on the sale of the Company's services to their customers and payment from the channel partner is not contingent on receiving payment from their customers. The Company's contractual relationships with channel partners do not allow returns, rebates, or price concessions. The price of subscriptions is generally fixed at contract inception and therefore, the Company's contracts do not contain a significant amount of variable consideration. Revenue recognition is determined through the following steps: • Identification of the contract, or contracts, with a customer • Identification of the performance obligations in the contract • Determination of the transaction price • Allocation of the transaction price to the performance obligations in the contract • Recognition of revenue when, or as, performance obligations are satisfied Subscription Revenue Subscription revenue primarily consists of fees paid by customers to access the Company’s cloud-based platform, including support services. The Company's subscription agreements generally have annual contractual terms and a smaller percentage have multi-year contractual terms. Revenue is recognized ratably over the related contractual term beginning on the date that the platform is made available to a customer. Access to the platform represents a series of distinct services as the Company continually provides access to and fulfills its obligation to the end customer over the subscription term. The series of distinct services represents a single performance obligation that is satisfied over time. The Company recognizes revenue ratably because the customer receives and consumes the benefits of the platform throughout the contract period. The Company's contracts are generally non-cancelable. Professional Services and Other Revenue Professional services revenue consists of implementation services sold with new subscriptions as well as professional services sold separately. Other revenue includes training and education. Professional services arrangements are billed in advance, and revenue from these arrangements is recognized as the services are provided, generally based on hours incurred. Training and education revenue is also recognized as the services are provided. Contracts with Multiple Performance Obligations Most of the Company's contracts with new customers contain multiple performance obligations, generally consisting of subscriptions and professional services. For these contracts, individual performance obligations are accounted for separately if they are distinct. The transaction price is allocated to the separate performance obligations on a relative standalone selling price basis. Standalone selling prices are determined based on historical standalone selling prices, taking into consideration overall pricing objectives, market conditions and other factors, including contract value, customer demographics and the number and types of users within the contract. Deferred Revenue The Company's contracts are typically billed annually in advance. Deferred revenue includes amounts collected or billed in excess of revenue recognized. Deferred revenue is recognized as revenue as the related performance obligations are satisfied. Deferred revenue that will be recognized during the succeeding twelve-month period is recorded as a current liability and the remaining portion is recorded as a noncurrent liability. Cost of Revenue Cost of subscription revenue consists primarily of third-party hosting services and data center capacity; employee-related costs directly associated with cloud infrastructure and customer support personnel, including salaries, benefits, bonuses and stock-based compensation; amortization expense associated with capitalized software development costs; depreciation expense associated with computer equipment and software; certain fees paid to various third parties for the use of their technology and services; and allocated overhead. Allocated overhead includes items such as information technology infrastructure, rent, and employee benefit costs. Cost of professional services and other revenue consists primarily of employee-related costs associated with these services, including stock-based compensation; third-party consultant fees; and allocated overhead. Contract Acquisition Costs Contract acquisition costs, net are stated at cost net of accumulated amortization and primarily consist of deferred sales commissions, which are considered incremental and recoverable costs of obtaining a contract with a customer. Contract acquisition costs for initial contracts are deferred and then amortized on a straight-line basis over the period of benefit, which the Company has determined to be approximately four years . The period of benefit is determined by taking into consideration contractual terms, expected customer life, changes in the Company's technology and other factors. Contract acquisition costs for renewal contracts are not commensurate with contract acquisition costs for initial contracts and are recorded as expense when incurred if the period of benefit is one year or less. If the period of benefit is greater than one year, costs are deferred and then amortized on a straight-line basis over the period of benefit. Contract acquisition costs related to professional services and other performance obligations with a period of benefit of one year or less are recorded as expense when incurred. Amortization of contract acquisition costs is included in sales and marketing expenses in the accompanying condensed consolidated statements of operations.
Property and Equipment	Property and Equipment Property and equipment, net, are stated at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets or over the related lease terms (if shorter). Repairs and maintenance costs are expensed as incurred. The estimated useful lives of property and equipment are as follows: Computer equipment and software 2-3 years Furniture, vehicles and office equipment 3 years Leasehold improvements Shorter of remaining lease term or estimated useful life
Capitalized Internal-Use Software Costs	Capitalized Internal-Use Software Costs The Company capitalizes certain costs related to development of its platform incurred during the application development stage. Costs related to preliminary project activities and post-implementation activities are expensed as incurred. Maintenance and training costs are also expensed as incurred. Capitalized costs are included in property and equipment. Capitalized internal-use software is amortized as subscription cost of revenue on a straight-line basis over its estimated useful life, which is generally three years . Management evaluates the useful lives of these assets on an annual basis and tests for impairment whenever events or changes in circumstances occur that could impact the recoverability of these assets.
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill represents the excess of the purchase price in a business combination over the fair value of net tangible and intangible assets acquired. Goodwill and indefinite-lived intangible assets are not amortized, but rather tested for impairment at least annually on November 1 or more often if and when circumstances indicate that the carrying value may not be recoverable. Finite-lived intangible assets are amortized over their useful lives. Goodwill is tested for impairment based on reporting units. The Company periodically reevaluates the business and has determined that it continues to operate in one segment, which is also considered the sole reporting unit. Therefore, goodwill is tested for impairment at the consolidated level. The Company reviews its long-lived assets, including property and equipment and finite-lived intangible assets, for impairment whenever an event or change in facts and circumstances indicates that their carrying amounts may not be recoverable. Recoverability of these assets is measured by comparing the carrying amount to the estimated undiscounted future cash flows expected to be generated. If the carrying amount exceeds the undiscounted cash flows, the assets are determined to be impaired and an impairment charge is recognized as the amount by which the carrying amount exceeds fair value. There was no goodwill acquired and no impairment charges for goodwill or long-lived assets recorded during the periods presented.
Advertising Costs	Advertising Costs Advertising costs are expensed as incurred.
Research and Development	Research and Development Research and development expenses consist primarily of employee-related costs for the design and development of the Company's platform, contractor costs to supplement staff levels, third-party web services, consulting services, and allocated overhead. Research and development expenses, other than software development costs qualifying for capitalization, are expensed as incurred.
