Smartsheet (SMAR) 10-Q 10 Dec 18 2019 Q3 Quarterly report Financial data

DEI Document

DEI Document - shares	9 Months Ended
	Oct. 31, 2018	Dec. 07, 2018
Document Information [Abstract]
Document Type	10-Q
Document Fiscal Year Focus	2,019
Amendment Flag	false
Document Period End Date	Oct. 31, 2018
Document Fiscal Period Focus	Q3
Entity Registrant Name	SMARTSHEET INC
Entity Central Index Key	1,366,561
Current Fiscal Year End Date	--01-31
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		103,721,238

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017
Revenue
Revenues	$ 46,868,000	$ 29,388,000	$ 125,571,000	$ 78,290,000
Cost of revenue
Total cost of revenue	8,704,000	5,663,000	24,182,000	15,537,000
Gross profit	38,164,000	23,725,000	101,389,000	62,753,000
Operating expenses
Research and development	15,599,000	8,901,000	42,855,000	27,997,000
Sales and marketing	30,084,000	20,726,000	76,723,000	52,841,000
General and administrative	8,888,000	4,553,000	24,211,000	22,278,000
Total operating expenses	54,571,000	34,180,000	143,789,000	103,116,000
Loss from operations	(16,407,000)	(10,455,000)	(42,400,000)	(40,363,000)
Interest income (expense) and other, net	860,000	97,000	310,000	(29,000)
Net loss before provision for income taxes	(15,547,000)	(10,358,000)	(42,090,000)	(40,392,000)
Provision for income taxes	22,000	0	110,000	0
Net loss	(15,569,000)	(10,358,000)	(42,200,000)	(40,392,000)
Deemed dividend	0	0	0	(4,558,000)
Net loss attributable to common shareholders	$ (15,569,000)	$ (10,358,000)	$ (42,200,000)	$ (44,950,000)
Net loss per share attributable to common shareholders, basic and diluted (in usd per share)	$ (0.15)	$ (0.54)	$ (0.55)	$ (2.51)
Weighted-average shares outstanding used to compute net loss per share attributable to common shareholders, basic and diluted (in shares)	102,822	19,101	76,065	17,879
Subscription
Revenue
Revenues	$ 41,520,000	$ 26,441,000	$ 111,048,000	$ 70,612,000
Cost of revenue
Total cost of revenue	4,873,000	3,278,000	13,697,000	9,700,000
Professional services
Revenue
Revenues	5,348,000	2,947,000	14,523,000	7,678,000
Cost of revenue
Total cost of revenue	$ 3,831,000	$ 2,385,000	$ 10,485,000	$ 5,837,000

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (15,569)	$ (10,358)	$ (42,200)	$ (40,392)
Other comprehensive loss:
Net unrealized loss on available-for-sale securities	0	0	0	(1)
Comprehensive loss	$ (15,569)	$ (10,358)	$ (42,200)	$ (40,393)

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 31, 2018	Jan. 31, 2018
Current assets
Cash and cash equivalents	$ 212,028	$ 58,158
Accounts receivable, net of allowances of $876 and $457 at October 31, 2018 and January 31, 2018, respectively	23,815	14,870
Prepaid expenses and other current assets	5,660	4,628
Total current assets	241,503	77,656
Long-term assets
Restricted cash	2,435	2,901
Deferred commissions	24,349	15,291
Property and equipment, net	21,804	17,237
Intangible assets, net	1,165	1,547
Goodwill	532	445
Other long-term assets	21	1,527
Total assets	291,809	116,604
Current liabilities
Accounts payable	3,041	2,641
Accrued compensation and related benefits	19,039	13,253
Other accrued liabilities	6,108	3,061
Capital leases payable	3,632	2,833
Deferred revenue	83,906	57,102
Total current liabilities	115,726	78,890
Capital leases payable, non-current	3,032	3,713
Deferred revenue, non-current	245	179
Convertible preferred stock warrant liability	0	1,272
Other long-term liabilities	1,192	604
Total liabilities	120,195	84,658
Commitments and contingencies (Note 13)
Convertible preferred stock	0	112,687
Shareholders’ equity (deficit):
Preferred stock	0	0
Common stock	0	0
Additional paid-in capital	320,445	25,892
Accumulated deficit	(148,831)	(106,633)
Total shareholders’ equity (deficit)	171,614	(80,741)
Total liabilities, convertible preferred stock, and shareholders’ equity (deficit)	291,809	116,604
Common Class A
Shareholders’ equity (deficit):
Common stock	0	0
Common Class B
Shareholders’ equity (deficit):
Common stock	$ 0	$ 0

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Oct. 31, 2018	Jan. 31, 2018
Accounts receivable, allowances	$ 876	$ 457
Convertible preferred stock authorized (in shares)	0	67,756,647
Convertible preferred stock issued (in shares)	0	67,619,377
Convertible preferred stock outstanding (in shares)	0	67,619,377
Convertible preferred stock liquidation preference (in shares)		$ 113,217
Preferred stock authorized (in shares)	10,000,000	0
Preferred stock issued (in shares)	0	0
Preferred stock outstanding (in shares)	0	0
Common stock authorized (in shares)	0	107,679,381
Common stock issued (in shares)	0	20,280,741
Common stock outstanding (in shares)	0	20,280,741
Common Class A
Common stock authorized (in shares)	500,000,000	0
Common stock issued (in shares)	28,866,909	0
Common stock outstanding (in shares)	28,866,909	0
Common Class B
Common stock authorized (in shares)	500,000,000	0
Common stock issued (in shares)	74,448,862	0
Common stock outstanding (in shares)	74,448,862	0

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Cash flows from operating activities
Net loss	$ (42,200)	$ (40,392)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expense	11,984	17,583
Remeasurement of convertible preferred stock warrant liability	1,326	211
Depreciation of property and equipment	5,060	2,657
Amortization of deferred commission costs	7,342	3,293
Unrealized foreign currency loss	115	0
Gain/loss on disposal of assets	0	2
Amortization of intangible assets	382	10
Amortization of premiums, accretion of discounts and gain on investments	0	26
Changes in operating assets and liabilities:
Accounts receivable	(8,980)	(5,581)
Prepaid expenses and other current assets	(1,510)	(751)
Other long-term assets	49	(22)
Accounts payable	941	1,175
Other accrued liabilities	2,792	2,068
Accrued compensation and related benefits	4,791	4,135
Deferred commissions	(16,400)	(9,927)
Other long-term liabilities	588	364
Deferred revenue	26,870	18,183
Net cash used in operating activities	(6,850)	(6,966)
Cash flows from investing activities
Purchases of property and equipment	(4,372)	(4,080)
Capitalized internal-use software development costs	(2,156)	(2,681)
Proceeds from sales of investments	0	899
Proceeds from maturity of investments	0	9,222
Proceeds from sale of computer equipment	0	1
Purchases of intangible assets	0	(125)
Net cash provided by (used in) investing activities	(6,528)	3,236
Cash flows from financing activities
Proceeds from initial public offering, net of underwriters' discounts and commissions	163,844	0
Payments on principal of capital leases	(2,520)	(1,577)
Payments of deferred offering costs	(2,388)	0
Proceeds from issuance of convertible preferred stock	0	52,177
Proceeds from exercise of stock options	3,087	1,692
Proceeds from Employee Stock Purchase Plan	4,832	0
Net cash provided by financing activities	166,855	52,292
Effect of foreign exchange on cash, cash equivalents, and restricted cash	(73)	0
Net increase in cash, cash equivalents, and restricted cash	153,404	48,562
Cash, cash equivalents, and restricted cash
Beginning of period	61,059	24,013
End of period	214,463	72,575
Supplemental disclosures
Cash paid for interest	257	247
Purchases of fixed assets under capital leases	2,639	789
Accrued purchases of property and equipment (including internal-use software)	480	55
Deemed dividends on convertible preferred stock	0	(4,558)
Deferred offering costs, accrued but not yet paid	215	0
Share-based compensation capitalized in internal-use software development costs	$ 114	$ 0

