Workday (WDAY) 10-Q 28 Aug 20 2021 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares shares in Millions	6 Months Ended
	Jul. 31, 2020	Aug. 26, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jul. 31, 2020
Document Transition Report	false
Entity File Number	001-35680
Entity Registrant Name	WORKDAY, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-2480422
Entity Address, Address Line One	6110 Stoneridge Mall Road
Entity Address, City or Town	Pleasanton
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94588
City Area Code	925
Local Phone Number	951-9000
Title of 12(b) Security	Class A Common Stock, par value $0.001
Trading Symbol	WDAY
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001327811
Current Fiscal Year End Date	--01-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Class A
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		177
Class B
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		60

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Current assets:
Cash and cash equivalents	$ 1,239,696	$ 731,141
Marketable securities	1,513,842	1,213,432
Trade and other receivables, net	694,289	877,578
Deferred costs	105,350	100,459
Prepaid expenses and other current assets	161,004	172,012
Total current assets	3,714,181	3,094,622
Property and equipment, net	957,434	936,179
Operating lease right-of-use assets	324,655	290,902
Deferred costs, noncurrent	223,996	222,395
Acquisition-related intangible assets, net	276,847	308,401
Goodwill	1,819,261	1,819,261
Other assets	185,077	144,605
Total assets	7,501,451	6,816,365
Current liabilities:
Accounts payable	57,764	57,556
Accrued expenses and other current liabilities	125,784	130,050
Accrued compensation	252,814	248,154
Unearned revenue	2,003,455	2,223,178
Operating lease liabilities	75,798	66,147
Debt, current	37,500	244,319
Total current liabilities	2,553,115	2,969,404
Debt, noncurrent	1,752,004	1,017,967
Unearned revenue, noncurrent	64,465	86,025
Operating lease liabilities, noncurrent	271,607	241,425
Other liabilities	21,782	14,993
Total liabilities	4,662,973	4,329,814
Stockholders’ equity:
Common stock	238	231
Additional paid-in capital	5,954,738	5,090,187
Treasury stock	(303,201)	0
Accumulated other comprehensive income (loss)	646	23,492
Accumulated deficit	(2,813,943)	(2,627,359)
Total stockholders’ equity	2,838,478	2,486,551
Total liabilities and stockholders’ equity	$ 7,501,451	$ 6,816,365

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Revenues:
Total revenues		$ 1,061,967	$ 887,752	$ 2,080,352	$ 1,712,807
Costs and expenses:
Product development	[1]	418,681	378,122	862,165	725,953
Sales and marketing	[1]	276,497	280,200	595,054	553,136
General and administrative	[1]	99,266	85,593	194,437	170,048
Total costs and expenses		1,078,721	1,010,249	2,241,563	1,958,690
Operating income (loss)		(16,754)	(122,497)	(161,211)	(245,883)
Other income (expense), net		(11,453)	(106)	(22,426)	7,035
Loss before provision for (benefit from) income taxes		(28,207)	(122,603)	(183,637)	(238,848)
Provision for (benefit from) income taxes		(191)	(1,891)	2,747	(1,861)
Net loss		$ (28,016)	$ (120,712)	$ (186,384)	$ (236,987)
Net loss per share, basic and diluted (in dollars per share)		$ (0.12)	$ (0.53)	$ (0.79)	$ (1.05)
Weighted-average shares used to compute net loss per share, basic and diluted (in shares)		236,002	226,392	234,483	224,857
Subscription services
Revenues:
Total revenues		$ 931,698	$ 757,155	$ 1,813,654	$ 1,458,179
Costs and expenses:
Total costs and expenses	[1]	145,007	121,161	290,270	233,630
Professional services
Revenues:
Total revenues		130,269	130,597	266,698	254,628
Costs and expenses:
Total costs and expenses	[1]	$ 139,270	$ 145,173	$ 299,637	$ 275,923
[1]	(1) Costs and expenses include share-based compensation expenses as follows: Costs of subscription services $ 14,825 $ 12,001 $ 28,717 $ 22,416 Costs of professional services 24,552 18,991 47,118 35,141 Product development 128,505 105,758 250,527 196,995 Sales and marketing 49,854 42,690 96,804 81,544 General and administrative 33,500 29,781 64,742 58,360

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Costs of subscription services
Share-based compensation expense	$ 14,825	$ 12,001	$ 28,717	$ 22,416
Costs of professional services
Share-based compensation expense	24,552	18,991	47,118	35,141
Product development
Share-based compensation expense	128,505	105,758	250,527	196,995
Sales and marketing
Share-based compensation expense	49,854	42,690	96,804	81,544
General and administrative
Share-based compensation expense	$ 33,500	$ 29,781	$ 64,742	$ 58,360

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Statement of Comprehensive Income [Abstract]
Net loss	$ (28,016)	$ (120,712)	$ (186,384)	$ (236,987)
Other comprehensive (loss) income, net of tax:
Net change in foreign currency translation adjustment	1,684	53	437	(593)
Net change in unrealized gains (losses) on available-for-sale debt securities, net of tax provision of $0, $212, $0, and $431, respectively	(728)	889	2,246	1,592
Net change in market value of effective foreign currency forward exchange contracts, net of tax provision of $0, $2,629, $0, and $4,610, respectively	(57,836)	18,403	(25,529)	32,268
Other comprehensive (loss) income, net of tax	(56,880)	19,345	(22,846)	33,267
Comprehensive loss	$ (84,896)	$ (101,367)	$ (209,230)	$ (203,720)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Statement of Comprehensive Income [Abstract]
Unrealized gains (losses) on available for sale debt securities, tax	$ 0	$ 212	$ 0	$ 431
Foreign currency forward exchange contracts, tax	$ 0	$ 2,629	$ 0	$ 4,610

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Additional Paid-In CapitalCumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Accumulated DeficitCumulative Effect, Period of Adoption, Adjustment
Balance (in shares) at Jan. 31, 2019		222,052,063
Balance at Jan. 31, 2019		$ 221	$ 4,105,334	$ 381	$ 0	$ (809)	$ (2,146,304)	$ (381)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee equity plans		$ 6	61,534
Issuance of common stock under employee equity plans (in shares)		5,555,334
Settlement of convertible senior notes (in shares)		197
Share-based compensation			394,023
Net loss	$ (236,987)						(236,987)
Other comprehensive (loss) income	33,267					33,267
Balance (in shares) at Jul. 31, 2019		227,607,594
Balance at Jul. 31, 2019	2,210,285	$ 227	4,561,272		0	32,458	(2,383,672)
Balance (in shares) at Apr. 30, 2019		225,436,994
Balance at Apr. 30, 2019		$ 225	4,294,370		0	13,113	(2,262,960)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee equity plans		$ 2	58,083
Issuance of common stock under employee equity plans (in shares)		2,170,403
Settlement of convertible senior notes (in shares)		197
Share-based compensation			208,819
Net loss	(120,712)						(120,712)
Other comprehensive (loss) income	19,345					19,345
Balance (in shares) at Jul. 31, 2019		227,607,594
Balance at Jul. 31, 2019	2,210,285	$ 227	4,561,272		0	32,458	(2,383,672)
Balance (in shares) at Jan. 31, 2020		231,708,391
Balance at Jan. 31, 2020	2,486,551	$ 231	5,090,187		0	23,492	(2,627,359)	$ (200)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee equity plans		$ 5	74,512
Issuance of common stock under employee equity plans (in shares)		5,452,773
Exercise of convertible senior notes hedges			303,202		(303,201)
Settlement of convertible senior notes		$ 2	(4)
Settlement of convertible senior notes (in shares)		1,654,308
Purchase of treasury stock from the exercise of convertible senior notes hedges (in shares)		(1,654,757)
Share-based compensation			486,841
Net loss	(186,384)						(186,384)
Other comprehensive (loss) income	(22,846)					(22,846)
Balance (in shares) at Jul. 31, 2020		237,160,715
Balance at Jul. 31, 2020	2,838,478	$ 238	5,954,738		(303,201)	646	(2,813,943)
Balance (in shares) at Apr. 30, 2020		235,170,073
Balance at Apr. 30, 2020		$ 235	5,330,170		0	57,526	(2,785,927)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock under employee equity plans		$ 1	70,939
Issuance of common stock under employee equity plans (in shares)		1,991,097
Exercise of convertible senior notes hedges			303,202		(303,201)
Settlement of convertible senior notes		$ 2	(4)
Settlement of convertible senior notes (in shares)		1,654,302
Purchase of treasury stock from the exercise of convertible senior notes hedges (in shares)		(1,654,757)
Share-based compensation			250,431
Net loss	(28,016)						(28,016)
Other comprehensive (loss) income	(56,880)					(56,880)
Balance (in shares) at Jul. 31, 2020		237,160,715
Balance at Jul. 31, 2020	$ 2,838,478	$ 238	$ 5,954,738		$ (303,201)	$ 646	$ (2,813,943)

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Cash flows from operating activities:
Net loss	$ (28,016)	$ (120,712)	$ (186,384)	$ (236,987)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	73,178	67,754	144,692	128,919
Share-based compensation expenses	251,236	208,912	487,908	394,147
Amortization of deferred costs	27,349	22,002	53,409	42,882
Amortization of debt discount and issuance costs	14,528	14,301	29,368	25,888
Non-cash lease expense	19,879	16,252	38,248	32,074
Other	12,430	(4,851)	16,800	(11,697)
Changes in operating assets and liabilities, net of business combinations:
Trade and other receivables, net	(109,316)	(73,437)	181,586	83,942
Deferred costs	(41,841)	(28,207)	(59,901)	(46,692)
Prepaid expenses and other assets	(9,137)	(1,679)	10,840	(6,786)
Accounts payable	9,307	1,047	(13,075)	2,550
Accrued expenses and other liabilities	(39,837)	(56,524)	(41,341)	(35,121)
Unearned revenue	(22,550)	55,461	(241,257)	(63,637)
Net cash provided by (used in) operating activities	157,210	100,319	420,893	309,482
Cash flows from investing activities:
Purchases of marketable securities	(602,546)	(582,848)	(1,156,531)	(1,053,902)
Maturities of marketable securities	473,016	385,710	854,414	845,807
Sales of marketable securities	0	4,551	5,279	55,499
Owned real estate projects	(1,764)	(34,149)	(4,251)	(73,783)
Capital expenditures, excluding owned real estate projects	(66,555)	(75,576)	(126,495)	(141,111)
Business combinations, net of cash acquired	0	(12,885)	0	(12,885)
Purchases of non-marketable equity and other investments	(6,350)	(5,516)	(58,600)	(7,716)
Sales and maturities of non-marketable equity and other investments	1,561	0	6,199	0
Other	0	(32)	0	(9)
Net cash provided by (used in) investing activities	(202,638)	(320,745)	(479,985)	(388,100)
Cash flows from financing activities:
Proceeds from borrowings on term loan, net	250,000	0	747,795	0
Payments on convertible senior notes	(249,945)	(27)	(249,946)	(27)
Proceeds from issuance of common stock from employee equity plans	70,940	58,085	74,517	61,540
Other	(215)	(107)	(2,255)	(200)
Net cash provided by (used in) financing activities	70,780	57,951	570,111	61,313
Effect of exchange rate changes	771	75	506	(252)
Net increase (decrease) in cash, cash equivalents, and restricted cash	26,123	(162,400)	511,525	(17,557)
Cash, cash equivalents, and restricted cash at the beginning of period	1,220,123	787,046	734,721	642,203
Cash, cash equivalents, and restricted cash at the end of period	1,246,246	624,646	1,246,246	624,646
Supplemental cash flow data:
Cash paid for interest, net of amounts capitalized	4,939	469	6,377	472
Cash paid for income taxes	4,641	2,469	7,586	6,003
Non-cash investing and financing activities:
Purchases of property and equipment, accrued but not paid	49,987	46,910	49,987	46,910
Total cash, cash equivalents, and restricted cash	$ 1,246,246	$ 624,646	$ 1,246,246	$ 624,646

Overview and Basis of Presentat

Overview and Basis of Presentation	6 Months Ended
	Jul. 31, 2020
Accounting Policies [Abstract]
Overview and Basis of Presentation	Overview and Basis of Presentation Company and Background Workday delivers financial management, human resources, planning, spend management, and analytics applications designed for the world’s largest companies, educational institutions, and government agencies. We offer innovative and adaptable technology focused on the consumer internet experience and cloud delivery model. Our applications are designed for global enterprises to manage complex and dynamic operating environments. We provide our customers highly adaptable, accessible, and reliable applications to manage critical business functions that help enable them to optimize their financial and human resources. We were originally incorporated in March 2005 in Nevada, and in June 2012, we reincorporated in Delaware. As used in this report, the terms “Workday,” “registrant,” “we,” “us,” and “our” mean Workday, Inc. and its subsidiaries unless the context indicates otherwise. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The condensed consolidated financial statements include the results of Workday, Inc. and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated. 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. In the opinion of our management, the information contained herein reflects all adjustments necessary for a fair presentation of Workday’s financial position, results of operations, stockholders’ equity, and cash flows. All such adjustments are of a normal, recurring nature. The results of operations for the quarter ended July 31, 2020, shown in this report are not necessarily indicative of the results to be expected for the full year ending January 31, 2021. The unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended January 31, 2020, filed with the SEC on March 3, 2020. There have been no material changes in our significant accounting policies as described in our Annual Report on Form 10-K for the year ended January 31, 2020, other than the adoption of accounting pronouncements as described in Note 2, Accounting Standards. Certain prior period amounts reported in our condensed consolidated financial statements have been reclassified to conform to current period presentation. Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires us to make certain estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated financial statements, as well as the reported amounts of revenues and expenses during the reporting period. These estimates, judgments, and assumptions include, but are not limited to the fair value of assets acquired and liabilities assumed through business combinations, the determination of the period of benefit for deferred commissions, certain assumptions used in the valuation of equity awards, and assumptions used in the valuation of non-marketable equity investments. Actual results could differ from those estimates and such differences could be material to our condensed consolidated financial statements. Segment Information We operate in one operating segment, cloud applications. Operating segments are defined as components of an enterprise where separate financial information is evaluated regularly by the chief operating decision maker, who is our chief executive officer, in deciding how to allocate resources and assessing performance. Our chief operating decision maker allocates resources and assesses performance based upon discrete financial information at the consolidated level.