Stock-Based Compensation	Stock-Based Compensation The Company records stock-based compensation based on the grant date fair value of the awards, which include stock options and restricted stock units, and recognizes the fair value of those awards as expense using the straight-line method over the requisite service period of the award. For restricted stock units that contain performance conditions, the Company recognizes expense using the accelerated attribution method if it is probable the performance conditions will be met. The Company estimates the grant date fair value of stock options using the Black-Scholes option-pricing model. Stock-based compensation expense related to purchase rights issued under the 2018 Employee Stock Purchase Plan (ESPP) is based on the Black-Scholes option-pricing model fair value of the estimated number of awards as of the beginning of the offering period. Stock-based compensation expense is recognized using the straight-line method over the offering period. The determination of the grant date fair value of stock-based awards is affected by the estimated fair value of the Company's common stock as well as other assumptions and judgments, which are estimated as follows: • Fair Value Per Share of Common Stock . Because there was no public market for the Company's common stock prior to the IPO, the board of directors determined the common stock fair value at the grant date by considering numerous objective and subjective factors, including contemporaneous valuations of the Company’s common stock, actual operating and financial performance, market conditions, and performance of comparable publicly traded companies, business developments, the likelihood of achieving a liquidity event, and transactions involving preferred and common stock, among other factors. Subsequent to the IPO, the Company determines the fair value of common stock as of each grant date using the market closing price of the Company's Class B common stock on the date of grant. • Expected Term . The expected term is determined using the simplified method, which is calculated as the midpoint of the option’s contractual term and vesting period. The Company uses this method due to limited stock option exercise history. For the ESPP, the expected term is the beginning of the offering period to the end of each purchase period. • Expected Volatility . Since a public market for the Company's common stock did not exist prior to the IPO and, therefore, the Company does not have sufficient trading history of its common stock, expected volatility is estimated based on the volatility of similar publicly held companies over a period equivalent to the expected term of the awards. • Risk-free Interest Rate . The risk-free interest rate is determined using U.S. Treasury rates with a similar term as the expected term of the option. • Expected Dividend Yield . The Company has never declared or paid any cash dividends and does not presently plan to pay cash dividends in the foreseeable future. Consequently, the Company uses an expected dividend yield of zero.
Income Taxes	Income Taxes The Company accounts for income taxes in accordance with the liability method of accounting for income taxes. Under this method, the Company recognizes a liability or asset for the deferred income tax consequences of all temporary differences between the tax basis of assets and liabilities and their reported amounts in the condensed consolidated financial statements that will result in taxable or deductible amounts in future years when the reported amounts of the assets and liabilities are recovered or settled. These deferred income tax assets or liabilities are measured using the enacted tax rates that will be in effect when the differences are expected to affect taxable income. Valuation allowances are provided when it is more-likely-than-not that some or all of the deferred income tax assets may not be realized. In assessing the need for a valuation allowance, the Company has considered its historical levels of income, expectations of future taxable income and ongoing tax planning strategies. Because of the uncertainty of the realization of its deferred tax assets, the Company has a full valuation allowance for domestic net deferred tax assets, including net operating loss carryforwards, and tax credits related primarily to research and development. Realization of its deferred tax assets is dependent primarily upon future U.S. taxable income. Tax positions are recognized in the condensed consolidated financial statements when it is more-likely-than-not the position will be sustained upon examination by the tax authorities. The Company’s policy for recording interest and penalties related to income taxes, including uncertain tax positions, is to record such items as a component of the provision for income taxes.
Concentration of Risk	Concentrations of Risk and Significant Customers Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash and cash equivalents, short-term investments and accounts receivable. The Company maintains its cash accounts with financial institutions where, at times, deposits exceed federal insurance limits. The Company invests its excess cash in money market funds and in short-term investments consisting of highly-rated debt securities.
Concentration of Significant Customers	The Company is primarily dependent upon third parties in order to meet the uptime and performance requirements of its customers. Any disruption of or interference with the Company's use of these third parties would impact operations.
Net Loss Per Share	Net Loss per Share The Company computes net loss per share using the two-class method required for multiple classes of common stock and participating securities. The rights, including the liquidation and dividend rights, of the Class A common stock and Class B common stock are substantially identical, other than voting rights. Accordingly, the Class A common stock and Class B common stock share equally in the Company’s net losses. Before the IPO, the Company’s participating securities also included convertible preferred stock. The holders of convertible preferred stock did not have a contractual obligation to share in the Company’s losses, and as a result net losses were not allocated to these participating securities. Basic net loss per share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during the period. Diluted net loss per share is computed by dividing net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period increased by common shares that could be issued upon conversion or exercise of other outstanding securities to the extent those additional common shares would be dilutive. The dilutive effect of potentially dilutive securities is reflected in diluted net loss per share by application of the treasury stock method. During periods when the Company is in a net loss position, basic net loss per share is the same as diluted net loss per share as the effects of potentially dilutive securities are anti-dilutive.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which requires lessees to record most leases on the balance sheet and recognize the expenses on the income statement in a manner similar to current practice. ASU 2016-02 states that a lessee would recognize a lease liability for the obligation to make lease payments and a right-to-use asset for the right to use the underlying asset for the lease term. The Company expects to adopt this standard for the year ending January 31, 2021, with interim periods being presented under the new standard beginning with the first quarter of the year ending January 31, 2022. The Company is currently evaluating the impact to its condensed consolidated financial statements and related disclosures, but expects assets and liabilities related to leases to increase as a result of adopting this standard. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326) , which requires the measurement and recognition of expected credit losses for certain financial instruments, which includes the Company's accounts receivable and available-for-sale debt securities. ASU 2016-13 replaces the existing incurred loss impairment model with an expected loss methodology, which will result in more timely recognition of credit losses. For available-for-sale debt securities, credit losses should be recorded through an allowance for credit losses. ASU 2016-13 becomes effective for the Company for the fiscal year beginning February 1, 2021, assuming it remains an emerging growth company. The standard requires a cumulative effect adjustment to the balance sheet as of the beginning of the first reporting period in which the guidance is effective. The Company is evaluating the impact of the adoption of ASU 2016-13 on its condensed consolidated financial statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jul. 31, 2019
Accounting Policies [Abstract]
Schedule of Estimated Useful Lives of Property, Plant and Equipment	The estimated useful lives of property and equipment are as follows: Computer equipment and software 2-3 years Furniture, vehicles and office equipment 3 years Leasehold improvements Shorter of remaining lease term or estimated useful life Property and equipment, net consisted of the following (in thousands): As of January 31, As of July 31, 2019 2019 Computer equipment and software $ 16,575 $ 5,762 Capitalized internal-use software development costs 18,140 21,326 Leasehold improvements 2,849 944 Furniture, vehicles and office equipment 2,537 855 40,101 28,887 Less accumulated depreciation and amortization (27,506 ) (16,210 ) $ 12,595 $ 12,677