Overview and Basis of Presentat

Overview and Basis of Presentation	9 Months Ended
	Oct. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Overview and Basis of Presentation	Overview and Basis of Presentation Description of business Smartsheet Inc. (the “Company,” “we,” “our”) was incorporated in the State of Washington in 2005, and is headquartered in Bellevue, Washington. The Company is a leading cloud-based platform for work execution, enabling teams and organizations to plan, capture, manage, automate, and report on work at scale. Customers access their accounts online via a web-based interface or a mobile application. Some customers also purchase the Company ’ s professional services, which primarily consist of consulting and training services. Initial public offering On May 1, 2018, we completed our initial public offering (“IPO”) in which we issued and sold 11,745,088 shares of Class A common stock, inclusive of the over-allotment, at a public offering price of $15.00 per share. We received net proceeds of $160.4 million after deducting underwriting discounts and commissions of $12.3 million and other issuance costs of $3.4 million . Immediately prior to the closing of our IPO, all shares of our convertible preferred stock automatically converted into an aggregate of 68.5 million shares of Class B common stock. In addition, we authorized for future issuance a total of 500 million shares of each Class A and Class B common stock, and 10 million shares of preferred stock. Basis of presentation The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in th e United States of America (“GAAP”) , and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The condensed consolidated balance sheet as of January 31, 2018 was derived from the audited consolidated financial statements as of that date but does not include all of the information and notes required by GAAP for complete financial statements. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto as of and for the year ended January 31, 2018, included in our final prospectus related to our IPO (“Prospectus”), filed with the SEC pursuant to Rule 424 (b) under the Securities Act of 1933, as amended (“the Securities Act”). The condensed consolidated financial statements include the results of Smartsheet Inc. and its wholly owned subsidiaries, which are located in the United States and the United Kingdom. All intercompany balances and transactions have been eliminated upon consolidation. In the opinion of management, the information contained herein reflects all adjustments necessary for a fair presentation of our results of operations, financial position, and cash flows. All such adjustments are of a normal, recurring nature. The results of operations for the three and nine months ended October 31, 2018 are not necessarily indicative of results to be expected for the full year ending January 31, 2019 or for any other interim period, or for any future year. Use of estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenue and expenses during the reporting periods. 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 most significant estimates and judgments involve revenue recognition with respect to the allocation of transaction consideration for the Company’s offerings; determination of the amortization period for capitalized sales commission costs; valuation of the Company’s share-ba sed compensation, including the underlying deemed fair value of common stock (prior to the closing of the IPO); u seful lives of property and equipme nt, including useful lives of internal-use software development costs; calculation of allowance for doubtful accounts; inputs in revaluation of convertible preferred stock warrant (prior to the closing of the IPO); and valuation of deferred income tax assets and uncertain tax positions, among others. Dual class common stock structure In April 2018, we implemented a dual class common stock structure, authorizing for issuance 112,979,381 shares of each Class A and Class B common stock. Upon establishment of the dual class common stock structure, (1) each then existing share of common stock converted into a share of Class B common stock, (2) a warrant to purchase shares of preferred stock convertible into common stock became a warrant to purchase shares of preferred stock convertible into shares of Class B common stock, (3) all shares of convertible preferred stock then outstanding became convertible into Class B common stock subject to the same rules and conditions as the previously existing convertible preferred stock, (4) all outstanding options to purchase common stock became options to purchase an equivalent number of shares of Class B common stock, and (5) all restricted stock units (“RSUs”) became RSUs for an equivalent number of shares of Class B common stock. The Class A common stock is entitled to one vote per share and the Class B common stock is entitled to ten votes per share. The Class A common stock and Class B common stock have the same dividend and liquidation rights. The Class B common stock converts to Class A common stock at any time at the option of the holder, or automatically upon the date that is the earliest of (i) the date which is seven years from the effective date of the IPO (April 26, 2025), (ii) the date on which the outstanding shares of Class B common stock represent less than 15% of the aggregate number of shares of common stock then outstanding, (iii) the date specified by a vote of the holders of not less than a majority of the outstanding shares of Class B common stock, voting separately as a single class. In addition, each share of Class B common stock will convert automatically into one share of Class A common stock upon any transfer, except for certain permitted transfers described in our restated certificate of incorporation filed with the state of Washington on April 9, 2018.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Oct. 31, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies 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 for purposes of making operating decisions, assessing financial performance, and allocating resources. Restricted cash Restricted cash as of October 31, 2018 consisted of $1.8 million related to collateral for an irrevocable letter of credit (entered into during the nine months ended October 31, 2018 ) for additional office space in Bellevue, and $0.6 million primarily related to security deposits for the Company’s Bellevue, Boston, London, and Edinburgh leases. Restricted cash as of January 31, 2018 consisted of $2.4 million related to collateral for irrevocable letters of credit and $0.5 million related to security deposits. The letters of credit that were outstanding as of January 31, 2018 were still in effect as of October 31, 2018 ; however, the requirement to maintain $2.4 million in cash collateral for those letters of credit was removed during the nine months ended October 31, 2018 , and the restricted cash balance was reduced by this amount. Cash as reported on the condensed consolidated statements of cash flows includes the aggregate amounts of cash and cash equivalents and restricted cash as shown on the condensed consolidated balance sheets. Cash as reported on the condensed consolidated statements of cash flows consists of the following (in thousands): October 31, 2018 2017 Cash and cash equivalents $ 212,028 $ 70,546 Restricted cash 2,435 2,029 Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows $ 214,463 $ 72,575 Deferred offering costs Deferred offering costs of $3.4 million , primarily consisting of legal, accounting, and other fees related to the IPO, were offset against proceeds upon the closing of the IPO on May 1, 2018. Convertible preferred stock warrant liability The Company classified its warrant to purchase convertible preferred stock as a liability. The Company adjusted the carrying valu e of the warrant liability to fair value at the end of each reporting period utilizing the Black-Scholes option pricing model . The convertible preferred stock warrant liability was included on the Company’s condensed consolidated balance sheets and its revaluation was recorded as an expense in interest income (expense) and other, net. Upon the closing of the IPO on May 1, 2018, the related warrant liability was reclassified to additional paid-in capital. Software development costs The Company capitalizes certain qualifying costs incurred during the application development stage in connection with the development of internal-use software. Costs related to preliminary project activities and post-implementation activities are expensed as incurred. Internal-use software costs of $2.5 million were capitalized in the nine months ended October 31, 2018, of which $1.0 million related to costs incurred during the application development stage of software development for the Company’s platform to which subscriptions are sold. Internal-use software costs of $2.7 million were capitalized in the nine months ended October 31, 2017, none of which related to costs incurred during the application development stage of software development for the Company’s platform to which subscriptions are sold. Capitalized software development costs are included within property and equipment, net on the balance sheets, and are amortized over the estimated useful life of the software, which is typically three years . The related amortization expense is recognized in the condensed consolidated statements of comprehensive loss within the function that receives the benefit of the developed software. The Company evaluates the useful lives of these assets and tests for impairment whenever events or changes in circumstances occur that could impact the recoverability of these assets. Concentrations of risk and significant customers Financial instruments that potentially subject the Company to concentrations of credit risk are primarily cash, cash equivalents, and accounts receivable. The Company maintains its cash accounts with financial institutions where deposits, at times, exceed the Federal Deposit Insurance Corporation (“FDIC”) limits. No individual customers represented more than 10% of accounts receivable as of October 31, 2018 or January 31, 2018 . No individual customers represented more than 10% of revenue for the three or nine months ended October 31, 2018 and 2017 . Recently adopted accounting pronouncements In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2016‑09, Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, (“ASU 2016‑09”) , which simplifies the accounting and reporting of share-based payment transactions, including adjustments to how excess tax benefits and payments for tax withholdings should be classified, and provides the election to eliminate the estimate for forfeitures. The Company adopted this ASU effective February 1, 2018. The adoption resulted in the recognition of a U.S. deferred tax asset, which was fully offset by a corresponding increase to the valuation allowance on our U.S. federal and state deferred income tax assets, and therefore did not have a material impact on our condensed consolidated financial statements. The Company did not elect to eliminate the estimate for forfeitures. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”), which aims to reduce the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 requires adoption on a retrospective basis unless it is impracticable to apply, in which case the Company would be required to apply the amendments prospectively as of the earliest date practicable. The Company adopted this ASU effective February 1, 2018. The adoption of this ASU did not have a material effect on the Company’s condensed consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU 2016-18”). This guidance is intended to clarify how entities present restricted cash in the statement of cash flows. The guidance requires entities to show the changes in the total of cash, cash equivalents, and restricted cash in the statement of cash flows. When cash, cash equivalents, and restricted cash are presented in more than one line item on the balance sheet, the new guidance requires a reconciliation of the totals in the statement of cash flows to the related captions in the balance sheet. The reconciliation can be presented either on the face of the statement of cash flows or in the notes to the consolidated financial statements. ASU 2016-18 is effective for fiscal years beginning after December 15, 2018, but early adoption is permitted. The Company early adopted this ASU effective February 1, 2018, retrospectively applying the new guidance to the comparative period presented in our condensed consolidated statements of cash flows. As a result of the adoption of this ASU, because movements to and from cash and restricted cash are no longer shown separately on the condensed consolidated statements of cash flows, the Company’s cash provided from investing activities increased by $0.1 million for the nine months ended October 31, 2017. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”) , which simplifies the measurement of goodwill impairment. Under this new guidance, an impairment charge, if triggered, is calculated as the difference between a reporting unit’s carrying value and fair value, but it is limited to the carrying value of goodwill. The guidance is effective prospectively for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019 and early adoption is permitted. The Company early adopted this guidance effective February 1, 2018 and applied the new guidance when evaluating goodwill for impairment during the three months ended October 31, 2018. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting (“ASU 2017-09”) , which clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The guidance is effective prospectively for interim and annual periods beginning after December 15, 2017 and early adoption is permitted. The Company adopted this guidance effective February 1, 2018. The adoption of this ASU did not have a material effect on the Company’s condensed consolidated financial statements. Recent accounting pronouncements not yet adopted In February 2016, the FASB issued ASU 2016-02, Leases: Topic (842) (“ASU 2016-02”) and has modified the standard thereafter. This standard requires the recognition of a right-of-use asset and lease liability on the balance sheet for all leases. This standard also requires more detailed disclosures to enable users of financial statements to understand the amount, timing, and uncertainty of cash flows arising from leases. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018 and should be applied through a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, and early adoption is permitted. The Company expects to adopt this guidance on February 1, 2019. The Company anticipates this standard will have a material impact on the Company’s financial position, primarily due to its office space operating leases, as the Company will be required to recognize right-of-use assets and lease liabilities on the balance sheet. The Company continues to assess the potential impacts of this standard, including the impact the adoption of this guidance will have on its results of operations or its cash flows, if any. In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other-Internal-Use Software (“ASU 2018-15”) , which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This guidance is effective for interim and annual reporting periods beginning after December 15, 2019, and early adoption is permitted. The Company is currently evaluating the impacts that adoption of this ASU will have on its condensed consolidated financial statements.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
	Oct. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customers	Revenue from Contracts with Customers During the three months ended October 31, 2018 and 2017 , the Company recognized $31.7 million and $19.4 million of subscription revenue, respectively, and $1.4 million and $1.0 million of professional services revenue, respectively, which were included in the deferred revenue balance as of July 31, 2018 and 2017 , respectively. During the nine months ended October 31, 2018 and 2017 , the Company recognized $51.8 million and $29.6 million of subscription revenue, respectively, and $1.1 million and $0.6 million of professional services revenue, respectively, which were included in the deferred revenue balance as of January 31, 2018 and 2017 , respectively. As of October 31, 2018 , the Company’s total deferred revenue balance was $84.2 million , of which $82.3 million represented deferred balances for subscription revenue and $1.9 million represented deferred balances for professional services revenue. Of the total deferred revenue balance, $83.9 million is expected to be recognized as revenue over the next 12 months. Deferred Commissions Deferred commissions were $24.3 million as of October 31, 2018 and $15.3 million as of January 31, 2018 . Amortization expense for deferred commissions was $2.8 million and $ 1.4 million for the three months ended October 31, 2018 and 2017 , respectively, and $7.3 million and $3.3 million for the nine months ended October 31, 2018 and 2017 , respectively. Deferred commissions are amortized over a period of three years and the amortization expense is recorded in sales and marketing on the Company’s condensed consolidated statements of operations.