Accounting Standards

Accounting Standards	6 Months Ended
	Jul. 31, 2020
Accounting Policies [Abstract]
Accounting Standards	Accounting Standards Recently Adopted Accounting Pronouncements ASU No. 2016-13 In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost, including trade receivables. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. We adopted this standard effective February 1, 2020, using a modified retrospective approach, which resulted in a cumulative-effect adjustment of $0.2 million to Accumulated deficit. Under the new standard, we assess our allowance for credit losses on trade receivables by taking into consideration forecasts of future economic conditions, information about past events, such as our historical trend of write-offs, and customer-specific circumstances, such as bankruptcies and disputes. The allowance for credit losses on trade receivables is recorded in operating expenses on our condensed consolidated statements of operations. With respect to available-for-sale debt securities, when the fair value of the security is below its amortized cost, the amortized cost should be written down to its fair value if i) it is more likely than not that management is required to sell the impaired security before recovery of its amortized basis or ii) management has the intention to sell the security. If neither of the conditions are met, we must determine whether the impairment is due to credit losses. To determine the amount of credit losses, we compare the present value of the expected cash flows of the security, derived by taking into account the issuers’ credit ratings and remaining payment terms, with its amortized cost basis. The amount of impairment recognized is limited to the excess of the amortized cost over the fair value of the security. An allowance for credit losses for the excess of amortized cost over the expected cash flows is recorded in Other income (expense), net on our condensed consolidated statements of operations. Non-credit related impairment losses are recorded in Other comprehensive income (loss) (“OCI”). ASU No. 2018-15 In August 2018, the FASB issued ASU No. 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract , 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. The new standard requires capitalized costs to be amortized on a straight-line basis generally over the term of the arrangement, and the financial statement presentation for these capitalized costs would be the same as that of the fees related to the hosting arrangements. We adopted this standard effective February 1, 2020, using a prospective approach. The adoption of this new standard did not have a material impact on our condensed consolidated financial statements. Subsequent impact on our condensed consolidated financial statements will depend on the magnitude of implementation costs to be incurred. Implementation costs capitalized subsequent to adoption will be recognized in operating expenses on our condensed consolidated statements of operations over the noncancelable period of the hosting arrangement plus any renewal periods reasonably certain to be taken. ASU No. 2019-12 In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which simplifies accounting guidance for certain tax matters including franchise taxes, certain transactions that result in a step-up in tax basis of goodwill, and enacted changes in tax laws in interim periods. In addition, it eliminates a company’s need to evaluate certain exceptions relating to the incremental approach for intra-period tax allocation, accounting for basis differences when there are ownership changes in foreign investments, and interim period income tax accounting for year-to-date losses that exceed anticipated losses. We adopted this standard effective February 1, 2020. We adopted the amendments in this update on a retrospective basis for the provision related to franchise taxes and prospectively for all other applicable amendments. The adoption of this new standard did not have a material impact on our condensed consolidated financial statements. Recently Issued Accounting Pronouncements ASU No. 2020-04 In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting , which provides temporary optional expedients and exceptions to GAAP guidance on contract modifications to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (“LIBOR”) to alternative reference rates. We may elect to apply the amendments prospectively through December 31, 2022. The impact on our condensed consolidated financial statements from the adoption of this standard is expected to be immaterial. ASU No. 2020-06 In August 2020, the FASB issued ASU No. 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity , which simplifies the accounting for certain convertible instruments, amends the guidance on derivative scope exceptions for contracts in an entity's own equity, and modifies the guidance on diluted earnings per share calculations as a result of these changes. This new standard is effective for our interim and annual periods beginning February 1, 2022, and earlier adoption is permitted. We may elect to apply the amendments on a retrospective or modified retrospective basis. We are currently evaluating the impact of the adoption of this standard on our condensed consolidated financial statements.

Investments

Investments	6 Months Ended
	Jul. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Investments	Investments Debt Securities As of July 31, 2020, debt securities consisted of the following (in thousands): Amortized Cost Unrealized Gains Unrealized Losses Aggregate Fair Value U.S. treasury securities $ 388,208 $ 881 $ (1) $ 389,088 U.S. agency obligations 517,996 231 (116) 518,111 Corporate bonds 430,071 4,269 — 434,340 Commercial paper 267,241 — — 267,241 $ 1,603,516 $ 5,381 $ (117) $ 1,608,780 Included in Cash and cash equivalents $ 94,938 $ — $ — $ 94,938 Included in Marketable securities $ 1,508,578 $ 5,381 $ (117) $ 1,513,842 As of January 31, 2020, debt securities consisted of the following (in thousands): Amortized Cost Unrealized Gains Unrealized Losses Aggregate Fair Value U.S. treasury securities $ 312,183 $ 492 $ (5) $ 312,670 U.S. agency obligations 169,613 99 (44) 169,668 Corporate bonds 504,434 2,476 — 506,910 Commercial paper 364,701 — — 364,701 $ 1,350,931 $ 3,067 $ (49) $ 1,353,949 Included in Cash and cash equivalents $ 140,517 $ — $ — $ 140,517 Included in Marketable securities $ 1,210,414 $ 3,067 $ (49) $ 1,213,432 We classify our debt securities as available-for-sale at the time of purchase and reevaluate such classification as of each balance sheet date. We consider all debt securities as available for use in current operations, including those with maturity dates beyond one year, and therefore classify these securities as current assets on the condensed consolidated balance sheets. Debt securities included in Marketable securities on the condensed consolidated balance sheets consist of securities with original maturities at the time of purchase greater than three months, and the remainder of the securities is included in Cash and cash equivalents. The unrealized losses associated with our debt securities were immaterial as of July 31, 2020, and January 31, 2020, and we did not recognize any credit losses related to our debt securities during the three and six months ended July 31, 2020. During the three months ended July 31, 2020, we did not sell any debt securities. We sold $5 million of our debt securities during the three months ended July 31, 2019, and $5 million of our debt securities during each of the six months ended July 31, 2020, and 2019. The realized gains and losses from the sales were immaterial. Equity Investments Equity investments consisted of the following (in thousands): Condensed Consolidated Balance Sheets Location July 31, 2020 January 31, 2020 Money market funds Cash and cash equivalents $ 952,987 $ 386,909 Equity investments accounted for under the equity method Other assets 48,228 — Non-marketable equity investments measured using the measurement alternative Other assets 65,610 59,026 $ 1,066,825 $ 445,935 We determine at the inception of each arrangement whether an investment or other interest is considered a variable interest entity (“VIE”). If the investment or other interest is determined to be a VIE, we must evaluate whether we are considered the primary beneficiary. For investments in VIEs in which we are considered the primary beneficiary, the assets, liabilities, and results of operations of the VIE are consolidated in our condensed consolidated financial statements. The primary beneficiary of a VIE is the party that meets both of the following criteria: (1) has the power to direct the activities that most significantly impact the VIE’s economic performance; and (2) has the obligation to absorb losses or the right to receive benefits from the VIE. As of July 31, 2020, there were no VIEs for which we were the primary beneficiary. Equity Investments Accounted for Under the Equity Method Investments in VIEs for which we are not the primary beneficiary or do not own a controlling interest, but can exercise significant influence over the investee are accounted for under the equity method of accounting. These investments are measured at cost less any impairment, plus or minus our share of earnings and losses, and are included in Other assets on the condensed consolidated balance sheets. Our share of earnings and losses are recorded in Other income (expense), net, on the condensed consolidated statements of operations. During the first quarter of fiscal 2021, we made an equity investment of $50 million in a limited partnership, which represents an ownership interest of approximately 6%. We determined that the limited partnership is a variable interest entity because the at-risk equity holders, as a group, lack the characteristics of a controlling financial interest. We do not have majority voting rights nor the power to direct the activities of this entity, and therefore, we are not the primary beneficiary. The investment is accounted for under the equity method of accounting as it is considered to be more than minor, and we have the ability to exercise significant influence over the entity. The carrying value was $48 million as of July 31, 2020. There was no impairment loss recorded on this investment during the three and six months ended July 31, 2020. Non-Marketable Equity Investments Measured Using the Measurement Alternative Non-marketable equity investments measured using the measurement alternative include investments in privately held companies without readily determinable fair values in which we do not own a controlling interest or have significant influence. We adjust the carrying values of non-marketable equity investments based on observable price changes from orderly transactions for identical or similar investments of the same issuer. No material adjustments were made to the carrying value of the non-marketable equity investments as measured under the measurement alternative during the three and six months ended July 31, 2020, and 2019. Additionally, we assess our non-marketable equity investments quarterly for impairment. Our impairment analysis encompasses an assessment of the severity and duration of the impairment and a qualitative and quantitative analysis of other key factors including the investee’s financial metrics, market acceptance of the investee’s product or technology, other competitive products or technology in the market, general market conditions, and the rate at which the investee is using its cash. We also have considered the impacts of the coronavirus pandemic (“COVID-19 pandemic”) in our impairment analysis. These factors require significant judgment. We did not record any impairment losses on non-marketable equity investments for the three months ended July 31, 2020, and we recorded $3 million of impairment losses for the six months ended July 31, 2020. We did not record any such impairment losses during the three and six months ended July 31, 2019. Non-marketable equity investments that have been remeasured during the period due to an observable event or impairment are classified within Level 3 in the fair value hierarchy because we estimate the value based on valuation methods which may include a combination of the observable transaction price at the transaction date and other unobservable inputs including volatility, rights, and obligations of the investments we hold. Marketable Equity Investments We did not hold marketable equity investments as of July 31, 2020, and January 31, 2020. There were no sales of marketable equity investments during the three and six months ended July 31, 2020, or the three months ended July 31, 2019. We sold $51 million of marketable equity investments during the six months ended July 31, 2019, with a corresponding gain recognized of $7 million. Total realized and unrealized gains and losses associated with our equity investments consisted of the following (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Net realized gains (losses) recognized on equity investments sold $ — $ — $ 1,591 $ 6,844 Net unrealized gains (losses) recognized on equity investments held 1,909 2,169 (2,187) 2,169 Total net gains (losses) recognized in Other income (expense), net $ 1,909 $ 2,169 $ (596) $ 9,013

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jul. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements We measure our cash equivalents, marketable securities, and foreign currency derivative contracts at fair value at each reporting period using a fair value hierarchy that requires that we maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument’s classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs may be used to measure fair value: Level 1 — Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2 — Other inputs that are directly or indirectly observable in the marketplace. Level 3 — Unobservable inputs that are supported by little or no market activity. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table presents information about our assets and liabilities that are measured at fair value on a recurring basis and their assigned levels within the valuation hierarchy as of July 31, 2020 (in thousands): Level 1 Level 2 Level 3 Total U.S. treasury securities $ 389,088 $ — $ — $ 389,088 U.S. agency obligations — 518,111 — 518,111 Corporate bonds — 434,340 — 434,340 Commercial paper — 267,241 — 267,241 Money market funds 952,987 — — 952,987 Foreign currency derivative assets — 16,806 — 16,806 Total assets $ 1,342,075 $ 1,236,498 $ — $ 2,578,573 Foreign currency derivative liabilities $ — $ 20,986 $ — $ 20,986 Total liabilities $ — $ 20,986 $ — $ 20,986 The following table presents information about our assets and liabilities that are measured at fair value on a recurring basis and their assigned levels within the valuation hierarchy as of January 31, 2020 (in thousands): Level 1 Level 2 Level 3 Total U.S. treasury securities $ 312,670 $ — $ — $ 312,670 U.S. agency obligations — 169,668 — 169,668 Corporate bonds — 506,910 — 506,910 Commercial paper — 364,701 — 364,701 Money market funds 386,909 — — 386,909 Foreign currency derivative assets — 33,274 — 33,274 Total assets $ 699,579 $ 1,074,553 $ — $ 1,774,132 Foreign currency derivative liabilities $ — $ 3,996 $ — $ 3,996 Total liabilities $ — $ 3,996 $ — $ 3,996 Fair Value Measurements of Other Financial Instruments The following table presents the carrying amounts and estimated fair values of our financial instruments that are not recorded at fair value on the condensed consolidated balance sheets (in thousands): July 31, 2020 January 31, 2020 Net Carrying Amount Estimated Fair Value Net Carrying Amount Estimated Fair Value 1.50% Convertible senior notes $ — $ — $ 244,319 $ 571,057 0.25% Convertible senior notes 1,041,562 1,544,450 1,017,967 1,587,978 In June 2013, we completed an offering of $250 million of 1.50% convertible senior notes due July 15, 2020 (“2020 Notes”), which were subsequently converted during the three months ended July 31, 2020. In September 2017, we completed an offering of $1.15 billion of 0.25% convertible senior notes due October 1, 2022 (“2022 Notes” and together with the 2020 Notes, the “Notes”). The carrying amounts of the Notes represent the liability components of the principal balances as of July 31, 2020, and January 31, 2020. The estimated fair values of the Notes, which we have classified as Level 2 financial instruments, were determined based on the quoted bid prices of the Notes in an over-the-counter market on the last trading day of each reporting period. The if-converted value of the 2022 Notes exceeded the principal amount by $264 million. The if-converted value was determined based on the closing price of our common stock of $180.92 on July 31, 2020. For further information, see Note 10, Debt. In April 2020, we entered into a credit agreement (“Credit Agreement”) pursuant to which the lenders would extend to Workday a senior unsecured term loan facility in an aggregate principal amount of $750 million (“Term Loan,”) and an unsecured revolving credit facility in an aggregate principal amount of $750 million (“Revolving Credit Facility”). As of July 31, 2020, the carrying value of the Term Loan was $748 million, and there were no outstanding borrowings under the Revolving Credit Facility. The estimated fair value of the Term Loan, which we have classified as a Level 2 financial instrument, approximates the carrying value because it is a floating rate facility. For further information, see Note 10, Debt.

Deferred Costs

Deferred Costs	6 Months Ended
	Jul. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred Costs	Deferred CostsDeferred costs, which consist of deferred sales commissions, were $329 million and $323 million as of July 31, 2020, and January 31, 2020, respectively. Amortization expense for the deferred costs was $27 million and $22 million for the three months ended July 31, 2020, and 2019, respectively, and $53 million and $43 million for the six months ended July 31, 2020, and 2019, respectively. There was no impairment loss in relation to the costs capitalized for the periods presented.

Property and Equipment, Net

Property and Equipment, Net	6 Months Ended
	Jul. 31, 2020
Property, Plant and Equipment [Abstract]
Property and Equipment, Net	Property and Equipment, Net Property and equipment, net consisted of the following (in thousands): July 31, 2020 January 31, 2020 Land and land improvements $ 37,065 $ 38,737 Buildings 491,571 489,028 Computers, equipment, and software 831,593 723,482 Furniture and fixtures 53,814 51,917 Leasehold improvements 199,347 189,668 Property and equipment, gross 1,613,390 1,492,832 Less accumulated depreciation and amortization (655,956) (556,653) Property and equipment, net $ 957,434 $ 936,179 Depreciation expense totaled $57 million and $47 million for the three months ended July 31, 2020, and 2019, respectively, and $112 million and $88 million for the six months ended July 31, 2020, and 2019, respectively. No interest costs were capitalized to Property and equipment, net during the three and six months ended July 31, 2020. Interest costs capitalized to Property and equipment, net totaled $2 million and $6 million for the three and six months ended July 31, 2019, respectively.