Cash, Cash Equivalents, and S_2

Cash, Cash Equivalents, and Short-Term Investments (Tables)	6 Months Ended
	Jul. 31, 2019
Cash and Cash Equivalents [Abstract]
Cash, Cash Equivalents and Short-Term Investments	January 31, 2019 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value Cash $ 5,975 $ — $ — $ 5,975 Cash equivalents: Money market funds 170,998 — — 170,998 Total cash and cash equivalents $ 176,973 $ — $ — $ 176,973 July 31, 2019 Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value Cash $ 11,096 $ — $ — $ 11,096 Cash equivalents: Money market funds 79,846 — — 79,846 Reverse repurchase agreements 5,000 5,000 Commercial paper 1,997 — — 1,997 Total cash and cash equivalents $ 97,939 $ — $ — $ 97,939 Short-term investments: Commercial paper $ 19,943 $ — $ — $ 19,943 U.S. treasury securities 4,993 1 — 4,994 Asset-backed securities 4,996 — — 4,996 Corporate debt securities 5,995 — (1 ) 5,994 Total short-term investments 35,927 1 (1 ) 35,927 Total cash, cash equivalents and short-term investments $ 133,866 $ 1 $ (1 ) $ 133,866

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jul. 31, 2019
Fair Value Disclosures [Abstract]
Summary of Assets Measured at Fair Value on Recurring Basis	The following table summarizes the assets measured at fair value on a recurring basis as of January 31, 2019 and July 31, 2019 by level within the fair value hierarchy (in thousands): January 31, 2019 Level 1 Level 2 Level 3 Total Cash equivalents: Money market funds $ 170,998 $ — $ — $ 170,998 July 31, 2019 Level 1 Level 2 Level 3 Total Cash equivalents: Money market funds $ 79,846 $ — $ — $ 79,846 Reverse repurchase agreements — 5,000 — 5,000 Commercial paper — 1,997 — 1,997 Total cash equivalents $ 79,846 $ 6,997 $ — $ 86,843 Short-term investments: Commercial paper $ — $ 19,943 $ — $ 19,943 U.S. treasury securities 4,994 — — 4,994 Asset-backed securities — 4,996 — 4,996 Corporate debt securities — 5,994 — 5,994 Total short-term investments 4,994 30,933 — 35,927 Total cash equivalents and short-term investments $ 84,840 $ 37,930 $ — $ 122,770

Property and Equipment (Tables)

Property and Equipment (Tables)	6 Months Ended
	Jul. 31, 2019
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	The estimated useful lives of property and equipment are as follows: Computer equipment and software 2-3 years Furniture, vehicles and office equipment 3 years Leasehold improvements Shorter of remaining lease term or estimated useful life Property and equipment, net consisted of the following (in thousands): As of January 31, As of July 31, 2019 2019 Computer equipment and software $ 16,575 $ 5,762 Capitalized internal-use software development costs 18,140 21,326 Leasehold improvements 2,849 944 Furniture, vehicles and office equipment 2,537 855 40,101 28,887 Less accumulated depreciation and amortization (27,506 ) (16,210 ) $ 12,595 $ 12,677

Intangible Assets (Tables)

Intangible Assets (Tables)	6 Months Ended
	Jul. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-lived Intangible Assets	Intangible assets consisted of the following (in thousands): As of January 31, As of July 31, 2019 2019 Intellectual property excluding patents $ 2,289 $ 2,289 Software licenses 1,603 1,603 Patents 950 950 4,842 4,842 Less accumulated amortization (427 ) (734 ) $ 4,415 $ 4,108
Schedule of Indefinite-Lived Intangible Assets	Intangible assets consisted of the following (in thousands): As of January 31, As of July 31, 2019 2019 Intellectual property excluding patents $ 2,289 $ 2,289 Software licenses 1,603 1,603 Patents 950 950 4,842 4,842 Less accumulated amortization (427 ) (734 ) $ 4,415 $ 4,108

Accrued Expenses and Other Cu_2

Accrued Expenses and Other Current Liabilities (Tables)	6 Months Ended
	Jul. 31, 2019
Payables and Accruals [Abstract]
Schedule of Accrued Expenses and Other Current Liabilities	Accrued expenses and other current liabilities consisted of the following (in thousands): As of January 31, As of July 31, 2019 2019 Accrued payroll taxes $ 12,251 $ 9,911 Accrued expenses 8,688 8,809 Accrued payroll and benefits 6,142 7,722 Accrued bonus 5,338 5,253 Employee stock purchase plan liability 3,848 2,763 Accrued commissions 6,495 2,554 Sales and other taxes payable 1,409 1,582 Other accrued liabilities 3,968 2,262 $ 48,139 $ 40,856

Deferred Revenue and Performa_2

Deferred Revenue and Performance Obligations (Tables)	6 Months Ended
	Jul. 31, 2019
Revenue from Contract with Customer [Abstract]
Schedule of Changes in Deferred Revenue Balance	Significant changes in the Company's deferred revenue balance for the six months ended July 31, 2019 were as follows (in thousands): Balance as of January 31, 2019 $ 93,902 Revenue recognized that was included in the deferred revenue balance at the beginning of the period: Subscription $ (53,213 ) Professional services and other (4,000 ) Total (57,213 ) Increase due to billings excluding amounts recognized as revenue during the period 54,614 Balance as of July 31, 2019 $ 91,303