Deferred Commissions

Deferred Commissions	9 Months Ended
	Oct. 31, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Deferred Commissions	Revenue from Contracts with Customers During the three months ended October 31, 2018 and 2017 , the Company recognized $31.7 million and $19.4 million of subscription revenue, respectively, and $1.4 million and $1.0 million of professional services revenue, respectively, which were included in the deferred revenue balance as of July 31, 2018 and 2017 , respectively. During the nine months ended October 31, 2018 and 2017 , the Company recognized $51.8 million and $29.6 million of subscription revenue, respectively, and $1.1 million and $0.6 million of professional services revenue, respectively, which were included in the deferred revenue balance as of January 31, 2018 and 2017 , respectively. As of October 31, 2018 , the Company’s total deferred revenue balance was $84.2 million , of which $82.3 million represented deferred balances for subscription revenue and $1.9 million represented deferred balances for professional services revenue. Of the total deferred revenue balance, $83.9 million is expected to be recognized as revenue over the next 12 months. Deferred Commissions Deferred commissions were $24.3 million as of October 31, 2018 and $15.3 million as of January 31, 2018 . Amortization expense for deferred commissions was $2.8 million and $ 1.4 million for the three months ended October 31, 2018 and 2017 , respectively, and $7.3 million and $3.3 million for the nine months ended October 31, 2018 and 2017 , respectively. Deferred commissions are amortized over a period of three years and the amortization expense is recorded in sales and marketing on the Company’s condensed consolidated statements of operations.

Net Loss Per Share

Net Loss Per Share	9 Months Ended
	Oct. 31, 2018
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share The following tables present calculations for basic and diluted net loss per share (in thousands, except per share data): Three Months Ended October 31, 2018 2017 Numerator: Net loss attributable to common shareholders $ (15,569 ) $ (10,358 ) Denominator: Weighted-average common shares outstanding 102,822 19,101 Net loss per share, basic and diluted $ (0.15 ) $ (0.54 ) Nine Months Ended October 31, 2018 2017 Numerator: Net loss attributable to common shareholders $ (42,200 ) $ (44,950 ) Denominator: Weighted-average common shares outstanding 76,065 17,879 Net loss per share, basic and diluted $ (0.55 ) $ (2.51 ) The following outstanding shares of common stock equivalents (in thousands) as of the periods presented were excluded from the computation of diluted net loss per share attributable to common shareholders for the periods presented because the impact of including them would have been anti-dilutive: October 31, 2018 2017 Convertible preferred shares (as converted) — 68,420 Convertible preferred stock warrant — 137 Shares subject to outstanding common stock awards 14,943 13,644 Shares issuable pursuant to the Employee Stock Purchase Plan 59 — Total potentially dilutive shares 15,002 82,201

Investments

Investments	9 Months Ended
	Oct. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Investments	Investments As of October 31, 2018 and January 31, 2018 , the Company did no t hold any available-for-sale investments.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Oct. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Assets and liabilities recorded at fair value in the condensed consolidated financial statements are categorized based upon the level of judgment associated with the inputs used to measure their fair value. The lowest level of significant input determines the placement of the fair value measurement within the following hierarchical levels: • Level 1: Observable inputs that reflect quoted prices (unadjusted) 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 that are supported by little or no market activity. The following tables present information about the Company’s financial assets and liabilities that are measured at fair value and indicates the fair value hierarchy of the valuation inputs used (in thousands) as of: October 31, 2018 Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 205,447 $ — $ — $ 205,447 Restricted cash: Certificates of deposit — 1,766 — 1,766 Total assets $ 205,447 $ 1,766 $ — $ 207,213 January 31, 2018 Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 55,702 $ — $ — $ 55,702 Liabilities: Convertible preferred stock warrant liability $ — $ — $ 1,272 $ 1,272 The carrying amounts of certain financial instruments, including cash held in banks, accounts receivable, and accounts payable, approximate fair value due to their short-term maturities and are excluded from the fair value tables above. It is the Company’s policy to recognize transfers of assets and liabilities between levels of the fair value hierarchy at the end of a reporting period. The Company does not transfer out of Level 3 and into Level 2 until observable inputs become available and reliable. At April 30, 2018, we transferred $2.6 million related to the Company’s Series C convertible preferred stock warrant out of our Level 3 liabilities and into our Level 2 liabilities. The Series C convertible preferred stock warrant liability was estimated using assumptions related to the remaining contractual term of the warrant, the risk-free interest rate, the volatility of comparable public companies over the remaining term, and the fair value of underlying shares. The significant unobservable input used in the fair value measurement of the Series C convertible preferred stock warrant liability as of January 31, 2018 was the fair value of the underlying stock at the valuation date. On April 27, 2018, the right to convert the preferred stock warrant was contingently exercised by the holder and settlement occurred with the closing of the IPO on May 1, 2018. As of April 30, 2018, the underlying stock price and term were observable and the instrument was therefore transferred to a Level 2 classification category prior to being extinguished on May 1, 2018. There were no other transfers in or out of our Level 1, 2, or 3 assets or liabilities during the nine months ended October 31, 2018 . Changes in fair value of our level 3 financial liabilities were as follows (in thousands): Balance as of January 31, 2018 $ 1,272 Increase in fair value of convertible preferred stock warrant 1,326 Transfer out of Level 3 (2,598 ) Balance as of October 31, 2018 $ —

Goodwill and Net Intangible Ass

Goodwill and Net Intangible Assets	9 Months Ended
	Oct. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Net Intangible Assets	Goodwill and Net Intangible Assets On December 28, 2017, Smartsheet Inc. purchased 100% of the issued and outstanding capital stock of Converse.AI, Inc. in an all-cash transaction. As a result of this acquisition, the Company recorded goodwill of $0.5 million (inclusive of a measurement period adjustment of $0.1 million ) and identifiable intangible assets of $1.4 million. The following table presents the components of net intangible assets (in thousands) as of: October 31, 2018 January 31, 2018 Acquired software technology $ 1,366 $ 1,366 Acquired customer relationships 70 70 Patents 170 170 Domain name 13 13 Total intangible assets 1,619 1,619 Less: accumulated amortization (454 ) (72 ) Total intangible assets, net $ 1,165 $ 1,547 Amortization expense was $127 thousand and $4 thousand for the three months ended October 31, 2018 and 2017 , respectively, and $382 thousand and $10 thousand for the nine months ended October 31, 2018 and 2017 , respectively.

Convertible Preferred Stock

Convertible Preferred Stock	9 Months Ended
	Oct. 31, 2018
Equity [Abstract]
Convertible Preferred Stock	Convertible Preferred Stock As of January 31, 2018 , convertible preferred stock was as follows: Series Shares Authorized Shares Issued and Outstanding Aggregate Liquidation Preference (in thousands) Carrying Value (in thousands) Liquidation Preference Prices per Share Conversion Price per Share Annual Dividend per Share (if declared) Liquidation Participation Cap per Share A 6,075,000 6,075,000 $ 486 $ 480 $ 0.08 $ 0.08 $ 0.0064 $ 0.16 A-1 500,000 500,000 80 80 0.16 0.16 0.0128 0.32 A-2 2,750,000 2,750,000 550 550 0.20 0.195434 0.016 0.40 A-3 2,000,000 2,000,000 500 500 0.25 0.23685 0.02 0.50 A-4 9,859,270 9,859,270 2,751 2,751 0.279 0.260872 0.0224 0.558 Total Series A 21,184,270 21,184,270 $ 4,367 $ 4,361 B 7,208,430 7,208,430 1,250 1,218 0.173408 0.173408 0.0138 0.346816 C 5,284,990 5,147,720 $ 1,500 $ 1,476 0.29139 0.29139 0.0234 0.58278 C-1 1,531,580 1,531,580 1,000 977 0.65292 0.65292 0.0522 1.30584 Total Series C 6,816,570 6,679,300 $ 2,500 $ 2,453 D 14,780,400 14,780,400 $ 17,500 $ 17,342 1.184 1.184 0.0948 N/A E 11,432,303 11,432,303 $ 35,000 $ 34,886 3.0615 3.0615 0.2449 N/A F 6,334,674 6,334,674 $ 52,600 $ 52,427 $ 8.3035 $ 8.3035 $ 0.66428 N/A Total all series 67,756,647 67,619,377 $ 113,217 $ 112,687 Immediately prior to the closing of the IPO on May 1, 2018, all shares of our outstanding convertible preferred stock automatically converted into an aggregate of 68.5 million shares of Class B common stock. There was no convertible preferred stock outstanding at October 31, 2018 .

Convertible Preferred Stock War

Convertible Preferred Stock Warrant	9 Months Ended
	Oct. 31, 2018
Equity [Abstract]
Convertible Preferred Stock Warrant	Convertible Preferred Stock Warrant In 2011, the Company issued a warrant to purchase 137,270 shares of Series C convertible preferred stock in c onnection with a loan and security agreeme nt with Silicon Valley Bank (“SVB”). The warrant had a 10 -year term and an exercise price of $0.29139 per share. The fair value was determined using the Black-Scholes model and was $1.3 million as of January 31, 2018 . This warrant was subject to remeasurement at each reporting period resulting in fair value of $2.6 million as of April 30, 2018 and the corresponding charge to interest income (expense) and other, net of $1.3 million for the three months ended April 30, 2018 . On April 27, 2018, SVB contingently exercised its right to convert the preferred stock warrant in a “net exercise,” under which the number of issuable shares was reduced by the number of shares with an aggregate fair market value equal to the exercise price of the warrant, resulting in 2,667 shares surrendered and 134,603 shares offered in the IPO. The exercise and settlement of the underlying shares were conditional and were not executed until the closing of the IPO on May 1, 2018. There were no convertible preferred stock warrants outstanding at October 31, 2018 .