Acquisition-Related Intangible

Acquisition-Related Intangible Assets, Net	6 Months Ended
	Jul. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Acquisition-Related Intangible Assets, Net	Acquisition-Related Intangible Assets, Net Acquisition-related intangible assets, net consisted of the following (in thousands): July 31, 2020 January 31, 2020 Developed technology $ 218,400 $ 218,400 Customer relationships 224,000 224,000 Trade name 12,400 12,400 Backlog 11,000 11,000 Acquisition-related intangible assets, gross 465,800 465,800 Less accumulated amortization (188,953) (157,399) Acquisition-related intangible assets, net $ 276,847 $ 308,401 Amortization expense related to acquisition-related intangible assets was $16 million and $20 million for the three months ended July 31, 2020, and 2019, respectively, and $32 million and $39 million for the six months ended July 31, 2020, and 2019, respectively. As of July 31, 2020, our future estimated amortization expense related to acquisition-related intangible assets is as follows (in thousands): Fiscal Period: Remainder of 2021 $ 28,221 2022 52,833 2023 50,109 2024 38,933 2025 27,500 Thereafter 79,251 Total $ 276,847

Other Assets

Other Assets	6 Months Ended
	Jul. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	Other Assets Other assets consisted of the following (in thousands): July 31, 2020 January 31, 2020 Non-marketable equity and other investments (1) $ 78,239 $ 75,004 Equity investments accounted for under the equity method 48,228 — Prepayments for goods and services 22,711 27,928 Technology patents and other intangible assets, net 16,282 17,898 Net deferred tax assets 7,450 6,912 Deposits 5,847 6,335 Derivative assets 4,440 9,529 Other 1,880 999 Total $ 185,077 $ 144,605 (1) Included in non-marketable equity and other investments are investments in loan receivables of privately held companies, which are carried at amortized cost. The carrying values of these loan receivables were $13 million and $16 million as of July 31, 2020, and January 31, 2020, respectively. As of July 31, 2020, the allowance for credit losses on this balance was immaterial. Technology patents and other intangible assets with estimable useful lives are amortized on a straight-line basis. As of July 31, 2020, the future estimated amortization expense is as follows (in thousands): Fiscal Period: Remainder of 2021 $ 1,437 2022 2,620 2023 2,348 2024 2,040 2025 1,569 Thereafter 6,268 Total $ 16,282

Derivative Instruments

Derivative Instruments	6 Months Ended
	Jul. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments We conduct business on a global basis in multiple foreign currencies, subjecting Workday to foreign currency risk. To mitigate this risk, we utilize hedging contracts as described below. We do not enter into any derivatives for trading or speculative purposes. Our foreign currency contracts are classified within Level 2 of the fair value hierarchy because the valuation inputs are based on quoted prices and market observable data of similar instruments in active markets, such as currency spot and forward rates. Foreign Currency Forward Contracts Designated as Cash Flow Hedges We are exposed to foreign currency fluctuations resulting from customer contracts denominated in foreign currencies. We have a hedging program in which we enter into foreign currency forward contracts related to certain customer contracts. We designate these forward contracts as cash flow hedging instruments since the accounting criteria for such designation have been met. Foreign currency forward contracts designated as cash flow hedges are recorded on the condensed consolidated balance sheets at fair value. Cash flows from such forward contracts are classified as operating activities. Gains or losses resulting from changes in the fair value of these hedges are recorded in Accumulated other comprehensive income (loss) (“AOCI”) on the condensed consolidated balance sheets and will be subsequently reclassified to the related revenue line item on the condensed consolidated statements of operations in the same period that the underlying revenues are earned. As of July 31, 2020, we estimate that $12 million of net gains recorded in AOCI related to our foreign currency forward contracts designated as cash flow hedges will be reclassified into income within the next 12 months. As of July 31, 2020, and January 31, 2020, we had outstanding foreign currency forward contracts designated as cash flow hedges with total notional values of $1.1 billion and $908 million, respectively. The notional value represents the amount that will be bought or sold upon maturity of the forward contract. All such contracts have maturities not greater than 49 months. Foreign Currency Forward Contracts Not Designated as Hedges We also enter into foreign currency forward contracts to hedge a portion of our net outstanding monetary assets and liabilities. These forward contracts are intended to offset the foreign currency gains or losses associated with the underlying monetary assets and liabilities and are recorded on the condensed consolidated balance sheets at fair value. These forward contracts are not designated as hedging instruments under applicable accounting guidance, and therefore all changes in the fair value of these forward contracts are recorded in Other income (expense), net on the condensed consolidated statements of operations. Cash flows from such forward contracts are classified as operating activities. As of July 31, 2020, and January 31, 2020, we had outstanding forward contracts not designated as hedges with total notional values of $119 million and $246 million, respectively. The fair values of outstanding derivative instruments were as follows (in thousands): Condensed Consolidated Balance Sheets Location July 31, 2020 January 31, 2020 Derivative assets: Foreign currency forward contracts designated as cash flow hedges Prepaid expenses and other current assets $ 11,996 $ 20,944 Foreign currency forward contracts designated as cash flow hedges Other assets 4,437 9,529 Foreign currency forward contracts not designated as hedges Prepaid expenses and other current assets 370 2,801 Foreign currency forward contracts not designated as hedges Other assets 3 — Total derivative assets $ 16,806 $ 33,274 Derivative liabilities: Foreign currency forward contracts designated as cash flow hedges Accrued expenses and other current liabilities $ 8,964 $ 1,211 Foreign currency forward contracts designated as cash flow hedges Other liabilities 9,498 1,809 Foreign currency forward contracts not designated as hedges Accrued expenses and other current liabilities 2,524 976 Foreign currency forward contracts not designated as hedges Other liabilities — — Total derivative liabilities $ 20,986 $ 3,996 The effect of foreign currency forward contracts designated as cash flow hedges on the condensed consolidated statements of operations was as follows (in thousands): Condensed Consolidated Statements of Operations Location Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Total revenues Revenues $ 1,061,967 $ 887,752 $ 2,080,352 $ 1,712,807 Amount of gains (losses) related to foreign currency forward contracts designated as cash flow hedges Revenues 5,278 896 9,764 912 Pre-tax gains (losses) associated with foreign currency forward contracts designated as cash flow hedges were as follows (in thousands): Condensed Consolidated Statements of Operations and Statements of Comprehensive Loss Locations Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Gains (losses) recognized in OCI Net change in market value of effective foreign currency forward exchange contracts $ (52,558) $ 21,928 $ (15,765) $ 37,790 Gains (losses) reclassified from AOCI into income (effective portion) Revenues 5,278 896 9,764 912 Gains (losses) associated with foreign currency forward contracts not designated as hedges were as follows (in thousands): Condensed Consolidated Statements of Operations Location Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Foreign currency forward contracts not designated as hedges Other income (expense), net $ (4,040) $ 2,229 $ 1,373 $ 4,627 We are subject to master netting agreements with certain counterparties of the foreign exchange contracts, under which we are permitted to net settle transactions of the same currency with a single net amount payable by one party to the other. It is our policy to present the derivatives gross on the condensed consolidated balance sheets. Our foreign currency forward contracts are not subject to any credit contingent features or collateral requirements. We manage our exposure to counterparty risk by entering into contracts with a diversified group of major financial institutions and by actively monitoring outstanding positions. As of July 31, 2020, information related to these offsetting arrangements was as follows (in thousands): Gross Amounts of Recognized Assets Gross Amounts Offset on the Condensed Consolidated Balance Sheets Net Amounts of Assets Presented on the Condensed Consolidated Balance Sheets Gross Amounts Not Offset on the Condensed Consolidated Balance Sheets Net Assets Exposed Financial Instruments Cash Collateral Received Derivative assets: Counterparty A $ 289 $ — $ 289 $ (289) $ — $ — Counterparty B 15,113 — 15,113 (15,113) — — Counterparty C 1,404 — 1,404 (1,404) — — Total $ 16,806 $ — $ 16,806 $ (16,806) $ — $ — Gross Amounts of Recognized Liabilities Gross Amounts Offset on the Condensed Consolidated Balance Sheets Net Amounts of Liabilities Presented on the Condensed Consolidated Balance Sheets Gross Amounts Not Offset on the Condensed Consolidated Balance Sheets Net Liabilities Exposed Financial Instruments Cash Collateral Pledged Derivative liabilities: Counterparty A $ 2,086 $ — $ 2,086 $ (289) $ — $ 1,797 Counterparty B 8,504 — 8,504 (15,113) — (6,609) Counterparty C 10,396 — 10,396 (1,404) — 8,992 Total $ 20,986 $ — $ 20,986 $ (16,806) $ — $ 4,180

Debt

Debt	6 Months Ended
	Jul. 31, 2020
Debt Disclosure [Abstract]
Debt	Debt Outstanding debt consisted of the following (in thousands): July 31, 2020 January 31, 2020 2020 Notes, net of unamortized debt discounts of $0 and $5,319, respectively, and unamortized debt issuance costs of $0 and $307, respectively $ — $ 244,319 2022 Notes, net of unamortized debt discounts of $102,238 and $124,403, respectively, and unamortized debt issuance costs of $6,200 and $7,630, respectively 1,041,562 1,017,967 Term Loan, net of unamortized debt discounts of $1,885 and $0, respectively, and unamortized debt issuance costs of $173 and $0, respectively 747,942 — Total debt $ 1,789,504 $ 1,262,286 Less: current maturities $ (37,500) $ (244,319) Total debt, noncurrent $ 1,752,004 $ 1,017,967 As of July 31, 2020, expected future principal payments on our outstanding debt are as follows (in thousands): Fiscal Period: Remainder of 2021 $ 18,750 2022 37,500 2023 1,225,000 2024 75,000 2025 75,000 Thereafter 468,750 Total $ 1,900,000 Convertible Senior Notes In June 2013, we issued 1.50% convertible senior notes due July 15, 2020, with a principal amount of $250 million. The 2020 Notes were unsecured, unsubordinated obligations, and interest was payable in cash in arrears at a fixed rate of 1.50% on January 15 and July 15 of each year. During the three months ended July 31, 2020, the 2020 Notes were converted by note holders, and we repaid the $250 million principal balance in cash. We also distributed approximately 1.7 million shares of our Class A common stock to note holders during the three months ended July 31, 2020, which represents the conversion value in excess of the principal amount. In September 2017, we issued 0.25% convertible senior notes due October 1, 2022, with a principal amount of $1.15 billion. The 2022 Notes are unsecured, unsubordinated obligations, and interest is payable in cash in arrears at a fixed rate of 0.25% on April 1 and October 1 of each year. The 2022 Notes mature on October 1, 2022, unless repurchased or converted in accordance with their terms prior to such date. We cannot redeem the 2022 Notes prior to maturity. The terms of the 2022 Notes are governed by an Indenture by and between us and Wells Fargo Bank, National Association, as Trustee (“Indenture”). Upon conversion, holders of the 2022 Notes will receive cash, shares of Class A common stock, or a combination of cash and shares of Class A common stock, at our election. The initial conversion rate for the 2022 Notes is 6.7982 shares of Class A common stock per $1,000 principal amount, which is equal to an initial conversion price of approximately $147.10 per share of Class A common stock, subject to adjustment. Prior to the close of business on May 31, 2022, conversion of the 2022 Notes is subject to the satisfaction of certain conditions, as described below. Holders of the 2022 Notes who convert their 2022 Notes in connection with certain corporate events that constitute a make-whole fundamental change (as defined in the Indenture) are, under certain circumstances, entitled to an increase in the conversion rate. Additionally, in the event of a corporate event that constitutes a fundamental change (as defined in the Indenture), holders of the 2022 Notes may require us to repurchase all or a portion of their 2022 Notes at a price equal to 100% of the principal amount of the 2022 Notes, plus any accrued and unpaid interest. Holders of the 2022 Notes may convert all or a portion of their 2022 Notes prior to the close of business on May 31, 2022, in multiples of $1,000 principal amount, only under the following circumstances: • if the last reported sale price of our Class A common stock for at least 20 trading days during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price of the 2022 Notes on each applicable trading day; • during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of the 2022 Notes for each day of that five day consecutive trading day period was less than 98% of the product of the last reported sale price of Class A common stock and the conversion rate of the 2022 Notes on such trading day; or • upon the occurrence of specified corporate events, as noted in the Indenture. On or after June 1, 2022, holders of the 2022 Notes may convert their 2022 Notes at any time until the close of business on the second scheduled trading day immediately preceding the maturity date of the 2022 Notes. As of July 31, 2020, and January 31, 2020, the 2022 Notes are classified as noncurrent on the condensed consolidated balance sheets since the criteria for conversion was not met. In accounting for the issuance of the Notes, we separated each of the Notes into liability and equity components. The carrying amounts of the liability components were calculated by measuring the fair value of similar liabilities that do not have associated convertible features. The carrying amounts of the equity components representing the conversion option were determined by deducting the fair value of the liability components from the par value of the respective Notes. These differences represent debt discounts that are amortized to interest expense over the respective terms of the Notes using the effective interest rate method. The gross carrying amounts of the equity components recorded were $68 million and $223 million for the 2020 Notes and 2022 Notes, respectively, and were included in Additional paid-in capital on the condensed consolidated balance sheets upon issuance. The equity components are not remeasured as long as they continue to meet the conditions for equity classification. The effective interest rate of the liability component of the 2020 Notes was 6.25%, and the effective interest rate of the liability component of the 2022 Notes is 4.60%. The interest rates were based on the interest rates of similar liabilities at the time of issuance that did not have associated convertible features. In accounting for the issuance costs related to the Notes, we allocated the total amount of issuance costs incurred to liability and equity components based on their relative values. Issuance costs attributable to the liability components are being amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the respective terms of the Notes. The issuance costs attributable to the equity components were netted against the respective equity components in Additional paid-in capital. Upon issuance of the 2020 Notes, we recorded liability issuance costs of $5 million and equity issuance costs of $2 million, and upon issuance of the 2022 Notes, we recorded liability issuance costs of $14 million and equity issuance costs of $4 million. Notes Hedges In connection with the issuance of the Notes, we entered into convertible note hedge transactions with respect to our Class A common stock (“Purchased Options”). The Purchased Options are intended to offset potential economic dilution to our Class A common stock upon any conversion of the Notes. The Purchased Options are separate transactions and are not part of the terms of the Notes. The amounts paid for the Purchased Options are included in Additional paid-in capital on the condensed consolidated balance sheets. The Purchased Options relating to the 2020 Notes gave us the option to purchase, subject to anti-dilution adjustments substantially identical to those in the 2020 Notes, approximately 3.1 million shares of our Class A common stock for $81.74 per share, exercisable upon conversion of the 2020 Notes. During the three months ended July 31, 2020, we received approximately 1.7 million shares of our Class A common stock from the exercise of the Purchased Options relating to the 2020 Notes. These shares are held as treasury stock as of July 31, 2020. The Purchased Options relating to the 2022 Notes give us the option to purchase, subject to anti-dilution adjustments substantially identical to those in the 2022 Notes, approximately 7.8 million shares of our Class A common stock for $147.10 per share, exercisable upon conversion of the 2022 Notes. The Purchased Options relating to the 2022 Notes will expire in 2022, if not exercised earlier. Warrants In connection with the issuance of the Notes, we also entered into warrant transactions to sell warrants (“Warrants”) to acquire, subject to anti-dilution adjustments, up to approximately 3.1 million shares over 60 scheduled trading days beginning in October 2020 and 7.8 million shares over 60 scheduled trading days beginning in January 2023 of our Class A common stock at an exercise price of $107.96 and $213.96 per share, respectively. If the Warrants are not exercised on their exercise dates, they will expire. If the market value per share of our Class A common stock exceeds the applicable exercise price of the Warrants, the Warrants will have a dilutive effect on our earnings per share assuming that we are profitable. The Warrants are separate transactions and are not part of the terms of the Notes or the Purchased Options. The proceeds from the sale of the Warrants are recorded in Additional paid-in capital on the condensed consolidated balance sheets. Credit Agreement In April 2020, we entered into a credit agreement pursuant to which the lenders would extend to Workday a senior unsecured term loan facility in an aggregate principal amount of $750 million and an unsecured revolving credit facility in an aggregate principal amount of $750 million. The Term Loan and Revolving Credit Facility bear interest, at our option, at either (i) a floating rate per annum equal to the base rate plus a margin that ranges from 0% to 0.625%, or (ii) a per annum rate equal to the rate at which dollar deposits are offered in the London interbank market plus a margin that ranges from 1.000% to 1.625%. The base rate is defined as the greatest of (i) Bank of America’s prime rate, (ii) the federal funds rate plus 0.50% or (iii) a per annum rate equal to the rate at which dollar deposits are offered in the London interbank market for a period of one month (but not less than zero) plus 1.00%. Actual margins under either election will be based on our consolidated leverage ratio, which is measured by dividing (a) our consolidated funded indebtedness as of the fiscal quarter end by (b) our consolidated EBITDA as defined in the Credit Agreement for the most recently completed four consecutive fiscal quarters. The Credit Agreement contains customary representations, warranties, and affirmative and negative covenants, including a financial covenant, events of default, and indemnification provisions in favor of the lenders. The financial covenant, based on a quarterly financial test, requires Workday not to exceed a maximum leverage ratio of 3.50:1.00, subject to a step-up to 4.50:1.00 at the election of Workday for a certain period following an Acquisition (as defined in the Credit Agreement). As of July 31, 2020, we were in compliance with all covenants. Term Loan The Term Loan was funded in two individual tranches. On April 2, 2020, $500 million of the Term Loan was funded, and the remaining $250 million was funded on July 13, 2020. The Term Loan matures on April 2, 2025, and provides for quarterly repayment in installments of the principal amount, beginning October 2020, at a rate of 1.25% of the principal amount per quarter through January 2022, and 2.50% of the principal amount per quarter thereafter. The Term Loan may be prepaid or permanently reduced by Workday without penalty or premium. We incurred fees of approximately $2 million in connection with entering into the agreement for the Term Loan. The fees paid to lenders on the issuance of the debt are accounted for as a debt discount, while the remaining fees paid to third parties are accounted for as debt issuance costs. The debt discount and issuance costs are amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the contractual term of the arrangement. As of July 31, 2020, the Term Loan had a carrying value of $748 million, of which $38 million is classified as current and $710 million is classified as noncurrent on the condensed consolidated balance sheet. As of July 31, 2020, the interest rate on the Term Loan was 2.12% and the effective interest rate was 2.46%. Revolving Credit Facility The Revolving Credit Facility may be borrowed, repaid, and reborrowed until April 2, 2025, at which time all amounts borrowed must be repaid. We may request, no more than two times during the term of the Credit Agreement, that each revolving lender extend the maturity date for the revolving loans for one year. Additionally, we may request an increase in aggregate revolving commitments by up to $250 million at any time prior to April 2, 2025. The Revolving Credit Facility may be prepaid or permanently reduced by Workday without penalty or premium. We are required to pay each revolving lender a commitment fee on a quarterly basis based on amounts committed but unused under the Revolving Credit Facility that ranges from 0.090% to 0.225% per annum, depending on our consolidated leverage ratio. The commitment fee is expensed as incurred and included within Other income (expense), net on the condensed consolidated statement of operations. We incurred fees of approximately $2 million in connection with entering into the agreement for the Revolving Credit Facility. The fees are recorded in Other assets on the condensed consolidated balance sheet and are amortized on a straight-line basis over the contractual term of the arrangement. As of July 31, 2020, there were no outstanding borrowings under the Revolving Credit Facility. Interest Expense on Debt The following table sets forth total interest expense recognized related to our debt (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Contractual interest expense $ 4,799 $ 1,657 $ 7,430 $ 3,313 Interest cost related to amortization of debt discount 13,665 13,418 27,620 26,672 Interest cost related to amortization of debt issuance costs 863 883 1,750 1,766 Total interest expense $ 19,327 $ 15,958 $ 36,800 $ 31,751