Geographic Information (Tables)

Geographic Information (Tables)	6 Months Ended
	Jul. 31, 2019
Revenue from Contract with Customer [Abstract]
Schedule of Revenue by Geographic Area	Revenue by geographic area is determined by the billing address of the customer. The following table sets forth revenue by geographic area (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2018 2019 2018 2019 United States $ 26,364 $ 30,947 $ 51,483 $ 61,193 Japan 2,869 4,091 5,507 8,310 Other 5,034 6,622 9,222 12,955 Total $ 34,267 $ 41,660 $ 66,212 $ 82,458 Percentage of revenue by geographic area: United States 77 % 74 % 78 % 74 % Japan 8 10 8 10 Other 15 16 14 16

Credit Facility Schedule of Deb

Credit Facility Schedule of Debt (Tables)	6 Months Ended
	Jul. 31, 2019
Debt Disclosure [Abstract]
Schedule of Long-term Debt	The balances in long-term debt consisted of the following: As of January 31, As of July 31, 2019 2019 Principal $ 102,494 $ 103,789 Less: unamortized debt issuance costs (5,249 ) (4,676 ) Net carrying amount $ 97,245 $ 99,113

Equity Incentive Plans (Tables)

Equity Incentive Plans (Tables)	6 Months Ended
	Jul. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Recognized Stock-based Compensation Expense	The Company recognized stock-based compensation expense related to its equity incentive plans as follows (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2018 2019 2018 2019 Cost of revenue: Subscription $ 55 $ 67 $ 70 $ 190 Professional services and other 70 60 78 153 Sales and marketing 3,744 2,041 4,049 6,049 Research and development 2,993 1,294 3,476 3,359 General and administrative 3,330 1,182 4,595 2,420 Interest expense (26 ) 47 (9 ) 95 Total $ 10,166 $ 4,691 $ 12,259 $ 12,266
Schedule of Weighted-average Assumptions Used in Estimating Grant-date Fair Value of Options	The grant-date fair value of stock options was estimated using the Black-Scholes option-pricing model with the following weighted-average assumptions: Expected stock price volatility 47 % Expected life of options 6 years Risk-free interest rate 2.47 % Expected dividend yield — Fair value of common stock $31.20
Schedule of Outstanding Stock Options and Related Activity	The grant-date fair value of stock options was estimated using the Black-Scholes option-pricing model with the following weighted-average assumptions: Expected stock price volatility 47 % Expected life of options 6 years Risk-free interest rate 2.47 % Expected dividend yield — Fair value of common stock $31.20 The following table sets forth the outstanding common stock options and related activity for the six months ended July 31, 2019 : Shares Subject to Outstanding Options Weighted- Average Exercise Price per Share Weighted-Average Remaining Contractual Term (years) Aggregate Intrinsic Value (in thousands) Outstanding as of January 31, 2019 1,856,339 $ 23.64 5.6 $ 8,443 Granted 25,000 31.20 Exercised (66,772 ) 21.54 Forfeited (1,957 ) 28.52 Expired (10,118 ) 44.32 Outstanding as of July 31, 2019 1,802,492 $ 23.70 5.2 $ 9,101 Vested and exercisable at July 31, 2019 1,692,444 $ 23.37 5.0 $ 9,093
Schedule of Outstanding RSUs and Related Activity	The following table sets forth the outstanding RSUs and related activity for the six months ended July 31, 2019 : Number of Shares Weighted- Average Grant Date Fair Value Outstanding as of January 31, 2019 2,328,122 $ 19.77 Granted 808,901 31.26 Vested (501,458 ) 23.98 Canceled (135,119 ) 20.84 Outstanding as of July 31, 2019 2,500,446 $ 22.58
Schedule of Weighted-average Assumptions Used in Determining Grant-date Fair Value of ESPP Purchase Rights	The fair value of the purchase rights for the ESPP are estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions: June 2018 April 2019 Expected stock price volatility 31% - 36% 43% - 52% Expected term 0.75 - 2.25 years 0.5 - 2.0 years Risk-free interest rate 2.22% - 2.54% 2.33% - 2.46% Expected dividend yield – –

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	6 Months Ended
	Jul. 31, 2019
Earnings Per Share [Abstract]
Schedule of Computation of Net Loss Per Share	The following tables set forth the calculation of basic and diluted net loss per share during the periods presented. The shares issued in the IPO and the shares of Class A and Class B common stock issued upon conversion of the outstanding shares of convertible preferred stock in the IPO are included in the table below weighted for the period outstanding in the three and six months ended July 31, 2018 and 2019 (in thousands, except per share amounts): Three Months Ended July 31, 2018 2019 Class A Class B Class A Class B Numerator: Net loss $ (5,182 ) $ (41,202 ) $ (3,709 ) $ (27,451 ) Denominator: Weighted-average number of shares used in 1,174 9,335 3,264 24,154 Net loss per share, basic and diluted $ (4.41 ) $ (4.41 ) $ (1.14 ) $ (1.14 ) Six Months Ended July 31, 2018 2019 Class A Class B Class A Class B Numerator: Net loss $ (8,889 ) $ (83,002 ) $ (8,005 ) $ (58,691 ) Denominator: Weighted-average number of shares used in 595 5,556 3,264 23,932 Net loss per share, basic and diluted $ (14.94 ) $ (14.94 ) $ (2.45 ) $ (2.45 )
Schedule of Antidilutive Securities Excluded from Computation of Net Loss Per Share	Since the Company was in a loss position for all periods presented, basic net loss per share is the same as diluted net loss per share for all periods as the inclusion of all potential common shares outstanding would have been anti-dilutive. The weighted-average impact of potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive was as follows: Three Months Ended July 31, Six Months Ended July 31, 2018 2019 2018 2019 Convertible preferred stock on an if-converted basis 9,041,710 — 11,528,413 — Options to purchase common stock 500,943 464,901 508,340 537,481 Restricted stock units 106,017 1,179,038 144,499 1,321,463 Employee stock purchase program — 127,993 — 213,963 Common stock warrants 2,925 54,365 2,946 58,775 9,651,595 1,826,297 12,184,198 2,131,682