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Oct. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Share-Based Compensation The Company has issued incentive and non-qualifying stock options to employees and non-employee directors under the 2005 Stock Option/Restricted Stock Plan (the “2005 Plan”), the 2015 Equity Incentive Plan (the “2015 Plan”), and the 2018 Equity Incentive Plan (the “2018 Plan”). The Company has also issued RSUs to employees pursuant to the 2015 Plan and the 2018 Plan. As of October 31, 2018 and January 31, 2018 , an aggregate of 0 and 296,178 , respectively, shares of common stock were available for issuance under the 2015 Plan. As of October 31, 2018 and January 31, 2018 , an aggregate of 8,483,247 and 0 , respectively, shares of common stock were available for issuance under the 2018 Plan. Stock options are granted with exercise prices at the fair value of the underlying common stock on the grant date, in general vest based on continuous employment over four years, and expire 10 years from the date of grant. RSUs are measured based on the grant date fair value of the awards, in general vest based on continuous employment over four years, and expire 10 years from the date of grant. Share-based compensation expense Share-based compensation expense included in the condensed consolidated statements of operations was as follows (in thousands): Three Months Ended October 31, Nine Months Ended October 31, 2018 2017 2018 2017 Cost of subscription revenue $ 96 $ 13 $ 214 $ 85 Cost of professional services revenue 149 17 346 49 Research and development 2,552 370 4,596 5,777 Sales and marketing 1,973 408 3,856 1,377 General and administrative 1,274 240 2,972 10,295 Total share-based compensation $ 6,044 $ 1,048 $ 11,984 $ 17,583 In the three months ended July 31, 2017, subsequent to the sale of the Company’s Series F convertible preferred stock, the Company facilitated a tender offer (the “2017 Tender Offer”) in which certain of the Company’s current and former employees and directors sold shares of common and convertible preferred stock to other existing shareholders. The sale of shares by the employees, directors, and other shareholders was facilitated by the Company. A total of 6,477,843 shares of common and convertible preferred stock were tendered for a total purchase price of $55.0 million . The premium over the fair value of the shares of common and convertible preferred stock that was paid by existing investors to current employees and directors, totaling $15.5 million , was recorded as share-based compensation expense for the three months ended July 31, 2017. The excess over the fair value of the sale price of the shares of common and convertible preferred stock sold by non-employees, totaling $4.6 million , was recorded as a deemed dividend within additional paid-in capital in the three months ended July 31, 2017. Share-based compensation expense related to the 2017 Tender Offer, which is included in the table above, was as follows (in thousands): Three Months Ended October 31, Nine Months Ended October 31, 2018 2017 2018 2017 (in thousands) Cost of subscription revenue $ — $ — $ — $ 53 Cost of professional services revenue — — — 9 Research and development — — — 5,124 Sales and marketing — — — 583 General and administrative — — — 9,701 Total share-based compensation expense $ — $ — $ — $ 15,470 Stock options The following table includes a summary of the option activity during the nine months ended October 31, 2018 : Options Outstanding Weighted-Average Exercise Price Outstanding at January 31, 2018 13,355,439 $ 2.91 Granted 4,216,470 10.72 Exercised and awarded (2,355,389 ) 1.14 Forfeited or canceled (930,526 ) 5.69 Outstanding at October 31, 2018 14,285,994 5.33 Exercisable at October 31, 2018 5,738,375 2.57 Restricted stock units The following table includes a summary of the RSU activity during the nine months ended October 31, 2018: Number of Shares Underlying Outstanding RSUs Weighted-Average Grant-Date Fair Value per RSU Outstanding at January 31, 2018 130,000 $ 9.45 Granted 534,502 26.49 Vested — — Forfeited or canceled (7,515 ) 25.08 Outstanding at October 31, 2018 656,987 23.13 2018 Employee Stock Purchase Plan In April 2018, we adopted our 2018 Employee Stock Purchase Plan (“ESPP”). The ESPP became effective on April 26, 2018, with the effective date of our IPO. Our ESPP is intended to qualify as an employee stock purchase plan under Section 423 of the Internal Revenue Code of 1986, as amended. Purchases are accomplished through participation in discrete offering periods. Each offering period is six months (commencing each March 25 and September 25) and consists of one six -month purchase period, unless otherwise determined by our board of directors or our compensation committee. Under our ESPP, eligible employees are able to acquire shares of our common stock by accumulating funds through payroll deductions. Our employees generally are eligible to participate in our ESPP if they are employed by us for at least 20 hours per week and more than five months in a calendar year. Employees who are 5% shareholders, or would become 5% shareholders as a result of their participation in our ESPP, are ineligible to participate in our ESPP. We may impose additional restrictions on eligibility. Our eligible employees are able to select a rate of payroll deduction between 1% and 15% of their compensation. The purchase price for shares of our common stock purchased under our ESPP is 85% of the lesser of the fair market value of our common stock on (i) the first trading day of the applicable offering period or (ii) the last trading day of the purchase period in the applicable offering period. No participant has the right to purchase shares of our common stock in an amount, when aggregated with purchase rights under all of our employee stock purchase plans that are also in effect in the same calendar year(s), that has a cumulative fair market value of more than $25,000 , determined as of the first day of the applicable purchase period, for each calendar year in which that right is outstanding. In addition, no participant is permitted to purchase more than 2,500 shares during any one purchase period or such lesser amount determined by our compensation committee or our board of directors. An employee’s participation automatically ends upon termination of employment for any reason. We initially reserved 2,040,000 shares of our Class A common stock for sale under our ESPP, of which 320,218 shares were issued in our initial ESPP offering period. As of October 31, 2018 an aggregate of 1,719,782 shares remained available for issuance under this plan. The aggregate number of shares reserved for sale under our ESPP will increase automatically on February 1 of each of the first 10 calendar years after the first offering date under the ESPP by the number of shares equal to 1% of the total outstanding shares of our Class A common stock and Class B common stock as of the immediately preceding January 31 (rounded to the nearest whole share) or such lesser number of shares as may be determined by our board of directors in any particular year. The aggregate number of shares issued over the term of our ESPP, subject to stock-splits, recapitalizations or similar events, may not exceed 20,400,000 shares of our Class A common stock. As of October 31, 2018, $1.2 million has been withheld on behalf of employees for a future purchase under the ESPP and is recorded in accrued compensation and related benefits.

Income Taxes

Income Taxes	9 Months Ended
	Oct. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The income tax provision for interim tax periods is generally determined using an estimate of the Company’s annual effective tax rate, excluding jurisdictions for which no tax benefit can be recognized due to valuation allowances, and adjusted for discrete tax items in the period. Each quarter the Company updates its estimate of the annual effective tax rate and makes a cumulative adjustment if the estimated annual tax rate has changed. The Company’s effective tax rate generally differs from the U.S. federal statutory tax rate primarily due to a valuation allowance related to the Company’s U.S. federal and state deferred tax assets and non-deductible share-based compensation. The Company’s provision for income taxes for the three months ended October 31, 2018 was not significant to the Company’s operating results. The Company recorded a provision for income taxes of $0.1 million for the nine months ended October 31, 2018, primarily attributable to income taxes in foreign jurisdictions and state income taxes. The Company did no t record a provision for income taxes for the three or nine months ended October 31, 2017 .

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Oct. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Leases The Company has operating lease agreements for office spaces in Bellevue, Boston, London, and Edinburgh. The Bellevue lease agreements have various expiration dates through October 2026, the Boston lease agreements end in July 2025, the London lease agreement ends in September 2019, and the Edinburgh lease agreement ends in April 2021. Rent expense and related operating expenses for leased areas totaled $2.2 million and $1.4 million for the three months ended October 31, 2018 and 2017 , respectively, and $5.4 million and $3.6 million for the nine months ended October 31, 2018 and 2017 , respectively. During the year ended January 31, 2017 , the Company entered into a capital lease agreement for data center equipment. The total amount of the lease, including taxes, is $6.0 million . The effective interest rate on the lease is 5.3% , paid over 42 months. During the year ended January 31, 2018 , the Company entered into two capital lease agreements for data center equipment, which totaled $3.1 million, including taxes. The effective interest rates on the leases range from 5.0% to 5.1% , each paid over 36 months. During the nine months ended October 31, 2018 , the Company entered into four capital lease agreements for data center equipment, which totaled $2.6 million , including taxes. The effective interest rates on the leases range from 4.8% to 5.5% , each paid over 36 months . As of October 31, 2018 , future minimum annual lease payments (in thousands) related to the lease agreements mentioned above were as follows: Operating Leases Capital Leases Total Remainder of fiscal 2019 $ 1,373 $ 816 $ 2,189 Fiscal 2020 9,035 4,063 13,098 Fiscal 2021 9,443 1,776 11,219 Fiscal 2022 9,544 463 10,007 Fiscal 2023 9,738 — 9,738 Thereafter 22,884 — 22,884 Total minimum lease payments $ 62,017 $ 7,118 $ 69,135 Less: amount representing maintenance and support costs $ (108 ) Net minimum lease payments 7,010 Less: amount representing interest (346 ) Present value of minimum lease payments $ 6,664 As of October 31, 2018 and January 31, 2018 , we had collateralized letters of credit totaling $1.8 million and $2.4 million , respectively, related to the Company’s Bellevue and Boston leases, and $0.6 million and $0.5 million , respectively, related to security deposits for the Company’s leases in Bellevue, Boston, London, and Edinburgh. The amounts will decrease to $0 over the lease periods. Legal matters From time to time in the normal course of business, the Company may be subject to various legal matters such as threatened or pending claims or proceedings. We are not currently a party to any material legal proceedings or claims, nor are we aware of any pending or threatened litigation or claims that could have a material adverse effect on our business, operating results, cash flows, or financial condition should such litigation or claim be resolved unfavorably.

Geographic Information

Geographic Information	9 Months Ended
	Oct. 31, 2018
Segment Reporting [Abstract]
Geographic Information	Geographic Information Revenue by geographic location is determined by the location of the Company’s customers. The following table sets forth revenue (in thousands) by geographic area: Three Months Ended October 31, Nine Months Ended October 31, 2018 2017 2018 2017 United States $ 36,279 $ 21,674 $ 95,225 $ 57,187 EMEA 5,449 3,806 15,221 10,415 Asia Pacific 2,786 2,392 8,735 6,445 Americas other than the United States 2,354 1,516 6,390 4,243 Total $ 46,868 $ 29,388 $ 125,571 $ 78,290 No individual country other than the United States contributed more than 10% of total revenue during any of the periods presented. Property and equipment by geographic location is based on the location of the legal entity that owns the asset. As of October 31, 2018 and January 31, 2018 , there was no significant property and equipment owned by the Company outside of the United States.