Leases

Leases	6 Months Ended
	Jul. 31, 2020
Leases [Abstract]
Leases	Leases We have entered into operating lease agreements for our office space, data centers, and other property and equipment. As of July 31, 2020, and January 31, 2020, operating lease right-of-use assets were $325 million and $291 million, respectively, and operating lease liabilities were $347 million and $308 million, respectively. We have also entered into finance lease agreements for other property and equipment. As of July 31, 2020, and January 31, 2020, finance leases were not material. The components of operating lease expense were as follows (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Operating lease cost $ 22,336 $ 18,961 $ 43,235 $ 37,475 Short-term lease cost 4,080 4,205 8,432 7,845 Variable lease cost 4,886 5,138 9,336 8,564 Total operating lease cost $ 31,302 $ 28,304 $ 61,003 $ 53,884 Supplemental cash flow information related to our operating leases was as follows (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Cash paid for operating lease liabilities $ 21,153 $ 19,324 $ 42,165 $ 35,508 Operating lease right-of-use assets obtained in exchange for new operating lease liabilities (1) 32,216 31,071 70,503 327,021 (1) Prior year activity includes $279 million for operating leases existing on February 1, 2019, and $48 million for operating leases that commenced in the first half of fiscal 2020. Other information related to our operating leases was as follows: July 31, 2020 January 31, 2020 Weighted average remaining lease term (in years) 6 6 Weighted average discount rate 3.08% 3.36% As of July 31, 2020, maturities of operating lease liabilities are as follows (in thousands): Fiscal Period: Remainder of 2021 $ 41,143 2022 86,814 2023 78,328 2024 69,058 2025 54,457 Thereafter 57,261 Total lease payments 387,061 Less imputed interest (39,656) Total $ 347,405 As of July 31, 2020, we have additional operating leases, primarily for office space and data centers, that have not yet commenced with total undiscounted lease payments of $22 million. These operating leases will commence in the remaining months of fiscal 2021, with lease terms ranging from one Related-Party Lease Transactions We lease certain office space from an affiliate of our Chairman, Mr. Duffield, adjacent to our corporate headquarters in Pleasanton, California, under various lease agreements. The operating lease right-of-use assets and operating lease liabilities related to these agreements were $55 million and $67 million, respectively, as of July 31, 2020, and $57 million and $70 million, respectively, as of January 31, 2020. The weighted average remaining lease term of these agreements is four years. The total rent expense under these agreements was $4 million and $3 million for the three months ended July 31, 2020, and 2019, respectively, and $7 million and $6 million for the six months ended July 31, 2020, and 2019, respectively.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jul. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Third-Party Hosted Infrastructure Platform-Related Commitments We have entered into noncancelable agreements with third-party hosted infrastructure platform vendors with various expiration dates. As of July 31, 2020, future noncancelable minimum payments under these agreements were approximately $466 million. Legal Matters We are a party to various legal proceedings and claims that arise in the ordinary course of business. We make a provision for a liability relating to legal matters when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. These provisions are reviewed at least quarterly and adjusted to reflect the impacts of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular matter. In our opinion, as of July 31, 2020, there was not at least a reasonable possibility that we had incurred a material loss, or a material loss in excess of a recorded accrual, with respect to such loss contingencies.

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jul. 31, 2020
Share-based Payment Arrangement [Abstract]
Stockholders' Equity	Stockholders’ Equity Common Stock As of July 31, 2020, there were 177 million shares of Class A common stock, net of treasury stock, and 60 million shares of Class B common stock outstanding. The rights of the holders of Class A common stock and Class B common stock are identical, except with respect to voting and conversion. Each share of Class A common stock is entitled to one vote per share and each share of Class B common stock is entitled to 10 votes per share. Each share of Class B common stock can be converted into a share of Class A common stock at any time at the option of the holder. Employee Equity Plans Our 2012 Equity Incentive Plan (“EIP”) serves as the successor to our 2005 Stock Plan (together with the EIP, the “Stock Plans”). As of July 31, 2020, we had 63 million shares of Class A common stock available for future grants. We also have a 2012 Employee Stock Purchase Plan (“ESPP”). Under the ESPP, eligible employees are granted options to purchase shares at the lower of 85% of the fair market value of the stock at the time of grant or 85% of the fair market value at the time of exercise. Options to purchase shares are granted twice yearly on or about June 1, and December 1, and exercisable on or about the succeeding November 30, and May 31, respectively, of each year. As of July 31, 2020, 5 million shares of Class A common stock were available for issuance under the ESPP. Restricted Stock Units The Stock Plans provide for the issuance of restricted stock units (“RSUs”) to employees and non-employees. RSUs generally vest over four years. A summary of information related to RSU activity during the six months ended July 31, 2020, is as follows: Number of Shares Weighted-Average Grant Date Fair Value Balance as of January 31, 2020 11,914,064 $ 147.96 RSUs granted 7,609,940 148.12 RSUs vested (3,264,103) 139.82 RSUs forfeited (565,835) 145.37 Balance as of July 31, 2020 15,694,066 149.82 As of July 31, 2020, there was a total of $2.2 billion in unrecognized compensation cost related to unvested RSUs, which is expected to be recognized over a weighted-average period of approximately three years. Performance-Based Restricted Stock Units During fiscal 2020, 0.6 million shares of performance-based restricted stock units (“PRSUs”) were granted to all employees other than executive management that included both service conditions and performance conditions related to company-wide goals. These performance conditions were met and the PRSUs vested on March 15, 2020. During the six months ended July 31, 2020, we recognized $19 million in compensation cost related to these PRSUs. Additionally, during the second quarter of fiscal 2021, 0.6 million shares of PRSUs were granted to all employees other than executive management that included both service conditions and performance conditions related to company-wide goals. We expect to grant additional shares related to this program for employees hired in fiscal 2021. These PRSU awards will vest if the performance conditions are achieved for the fiscal year ended January 31, 2021, and if the individual employee continues to provide service through the vesting date of March 15, 2021. During each of the three and six months ended July 31, 2020, we recognized $19 million in compensation cost related to these PRSUs. A total of $90 million in unrecognized compensation cost is expected to be recognized over a weighted-average period of approximately seven months. Stock Options The Stock Plans provide for the issuance of incentive and nonstatutory stock options to employees and non-employees. Stock options issued under the Stock Plans generally are exercisable for periods not to exceed ten years and generally vest over five years. A summary of information related to stock option activity during the six months ended July 31, 2020, is as follows (in millions, except share and per share data): Outstanding Stock Options Weighted-Average Exercise Price Aggregate Intrinsic Value Balance as of January 31, 2020 3,435,577 $ 9.78 $ 601 Stock options exercised (1,155,404) 6.19 Stock options canceled (18,719) 42.92 Balance as of July 31, 2020 2,261,454 11.34 383 Vested and expected to vest as of July 31, 2020 2,251,777 11.23 382 Exercisable as of July 31, 2020 2,030,205 8.91 349 As of July 31, 2020, there was a total of $19 million in unrecognized compensation cost related to unvested stock options, which is expected to be recognized over a weighted-average period of approximately one year.

Unearned Revenue and Performanc

Unearned Revenue and Performance Obligations	6 Months Ended
	Jul. 31, 2020
Revenue from Contract with Customer [Abstract]
Unearned Revenue and Performance Obligations	Unearned Revenue and Performance Obligations Subscription services revenue of $824 million and $677 million was recognized during the three months ended July 31, 2020, and 2019, respectively, that was included in the unearned revenue balances as of April 30, 2020, and 2019, respectively. Subscription services revenue of $1.46 billion and $1.18 billion was recognized during the six months ended July 31, 2020, and 2019, respectively, that was included in the unearned revenue balances as of January 31, 2020, and 2019, respectively. Professional services revenue recognized in the same periods from unearned revenue balances at the beginning of the respective periods was not material. Transaction Price Allocated to the Remaining Performance Obligations As of July 31, 2020, approximately $8.60 billion of revenue is expected to be recognized from remaining performance obligations for subscription contracts. We expect to recognize revenue on approximately $5.78 billion of these remaining performance obligations over the next 24 months, with the balance recognized thereafter. Revenue from remaining performance obligations for professional services contracts as of July 31, 2020, was not material.

Other Income (Expense), Net

Other Income (Expense), Net	6 Months Ended
	Jul. 31, 2020
Other Income and Expenses [Abstract]
Other Income (Expense), Net	Other Income (Expense), Net Other income (expense), net consisted of the following (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Interest income $ 4,978 $ 11,239 $ 12,845 $ 21,589 Interest expense (1) (19,302) (14,473) (36,841) (26,074) Other (2) 2,871 3,128 1,570 11,520 Other income (expense), net $ (11,453) $ (106) $ (22,426) $ 7,035 (1) Interest expense includes the contractual interest expense of the Notes and Term Loan, and the related non-cash interest expense attributable to amortization of the debt discounts and debt issuance costs, net of capitalized interest costs. For further information, see Note 10, Debt. (2) Other includes the net gains (losses) from our equity investments, the commitment fee on the Revolving Credit Facility, and amortization of issuance costs on the Revolving Credit Facility. For further information, see Note 3, Investments, and Note 10, Debt.

Income Taxes

Income Taxes	6 Months Ended
	Jul. 31, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We compute the year-to-date income tax provision by applying the estimated annual effective tax rate to the year-to-date pre-tax income or loss and adjust for discrete tax items in the period. We reported an income tax expense of $3 million and an income tax benefit of $2 million for each of the six-month periods ended July 31, 2020, and 2019, respectively. The income tax expense for the six months ended July 31, 2020, was primarily attributable to state taxes and income tax expenses in profitable foreign jurisdictions. There were no intra-period tax allocations for the gains from comprehensive income due to the adoption of ASU No. 2019-12 on February 1, 2020. The income tax benefit for the six months ended July 31, 2019, was primarily attributable to the application of intra-period tax allocation rules for the gains from comprehensive income and the excess tax benefits in certain foreign jurisdictions from share-based compensation, partially offset by state taxes and income tax expenses in profitable foreign jurisdictions. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was signed into law in response to the COVID-19 pandemic. The CARES Act includes temporary changes to income and non-income based tax laws. We evaluated the applicable provisions of the CARES Act and determined that there is no material impact to our financial results. On June 22, 2020, the U.S. Supreme Court declined to hear the appeal of a ruling by the U.S. Court of Appeals for the Ninth Circuit regarding the treatment of stock-based compensation expenses in a cost-sharing agreement (Altera Corporation & Subsidiaries v. Commissioner). The U.S. Supreme Court decision resulted in an immaterial reduction in our deferred tax assets relative to the total gross deferred tax assets, which was fully offset by our valuation allowance. As a result, there was no net impact on our condensed consolidated financial statements. We are subject to income tax audits in the U.S. and foreign jurisdictions. We record liabilities related to uncertain tax positions and believe that we have provided adequate reserves for income tax uncertainties in all open tax years. Due to our history of tax losses, all years remain open to tax audit. We periodically evaluate the realizability of our net deferred tax assets based on all available evidence, both positive and negative. The realization of net deferred tax assets is dependent on our ability to generate sufficient future taxable income during periods prior to the expiration of tax attributes to fully utilize these assets. As of July 31, 2020, we continue to maintain a full valuation allowance on our deferred tax assets except in certain jurisdictions.