Overview and Basis of Present_2

Overview and Basis of Presentation (Details)	Jun. 15, 2018	Jul. 31, 2019segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reverse stock split ratio	0.0667
Number of operating segments		1

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended		6 Months Ended
	Jul. 31, 2019USD ($)	Jul. 31, 2018USD ($)	Jul. 31, 2019USD ($)segment	Jul. 31, 2018USD ($)
Finite-Lived Intangible Assets [Line Items]
Amortization period for capitalized contract acquisition costs	4 years		4 years
Amortization of expense related to contract acquisition costs	$ 2,800,000	$ 1,900,000	$ 5,495,000	$ 3,633,000
Impairment charge in relation to contract acquisition costs	0	0	$ 0	0
Number of operating segments | segment			1
Goodwill acquired	0	0	$ 0	0
Impairment charges for goodwill or long-lived assets	0	0	0	0
Advertising expense	$ 2,000,000	$ 3,100,000	$ 4,300,000	$ 10,400,000
Capitalized internal-use software development costs
Finite-Lived Intangible Assets [Line Items]
Useful lives of capitalized internal-use software			3 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Property and Equipment (Details)	6 Months Ended
	Jul. 31, 2019
Computer equipment and software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	2 years
Computer equipment and software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	3 years
Furniture, vehicles and office equipment
Property, Plant and Equipment [Line Items]
Estimated useful lives of property and equipment	3 years

Cash, Cash Equivalents, and S_3

Cash, Cash Equivalents, and Short-Term Investments (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2019	Jan. 31, 2019
Cash and Cash Equivalents [Line Items]
Total cash and cash equivalents	$ 97,939	$ 176,973
Debt Securities, Available-for-sale, Amortized Cost	35,927
Debt Securities, Available-for-sale, Unrealized Gain	1
Debt Securities, Available-for-sale, Unrealized Loss	(1)
Debt Securities, Available-for-sale	35,927
Cash Equivalents and Debt Securities, Available for Sale, Amortized Cost	133,866
Cash Equivalents And Debt Securities, Available-For-Sale, Unrealized Gain	1
Cash Equivalents And Debt Securities, Available-For-Sale, Unrealized Loss	1
Cash Equivalents And Debt Securities, Available-For-Sale	133,866
Commercial Paper
Cash and Cash Equivalents [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	19,943
Debt Securities, Available-for-sale, Unrealized Gain	0
Debt Securities, Available-for-sale, Unrealized Loss	0
Debt Securities, Available-for-sale	19,943
US Treasury Securities
Cash and Cash Equivalents [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	4,993
Debt Securities, Available-for-sale, Unrealized Gain	1
Debt Securities, Available-for-sale, Unrealized Loss	0
Debt Securities, Available-for-sale	4,994
Asset-backed Securities
Cash and Cash Equivalents [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	4,996
Debt Securities, Available-for-sale, Unrealized Gain	0
Debt Securities, Available-for-sale, Unrealized Loss	0
Debt Securities, Available-for-sale	4,996
Corporate Debt Securities
Cash and Cash Equivalents [Line Items]
Debt Securities, Available-for-sale, Amortized Cost	5,995
Debt Securities, Available-for-sale, Unrealized Gain	0
Debt Securities, Available-for-sale, Unrealized Loss	(1)
Debt Securities, Available-for-sale	5,994
Cash
Cash and Cash Equivalents [Line Items]
Cash	11,096	5,975
Money Market Funds
Cash and Cash Equivalents [Line Items]
Cash equivalents:	79,846	$ 170,998
Reverse repurchase agreements
Cash and Cash Equivalents [Line Items]
Cash equivalents:	5,000
Commercial Paper
Cash and Cash Equivalents [Line Items]
Cash equivalents:	$ 1,997

Fair Value Measurements - Asset

Fair Value Measurements - Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jul. 31, 2019	Jan. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 35,927	$ 0
Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	86,843
Short-term investments	35,927
Total cash equivalents and short-term investments	122,770
Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	79,846
Short-term investments	4,994
Total cash equivalents and short-term investments	84,840
Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	6,997
Short-term investments	30,933
Total cash equivalents and short-term investments	37,930
Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0
Short-term investments	0
Total cash equivalents and short-term investments	0
Commercial Paper | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	19,943
Commercial Paper | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
Commercial Paper | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	19,943
Commercial Paper | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
US Treasury Securities | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	4,994
US Treasury Securities | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	4,994
US Treasury Securities | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
US Treasury Securities | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
Asset-backed Securities | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	4,996
Asset-backed Securities | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
Asset-backed Securities | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	4,996
Asset-backed Securities | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
Corporate Debt Securities | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	5,994
Corporate Debt Securities | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
Corporate Debt Securities | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	5,994
Corporate Debt Securities | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
Money Market Funds | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	79,846	170,998
Money Market Funds | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	79,846	170,998
Money Market Funds | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Money Market Funds | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	$ 0
Reverse repurchase agreements | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	5,000
Reverse repurchase agreements | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0
Reverse repurchase agreements | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	5,000
Reverse repurchase agreements | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0
Commercial Paper | Recurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	1,997
Commercial Paper | Recurring Basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0
Commercial Paper | Recurring Basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	1,997
Commercial Paper | Recurring Basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	$ 0

Property and Equipment (Details

Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018	Jan. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 28,887		$ 28,887		$ 40,101
Less accumulated depreciation and amortization	(16,210)		(16,210)		(27,506)
Property and equipment, net	12,677		12,677		12,595
Depreciation, excluding exchange rate effect	1,700	$ 2,300	3,300	$ 4,500
Software development costs capitalized	1,600	1,600	3,200	2,900
Capitalized software development costs amortized	1,000	$ 1,000	1,800	$ 1,900
Computer equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	5,762		5,762		16,575
Capitalized internal-use software development costs
Property, Plant and Equipment [Line Items]
Property and equipment, gross	21,326		21,326		18,140
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	944		944		2,849
Furniture, vehicles and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 855		$ 855		$ 2,537