Subsequent Events

Subsequent Events	9 Months Ended
	Oct. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company has evaluated subsequent events through December 10, 2018.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Oct. 31, 2018
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in th e United States of America (“GAAP”) , and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The condensed consolidated balance sheet as of January 31, 2018 was derived from the audited consolidated financial statements as of that date but does not include all of the information and notes required by GAAP for complete financial statements. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and the related notes thereto as of and for the year ended January 31, 2018, included in our final prospectus related to our IPO (“Prospectus”), filed with the SEC pursuant to Rule 424 (b) under the Securities Act of 1933, as amended (“the Securities Act”). The condensed consolidated financial statements include the results of Smartsheet Inc. and its wholly owned subsidiaries, which are located in the United States and the United Kingdom. All intercompany balances and transactions have been eliminated upon consolidation. In the opinion of management, the information contained herein reflects all adjustments necessary for a fair presentation of our results of operations, financial position, and cash flows. All such adjustments are of a normal, recurring nature. The results of operations for the three and nine months ended October 31, 2018 are not necessarily indicative of results to be expected for the full year ending January 31, 2019 or for any other interim period, or for any future year.
Use of estimates	Use of estimates The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenue and expenses during the reporting periods. 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 most significant estimates and judgments involve revenue recognition with respect to the allocation of transaction consideration for the Company’s offerings; determination of the amortization period for capitalized sales commission costs; valuation of the Company’s share-ba sed compensation, including the underlying deemed fair value of common stock (prior to the closing of the IPO); u seful lives of property and equipme nt, including useful lives of internal-use software development costs; calculation of allowance for doubtful accounts; inputs in revaluation of convertible preferred stock warrant (prior to the closing of the IPO); and valuation of deferred income tax assets and uncertain tax positions, among others.
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 for purposes of making operating decisions, assessing financial performance, and allocating resources.
Restricted cash	Restricted cash Restricted cash as of October 31, 2018 consisted of $1.8 million related to collateral for an irrevocable letter of credit (entered into during the nine months ended October 31, 2018 ) for additional office space in Bellevue, and $0.6 million primarily related to security deposits for the Company’s Bellevue, Boston, London, and Edinburgh leases. Restricted cash as of January 31, 2018 consisted of $2.4 million related to collateral for irrevocable letters of credit and $0.5 million related to security deposits. The letters of credit that were outstanding as of January 31, 2018 were still in effect as of October 31, 2018 ; however, the requirement to maintain $2.4 million in cash collateral for those letters of credit was removed during the nine months ended October 31, 2018 , and the restricted cash balance was reduced by this amount. Cash as reported on the condensed consolidated statements of cash flows includes the aggregate amounts of cash and cash equivalents and restricted cash as shown on the condensed consolidated balance sheets.
Deferred offering costs	Deferred offering costs Deferred offering costs of $3.4 million , primarily consisting of legal, accounting, and other fees related to the IPO, were offset against proceeds upon the closing of the IPO on May 1, 2018.
Convertible preferred stock warrant liability	Convertible preferred stock warrant liability The Company classified its warrant to purchase convertible preferred stock as a liability. The Company adjusted the carrying valu e of the warrant liability to fair value at the end of each reporting period utilizing the Black-Scholes option pricing model . The convertible preferred stock warrant liability was included on the Company’s condensed consolidated balance sheets and its revaluation was recorded as an expense in interest income (expense) and other, net. Upon the closing of the IPO on May 1, 2018, the related warrant liability was reclassified to additional paid-in capital.
Recently adopted accounting pronouncements	Recently adopted accounting pronouncements In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standard Update (“ASU”) 2016‑09, Compensation – Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, (“ASU 2016‑09”) , which simplifies the accounting and reporting of share-based payment transactions, including adjustments to how excess tax benefits and payments for tax withholdings should be classified, and provides the election to eliminate the estimate for forfeitures. The Company adopted this ASU effective February 1, 2018. The adoption resulted in the recognition of a U.S. deferred tax asset, which was fully offset by a corresponding increase to the valuation allowance on our U.S. federal and state deferred income tax assets, and therefore did not have a material impact on our condensed consolidated financial statements. The Company did not elect to eliminate the estimate for forfeitures. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (“ASU 2016-15”), which aims to reduce the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 requires adoption on a retrospective basis unless it is impracticable to apply, in which case the Company would be required to apply the amendments prospectively as of the earliest date practicable. The Company adopted this ASU effective February 1, 2018. The adoption of this ASU did not have a material effect on the Company’s condensed consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (“ASU 2016-18”). This guidance is intended to clarify how entities present restricted cash in the statement of cash flows. The guidance requires entities to show the changes in the total of cash, cash equivalents, and restricted cash in the statement of cash flows. When cash, cash equivalents, and restricted cash are presented in more than one line item on the balance sheet, the new guidance requires a reconciliation of the totals in the statement of cash flows to the related captions in the balance sheet. The reconciliation can be presented either on the face of the statement of cash flows or in the notes to the consolidated financial statements. ASU 2016-18 is effective for fiscal years beginning after December 15, 2018, but early adoption is permitted. The Company early adopted this ASU effective February 1, 2018, retrospectively applying the new guidance to the comparative period presented in our condensed consolidated statements of cash flows. As a result of the adoption of this ASU, because movements to and from cash and restricted cash are no longer shown separately on the condensed consolidated statements of cash flows, the Company’s cash provided from investing activities increased by $0.1 million for the nine months ended October 31, 2017. In January 2017, the FASB issued ASU 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment (“ASU 2017-04”) , which simplifies the measurement of goodwill impairment. Under this new guidance, an impairment charge, if triggered, is calculated as the difference between a reporting unit’s carrying value and fair value, but it is limited to the carrying value of goodwill. The guidance is effective prospectively for annual or any interim goodwill impairment tests in fiscal years beginning after December 15, 2019 and early adoption is permitted. The Company early adopted this guidance effective February 1, 2018 and applied the new guidance when evaluating goodwill for impairment during the three months ended October 31, 2018. In May 2017, the FASB issued ASU 2017-09, Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting (“ASU 2017-09”) , which clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The guidance is effective prospectively for interim and annual periods beginning after December 15, 2017 and early adoption is permitted. The Company adopted this guidance effective February 1, 2018. The adoption of this ASU did not have a material effect on the Company’s condensed consolidated financial statements. Recent accounting pronouncements not yet adopted In February 2016, the FASB issued ASU 2016-02, Leases: Topic (842) (“ASU 2016-02”) and has modified the standard thereafter. This standard requires the recognition of a right-of-use asset and lease liability on the balance sheet for all leases. This standard also requires more detailed disclosures to enable users of financial statements to understand the amount, timing, and uncertainty of cash flows arising from leases. This guidance is effective for interim and annual reporting periods beginning after December 15, 2018 and should be applied through a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, and early adoption is permitted. The Company expects to adopt this guidance on February 1, 2019. The Company anticipates this standard will have a material impact on the Company’s financial position, primarily due to its office space operating leases, as the Company will be required to recognize right-of-use assets and lease liabilities on the balance sheet. The Company continues to assess the potential impacts of this standard, including the impact the adoption of this guidance will have on its results of operations or its cash flows, if any. In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other-Internal-Use Software (“ASU 2018-15”) , which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. This guidance is effective for interim and annual reporting periods beginning after December 15, 2019, and early adoption is permitted. The Company is currently evaluating the impacts that adoption of this ASU will have on its condensed consolidated financial statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Oct. 31, 2018
Accounting Policies [Abstract]
Schedule of Cash and Cash Equivalents	Cash as reported on the condensed consolidated statements of cash flows consists of the following (in thousands): October 31, 2018 2017 Cash and cash equivalents $ 212,028 $ 70,546 Restricted cash 2,435 2,029 Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows $ 214,463 $ 72,575
Schedule of Restricted Cash and Cash Equivalents	Cash as reported on the condensed consolidated statements of cash flows consists of the following (in thousands): October 31, 2018 2017 Cash and cash equivalents $ 212,028 $ 70,546 Restricted cash 2,435 2,029 Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows $ 214,463 $ 72,575

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	9 Months Ended
	Oct. 31, 2018
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following tables present calculations for basic and diluted net loss per share (in thousands, except per share data): Three Months Ended October 31, 2018 2017 Numerator: Net loss attributable to common shareholders $ (15,569 ) $ (10,358 ) Denominator: Weighted-average common shares outstanding 102,822 19,101 Net loss per share, basic and diluted $ (0.15 ) $ (0.54 ) Nine Months Ended October 31, 2018 2017 Numerator: Net loss attributable to common shareholders $ (42,200 ) $ (44,950 ) Denominator: Weighted-average common shares outstanding 76,065 17,879 Net loss per share, basic and diluted $ (0.55 ) $ (2.51 )
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following outstanding shares of common stock equivalents (in thousands) as of the periods presented were excluded from the computation of diluted net loss per share attributable to common shareholders for the periods presented because the impact of including them would have been anti-dilutive: October 31, 2018 2017 Convertible preferred shares (as converted) — 68,420 Convertible preferred stock warrant — 137 Shares subject to outstanding common stock awards 14,943 13,644 Shares issuable pursuant to the Employee Stock Purchase Plan 59 — Total potentially dilutive shares 15,002 82,201

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Oct. 31, 2018
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables present information about the Company’s financial assets and liabilities that are measured at fair value and indicates the fair value hierarchy of the valuation inputs used (in thousands) as of: October 31, 2018 Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 205,447 $ — $ — $ 205,447 Restricted cash: Certificates of deposit — 1,766 — 1,766 Total assets $ 205,447 $ 1,766 $ — $ 207,213 January 31, 2018 Level 1 Level 2 Level 3 Total Assets: Cash equivalents: Money market funds $ 55,702 $ — $ — $ 55,702 Liabilities: Convertible preferred stock warrant liability $ — $ — $ 1,272 $ 1,272
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	Changes in fair value of our level 3 financial liabilities were as follows (in thousands): Balance as of January 31, 2018 $ 1,272 Increase in fair value of convertible preferred stock warrant 1,326 Transfer out of Level 3 (2,598 ) Balance as of October 31, 2018 $ —