Net Loss Per Share

Net Loss Per Share	6 Months Ended
	Jul. 31, 2020
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share Basic net loss per share attributable to common stockholders is computed by dividing the net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period, net of treasury stock. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including our outstanding stock options, common stock related to unvested RSUs and PRSUs, common stock related to convertible senior notes to the extent dilutive, outstanding warrants, and common stock issuable pursuant to the ESPP. Basic and diluted net loss per share was the same for each period presented, as the inclusion of all potential common shares outstanding would have been anti-dilutive. The net loss per share attributable to common stockholders is allocated based on the contractual participation rights of the Class A common shares and Class B common shares as if the loss for the period had been distributed. As the liquidation and dividend rights are identical, the net loss attributable to common stockholders is allocated on a proportionate basis. The following table presents the calculation of basic and diluted net loss attributable to common stockholders per share (in thousands, except per share data): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Class A Class B Class A Class B Class A Class B Class A Class B Net loss per share, basic and diluted: Numerator: Allocation of distributed net loss $ (20,732) $ (7,284) $ (86,481) $ (34,231) $ (137,980) $ (48,404) $ (169,067) $ (67,920) Denominator: Weighted-average common shares outstanding 175,441 60,561 162,193 64,199 173,590 60,893 160,414 64,443 Basic and diluted net loss per share $ (0.12) $ (0.12) $ (0.53) $ (0.53) $ (0.79) $ (0.79) $ (1.05) $ (1.05) Potentially dilutive securities that are not included in the calculation of diluted net loss per share because doing so would be antidilutive are as follows (in thousands): As of July 31, 2020 2019 Outstanding common stock options 2,261 4,512 Unvested RSUs and PRSUs 16,326 14,288 Shares related to the convertible senior notes 7,818 10,876 Shares subject to warrants related to the issuance of convertible senior notes 10,876 10,876 Shares issuable pursuant to the ESPP 463 394 Total 37,744 40,946

Geographic Information

Geographic Information	6 Months Ended
	Jul. 31, 2020
Segment Reporting [Abstract]
Geographic Information	Geographic Information Disaggregation of Revenue We sell our subscription contracts and related services in two primary geographical markets: to customers located in the United States and to customers located outside of the United States. Revenue by geography is generally based on the address of the customer as specified in our master subscription agreement. The following table sets forth revenue by geographic area (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 United States $ 805,056 $ 676,568 $ 1,567,396 $ 1,305,097 Other countries 256,911 211,184 512,956 407,710 Total $ 1,061,967 $ 887,752 $ 2,080,352 $ 1,712,807 No single country other than the United States had revenues greater than 10% of total revenues for the three and six months ended July 31, 2020, and 2019. No customer individually accounted for more than 10% of our trade and other receivables, net as of July 31, 2020, or January 31, 2020. Long-Lived Assets Our long-lived assets, which primarily consist of property and equipment and operating lease right-of-use assets, are attributed to a country based on the physical location of the assets. Aggregate Property and equipment, net, and Operating lease right-of-use assets by geographic area was as follows (in thousands): July 31, 2020 January 31, 2020 United States $ 1,084,136 $ 1,064,292 Ireland 126,021 122,619 Other countries 71,932 40,170 Total $ 1,282,089 $ 1,227,081

Overview and Basis of Present_2

Overview and Basis of Presentation (Policies)	6 Months Ended
	Jul. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. The condensed consolidated financial statements include the results of Workday, Inc. and its wholly-owned subsidiaries. All intercompany balances and transactions have been eliminated. 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. In the opinion of our management, the information contained herein reflects all adjustments necessary for a fair presentation of Workday’s financial position, results of operations, stockholders’ equity, and cash flows. All such adjustments are of a normal, recurring nature. The results of operations for the quarter ended July 31, 2020, shown in this report are not necessarily indicative of the results to be expected for the full year ending January 31, 2021. The unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended January 31, 2020, filed with the SEC on March 3, 2020. There have been no material changes in our significant accounting policies as described in our Annual Report on Form 10-K for the year ended January 31, 2020, other than the adoption of accounting pronouncements as described in Note 2, Accounting Standards. Certain prior period amounts reported in our condensed consolidated financial statements have been reclassified to conform to current period presentation.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with GAAP requires us to make certain estimates, judgments, and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the condensed consolidated financial statements, as well as the reported amounts of revenues and expenses during the reporting period. These estimates, judgments, and assumptions include, but are not limited to the fair value of assets acquired and liabilities assumed through business combinations, the determination of the period of benefit for deferred commissions, certain assumptions used in the valuation of equity awards, and assumptions used in the valuation of non-marketable equity investments. Actual results could differ from those estimates and such differences could be material to our condensed consolidated financial statements.
Segment Information	Segment Information We operate in one operating segment, cloud applications. Operating segments are defined as components of an enterprise where separate financial information is evaluated regularly by the chief operating decision maker, who is our chief executive officer, in deciding how to allocate resources and assessing performance. Our chief operating decision maker allocates resources and assesses performance based upon discrete financial information at the consolidated level.
Recently Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements	Recently Adopted Accounting Pronouncements ASU No. 2016-13 In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which requires the measurement and recognition of expected credit losses for financial assets held at amortized cost, including trade receivables. It also eliminates the concept of other-than-temporary impairment and requires credit losses related to available-for-sale debt securities to be recorded through an allowance for credit losses rather than as a reduction in the amortized cost basis of the securities. We adopted this standard effective February 1, 2020, using a modified retrospective approach, which resulted in a cumulative-effect adjustment of $0.2 million to Accumulated deficit. Under the new standard, we assess our allowance for credit losses on trade receivables by taking into consideration forecasts of future economic conditions, information about past events, such as our historical trend of write-offs, and customer-specific circumstances, such as bankruptcies and disputes. The allowance for credit losses on trade receivables is recorded in operating expenses on our condensed consolidated statements of operations. With respect to available-for-sale debt securities, when the fair value of the security is below its amortized cost, the amortized cost should be written down to its fair value if i) it is more likely than not that management is required to sell the impaired security before recovery of its amortized basis or ii) management has the intention to sell the security. If neither of the conditions are met, we must determine whether the impairment is due to credit losses. To determine the amount of credit losses, we compare the present value of the expected cash flows of the security, derived by taking into account the issuers’ credit ratings and remaining payment terms, with its amortized cost basis. The amount of impairment recognized is limited to the excess of the amortized cost over the fair value of the security. An allowance for credit losses for the excess of amortized cost over the expected cash flows is recorded in Other income (expense), net on our condensed consolidated statements of operations. Non-credit related impairment losses are recorded in Other comprehensive income (loss) (“OCI”). ASU No. 2018-15 In August 2018, the FASB issued ASU No. 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract , 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. The new standard requires capitalized costs to be amortized on a straight-line basis generally over the term of the arrangement, and the financial statement presentation for these capitalized costs would be the same as that of the fees related to the hosting arrangements. We adopted this standard effective February 1, 2020, using a prospective approach. The adoption of this new standard did not have a material impact on our condensed consolidated financial statements. Subsequent impact on our condensed consolidated financial statements will depend on the magnitude of implementation costs to be incurred. Implementation costs capitalized subsequent to adoption will be recognized in operating expenses on our condensed consolidated statements of operations over the noncancelable period of the hosting arrangement plus any renewal periods reasonably certain to be taken. ASU No. 2019-12 In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which simplifies accounting guidance for certain tax matters including franchise taxes, certain transactions that result in a step-up in tax basis of goodwill, and enacted changes in tax laws in interim periods. In addition, it eliminates a company’s need to evaluate certain exceptions relating to the incremental approach for intra-period tax allocation, accounting for basis differences when there are ownership changes in foreign investments, and interim period income tax accounting for year-to-date losses that exceed anticipated losses. We adopted this standard effective February 1, 2020. We adopted the amendments in this update on a retrospective basis for the provision related to franchise taxes and prospectively for all other applicable amendments. The adoption of this new standard did not have a material impact on our condensed consolidated financial statements. Recently Issued Accounting Pronouncements ASU No. 2020-04 In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting , which provides temporary optional expedients and exceptions to GAAP guidance on contract modifications to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (“LIBOR”) to alternative reference rates. We may elect to apply the amendments prospectively through December 31, 2022. The impact on our condensed consolidated financial statements from the adoption of this standard is expected to be immaterial. ASU No. 2020-06 In August 2020, the FASB issued ASU No. 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity , which simplifies the accounting for certain convertible instruments, amends the guidance on derivative scope exceptions for contracts in an entity's own equity, and modifies the guidance on diluted earnings per share calculations as a result of these changes. This new standard is effective for our interim and annual periods beginning February 1, 2022, and earlier adoption is permitted. We may elect to apply the amendments on a retrospective or modified retrospective basis. We are currently evaluating the impact of the adoption of this standard on our condensed consolidated financial statements.
Investments	We classify our debt securities as available-for-sale at the time of purchase and reevaluate such classification as of each balance sheet date. We consider all debt securities as available for use in current operations, including those with maturity dates beyond one year, and therefore classify these securities as current assets on the condensed consolidated balance sheets. Debt securities included in Marketable securities on the condensed consolidated balance sheets consist of securities with original maturities at the time of purchase greater than three months, and the remainder of the securities is included in Cash and cash equivalents.
Fair Value Measurements	We measure our cash equivalents, marketable securities, and foreign currency derivative contracts at fair value at each reporting period using a fair value hierarchy that requires that we maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument’s classification within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Three levels of inputs may be used to measure fair value: Level 1 — Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 2 — Other inputs that are directly or indirectly observable in the marketplace. Level 3 — Unobservable inputs that are supported by little or no market activity.
Derivatives	We conduct business on a global basis in multiple foreign currencies, subjecting Workday to foreign currency risk. To mitigate this risk, we utilize hedging contracts as described below. We do not enter into any derivatives for trading or speculative purposes. Our foreign currency contracts are classified within Level 2 of the fair value hierarchy because the valuation inputs are based on quoted prices and market observable data of similar instruments in active markets, such as currency spot and forward rates. Foreign Currency Forward Contracts Designated as Cash Flow Hedges We are exposed to foreign currency fluctuations resulting from customer contracts denominated in foreign currencies. We have a hedging program in which we enter into foreign currency forward contracts related to certain customer contracts. We designate these forward contracts as cash flow hedging instruments since the accounting criteria for such designation have been met. Foreign Currency Forward Contracts Not Designated as Hedges We also enter into foreign currency forward contracts to hedge a portion of our net outstanding monetary assets and liabilities. These forward contracts are intended to offset the foreign currency gains or losses associated with the underlying monetary assets and liabilities and are recorded on the condensed consolidated balance sheets at fair value. These forward contracts are not designated as hedging instruments under applicable accounting guidance, and therefore all changes in the fair value of these forward contracts are recorded in Other income (expense), net on the condensed consolidated statements of operations. Cash flows from such forward contracts are classified as operating activities.
Convertible Debt	In accounting for the issuance of the Notes, we separated each of the Notes into liability and equity components. The carrying amounts of the liability components were calculated by measuring the fair value of similar liabilities that do not have associated convertible features. The carrying amounts of the equity components representing the conversion option were determined by deducting the fair value of the liability components from the par value of the respective Notes. These differences represent debt discounts that are amortized to interest expense over the respective terms of the Notes using the effective interest rate method. The gross carrying amounts of the equity components recorded were $68 million and $223 million for the 2020 Notes and 2022 Notes, respectively, and were included in Additional paid-in capital on the condensed consolidated balance sheets upon issuance. The equity components are not remeasured as long as they continue to meet the conditions for equity classification. The effective interest rate of the liability component of the 2020 Notes was 6.25%, and the effective interest rate of the liability component of the 2022 Notes is 4.60%. The interest rates were based on the interest rates of similar liabilities at the time of issuance that did not have associated convertible features.In accounting for the issuance costs related to the Notes, we allocated the total amount of issuance costs incurred to liability and equity components based on their relative values. Issuance costs attributable to the liability components are being amortized on a straight-line basis, which approximates the effective interest rate method, to interest expense over the respective terms of the Notes. The issuance costs attributable to the equity components were netted against the respective equity components in Additional paid-in capital.
Net Loss Per Share	Basic net loss per share attributable to common stockholders is computed by dividing the net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period, net of treasury stock. Diluted net loss per share is computed by giving effect to all potential shares of common stock, including our outstanding stock options, common stock related to unvested RSUs and PRSUs, common stock related to convertible senior notes to the extent dilutive, outstanding warrants, and common stock issuable pursuant to the ESPP. Basic and diluted net loss per share was the same for each period presented, as the inclusion of all potential common shares outstanding would have been anti-dilutive. The net loss per share attributable to common stockholders is allocated based on the contractual participation rights of the Class A common shares and Class B common shares as if the loss for the period had been distributed. As the liquidation and dividend rights are identical, the net loss attributable to common stockholders is allocated on a proportionate basis.

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jul. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Summary of Debt Securities	As of July 31, 2020, debt securities consisted of the following (in thousands): Amortized Cost Unrealized Gains Unrealized Losses Aggregate Fair Value U.S. treasury securities $ 388,208 $ 881 $ (1) $ 389,088 U.S. agency obligations 517,996 231 (116) 518,111 Corporate bonds 430,071 4,269 — 434,340 Commercial paper 267,241 — — 267,241 $ 1,603,516 $ 5,381 $ (117) $ 1,608,780 Included in Cash and cash equivalents $ 94,938 $ — $ — $ 94,938 Included in Marketable securities $ 1,508,578 $ 5,381 $ (117) $ 1,513,842 As of January 31, 2020, debt securities consisted of the following (in thousands): Amortized Cost Unrealized Gains Unrealized Losses Aggregate Fair Value U.S. treasury securities $ 312,183 $ 492 $ (5) $ 312,670 U.S. agency obligations 169,613 99 (44) 169,668 Corporate bonds 504,434 2,476 — 506,910 Commercial paper 364,701 — — 364,701 $ 1,350,931 $ 3,067 $ (49) $ 1,353,949 Included in Cash and cash equivalents $ 140,517 $ — $ — $ 140,517 Included in Marketable securities $ 1,210,414 $ 3,067 $ (49) $ 1,213,432
Equity Investments	Equity investments consisted of the following (in thousands): Condensed Consolidated Balance Sheets Location July 31, 2020 January 31, 2020 Money market funds Cash and cash equivalents $ 952,987 $ 386,909 Equity investments accounted for under the equity method Other assets 48,228 — Non-marketable equity investments measured using the measurement alternative Other assets 65,610 59,026 $ 1,066,825 $ 445,935
Gain (Loss) on Securities	Total realized and unrealized gains and losses associated with our equity investments consisted of the following (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Net realized gains (losses) recognized on equity investments sold $ — $ — $ 1,591 $ 6,844 Net unrealized gains (losses) recognized on equity investments held 1,909 2,169 (2,187) 2,169 Total net gains (losses) recognized in Other income (expense), net $ 1,909 $ 2,169 $ (596) $ 9,013