Intangible Assets - Schedule of

Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2019	Jan. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 4,842	$ 4,842
Less accumulated amortization	(734)	(427)
Intangible assets, net	4,108	4,415
Patents
Finite-Lived Intangible Assets [Line Items]
Patents	950	950
Intellectual property excluding patents
Indefinite-lived Intangible Assets [Line Items]
Intellectual property excluding patents	2,289	2,289
Software licenses
Indefinite-lived Intangible Assets [Line Items]
Intellectual property excluding patents	$ 1,603	$ 1,603

Intangible Assets - Narrative (

Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 153	$ 20	$ 307	$ 40
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period			8 years

Accrued Expenses and Other Cu_3

Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2019	Jan. 31, 2019
Payables and Accruals [Abstract]
Accrued payroll taxes	$ 9,911	$ 12,251
Accrued expenses	8,809	8,688
Accrued payroll and benefits	7,722	6,142
Accrued bonus	5,253	5,338
Employee stock purchase plan liability	2,763	3,848
Accrued commissions	2,554	6,495
Sales and other taxes payable	1,582	1,409
Other accrued liabilities	2,262	3,968
Accrued expenses and other current liabilities	$ 40,856	$ 48,139

Deferred Revenue and Performa_3

Deferred Revenue and Performance Obligations (Details) $ in Thousands	6 Months Ended
	Jul. 31, 2019USD ($)
Contract with Customer, Liability, Increase (Decrease) [Roll Forward]
Deferred revenue, beginning balance	$ 93,902
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	(57,213)
Increase due to billings excluding amounts recognized as revenue during the period	54,614
Deferred revenue, ending balance	91,303
Subscription
Contract with Customer, Liability, Increase (Decrease) [Roll Forward]
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	(53,213)
Professional services and other
Contract with Customer, Liability, Increase (Decrease) [Roll Forward]
Revenue recognized that was included in the deferred revenue balance at the beginning of the period	$ (4,000)

Deferred Revenue and Performa_4

Deferred Revenue and Performance Obligations - Narrative (Details) $ in Millions	Jul. 31, 2019USD ($)
Subscription | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-08-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized from remaining performance obligations	$ 69
Expected satisfaction period for remaining revenue performance obligations	6 months
Subscription | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-02-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized from remaining performance obligations	$ 71.4
Expected satisfaction period for remaining revenue performance obligations	1 year
Subscription | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized from remaining performance obligations	$ 187.3
Professional services and other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-08-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized from remaining performance obligations	$ 9.4
Expected satisfaction period for remaining revenue performance obligations	6 months
Professional services and other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized from remaining performance obligations	$ 13.3

Geographic Information - Revenu

Geographic Information - Revenue by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Concentration Risk [Line Items]
Total revenue	$ 41,660	$ 34,267	$ 82,458	$ 66,212
United States
Concentration Risk [Line Items]
Total revenue	$ 30,947	$ 26,364	$ 61,193	$ 51,483
United States | Revenue | Geographic concentration
Concentration Risk [Line Items]
Percentage of revenue by geographic area (percent)	74.00%	77.00%	74.00%	78.00%
JAPAN
Concentration Risk [Line Items]
Total revenue	$ 4,091	$ 2,869	$ 8,310	$ 5,507
JAPAN | Revenue | Geographic concentration
Concentration Risk [Line Items]
Percentage of revenue by geographic area (percent)	10.00%	8.00%
Other
Concentration Risk [Line Items]
Total revenue	$ 6,622	$ 5,034	$ 12,955	$ 9,222
Other | Revenue | Geographic concentration
Concentration Risk [Line Items]
Percentage of revenue by geographic area (percent)	16.00%	15.00%	16.00%	14.00%

Credit Facility - Narrative (De

Credit Facility - Narrative (Details)	1 Months Ended		3 Months Ended		6 Months Ended
	Apr. 30, 2018USD ($)$ / sharesshares	Dec. 31, 2017USD ($)$ / sharesshares	Jul. 31, 2019USD ($)$ / sharesshares	Jul. 31, 2018USD ($)	Jul. 31, 2019USD ($)$ / sharesshares	Jul. 31, 2018USD ($)
Line of Credit Facility [Line Items]
Interest expense incurred			$ 3,200,000	$ 3,100,000	$ 6,300,000	$ 4,800,000
Secured credit facility | Line of Credit | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Borrowing capacity under credit facility	$ 100,000,000	$ 80,000,000
Draws made on line of credit	50,000,000	50,000,000
Required closing fee under line of credit			$ 2,000,000		$ 2,000,000
Annualized recurring revenue as ratio of Company's aggregate revenue for preceding quarter			4		4
Discount periods netted from calculation of annualized revenue					1 year
Covenant measurement period on a trailing basis					3 months
Secured credit facility | Term loan | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Additional amounts available to draw under credit facility		$ 30,000,000
Additional term loan borrowings incurred	$ 20,000,000
Required closing fee under line of credit			$ 7,000,000		$ 7,000,000
Minimum interest rate of portion of outstanding principal accruing interest at floating rate (percent)			7.00%		7.00%
Interest rate at period end (percent)			7.90%		7.90%
Interest rate of portion of outstanding principal accruing interest at fixed rate (percent)			2.50%		2.50%
Interest capitalized			$ 700,000	$ 300,000	$ 1,300,000	$ 700,000
Secured credit facility | LIBOR | Term loan | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Spread on variable rate (percent)					5.50%
Series D-2 convertible preferred stock warrants | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Number of shares that can be purchased (shares) | shares		28,462
Exercise price of warrants (in usd per share) | $ / shares		$ 126.47
Class B Common Stock Warrants | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Number of shares that can be purchased (shares) | shares	66,664		125,000		125,000
Exercise price of warrants (in usd per share) | $ / shares	$ 45		$ 17.8736		$ 17.8736
July 31, 2019 and October 31, 2019 | Secured credit facility | Line of Credit | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Minimum ratio of outstanding debt to annualized recurring revenue			0.8		0.8
January 31, 2020 and April 30, 2020 | Secured credit facility | Line of Credit | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Minimum ratio of outstanding debt to annualized recurring revenue			0.75		0.75
July 31, 2020 and October 31, 2020 | Secured credit facility | Line of Credit | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Minimum ratio of outstanding debt to annualized recurring revenue			0.7		0.7
January 31, 2021 and April 30, 2021 | Secured credit facility | Line of Credit | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Minimum ratio of outstanding debt to annualized recurring revenue			0.65		0.65
July 31, 2021 | Secured credit facility | Line of Credit | Credit Facility Maturing October 1, 2022
Line of Credit Facility [Line Items]
Minimum ratio of outstanding debt to annualized recurring revenue			0.6		0.6