Goodwill and Net Intangible A_2

Goodwill and Net Intangible Assets (Tables)	9 Months Ended
	Oct. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	The following table presents the components of net intangible assets (in thousands) as of: October 31, 2018 January 31, 2018 Acquired software technology $ 1,366 $ 1,366 Acquired customer relationships 70 70 Patents 170 170 Domain name 13 13 Total intangible assets 1,619 1,619 Less: accumulated amortization (454 ) (72 ) Total intangible assets, net $ 1,165 $ 1,547

Convertible Preferred Stock (Ta

Convertible Preferred Stock (Tables)	9 Months Ended
	Oct. 31, 2018
Equity [Abstract]
Schedule of Convertible Preferred Stock	As of January 31, 2018 , convertible preferred stock was as follows: Series Shares Authorized Shares Issued and Outstanding Aggregate Liquidation Preference (in thousands) Carrying Value (in thousands) Liquidation Preference Prices per Share Conversion Price per Share Annual Dividend per Share (if declared) Liquidation Participation Cap per Share A 6,075,000 6,075,000 $ 486 $ 480 $ 0.08 $ 0.08 $ 0.0064 $ 0.16 A-1 500,000 500,000 80 80 0.16 0.16 0.0128 0.32 A-2 2,750,000 2,750,000 550 550 0.20 0.195434 0.016 0.40 A-3 2,000,000 2,000,000 500 500 0.25 0.23685 0.02 0.50 A-4 9,859,270 9,859,270 2,751 2,751 0.279 0.260872 0.0224 0.558 Total Series A 21,184,270 21,184,270 $ 4,367 $ 4,361 B 7,208,430 7,208,430 1,250 1,218 0.173408 0.173408 0.0138 0.346816 C 5,284,990 5,147,720 $ 1,500 $ 1,476 0.29139 0.29139 0.0234 0.58278 C-1 1,531,580 1,531,580 1,000 977 0.65292 0.65292 0.0522 1.30584 Total Series C 6,816,570 6,679,300 $ 2,500 $ 2,453 D 14,780,400 14,780,400 $ 17,500 $ 17,342 1.184 1.184 0.0948 N/A E 11,432,303 11,432,303 $ 35,000 $ 34,886 3.0615 3.0615 0.2449 N/A F 6,334,674 6,334,674 $ 52,600 $ 52,427 $ 8.3035 $ 8.3035 $ 0.66428 N/A Total all series 67,756,647 67,619,377 $ 113,217 $ 112,687

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Oct. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Share-based Compensation Expense	Share-based compensation expense included in the condensed consolidated statements of operations was as follows (in thousands): Three Months Ended October 31, Nine Months Ended October 31, 2018 2017 2018 2017 Cost of subscription revenue $ 96 $ 13 $ 214 $ 85 Cost of professional services revenue 149 17 346 49 Research and development 2,552 370 4,596 5,777 Sales and marketing 1,973 408 3,856 1,377 General and administrative 1,274 240 2,972 10,295 Total share-based compensation $ 6,044 $ 1,048 $ 11,984 $ 17,583 Share-based compensation expense related to the 2017 Tender Offer, which is included in the table above, was as follows (in thousands): Three Months Ended October 31, Nine Months Ended October 31, 2018 2017 2018 2017 (in thousands) Cost of subscription revenue $ — $ — $ — $ 53 Cost of professional services revenue — — — 9 Research and development — — — 5,124 Sales and marketing — — — 583 General and administrative — — — 9,701 Total share-based compensation expense $ — $ — $ — $ 15,470
Schedule of Stock Option Activity	The following table includes a summary of the option activity during the nine months ended October 31, 2018 : Options Outstanding Weighted-Average Exercise Price Outstanding at January 31, 2018 13,355,439 $ 2.91 Granted 4,216,470 10.72 Exercised and awarded (2,355,389 ) 1.14 Forfeited or canceled (930,526 ) 5.69 Outstanding at October 31, 2018 14,285,994 5.33 Exercisable at October 31, 2018 5,738,375 2.57
Schedule of Restricted Stock Units Award Activity	The following table includes a summary of the RSU activity during the nine months ended October 31, 2018: Number of Shares Underlying Outstanding RSUs Weighted-Average Grant-Date Fair Value per RSU Outstanding at January 31, 2018 130,000 $ 9.45 Granted 534,502 26.49 Vested — — Forfeited or canceled (7,515 ) 25.08 Outstanding at October 31, 2018 656,987 23.13

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Oct. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	As of October 31, 2018 , future minimum annual lease payments (in thousands) related to the lease agreements mentioned above were as follows: Operating Leases Capital Leases Total Remainder of fiscal 2019 $ 1,373 $ 816 $ 2,189 Fiscal 2020 9,035 4,063 13,098 Fiscal 2021 9,443 1,776 11,219 Fiscal 2022 9,544 463 10,007 Fiscal 2023 9,738 — 9,738 Thereafter 22,884 — 22,884 Total minimum lease payments $ 62,017 $ 7,118 $ 69,135 Less: amount representing maintenance and support costs $ (108 ) Net minimum lease payments 7,010 Less: amount representing interest (346 ) Present value of minimum lease payments $ 6,664
Schedule of Future Minimum Lease Payments for Capital Leases	As of October 31, 2018 , future minimum annual lease payments (in thousands) related to the lease agreements mentioned above were as follows: Operating Leases Capital Leases Total Remainder of fiscal 2019 $ 1,373 $ 816 $ 2,189 Fiscal 2020 9,035 4,063 13,098 Fiscal 2021 9,443 1,776 11,219 Fiscal 2022 9,544 463 10,007 Fiscal 2023 9,738 — 9,738 Thereafter 22,884 — 22,884 Total minimum lease payments $ 62,017 $ 7,118 $ 69,135 Less: amount representing maintenance and support costs $ (108 ) Net minimum lease payments 7,010 Less: amount representing interest (346 ) Present value of minimum lease payments $ 6,664

Geographic Information (Tables)

Geographic Information (Tables)	9 Months Ended
	Oct. 31, 2018
Segment Reporting [Abstract]
Schedule of Revenue by Geographical Area	Revenue by geographic location is determined by the location of the Company’s customers. The following table sets forth revenue (in thousands) by geographic area: Three Months Ended October 31, Nine Months Ended October 31, 2018 2017 2018 2017 United States $ 36,279 $ 21,674 $ 95,225 $ 57,187 EMEA 5,449 3,806 15,221 10,415 Asia Pacific 2,786 2,392 8,735 6,445 Americas other than the United States 2,354 1,516 6,390 4,243 Total $ 46,868 $ 29,388 $ 125,571 $ 78,290

Overview and Basis of Present_2

Overview and Basis of Presentation (Details) $ / shares in Units, $ in Thousands	May 01, 2018USD ($)$ / sharesshares	Oct. 31, 2018USD ($)shares	Oct. 31, 2017USD ($)	Apr. 30, 2018shares	Jan. 31, 2018shares
Class of Stock [Line Items]
Proceeds from initial public offering, net of underwriters' discounts and commissions | $		$ 163,844	$ 0
Common stock authorized (in shares)		0			107,679,381
Preferred stock authorized (in shares)	10,000,000	10,000,000			0
Duration from date of IPO		7 years
Percent of stock outstanding (less than)		15.00%
Common Class A
Class of Stock [Line Items]
Common stock authorized (in shares)	500,000,000	500,000,000		112,979,381	0
Votes per share (in votes)		1
Number of shares from automatic conversion (in shares)		1
Common Class B
Class of Stock [Line Items]
Number of shares issued in conversion (in shares)	68,500,000
Common stock authorized (in shares)		500,000,000		112,979,381,000	0
Votes per share (in votes)		10
IPO | Common Class A
Class of Stock [Line Items]
Shares issued and sold (in shares)	11,745,088
Offering price (in dollars per share) | $ / shares	$ 15
Proceeds from initial public offering, net of underwriters' discounts and commissions | $	$ 160,400
Underwriting discounts and commissions | $	12,300
Other issuance costs | $	$ 3,400

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Narrative (Details)	9 Months Ended
	Oct. 31, 2018USD ($)segment	Oct. 31, 2017USD ($)	May 01, 2018USD ($)	Jan. 31, 2018USD ($)
Lessee, Lease, Description [Line Items]
Number of operating segments | segment	1
Deferred offering costs capitalized			$ 3,400,000
Internal use software costs capitalized	$ 2,500,000	$ 2,700,000
Costs incurred during development for platform to sell subscriptions	1,000,000	0
Investing activity increase	(6,528,000)	3,236,000
Bellevue and Boston Leases
Lessee, Lease, Description [Line Items]
Security deposits	600,000			$ 500,000
Financial Standby Letter of Credit | Bellevue and Boston Leases
Lessee, Lease, Description [Line Items]
Irrevocable letters of credit	$ 1,800,000			$ 2,400,000
Accounting Standards Update 2016-18
Lessee, Lease, Description [Line Items]
Investing activity increase		$ 100,000
Software
Lessee, Lease, Description [Line Items]
Software useful life	3 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Jan. 31, 2018	Oct. 31, 2017	Jan. 31, 2017
Accounting Policies [Abstract]
Cash and cash equivalents	$ 212,028	$ 58,158	$ 70,546
Restricted cash	2,435		2,029
Total cash, cash equivalents, and restricted cash shown in the condensed consolidated statement of cash flows	$ 214,463	$ 61,059	$ 72,575	$ 24,013

Revenue from Contracts with C_2

Revenue from Contracts with Customers - Deferred Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017
Revenue from External Customer [Line Items]
Deferred revenue	$ 84.2		$ 84.2
Subscription
Revenue from External Customer [Line Items]
Revenue recognized included in deferred revenue	31.7	$ 19.4	51.8	$ 29.6
Deferred revenue	82.3		82.3
Professional services
Revenue from External Customer [Line Items]
Revenue recognized included in deferred revenue	1.4	$ 1	1.1	$ 0.6
Deferred revenue	$ 1.9		$ 1.9