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jul. 31, 2020
Fair Value Disclosures [Abstract]
Information about Assets that are Measured at Fair Value on a Recurring Basis	The following table presents information about our assets and liabilities that are measured at fair value on a recurring basis and their assigned levels within the valuation hierarchy as of July 31, 2020 (in thousands): Level 1 Level 2 Level 3 Total U.S. treasury securities $ 389,088 $ — $ — $ 389,088 U.S. agency obligations — 518,111 — 518,111 Corporate bonds — 434,340 — 434,340 Commercial paper — 267,241 — 267,241 Money market funds 952,987 — — 952,987 Foreign currency derivative assets — 16,806 — 16,806 Total assets $ 1,342,075 $ 1,236,498 $ — $ 2,578,573 Foreign currency derivative liabilities $ — $ 20,986 $ — $ 20,986 Total liabilities $ — $ 20,986 $ — $ 20,986 The following table presents information about our assets and liabilities that are measured at fair value on a recurring basis and their assigned levels within the valuation hierarchy as of January 31, 2020 (in thousands): Level 1 Level 2 Level 3 Total U.S. treasury securities $ 312,670 $ — $ — $ 312,670 U.S. agency obligations — 169,668 — 169,668 Corporate bonds — 506,910 — 506,910 Commercial paper — 364,701 — 364,701 Money market funds 386,909 — — 386,909 Foreign currency derivative assets — 33,274 — 33,274 Total assets $ 699,579 $ 1,074,553 $ — $ 1,774,132 Foreign currency derivative liabilities $ — $ 3,996 $ — $ 3,996 Total liabilities $ — $ 3,996 $ — $ 3,996
Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments	The following table presents the carrying amounts and estimated fair values of our financial instruments that are not recorded at fair value on the condensed consolidated balance sheets (in thousands): July 31, 2020 January 31, 2020 Net Carrying Amount Estimated Fair Value Net Carrying Amount Estimated Fair Value 1.50% Convertible senior notes $ — $ — $ 244,319 $ 571,057 0.25% Convertible senior notes 1,041,562 1,544,450 1,017,967 1,587,978

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	6 Months Ended
	Jul. 31, 2020
Property, Plant and Equipment [Abstract]
Summary of Property and Equipment, Net	Property and equipment, net consisted of the following (in thousands): July 31, 2020 January 31, 2020 Land and land improvements $ 37,065 $ 38,737 Buildings 491,571 489,028 Computers, equipment, and software 831,593 723,482 Furniture and fixtures 53,814 51,917 Leasehold improvements 199,347 189,668 Property and equipment, gross 1,613,390 1,492,832 Less accumulated depreciation and amortization (655,956) (556,653) Property and equipment, net $ 957,434 $ 936,179

Acquisition-Related Intangibl_2

Acquisition-Related Intangible Assets, Net (Tables)	6 Months Ended
	Jul. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Acquired Assets	Acquisition-related intangible assets, net consisted of the following (in thousands): July 31, 2020 January 31, 2020 Developed technology $ 218,400 $ 218,400 Customer relationships 224,000 224,000 Trade name 12,400 12,400 Backlog 11,000 11,000 Acquisition-related intangible assets, gross 465,800 465,800 Less accumulated amortization (188,953) (157,399) Acquisition-related intangible assets, net $ 276,847 $ 308,401
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	As of July 31, 2020, our future estimated amortization expense related to acquisition-related intangible assets is as follows (in thousands): Fiscal Period: Remainder of 2021 $ 28,221 2022 52,833 2023 50,109 2024 38,933 2025 27,500 Thereafter 79,251 Total $ 276,847 Fiscal Period: Remainder of 2021 $ 1,437 2022 2,620 2023 2,348 2024 2,040 2025 1,569 Thereafter 6,268 Total $ 16,282

Other Assets (Tables)

Other Assets (Tables)	6 Months Ended
	Jul. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets	Other assets consisted of the following (in thousands): July 31, 2020 January 31, 2020 Non-marketable equity and other investments (1) $ 78,239 $ 75,004 Equity investments accounted for under the equity method 48,228 — Prepayments for goods and services 22,711 27,928 Technology patents and other intangible assets, net 16,282 17,898 Net deferred tax assets 7,450 6,912 Deposits 5,847 6,335 Derivative assets 4,440 9,529 Other 1,880 999 Total $ 185,077 $ 144,605 (1) Included in non-marketable equity and other investments are investments in loan receivables of privately held companies, which are carried at amortized cost. The carrying values of these loan receivables were $13 million and $16 million as of July 31, 2020, and January 31, 2020, respectively. As of July 31, 2020, the allowance for credit losses on this balance was immaterial.
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	As of July 31, 2020, our future estimated amortization expense related to acquisition-related intangible assets is as follows (in thousands): Fiscal Period: Remainder of 2021 $ 28,221 2022 52,833 2023 50,109 2024 38,933 2025 27,500 Thereafter 79,251 Total $ 276,847 Fiscal Period: Remainder of 2021 $ 1,437 2022 2,620 2023 2,348 2024 2,040 2025 1,569 Thereafter 6,268 Total $ 16,282

Derivative Instruments (Tables)

Derivative Instruments (Tables)	6 Months Ended
	Jul. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The fair values of outstanding derivative instruments were as follows (in thousands): Condensed Consolidated Balance Sheets Location July 31, 2020 January 31, 2020 Derivative assets: Foreign currency forward contracts designated as cash flow hedges Prepaid expenses and other current assets $ 11,996 $ 20,944 Foreign currency forward contracts designated as cash flow hedges Other assets 4,437 9,529 Foreign currency forward contracts not designated as hedges Prepaid expenses and other current assets 370 2,801 Foreign currency forward contracts not designated as hedges Other assets 3 — Total derivative assets $ 16,806 $ 33,274 Derivative liabilities: Foreign currency forward contracts designated as cash flow hedges Accrued expenses and other current liabilities $ 8,964 $ 1,211 Foreign currency forward contracts designated as cash flow hedges Other liabilities 9,498 1,809 Foreign currency forward contracts not designated as hedges Accrued expenses and other current liabilities 2,524 976 Foreign currency forward contracts not designated as hedges Other liabilities — — Total derivative liabilities $ 20,986 $ 3,996
Schedule of Cash Flow Hedges On The Condensed Consolidated Statements of Operations	The effect of foreign currency forward contracts designated as cash flow hedges on the condensed consolidated statements of operations was as follows (in thousands): Condensed Consolidated Statements of Operations Location Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Total revenues Revenues $ 1,061,967 $ 887,752 $ 2,080,352 $ 1,712,807 Amount of gains (losses) related to foreign currency forward contracts designated as cash flow hedges Revenues 5,278 896 9,764 912
Derivative Instruments, Gain (Loss)	Pre-tax gains (losses) associated with foreign currency forward contracts designated as cash flow hedges were as follows (in thousands): Condensed Consolidated Statements of Operations and Statements of Comprehensive Loss Locations Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Gains (losses) recognized in OCI Net change in market value of effective foreign currency forward exchange contracts $ (52,558) $ 21,928 $ (15,765) $ 37,790 Gains (losses) reclassified from AOCI into income (effective portion) Revenues 5,278 896 9,764 912 Gains (losses) associated with foreign currency forward contracts not designated as hedges were as follows (in thousands): Condensed Consolidated Statements of Operations Location Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Foreign currency forward contracts not designated as hedges Other income (expense), net $ (4,040) $ 2,229 $ 1,373 $ 4,627
Offsetting Assets	As of July 31, 2020, information related to these offsetting arrangements was as follows (in thousands): Gross Amounts of Recognized Assets Gross Amounts Offset on the Condensed Consolidated Balance Sheets Net Amounts of Assets Presented on the Condensed Consolidated Balance Sheets Gross Amounts Not Offset on the Condensed Consolidated Balance Sheets Net Assets Exposed Financial Instruments Cash Collateral Received Derivative assets: Counterparty A $ 289 $ — $ 289 $ (289) $ — $ — Counterparty B 15,113 — 15,113 (15,113) — — Counterparty C 1,404 — 1,404 (1,404) — — Total $ 16,806 $ — $ 16,806 $ (16,806) $ — $ —
Offsetting Liabilities	Gross Amounts of Recognized Liabilities Gross Amounts Offset on the Condensed Consolidated Balance Sheets Net Amounts of Liabilities Presented on the Condensed Consolidated Balance Sheets Gross Amounts Not Offset on the Condensed Consolidated Balance Sheets Net Liabilities Exposed Financial Instruments Cash Collateral Pledged Derivative liabilities: Counterparty A $ 2,086 $ — $ 2,086 $ (289) $ — $ 1,797 Counterparty B 8,504 — 8,504 (15,113) — (6,609) Counterparty C 10,396 — 10,396 (1,404) — 8,992 Total $ 20,986 $ — $ 20,986 $ (16,806) $ — $ 4,180

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jul. 31, 2020
Debt Disclosure [Abstract]
Outstanding Debt	Outstanding debt consisted of the following (in thousands): July 31, 2020 January 31, 2020 2020 Notes, net of unamortized debt discounts of $0 and $5,319, respectively, and unamortized debt issuance costs of $0 and $307, respectively $ — $ 244,319 2022 Notes, net of unamortized debt discounts of $102,238 and $124,403, respectively, and unamortized debt issuance costs of $6,200 and $7,630, respectively 1,041,562 1,017,967 Term Loan, net of unamortized debt discounts of $1,885 and $0, respectively, and unamortized debt issuance costs of $173 and $0, respectively 747,942 — Total debt $ 1,789,504 $ 1,262,286 Less: current maturities $ (37,500) $ (244,319) Total debt, noncurrent $ 1,752,004 $ 1,017,967
Schedule of Maturities of Long-term Debt	As of July 31, 2020, expected future principal payments on our outstanding debt are as follows (in thousands): Fiscal Period: Remainder of 2021 $ 18,750 2022 37,500 2023 1,225,000 2024 75,000 2025 75,000 Thereafter 468,750 Total $ 1,900,000
Schedule of Interest Expense	The following table sets forth total interest expense recognized related to our debt (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Contractual interest expense $ 4,799 $ 1,657 $ 7,430 $ 3,313 Interest cost related to amortization of debt discount 13,665 13,418 27,620 26,672 Interest cost related to amortization of debt issuance costs 863 883 1,750 1,766 Total interest expense $ 19,327 $ 15,958 $ 36,800 $ 31,751

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jul. 31, 2020
Leases [Abstract]
Components of Lease Expense	The components of operating lease expense were as follows (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Operating lease cost $ 22,336 $ 18,961 $ 43,235 $ 37,475 Short-term lease cost 4,080 4,205 8,432 7,845 Variable lease cost 4,886 5,138 9,336 8,564 Total operating lease cost $ 31,302 $ 28,304 $ 61,003 $ 53,884
Information Related to Right-of-Use Assets and Lease Liabilities	Supplemental cash flow information related to our operating leases was as follows (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Cash paid for operating lease liabilities $ 21,153 $ 19,324 $ 42,165 $ 35,508 Operating lease right-of-use assets obtained in exchange for new operating lease liabilities (1) 32,216 31,071 70,503 327,021 (1) Prior year activity includes $279 million for operating leases existing on February 1, 2019, and $48 million for operating leases that commenced in the first half of fiscal 2020. Other information related to our operating leases was as follows: July 31, 2020 January 31, 2020 Weighted average remaining lease term (in years) 6 6 Weighted average discount rate 3.08% 3.36%
Maturities of Operating Lease Liabilities	As of July 31, 2020, maturities of operating lease liabilities are as follows (in thousands): Fiscal Period: Remainder of 2021 $ 41,143 2022 86,814 2023 78,328 2024 69,058 2025 54,457 Thereafter 57,261 Total lease payments 387,061 Less imputed interest (39,656) Total $ 347,405

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jul. 31, 2020
Share-based Payment Arrangement [Abstract]
Summary of Information Related to Restricted Stock Units Activity	A summary of information related to RSU activity during the six months ended July 31, 2020, is as follows: Number of Shares Weighted-Average Grant Date Fair Value Balance as of January 31, 2020 11,914,064 $ 147.96 RSUs granted 7,609,940 148.12 RSUs vested (3,264,103) 139.82 RSUs forfeited (565,835) 145.37 Balance as of July 31, 2020 15,694,066 149.82
Summary of Information Related to Stock Option Activity	A summary of information related to stock option activity during the six months ended July 31, 2020, is as follows (in millions, except share and per share data): Outstanding Stock Options Weighted-Average Exercise Price Aggregate Intrinsic Value Balance as of January 31, 2020 3,435,577 $ 9.78 $ 601 Stock options exercised (1,155,404) 6.19 Stock options canceled (18,719) 42.92 Balance as of July 31, 2020 2,261,454 11.34 383 Vested and expected to vest as of July 31, 2020 2,251,777 11.23 382 Exercisable as of July 31, 2020 2,030,205 8.91 349

Other Income (Expense), Net (Ta

Other Income (Expense), Net (Tables)	6 Months Ended
	Jul. 31, 2020
Other Income and Expenses [Abstract]
Other Income (Expense), Net	Other income (expense), net consisted of the following (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Interest income $ 4,978 $ 11,239 $ 12,845 $ 21,589 Interest expense (1) (19,302) (14,473) (36,841) (26,074) Other (2) 2,871 3,128 1,570 11,520 Other income (expense), net $ (11,453) $ (106) $ (22,426) $ 7,035 (1) Interest expense includes the contractual interest expense of the Notes and Term Loan, and the related non-cash interest expense attributable to amortization of the debt discounts and debt issuance costs, net of capitalized interest costs. For further information, see Note 10, Debt. (2) Other includes the net gains (losses) from our equity investments, the commitment fee on the Revolving Credit Facility, and amortization of issuance costs on the Revolving Credit Facility. For further information, see Note 3, Investments, and Note 10, Debt.