Credit Facility - Schedule of L

Credit Facility - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Jul. 31, 2019	Jan. 31, 2019
Debt Disclosure [Abstract]
Principal	$ 103,789	$ 102,494
Less: unamortized debt issuance costs	(4,676)	(5,249)
Net carrying amount	$ 99,113	$ 97,245

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Rent expense under operating leases	$ 1.7	$ 1.6	$ 3.4	$ 3.2

Stockholders' Equity (Deficit)

Stockholders' Equity (Deficit) - Narrative (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Jul. 31, 2018USD ($)	Jul. 31, 2019classvote$ / sharesshares	Jan. 31, 2019shares	Apr. 30, 2018$ / sharesshares	Dec. 31, 2017$ / sharesshares	Jul. 31, 2016$ / sharesshares	Nov. 30, 2011$ / sharesshares
Class of Stock [Line Items]
Preferred stock authorized (shares)		10,000,000	10,000,000
Preferred stock issued (shares)		0	0
Number of classes of common stock | class		2
Preferred stock outstanding (shares)		0	0
Issuance of common stock warrants | $	$ 126
Class A Common Stock
Class of Stock [Line Items]
Number of votes each share is entitled to | vote		40
Shares to be issued upon conversion (shares)		1
Common stock authorized (shares)		3,263,659	3,263,659
Common stock issued (shares)		3,263,659	3,263,659
Stock outstanding (shares)		3,263,659	3,263,659
Class B Common Stock
Class of Stock [Line Items]
Number of votes each share is entitled to | vote		1
Common stock authorized (shares)		500,000,000	500,000,000
Common stock issued (shares)		24,235,000	23,435,000
Stock outstanding (shares)		24,234,603	23,435,000
Credit Facility Maturing October 1, 2022 | Series D-2 convertible preferred stock warrants
Class of Stock [Line Items]
Number of shares that can be purchased (shares)					28,462
Exercise price of warrants (in usd per share) | $ / shares					$ 126.47
Credit Facility Maturing October 1, 2022 | Class B Common Stock Warrants
Class of Stock [Line Items]
Number of shares that can be purchased (shares)		125,000		66,664
Exercise price of warrants (in usd per share) | $ / shares		$ 17.8736		$ 45
Credit Facility Due July 18, 2018 | Class B Common Stock Warrants
Class of Stock [Line Items]
Number of shares that can be purchased (shares)						3,333
Exercise price of warrants (in usd per share) | $ / shares						$ 34.35
Warrants expiration period						10 years
November 2011 Loan | Class B Common Stock Warrants
Class of Stock [Line Items]
Number of shares that can be purchased (shares)							3,729
Strike price (usd per share) | $ / shares							$ 4.8
Warrants expiration period							10 years

Equity Incentive Plans - Narrat

Equity Incentive Plans - Narrative (Details) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		11 Months Ended
	Jul. 31, 2019USD ($)purchase_period$ / sharesshares	Jul. 31, 2018USD ($)	Jul. 31, 2019USD ($)purchase_period$ / sharesshares	Jul. 31, 2018USD ($)shares	Apr. 30, 2019shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted in period (shares)	0		25,000	0
Options exercised | $	$ 42	$ 27	$ 1,100	$ 200
Options to purchase common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Term of award			P10Y
Weighted average grant-date fair value (in usd per share) | $ / shares	$ 14.95		$ 14.95
Compensation cost not yet recognized | $	$ 1,400		$ 1,400
Recognition period for compensation cost not yet recognized			1 year 4 months
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition period for compensation cost not yet recognized			2 years 8 months
Compensation cost not yet recognized | $	$ 42,800		$ 42,800
2018 Equity Incentive Plan (2018 Plan) | Common Class A and Common Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding shares (percent)					5.00%
2018 Equity Incentive Plan (2018 Plan) | Class B Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized (shares)			1,334,910		3,500,000
Common stock reserved for future issuance (shares)	5,139,474		5,139,474
Employee Stock Purchase Plan | ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recognition period for compensation cost not yet recognized			1 year 4 months
Compensation cost not yet recognized | $	$ 3,400		$ 3,400
Duration of overlapping offering periods			24 months
Number of purchase periods in each offering period | purchase_period	4		4
Duration of purchase periods			6 months
Duration of first purchase period in first offering period			9 months
Share purchase price as percentage of fair value of common stock (percent)	15.00%		15.00%
Maximum annual contributions via payroll deductions (shares)			2,000
Percentage of eligible compensation (percent)			85.00%
Number of shares available for grant (shares)	575,754		575,754
Shares purchased (shares)			253,104
Employee Stock Purchase Plan | Common Class A and Common Class B | ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding shares (percent)					1.50%
Employee Stock Purchase Plan | Class B Common Stock | ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized (shares)			400,473		1,050,000
Common stock reserved for future issuance (shares)	1,195,053		1,195,053
Minimum | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service condition satisfaction period			3 years
Maximum | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service condition satisfaction period			4 years
Share-based Compensation Award, Tranche One [Member] | Minimum | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
Share-based Compensation Award, Tranche One [Member] | Maximum | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			2 years
Share-based Compensation Award, Tranche Two [Member] | Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			2 years

Equity Incentive Plans - Recogn

Equity Incentive Plans - Recognized Stock-based Compensation Expense (Details) - 2011 Equity Incentive Plan (the Plan) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 4,691	$ 10,166	$ 12,266	$ 12,259
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	2,041	3,744	6,049	4,049
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,294	2,993	3,359	3,476
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	1,182	3,330	2,420	4,595
Interest expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	47	(26)	95	(9)
Subscription | Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	67	55	190	70
Professional services and other | Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 60	$ 70	$ 153	$ 78