Revenue from Contracts with C_3

Revenue from Contracts with Customers - Revenue Recognition (Details) $ in Millions	Oct. 31, 2018USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred revenue future recognition	$ 84.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-08-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred revenue future recognition	$ 83.9

Deferred Commissions (Details)

Deferred Commissions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017	Jan. 31, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Deferred commissions	$ 24,349		$ 24,349		$ 15,291
Amortization of deferred commission costs	$ 2,800	$ 1,400	$ 7,342	$ 3,293
Deferred commissions amortized period			3 years

Net Loss Per Share - Schedule o

Net Loss Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017
Numerator:
Net loss attributable to common shareholders	$ (15,569)	$ (10,358)	$ (42,200)	$ (44,950)
Denominator:
Weighted-average common shares outstanding (in shares)	102,822	19,101	76,065	17,879
Net loss per share, basic and diluted (in dollars per share)	$ (0.15)	$ (0.54)	$ (0.55)	$ (2.51)

Net Loss Per Share - Schedule_2

Net Loss Per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares shares in Thousands	9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares	15,002	82,201
Total all series
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares	0	68,420
Shares subject to outstanding common stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares	14,943	13,644
Shares issuable pursuant to the Employee Stock Purchase Plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares	59	0
Total all series | Convertible preferred stock warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive shares	0	137

Investments (Details)

Investments (Details) - USD ($)	Oct. 31, 2018	Jan. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Available-for-sale securities	$ 0	$ 0

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Jan. 31, 2018
Liabilities:
Convertible preferred stock warrant liability		$ 1,300
Fair Value, Measurements, Recurring
Cash equivalents:
Total assets	$ 207,213
Liabilities:
Convertible preferred stock warrant liability		1,272
Fair Value, Measurements, Recurring | Level 1
Cash equivalents:
Total assets	205,447
Liabilities:
Convertible preferred stock warrant liability		0
Fair Value, Measurements, Recurring | Level 2
Cash equivalents:
Total assets	1,766
Liabilities:
Convertible preferred stock warrant liability		0
Fair Value, Measurements, Recurring | Level 3
Cash equivalents:
Total assets	0
Money market funds | Fair Value, Measurements, Recurring
Cash equivalents:
Cash equivalents and restricted cash	205,447	55,702
Money market funds | Fair Value, Measurements, Recurring | Level 1
Cash equivalents:
Cash equivalents and restricted cash	205,447	55,702
Money market funds | Fair Value, Measurements, Recurring | Level 2
Cash equivalents:
Cash equivalents and restricted cash	0	0
Money market funds | Fair Value, Measurements, Recurring | Level 3
Cash equivalents:
Cash equivalents and restricted cash	0	0
Certificates of deposit | Fair Value, Measurements, Recurring
Cash equivalents:
Cash equivalents and restricted cash	1,766
Certificates of deposit | Fair Value, Measurements, Recurring | Level 1
Cash equivalents:
Cash equivalents and restricted cash	0
Certificates of deposit | Fair Value, Measurements, Recurring | Level 2
Cash equivalents:
Cash equivalents and restricted cash	1,766
Certificates of deposit | Fair Value, Measurements, Recurring | Level 3
Cash equivalents:
Cash equivalents and restricted cash	$ 0
Warrants Not Settleable in Cash | Fair Value, Measurements, Recurring | Level 3
Liabilities:
Convertible preferred stock warrant liability		$ 1,272

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) $ in Millions	Apr. 30, 2018USD ($)
Fair Value Disclosures [Abstract]
Transfer out of level 3 to level 2 liabilities	$ 2.6

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Oct. 31, 2018
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Transfer out of Level 3	$ (2,600)
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value beginning balance		$ 1,272
Increase in fair value of convertible preferred stock warrant		1,326
Transfer out of Level 3		(2,598)
Fair value ending balance		$ 0

Goodwill and Net Intangible A_3

Goodwill and Net Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	Dec. 28, 2017	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017	Jan. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 532		$ 532		$ 445
Amortization expense		$ 127	$ 4	$ 382	$ 10
Converse.AI, Inc.
Business Acquisition [Line Items]
Percent of stock acquired	100.00%
Goodwill	$ 500
Goodwill, measurement period adjustment	100
Identifiable intangible assets	$ 1,400

Goodwill and Net Intangible A_4

Goodwill and Net Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Jan. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	$ 1,619	$ 1,619
Less: accumulated amortization	(454)	(72)
Total intangible assets, net	1,165	1,547
Acquired software technology
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	1,366	1,366
Acquired customer relationships
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	70	70
Patents
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	170	170
Domain name
Finite-Lived Intangible Assets [Line Items]
Total intangible assets	$ 13	$ 13

Convertible Preferred Stock (De

Convertible Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2018
Class of Stock [Line Items]
Shares Authorized (in shares)		67,756,647	0
Shares Issued (in shares)		67,619,377	0
Shares Outstanding (in shares)		67,619,377	0
Aggregate Liquidation Preference		$ 113,217
Carrying Value		$ 112,687	$ 0
Total all series
Class of Stock [Line Items]
Shares Authorized (in shares)		67,756,647
Shares Issued (in shares)		67,619,377
Shares Outstanding (in shares)		67,619,377	0
Aggregate Liquidation Preference		$ 113,217
Carrying Value		$ 112,687
Total Series A
Class of Stock [Line Items]
Shares Authorized (in shares)		21,184,270
Shares Issued (in shares)		21,184,270
Shares Outstanding (in shares)		21,184,270
Aggregate Liquidation Preference		$ 4,367
Carrying Value		$ 4,361
A
Class of Stock [Line Items]
Shares Authorized (in shares)		6,075,000
Shares Issued (in shares)		6,075,000
Shares Outstanding (in shares)		6,075,000
Aggregate Liquidation Preference		$ 486
Carrying Value		$ 480
Liquidation Preference Prices per Share (in dollars per share)		$ 0.0800
Conversion Price per Share (in dollars per share)		0.0800
Annual Dividend per Share (if declared) (in dollars per share)		0.0064
Liquidation Participation Cap per Share (in dollars per share)		$ 0.16
A1
Class of Stock [Line Items]
Shares Authorized (in shares)		500,000
Shares Issued (in shares)		500,000
Shares Outstanding (in shares)		500,000
Aggregate Liquidation Preference		$ 80
Carrying Value		$ 80
Liquidation Preference Prices per Share (in dollars per share)		$ 0.1600
Conversion Price per Share (in dollars per share)		0.1600
Annual Dividend per Share (if declared) (in dollars per share)		0.0128
Liquidation Participation Cap per Share (in dollars per share)		$ 0.32
A2
Class of Stock [Line Items]
Shares Authorized (in shares)		2,750,000
Shares Issued (in shares)		2,750,000
Shares Outstanding (in shares)		2,750,000
Aggregate Liquidation Preference		$ 550
Carrying Value		$ 550
Liquidation Preference Prices per Share (in dollars per share)		$ 0.2000
Conversion Price per Share (in dollars per share)		0.195434
Annual Dividend per Share (if declared) (in dollars per share)		0.0160
Liquidation Participation Cap per Share (in dollars per share)		$ 0.40
A3
Class of Stock [Line Items]
Shares Authorized (in shares)		2,000,000
Shares Issued (in shares)		2,000,000
Shares Outstanding (in shares)		2,000,000
Aggregate Liquidation Preference		$ 500
Carrying Value		$ 500
Liquidation Preference Prices per Share (in dollars per share)		$ 0.2500
Conversion Price per Share (in dollars per share)		0.23685
Annual Dividend per Share (if declared) (in dollars per share)		0.0200
Liquidation Participation Cap per Share (in dollars per share)		$ 0.50
A4
Class of Stock [Line Items]
Shares Authorized (in shares)		9,859,270
Shares Issued (in shares)		9,859,270
Shares Outstanding (in shares)		9,859,270
Aggregate Liquidation Preference		$ 2,751
Carrying Value		$ 2,751
Liquidation Preference Prices per Share (in dollars per share)		$ 0.2790
Conversion Price per Share (in dollars per share)		0.260872
Annual Dividend per Share (if declared) (in dollars per share)		0.0224
Liquidation Participation Cap per Share (in dollars per share)		$ 0.558
B
Class of Stock [Line Items]
Shares Authorized (in shares)		7,208,430
Shares Issued (in shares)		7,208,430
Shares Outstanding (in shares)		7,208,430
Aggregate Liquidation Preference		$ 1,250
Carrying Value		$ 1,218
Liquidation Preference Prices per Share (in dollars per share)		$ 0.173408
Conversion Price per Share (in dollars per share)		0.173408
Annual Dividend per Share (if declared) (in dollars per share)		0.0138
Liquidation Participation Cap per Share (in dollars per share)		$ 0.346816
Total Series C
Class of Stock [Line Items]
Shares Authorized (in shares)		6,816,570
Shares Issued (in shares)		6,679,300
Shares Outstanding (in shares)		6,679,300
Aggregate Liquidation Preference		$ 2,500
Carrying Value		$ 2,453
C
Class of Stock [Line Items]
Shares Authorized (in shares)		5,284,990
Shares Issued (in shares)		5,147,720
Shares Outstanding (in shares)		5,147,720
Aggregate Liquidation Preference		$ 1,500
Carrying Value		$ 1,476
Liquidation Preference Prices per Share (in dollars per share)		$ 0.29139
Conversion Price per Share (in dollars per share)		0.29139
Annual Dividend per Share (if declared) (in dollars per share)		0.0234
Liquidation Participation Cap per Share (in dollars per share)		$ 0.58278
C1
Class of Stock [Line Items]
Shares Authorized (in shares)		1,531,580
Shares Issued (in shares)		1,531,580
Shares Outstanding (in shares)		1,531,580
Aggregate Liquidation Preference		$ 1,000
Carrying Value		$ 977
Liquidation Preference Prices per Share (in dollars per share)		$ 0.65292
Conversion Price per Share (in dollars per share)		0.65292
Annual Dividend per Share (if declared) (in dollars per share)		0.0522
Liquidation Participation Cap per Share (in dollars per share)		$ 1.30584
D
Class of Stock [Line Items]
Shares Authorized (in shares)		14,780,400
Shares Issued (in shares)		14,780,400
Shares Outstanding (in shares)		14,780,400
Aggregate Liquidation Preference		$ 17,500
Carrying Value		$ 17,342
Liquidation Preference Prices per Share (in dollars per share)		$ 1.1840
Conversion Price per Share (in dollars per share)		1.184
Annual Dividend per Share (if declared) (in dollars per share)		$ 0.0948
E
Class of Stock [Line Items]
Shares Authorized (in shares)		11,432,303
Shares Issued (in shares)		11,432,303
Shares Outstanding (in shares)		11,432,303
Aggregate Liquidation Preference		$ 35,000
Carrying Value		$ 34,886
Liquidation Preference Prices per Share (in dollars per share)		$ 3.0615
Conversion Price per Share (in dollars per share)		3.0615
Annual Dividend per Share (if declared) (in dollars per share)		$ 0.2449
F
Class of Stock [Line Items]
Shares Authorized (in shares)		6,334,674
Shares Issued (in shares)		6,334,674
Shares Outstanding (in shares)		6,334,674
Aggregate Liquidation Preference		$ 52,600
Carrying Value		$ 52,427
Liquidation Preference Prices per Share (in dollars per share)		$ 8.3035
Conversion Price per Share (in dollars per share)		8.3035
Annual Dividend per Share (if declared) (in dollars per share)		$ 0.66428
Common Class B
Class of Stock [Line Items]
Shares converted (in shares)	68,500,000