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	6 Months Ended
	Jul. 31, 2020
Earnings Per Share [Abstract]
Summary of Calculation of Basic and Diluted Net Loss Per Share	The following table presents the calculation of basic and diluted net loss attributable to common stockholders per share (in thousands, except per share data): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 Class A Class B Class A Class B Class A Class B Class A Class B Net loss per share, basic and diluted: Numerator: Allocation of distributed net loss $ (20,732) $ (7,284) $ (86,481) $ (34,231) $ (137,980) $ (48,404) $ (169,067) $ (67,920) Denominator: Weighted-average common shares outstanding 175,441 60,561 162,193 64,199 173,590 60,893 160,414 64,443 Basic and diluted net loss per share $ (0.12) $ (0.12) $ (0.53) $ (0.53) $ (0.79) $ (0.79) $ (1.05) $ (1.05)
Shares Excluded from Diluted Loss Per Share	Potentially dilutive securities that are not included in the calculation of diluted net loss per share because doing so would be antidilutive are as follows (in thousands): As of July 31, 2020 2019 Outstanding common stock options 2,261 4,512 Unvested RSUs and PRSUs 16,326 14,288 Shares related to the convertible senior notes 7,818 10,876 Shares subject to warrants related to the issuance of convertible senior notes 10,876 10,876 Shares issuable pursuant to the ESPP 463 394 Total 37,744 40,946

Geographic Information (Tables)

Geographic Information (Tables)	6 Months Ended
	Jul. 31, 2020
Segment Reporting [Abstract]
Summary of Revenues by Geographic Area	The following table sets forth revenue by geographic area (in thousands): Three Months Ended July 31, Six Months Ended July 31, 2020 2019 2020 2019 United States $ 805,056 $ 676,568 $ 1,567,396 $ 1,305,097 Other countries 256,911 211,184 512,956 407,710 Total $ 1,061,967 $ 887,752 $ 2,080,352 $ 1,712,807
Long-lived Assets by Geographic Areas	Aggregate Property and equipment, net, and Operating lease right-of-use assets by geographic area was as follows (in thousands): July 31, 2020 January 31, 2020 United States $ 1,084,136 $ 1,064,292 Ireland 126,021 122,619 Other countries 71,932 40,170 Total $ 1,282,089 $ 1,227,081

Overview and Basis of Present_3

Overview and Basis of Presentation (Detail)	6 Months Ended
	Jul. 31, 2020segment
Accounting Policies [Abstract]
Number of operating segments	1

Accounting Standards - Recently

Accounting Standards - Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 31, 2020	Apr. 30, 2020	Feb. 01, 2020	Jan. 31, 2020	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Stockholders' equity	$ 2,838,478			$ 2,486,551	$ 2,210,285
Accumulated Deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity	$ (2,813,943)	$ (2,785,927)		(2,627,359)	$ (2,383,672)	$ (2,262,960)	$ (2,146,304)
Accumulated Deficit | Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Stockholders' equity			$ (200)	$ (200)			$ (381)

Investments - Summary of Market

Investments - Summary of Marketable Securities (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 1,603,516	$ 1,350,931
Unrealized Gains	5,381	3,067
Unrealized Losses	(117)	(49)
Aggregate Fair Value	1,608,780	1,353,949
U.S. treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	388,208	312,183
Unrealized Gains	881	492
Unrealized Losses	(1)	(5)
Aggregate Fair Value	389,088	312,670
U.S. agency obligations
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	517,996	169,613
Unrealized Gains	231	99
Unrealized Losses	(116)	(44)
Aggregate Fair Value	518,111	169,668
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	430,071	504,434
Unrealized Gains	4,269	2,476
Unrealized Losses	0	0
Aggregate Fair Value	434,340	506,910
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	267,241	364,701
Unrealized Gains	0	0
Unrealized Losses	0	0
Aggregate Fair Value	267,241	364,701
Included in Cash and cash equivalents
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	94,938	140,517
Unrealized Gains	0	0
Unrealized Losses	0	0
Aggregate Fair Value	94,938	140,517
Included in Marketable securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,508,578	1,210,414
Unrealized Gains	5,381	3,067
Unrealized Losses	(117)	(49)
Aggregate Fair Value	$ 1,513,842	$ 1,213,432

Investments - Narrative (Detail

Investments - Narrative (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jul. 31, 2020	Apr. 30, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	Jan. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Proceeds of sale of marketable securities, debt	$ 0		$ 5,000,000	$ 5,000,000	$ 5,000,000
Payments to acquire equity method investments		$ 50,000,000
Equity method investment, ownership percentage		6.00%
Equity method investment	48,228,000			48,228,000		$ 0
Equity method investment, impairment loss	0			0
Upward price adjustment to non-marketable equity investments	0		0	0	0
Downward price adjustment to non-marketable equity investments	0		0	0	0
Impairment loss on non-marketable equity securities	0		0	3,000,000	0
Marketable equity investments	0			0		$ 0
Proceeds from sale of available-for-sale securities, equity	$ 0		$ 0	$ 0	51,000,000
Gain on sale of equity securities, FV-NI, available-for-sale					$ 7,000,000

Investments - Equity Investment

Investments - Equity Investments (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Money market funds	$ 952,987	$ 386,909
Equity investments accounted for under the equity method	48,228	0
Non-marketable equity investments measured using the measurement alternative	65,610	59,026
Equity investments	$ 1,066,825	$ 445,935

Investments - Equity Investme_2

Investments - Equity Investments Realized and Unrealized Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Net realized gains (losses) recognized on equity investments sold	$ 0	$ 0	$ 1,591	$ 6,844
Net unrealized gains (losses) recognized on equity investments held	1,909	2,169	(2,187)	2,169
Total net gains (losses) recognized in Other income (expense), net	$ 1,909	$ 2,169	$ (596)	$ 9,013

Fair Value Measurements - Infor

Fair Value Measurements - Information about Assets that are Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	$ 1,608,780	$ 1,353,949
Foreign currency derivative assets	16,806
Foreign currency derivative liabilities	20,986
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative assets	16,806	33,274
Total assets	2,578,573	1,774,132
Foreign currency derivative liabilities	20,986	3,996
Total liabilities	20,986	3,996
Fair Value, Measurements, Recurring | U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	389,088	312,670
Fair Value, Measurements, Recurring | U.S. agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	518,111	169,668
Fair Value, Measurements, Recurring | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	434,340	506,910
Fair Value, Measurements, Recurring | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	267,241	364,701
Fair Value, Measurements, Recurring | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	952,987	386,909
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative assets	0	0
Total assets	1,342,075	699,579
Foreign currency derivative liabilities	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring | Level 1 | U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	389,088	312,670
Fair Value, Measurements, Recurring | Level 1 | U.S. agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 1 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 1 | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 1 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	952,987	386,909
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative assets	16,806	33,274
Total assets	1,236,498	1,074,553
Foreign currency derivative liabilities	20,986	3,996
Total liabilities	20,986	3,996
Fair Value, Measurements, Recurring | Level 2 | U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 2 | U.S. agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	518,111	169,668
Fair Value, Measurements, Recurring | Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	434,340	506,910
Fair Value, Measurements, Recurring | Level 2 | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	267,241	364,701
Fair Value, Measurements, Recurring | Level 2 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	0	0
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative assets	0	0
Total assets	0	0
Foreign currency derivative liabilities	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring | Level 3 | U.S. treasury securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 3 | U.S. agency obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 3 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 3 | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities	0	0
Fair Value, Measurements, Recurring | Level 3 | Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 0	$ 0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020	Sep. 30, 2017	Jun. 30, 2013
2020 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contractual interest rate	1.50%			1.50%
Net Carrying Amount	$ 0	$ 244,319
Estimated Fair Value	$ 0	571,057
2022 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contractual interest rate	0.25%		0.25%
Net Carrying Amount	$ 1,041,562	1,017,967
Estimated Fair Value	$ 1,544,450	$ 1,587,978

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - USD ($)	6 Months Ended
	Jul. 31, 2020	Apr. 30, 2020	Jan. 31, 2020	Sep. 30, 2017	Jun. 30, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Share price (in dollars per share)	$ 180.92
Long-term debt	$ 1,789,504,000		$ 1,262,286,000
Term Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contractual interest rate	2.12%
2020 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Convertible senior notes, principal amount					$ 250,000,000
Contractual interest rate	1.50%				1.50%
Long-term debt	$ 0		244,319,000
2022 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Convertible senior notes, principal amount				$ 1,150,000,000
Contractual interest rate	0.25%			0.25%
If-converted value in excess of principal	$ 264,000,000
Long-term debt	1,041,562,000		$ 1,017,967,000
Credit Agreement | Term Loan
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Convertible senior notes, principal amount		$ 750,000,000
Long-term debt	748,000,000
Revolving Credit Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term line of credit	0
Revolving Credit Facility | Credit Agreement | Unsecured Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Maximum borrowing capacity		$ 750,000,000
Long-term line of credit	$ 0

Deferred Costs (Details)

Deferred Costs (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	Jan. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred sales commission	$ 329,000,000		$ 329,000,000		$ 323,000,000
Amortization of deferred costs	27,349,000	$ 22,002,000	53,409,000	$ 42,882,000
Capitalized contract cost, impairment loss	$ 0	$ 0	$ 0	$ 0

Property and Equipment, Net - S

Property and Equipment, Net - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,613,390	$ 1,492,832
Less accumulated depreciation and amortization	(655,956)	(556,653)
Property and equipment, net	957,434	936,179
Land and land improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	37,065	38,737
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, gross	491,571	489,028
Computers, equipment, and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	831,593	723,482
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment, gross	53,814	51,917
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 199,347	$ 189,668

Property and Equipment, Net - N

Property and Equipment, Net - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 57,000,000	$ 47,000,000	$ 112,000,000	$ 88,000,000
Interest costs capitalized	$ 0	$ 2,000,000	$ 0	$ 6,000,000

Acquisition-Related Intangibl_3

Acquisition-Related Intangible Assets, Net - Schedule of Acquired Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	Jan. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 465,800		$ 465,800		$ 465,800
Less accumulated amortization	(188,953)		(188,953)		(157,399)
Total	276,847		276,847		308,401
Developed technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	218,400		218,400		218,400
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	224,000		224,000		224,000
Trade name
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	12,400		12,400		12,400
Backlog
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	11,000		11,000		$ 11,000
Acquired Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 16,000	$ 20,000	$ 32,000	$ 39,000

Acquisition-Related Intangibl_4

Acquisition-Related Intangible Assets, Net - Schedule of Future Amortization Expense (Detail) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2021	$ 28,221
2022	52,833
2023	50,109
2024	38,933
2025	27,500
Thereafter	79,251
Total	$ 276,847	$ 308,401

Other Assets - Schedule of Othe

Other Assets - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Other Assets [Line Items]
Non-marketable equity and other investments	$ 78,239	$ 75,004
Equity investments accounted for under the equity method	48,228	0
Prepayments for goods and services	22,711	27,928
Technology patents and other intangible assets, net	276,847	308,401
Net deferred tax assets	7,450	6,912
Deposits	5,847	6,335
Derivative assets	4,440	9,529
Other	1,880	999
Total	185,077	144,605
Technology patents and other intangible assets, net
Other Assets [Line Items]
Technology patents and other intangible assets, net	$ 16,282	$ 17,898

Other Assets - Narrative (Detai

Other Assets - Narrative (Details) - USD ($) $ in Millions	Jul. 31, 2020	Jan. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Loans receivable	$ 13	$ 16

Other Assets - Summary of Futur

Other Assets - Summary of Future Estimated Amortization Expense Related to Acquired Land Leasehold Interest and Technology Patents (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Remainder of 2021	$ 28,221
2022	52,833
2023	50,109
2024	38,933
2025	27,500
Thereafter	79,251
Total	276,847	$ 308,401
Technology patents and other intangible assets, net
Finite-Lived Intangible Assets [Line Items]
Remainder of 2021	1,437
2022	2,620
2023	2,348
2024	2,040
2025	1,569
Thereafter	6,268
Total	$ 16,282	$ 17,898

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 31, 2020	Jan. 31, 2020
Derivative [Line Items]
Net gains (losses) on cash flow hedges estimated to be reclassified into income within the next 12 months	$ 12
Not Designated as Hedging Instrument | Forward Contracts
Derivative [Line Items]
Derivative, notional amount	119	$ 246
Cash Flow Hedging | Designated as Hedging Instrument | Forward Contracts
Derivative [Line Items]
Derivative, notional amount	$ 1,100	$ 908
Cash Flow Hedging | Designated as Hedging Instrument | Forward Contracts | Maximum
Derivative [Line Items]
Derivative, remaining maturity	49 months

Derivative Instruments - Fair V

Derivative Instruments - Fair Values of Outstanding Derivative Instruments (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 16,806	$ 33,274
Derivative Liabilities	20,986	3,996
Forward Contracts | Not Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	370	2,801
Forward Contracts | Not Designated as Hedging Instrument | Other assets
Derivatives, Fair Value [Line Items]
Derivative Assets	3	0
Forward Contracts | Not Designated as Hedging Instrument | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	2,524	976
Forward Contracts | Not Designated as Hedging Instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0	0
Cash Flow Hedging | Forward Contracts | Designated as Hedging Instrument | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	11,996	20,944
Cash Flow Hedging | Forward Contracts | Designated as Hedging Instrument | Other assets
Derivatives, Fair Value [Line Items]
Derivative Assets	4,437	9,529
Cash Flow Hedging | Forward Contracts | Designated as Hedging Instrument | Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	8,964	1,211
Cash Flow Hedging | Forward Contracts | Designated as Hedging Instrument | Other liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 9,498	$ 1,809

Derivative Instruments - Effect

Derivative Instruments - Effect of Cash Flow Hedges on Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Total revenues	$ 1,061,967	$ 887,752	$ 2,080,352	$ 1,712,807
Designated as Hedging Instrument | Revenues
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gains (losses) related to foreign currency forward contracts designated as cash flow hedges	$ 5,278	$ 896	$ 9,764	$ 912

Derivative Instruments - Gains

Derivative Instruments - Gains (Losses) Associated with Foreign Currency Forward Contracts (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Other income (expense), net
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency forward contracts not designated as hedges	$ (4,040)	$ 2,229	$ 1,373	$ 4,627
Designated as Hedging Instrument | Revenues
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) reclassified from AOCI into income (effective portion)	5,278	896	9,764	912
Designated as Hedging Instrument | Net change in market value of effective foreign currency forward exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in OCI	$ (52,558)	$ 21,928	$ (15,765)	$ 37,790

Derivative Instruments - Offset

Derivative Instruments - Offsetting Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	$ 16,806	$ 33,274
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets	16,806
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(16,806)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	0
Counterparty A
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	289
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets	289
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(289)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	0
Counterparty B
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	15,113
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets	15,113
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(15,113)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	0
Counterparty C
Offsetting Assets [Line Items]
Gross Amounts of Recognized Assets	1,404
Gross Amounts Offset on the Condensed Consolidated Balance Sheets	0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets	1,404
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(1,404)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Received	0
Net Assets Exposed	$ 0

Derivative Instruments - Offs_2

Derivative Instruments - Offsetting Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$ 20,986	$ 3,996
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheets	20,986
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(16,806)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Pledged	0
Net Liabilities Exposed	4,180
Counterparty A
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	2,086
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheets	2,086
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(289)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Pledged	0
Net Liabilities Exposed	1,797
Counterparty B
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	8,504
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheets	8,504
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(15,113)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Pledged	0
Net Liabilities Exposed	(6,609)
Counterparty C
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	10,396
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	0
Net Amounts of Liabilities Presented in the Condensed Consolidated Balance Sheets	10,396
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Financial Instruments	(1,404)
Gross Amounts Not Offset in the Condensed Consolidated Balance Sheets, Cash Collateral Pledged	0
Net Liabilities Exposed	$ 8,992

Debt - Outstanding Debt (Detail

Debt - Outstanding Debt (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Debt Instrument [Line Items]
Total debt	$ 1,789,504	$ 1,262,286
Less: current maturities	(37,500)	(244,319)
Total debt, noncurrent	1,752,004	1,017,967
2020 Notes
Debt Instrument [Line Items]
Unamortized debt discount	0	5,319
Unamortized debt issuance costs	0	307
Total debt	0	244,319
2022 Notes
Debt Instrument [Line Items]
Unamortized debt discount	102,238	124,403
Unamortized debt issuance costs	6,200	7,630
Total debt	1,041,562	1,017,967
Term Loan
Debt Instrument [Line Items]
Unamortized debt discount	1,885	0
Unamortized debt issuance costs	173	0
Total debt	$ 747,942	$ 0

Debt - Schedule of Maturities o

Debt - Schedule of Maturities of Long-term Debt (Details) $ in Thousands	Jul. 31, 2020USD ($)
Debt Disclosure [Abstract]
Remainder of 2021	$ 18,750
2022	37,500
2023	1,225,000
2024	75,000
2025	75,000
Thereafter	468,750
Total	$ 1,900,000