Equity Incentive Plans - Assump

Equity Incentive Plans - Assumptions Used to Calculate the Grant-date Fair Value (Details) - $ / shares	1 Months Ended		6 Months Ended
	Apr. 30, 2019	Jun. 30, 2018	Jul. 31, 2019
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected stock price volatility			47.00%
Expected term			6 years
Risk-free interest rate			2.47%
Expected dividend yield			0.00%
Fair value of common stock (in usd per share)			$ 31.20
Minimum | ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected stock price volatility	43.00%	31.00%
Expected term	6 months	9 months
Risk-free interest rate	2.33%	2.22%
Expected dividend yield	0.00%	0.00%
Maximum | ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected stock price volatility	52.00%	36.00%
Expected term	2 years	2 years 3 months
Risk-free interest rate	2.46%	2.54%
Expected dividend yield	0.00%	0.00%

Equity Incentive Plans - Outsta

Equity Incentive Plans - Outstanding Common Stock Options and Related Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jul. 31, 2019	Jul. 31, 2019	Jul. 31, 2018	Jan. 31, 2019
Shares Subject to Outstanding Options
Beginning balance of options outstanding (shares)		1,856,339
Granted (shares)	0	25,000	0
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 31.20
Exercised (shares)		(66,772)
Forfeited (shares)		(1,957)
Expired (shares)		(10,118)
Ending balance of options outstanding (shares)	1,802,492	1,802,492
Options vested and exercisable, outstanding (shares)	1,692,444	1,692,444
Weighted- Average Exercise Price per Share
Options outstanding, weighted average exercise price (in usd per share)		$ 23.64
Options exercised, weighted average exercise price (in usd per share)		21.54
Options forfeited, weighted average exercise price (in usd per share)		28.52
Options expired, weighted average exercise price (in usd per share)		44.32
Options outstanding, weighted average exercise price (in usd per share)	$ 23.70	23.70
Options vested and exercisable, weighted average exercise price (in usd per share)	$ 23.37	$ 23.37
Additional disclosures
Options outstanding, weighted average remaining contractual term		5 years 2 months	5 years 7 months
Options vested and exercisable, weighted average remaining contractual term		5 years
Options outstanding, aggregate intrinsic value	$ 9,101	$ 9,101		$ 8,443
Options vested and exercisable, aggregate intrinsic value	$ 9,093	$ 9,093

Equity Incentive Plans - Outs_2

Equity Incentive Plans - Outstanding RSUs and Related Activity (Details) - Restricted stock units	6 Months Ended
	Jul. 31, 2019$ / sharesshares
Number of Shares
Outstanding as of January 31, 2018 (shares) | shares	2,328,122
Granted (shares) | shares	808,901
Canceled (shares) | shares	(135,119)
Outstanding as of July 31, 2019 (shares) | shares	2,500,446
Weighted- Average Grant Date Fair Value
Outstanding as of January 31,2018 (in usd per share) | $ / shares	$ 19.77
Granted (in usd per share) | $ / shares	31.26
Canceled (in usd per share) | $ / shares	20.84
Outstanding as of July 31, 2019 (in usd per share) | $ / shares	$ 22.58
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | shares	501,458
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 23.98

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 305	$ 107	$ 445	$ 710

Net Loss Per Share - Computatio

Net Loss Per Share - Computation of Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Jul. 31, 2019	Apr. 30, 2019	Jul. 31, 2018	Apr. 30, 2018	Jul. 31, 2019	Jul. 31, 2018
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net loss	$ (31,160)	$ (35,536)	$ (46,384)	$ (45,507)	$ (66,696)	$ (91,891)
Weighted-average number of shares used in computing net loss per share, basic and diluted (shares)	27,418		10,509		27,196	6,151
Net loss per share, basic and diluted (in usd per share)	$ (1.14)		$ (4.41)		$ (2.45)	$ (14.94)
Class A Common Stock
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net loss	$ (3,709)		$ (5,182)		$ (8,005)	$ (8,889)
Weighted-average number of shares used in computing net loss per share, basic and diluted (shares)	3,264		1,174		3,264	595
Net loss per share, basic and diluted (in usd per share)	$ (1.14)		$ (4.41)		$ (2.45)	$ (14.94)
Class B Common Stock
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net loss	$ (27,451)		$ (41,202)		$ (58,691)	$ (83,002)
Weighted-average number of shares used in computing net loss per share, basic and diluted (shares)	24,154		9,335		23,932	5,556
Net loss per share, basic and diluted (in usd per share)	$ (1.14)		$ (4.41)		$ (2.45)	$ (14.94)

Net Loss Per Share - Antidiluti

Net Loss Per Share - Antidilutive Securities Excluded from Computation of Net Loss Per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities that were not included in the diluted net loss per share calculations (shares)	1,826,297	9,651,595	2,131,682	12,184,198
Convertible Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities that were not included in the diluted net loss per share calculations (shares)	0	9,041,710	0	11,528,413
Options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities that were not included in the diluted net loss per share calculations (shares)	464,901	500,943	537,481	508,340
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities that were not included in the diluted net loss per share calculations (shares)	1,179,038	106,017	1,321,463	144,499
Employee stock purchase program
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities that were not included in the diluted net loss per share calculations (shares)	127,993	0	213,963	0
Common stock warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive securities that were not included in the diluted net loss per share calculations (shares)	54,365	2,925	58,775	2,946

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018	Jan. 31, 2019
Vendors of the company
Related Party Transaction [Line Items]
Due from related party	$ 0.6		$ 0.6		$ 0.6
Revenue from related party	0.3	$ 0.5	0.6	$ 0.9
Expenses recognized from transactions with related party	0.1	0.2	0.2	0.4
Executive officer of the company
Related Party Transaction [Line Items]
Expenses recognized from transactions with related party	$ 0	$ 0.1	$ 0	$ 0.3