Convertible Preferred Stock W_2

Convertible Preferred Stock Warrant (Details) - USD ($) $ / shares in Units, $ in Millions	May 01, 2018	Apr. 30, 2018	Dec. 31, 2011	Jan. 31, 2018
Class of Stock [Line Items]
Shares purchased with warrant (in shares)			137,270
Warrant term			10 years
Exercise price (in dollars per share)			$ 0.29139
Warrant fair value				$ 1.3
Warrant fair value after remeasurement		$ 2.6
Interest income from charge on warrant remeasurement		$ 1.3
Shares surrendered (in shares)	2,667
Series C
Class of Stock [Line Items]
Shares offered (in shares)	134,603

Share-Based Compensation - Shar

Share-Based Compensation - Share-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Jul. 31, 2017	Oct. 31, 2018	Oct. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	$ 6,044	$ 1,048		$ 11,984	$ 17,583
Cost of subscription revenue
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	96	13		214	85
Cost of professional services revenue
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	149	17		346	49
Research and development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	2,552	370		4,596	5,777
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	1,973	408		3,856	1,377
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	1,274	240		2,972	10,295
2017 Tender Offer
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	0	0	$ 15,500	0	15,470
2017 Tender Offer | Cost of subscription revenue
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	0	0		0	53
2017 Tender Offer | Cost of professional services revenue
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	0	0		0	9
2017 Tender Offer | Research and development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	0	0		0	5,124
2017 Tender Offer | Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	0	0		0	583
2017 Tender Offer | General and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	$ 0	$ 0		$ 0	$ 9,701

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Options (Details) - Stock Option	9 Months Ended
	Oct. 31, 2018$ / sharesshares
Options Outstanding
Outstanding beginning balance (in shares) | shares	13,355,439
Granted (in shares) | shares	4,216,470
Exercised and awarded (in shares) | shares	(2,355,389)
Forfeited or canceled (in shares) | shares	(930,526)
Outstanding ending balance (in shares) | shares	14,285,994
Exercisable (in shares) | shares	5,738,375
Weighted-Average Exercise Price
Outstanding beginning balance (in dollars per share) | $ / shares	$ 2.91
Granted (in dollars per share) | $ / shares	10.72
Exercised and awarded (in dollars per share) | $ / shares	1.14
Forfeited or canceled (in dollars per share) | $ / shares	5.69
Outstanding ending balance (in dollars per share) | $ / shares	5.33
Exercisable at October 31, 2018 (in dollars per share) | $ / shares	$ 2.57

Share-Based Compensation - Rest

Share-Based Compensation - Restricted Stock Units (Details) - RSUs	9 Months Ended
	Oct. 31, 2018$ / sharesshares
Number of Shares Underlying Outstanding RSUs
Outstanding beginning balance (in shares) | shares	130,000
Granted (in shares) | shares	534,502
Vested (in shares) | shares	0
Forfeited or canceled (in shares) | shares	(7,515)
Outstanding ending balance (in shares) | shares	656,987
Weighted-Average Grant-Date Fair Value per RSU
Outstanding beginning balance (in dollars per share) | $ / shares	$ 9.45
Granted (in dollars per share) | $ / shares	26.49
Vested (in dollars per share) | $ / shares	0
Forfeited or canceled (in dollars per share) | $ / shares	25.08
Outstanding ending balance (in dollars per share) | $ / shares	$ 23.13

Share-Based Compensation - Narr

Share-Based Compensation - Narrative (Details)	3 Months Ended			9 Months Ended
	Oct. 31, 2018USD ($)shares	Oct. 31, 2017USD ($)	Jul. 31, 2017USD ($)shares	Oct. 31, 2018USD ($)purchase_periodhourshares	Oct. 31, 2017USD ($)	Jan. 31, 2018shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deemed dividend | $	$ 0	$ 0		$ 0	$ (4,558,000)
Share-based compensation | $	$ 6,044,000	1,048,000		$ 11,984,000	17,583,000
2015 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance (in shares)	0			0		296,178
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance (in shares)	8,483,247			8,483,247		0
2018 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Offering period				6 months
Number of purchase periods | purchase_period				1
Purchase period				6 months
Minimum number of hours per week to be eligible | hour				20
Minimum months in a calendar year to be eligible				5 months
Stockholder percent ownership				5.00%
Purchase price percent				85.00%
Maximum fair market value allowed to be purchased by a participant in a calendar year | $	$ 25,000			$ 25,000
Maximum number of shares allowed to be purchased by a participant in any purchase period	2,500			2,500
Share-based compensation | $				$ 1,200,000
2018 Employee Stock Purchase Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allowable payroll deduction as a percent of base cash compensation				1.00%
2018 Employee Stock Purchase Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allowable payroll deduction as a percent of base cash compensation				15.00%
Common Class A | 2018 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares initially reserved (in shares)	2,040,000			2,040,000
Number of shares issued during initial offering period (in shares)				320,218
Number of shares available for issuance (in shares)	1,719,782			1,719,782
Period in which shares authorized increase				10 years
Maximum number of shares authorized (in shares)	20,400,000			20,400,000
Common Class A and B | 2018 Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of shares outstanding				1.00%
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				4 years
Expiration period				10 years
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				4 years
Expiration period				10 years
2017 Tender Offer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued and sold (in shares)			6,477,843
Total purchase price | $			$ 55,000,000
Deemed dividend | $			4,600,000
Share-based compensation | $	$ 0	$ 0	$ 15,500,000	$ 0	$ 15,470,000

Income Taxes (Details)

Income Taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 22,000	$ 0	$ 110,000	$ 0

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 31, 2018USD ($)	Oct. 31, 2017USD ($)	Oct. 31, 2018USD ($)capital_lease	Oct. 31, 2017USD ($)	Jan. 31, 2018USD ($)capital_lease	Jan. 31, 2017USD ($)
Lessee, Lease, Description [Line Items]
Rent expense and related expenses	$ 2,200,000	$ 1,400,000	$ 5,400,000	$ 3,600,000
Lease amount	7,118,000		7,118,000
Irrevocable letters of credit and security deposits at end of lease	0		0
Data Center Equipment
Lessee, Lease, Description [Line Items]
Lease amount	2,600,000		$ 2,600,000		$ 3,100,000	$ 6,000,000
Interest rate						5.30%
Lease term			36 months		36 months	42 months
Number of additional leases | capital_lease			4		2
Minimum | Data Center Equipment
Lessee, Lease, Description [Line Items]
Interest rate			4.80%		5.00%
Maximum | Data Center Equipment
Lessee, Lease, Description [Line Items]
Interest rate			5.50%		5.10%
Bellevue and Boston Leases
Lessee, Lease, Description [Line Items]
Security deposits	600,000		$ 600,000		$ 500,000
Bellevue and Boston Leases | Financial Standby Letter of Credit
Lessee, Lease, Description [Line Items]
Irrevocable letters of credit	1,800,000		1,800,000		2,400,000
Bellevue, Boston, London and Edinburgh Leases
Lessee, Lease, Description [Line Items]
Security deposits	$ 600,000		$ 600,000		$ 500,000

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Future Payments for Operating and Capital Leases (Details) $ in Thousands	Oct. 31, 2018USD ($)
Operating Leases
Remainder of fiscal 2019	$ 1,373
Fiscal 2,020	9,035
Fiscal 2,021	9,443
Fiscal 2,022	9,544
Fiscal 2,023	9,738
Thereafter	22,884
Total minimum lease payments	62,017
Capital Leases
Remainder of fiscal 2019	816
Fiscal 2,020	4,063
Fiscal 2,021	1,776
Fiscal 2,022	463
Fiscal 2,023	0
Thereafter	0
Total minimum lease payments	7,118
Less: amount representing maintenance and support costs	(108)
Net minimum lease payments	7,010
Less: amount representing interest	(346)
Present value of minimum lease payments	6,664
Total
Remainder of fiscal 2019	2,189
Fiscal 2,020	13,098
Fiscal 2,021	11,219
Fiscal 2,022	10,007
Fiscal 2,023	9,738
Thereafter	22,884
Total minimum lease payments	$ 69,135

Geographic Information (Details

Geographic Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 46,868	$ 29,388	$ 125,571	$ 78,290
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	36,279	21,674	95,225	57,187
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	5,449	3,806	15,221	10,415
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	2,786	2,392	8,735	6,445
Americas other than the United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 2,354	$ 1,516	$ 6,390	$ 4,243