Debt - Convertible Senior Notes

Debt - Convertible Senior Notes, Notes Hedges, Warrants Narrative (Details)	3 Months Ended		6 Months Ended
	Jul. 31, 2020USD ($)$ / sharesshares	Jul. 31, 2019USD ($)	Jul. 31, 2020USD ($)trading_day$ / sharesshares	Jul. 31, 2019USD ($)	Sep. 30, 2017USD ($)	Jun. 30, 2013USD ($)
Debt Instrument [Line Items]
Payments on convertible senior notes	$ 249,945,000	$ 27,000	$ 249,946,000	$ 27,000
2020 Notes
Debt Instrument [Line Items]
Contractual interest rate	1.50%		1.50%			1.50%
Convertible senior notes, principal amount						$ 250,000,000
Payments on convertible senior notes	$ 250,000,000
Carrying amount of the equity component	$ 68,000,000		$ 68,000,000
Effective interest rate of liability component	6.25%		6.25%
Liability issuance costs						5,000,000
Equity issuance costs						$ 2,000,000
2022 Notes
Debt Instrument [Line Items]
Contractual interest rate	0.25%		0.25%		0.25%
Convertible senior notes, principal amount					$ 1,150,000,000
Carrying amount of the equity component	$ 223,000,000		$ 223,000,000
Effective interest rate of liability component	4.60%		4.60%
Liability issuance costs					14,000,000
Equity issuance costs					$ 4,000,000
Face value per note
Debt Instrument [Line Items]
Convertible senior notes, principal amount	$ 1,000		$ 1,000
Shares related to the convertible senior notes
Debt Instrument [Line Items]
Repurchase of notes percentage			100.00%
Warrants expires in 2020
Debt Instrument [Line Items]
Shares covered by each purchased options or warrants (in shares) | shares	3,100,000		3,100,000
Number of trading days related to warrants (in days) | trading_day			60
Exercise price of warrants (in dollars per share) | $ / shares	$ 107.96		$ 107.96
Warrants expires In 2023
Debt Instrument [Line Items]
Shares covered by each purchased options or warrants (in shares) | shares	7,800,000		7,800,000
Number of trading days related to warrants (in days) | trading_day			60
Exercise price of warrants (in dollars per share) | $ / shares	$ 213.96		$ 213.96
Class A | 2020 Notes
Debt Instrument [Line Items]
Debt conversion, converted instrument, shares issued | shares	1,700,000
Initial conversion price (in dollars per share) | $ / shares	$ 81.74		$ 81.74
Indexed shares (in shares) | shares	3,100,000		3,100,000
Purchase of treasury stock from the exercise of convertible senior notes hedges (in shares) | shares	1,700,000
Class A | 2022 Notes
Debt Instrument [Line Items]
Debt instrument, convertible, number of shares | shares			6.7982
Initial conversion price (in dollars per share) | $ / shares	$ 147.10		$ 147.10
Indexed shares (in shares) | shares	7,800,000		7,800,000
Debt Conversion, Option One | Shares related to the convertible senior notes
Debt Instrument [Line Items]
Threshold trading days (in trading days) | trading_day			20
Threshold consecutive trading days | trading_day			30
Threshold percentage of conversion price			130.00%
Debt Conversion, Option Two | Shares related to the convertible senior notes
Debt Instrument [Line Items]
Threshold trading days (in trading days) | trading_day			5
Threshold consecutive trading days | trading_day			5
Debt Conversion, Option Two | Shares related to the convertible senior notes | Maximum
Debt Instrument [Line Items]
Threshold percentage of conversion price			98.00%

Debt - Credit Agreement, Term L

Debt - Credit Agreement, Term Loan and Revolving Credit Facility Narrative (Details) - USD ($)	Jul. 13, 2020	Apr. 02, 2020	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	Jan. 31, 2022	Apr. 02, 2025	Apr. 30, 2020	Jan. 31, 2020
Debt Instrument [Line Items]
Proceeds from borrowings on term loan, net			$ 250,000,000	$ 0	$ 747,795,000	$ 0
Long-term debt			1,789,504,000		1,789,504,000					$ 1,262,286,000
Debt, current			37,500,000		37,500,000					244,319,000
Total debt, noncurrent			1,752,004,000		1,752,004,000					$ 1,017,967,000
Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, fee amount			2,000,000		2,000,000
Additional borrowing capacity (up to)			250,000,000		250,000,000
Long-term line of credit			0		$ 0
Credit Agreement
Debt Instrument [Line Items]
Debt instrument, maximum leverage ratio					350.00%
Debt instrument, maximum leverage ratio step up					450.00%
Minimum | Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee percentage					0.09%
Maximum | Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee percentage					0.225%
Base Rate | Minimum | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percent)					0.00%
Base Rate | Maximum | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percent)					0.625%
London Interbank Offered Rate (LIBOR) | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percent)					1.00%
London Interbank Offered Rate (LIBOR) | Minimum | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percent)					1.00%
London Interbank Offered Rate (LIBOR) | Maximum | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percent)					1.625%
Federal Funds Rate | Credit Agreement
Debt Instrument [Line Items]
Basis spread on variable rate (percent)					0.50%
Term Loan
Debt Instrument [Line Items]
Proceeds from borrowings on term loan, net	$ 250,000,000	$ 500,000,000
Debt instrument, fee amount			2,000,000		$ 2,000,000
Debt, current			38,000,000		38,000,000
Total debt, noncurrent			$ 710,000,000		$ 710,000,000
Contractual interest rate			2.12%		2.12%
Effective interest rate			2.46%		2.46%
Term Loan | Forecast
Debt Instrument [Line Items]
Debt instrument, periodic payment, percentage of principal							1.25%	2.50%
Term Loan | Credit Agreement
Debt Instrument [Line Items]
Principal									$ 750,000,000
Long-term debt			$ 748,000,000		$ 748,000,000
Unsecured Debt | Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity									$ 750,000,000
Long-term line of credit			$ 0		$ 0

Debt - Schedule of Interest Exp

Debt - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Debt Disclosure [Abstract]
Contractual interest expense	$ 4,799	$ 1,657	$ 7,430	$ 3,313
Interest cost related to amortization of debt discount	13,665	13,418	27,620	26,672
Interest cost related to amortization of debt issuance costs	863	883	1,750	1,766
Total interest expense	$ 19,327	$ 15,958	$ 36,800	$ 31,751

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	Jan. 31, 2020
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 324,655		$ 324,655		$ 290,902
Operating lease liabilities	347,405		347,405		308,000
Operating lease, lease not yet commenced, payment	$ 22,000		$ 22,000
Minimum
Lessee, Lease, Description [Line Items]
Operating lease, lease not yet commenced, term (years)	1 year		1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating lease, lease not yet commenced, term (years)	5 years		5 years
Pleasanton, California | Chairman, Mr. Duffield
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 55,000		$ 55,000		57,000
Operating lease liabilities	$ 67,000		$ 67,000		$ 70,000
Term of agreements (in years)	4 years		4 years
Rent expense	$ 4,000	$ 3,000	$ 7,000	$ 6,000

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Leases [Abstract]
Operating lease cost	$ 22,336	$ 18,961	$ 43,235	$ 37,475
Short-term lease cost	4,080	4,205	8,432	7,845
Variable lease cost	4,886	5,138	9,336	8,564
Total operating lease cost	$ 31,302	$ 28,304	$ 61,003	$ 53,884

Leases - Information Related to

Leases - Information Related to Our Right-of-Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Feb. 01, 2019	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	Jan. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash paid for operating lease liabilities		$ 21,153	$ 19,324	$ 42,165	$ 35,508
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities		$ 32,216	$ 31,071	$ 70,503	327,021
Weighted average remaining lease term (in years)		6 years		6 years		6 years
Weighted average discount rate, percent		3.08%		3.08%		3.36%
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities	$ 279,000
Accounting Standards Update 2016-02, Commenced Subsequent To Adoption
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities					$ 48,000

Leases - Maturities of Operatin

Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Remainder of 2021	$ 41,143
2022	86,814
2023	78,328
2024	69,058
2025	54,457
Thereafter	57,261
Total lease payments	387,061
Less imputed interest	(39,656)
Total	$ 347,405	$ 308,000

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) $ in Millions	Jul. 31, 2020USD ($)
Third-Party Hosted Infrastructure Platforms
Loss Contingencies [Line Items]
Future non-cancelable minimum payments	$ 466

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Details) $ in Millions	6 Months Ended
	Jul. 31, 2020USD ($)voteshares
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of vesting	4 years
Unrecognized compensation cost, other than options | $	$ 2,200
Unrecognized compensation cost recognized over weighted-average period	3 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of vesting	5 years
Period of which options become exercisable	10 years
Unrecognized compensation cost, options | $	$ 19
Weighted average remaining contractual term (years)	1 year
Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, outstanding (in shares)	177,000,000
Common stock, votes per share | vote	1
Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, outstanding (in shares)	60,000,000
Common stock, votes per share | vote	10
2012 Equity Incentive Plan | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for future grants (in shares)	63,000,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair market value of stock at which employees are granted shares	85.00%
Employee Stock Purchase Plan | Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for future grants (in shares)	5,000,000

Stockholders' Equity - Restrict

Stockholders' Equity - Restricted Stock Units Activity (Details) - Restricted Stock Units	6 Months Ended
	Jul. 31, 2020$ / sharesshares
Restricted Stock Units
Beginning Balance (in shares) | shares	11,914,064
RSUs granted (in shares) | shares	7,609,940
RSUs vested (in shares) | shares	(3,264,103)
RSUs forfeited (in shares) | shares	(565,835)
Ending Balance (in shares) | shares	15,694,066
Weighted-Average Grant Date Fair Value
Beginning Balance (in dollars per share) | $ / shares	$ 147.96
RSUs granted (in dollars per share) | $ / shares	148.12
RSUs vested (in dollars per share) | $ / shares	139.82
RSUs forfeited (in dollars per share) | $ / shares	145.37
Ending Balance (in dollars per share) | $ / shares	$ 149.82

Stockholders' Equity - PRSU's (

Stockholders' Equity - PRSU's (Details) - All Other Employees - Performance Based Restricted Stock Unit PRSU - USD ($) shares in Millions, $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Jul. 31, 2020	Jul. 31, 2020	Jan. 31, 2020
Vesting March 15 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)			0.6
Compensation related cost		$ 19
Vesting March 15 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units granted (in shares)	0.6
Compensation related cost	$ 19	19
Unrecognized compensation cost, other than options	$ 90	$ 90
Unrecognized compensation cost recognized over weighted-average period		7 months

Stockholders' Equity - Stock Op

Stockholders' Equity - Stock Options (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
	Jul. 31, 2020	Jan. 31, 2020
Outstanding Stock Options
Beginning Balance (in shares)	3,435,577
Stock options exercised (in shares)	(1,155,404)
Stock options canceled (in shares)	(18,719)
Ending Balance (in shares)	2,261,454
Vested and expected to vest (in shares)	2,251,777
Exercisable (in shares)	2,030,205
Weighted-Average Exercise Price
Beginning Balance (in dollars per share)	$ 9.78
Stock options exercised (in dollars per share)	6.19
Stock options canceled (in dollars per share)	42.92
Ending Balance (in dollars per share)	11.34
Vested and expected to vest, Weighted-Average Exercise Price (in dollars per share)	11.23
Exercisable, Weighted-Average Exercise Price (in dollars per share)	$ 8.91
Aggregate Intrinsic Value	$ 383	$ 601
Vested and expected to vest as of July 31, 2020	382
Exercisable as of July 31, 2020	$ 349

Unearned Revenue and Performa_2

Unearned Revenue and Performance Obligations - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Revenue from Contract with Customer [Abstract]
Subscription revenue recognized that was included in total unearned revenue balance at beginning of period	$ 824	$ 677	$ 1,460	$ 1,180

Unearned Revenue and Performa_3

Unearned Revenue and Performance Obligations - Transaction Price Allocated to the Remaining Performance Obligations (Details) - Subscription services $ in Millions	Jul. 31, 2020USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue is expected to be recognized from remaining performance obligations for subscription contracts	$ 8,600
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-08-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue is expected to be recognized from remaining performance obligations for subscription contracts	$ 5,780
Recognition period	24 months

Other Income (Expense), Net (De

Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Other Income and Expenses [Abstract]
Interest income	$ 4,978	$ 11,239	$ 12,845	$ 21,589
Interest expense	(19,302)	(14,473)	(36,841)	(26,074)
Other	2,871	3,128	1,570	11,520
Other income (expense), net	$ (11,453)	$ (106)	$ (22,426)	$ 7,035

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Income Tax Disclosure [Abstract]
Provision for (benefit from) income taxes	$ 191	$ 1,891	$ (2,747)	$ 1,861

Net Loss Per Share - Summary of

Net Loss Per Share - Summary of Calculation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Denominator:
Weighted-average common shares outstanding (in shares)	236,002	226,392	234,483	224,857
Basic and diluted net loss per share (in dollars per share)	$ (0.12)	$ (0.53)	$ (0.79)	$ (1.05)
Class A
Numerator:
Allocation of distributed net loss	$ (20,732)	$ (86,481)	$ (137,980)	$ (169,067)
Denominator:
Weighted-average common shares outstanding (in shares)	175,441	162,193	173,590	160,414
Basic and diluted net loss per share (in dollars per share)	$ (0.12)	$ (0.53)	$ (0.79)	$ (1.05)
Class B
Numerator:
Allocation of distributed net loss	$ (7,284)	$ (34,231)	$ (48,404)	$ (67,920)
Denominator:
Weighted-average common shares outstanding (in shares)	60,561	64,199	60,893	64,443
Basic and diluted net loss per share (in dollars per share)	$ (0.12)	$ (0.53)	$ (0.79)	$ (1.05)

Net Loss Per Share - Summary _2

Net Loss Per Share - Summary of Diluted Net Loss Per Common Share (Details) - shares shares in Thousands	6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (in shares)	37,744	40,946
Outstanding common stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (in shares)	2,261	4,512
Unvested RSUs and PRSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (in shares)	16,326	14,288
Shares related to the convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (in shares)	7,818	10,876
Shares subject to warrants related to the issuance of convertible senior notes
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (in shares)	10,876	10,876
Shares issuable pursuant to the ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (in shares)	463	394

Geographic Information - Summar

Geographic Information - Summary of Revenues by Geographic Area (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020USD ($)market	Jul. 31, 2019USD ($)	Jul. 31, 2020USD ($)market	Jul. 31, 2019USD ($)
Disaggregation of Revenue [Line Items]
Number of primary geographical markets | market	2		2
Revenue	$ 1,061,967	$ 887,752	$ 2,080,352	$ 1,712,807
United States
Disaggregation of Revenue [Line Items]
Revenue	805,056	676,568	1,567,396	1,305,097
Other countries
Disaggregation of Revenue [Line Items]
Revenue	$ 256,911	$ 211,184	$ 512,956	$ 407,710

Geographic Information - Long-L

Geographic Information - Long-Lived Assets (Details) - USD ($) $ in Thousands	Jul. 31, 2020	Jan. 31, 2020
Long-Lived Assets [Line Items]
Long-lived assets	$ 1,282,089	$ 1,227,081
United States
Long-Lived Assets [Line Items]
Long-lived assets	1,084,136	1,064,292
Ireland
Long-Lived Assets [Line Items]
Long-lived assets	126,021	122,619
Other countries
Long-Lived Assets [Line Items]
Long-lived assets	$ 71,932	$ 40,170

Uncategorized Items - wday-2020

Label	Element	Value
Prepaid Expenses and Other Current Assets [Member]
Restricted Cash	us-gaap_RestrictedCash	$ 5,002,000
Restricted Cash	us-gaap_RestrictedCash	6,421,000
Other Assets [Member]
Restricted Cash	us-gaap_RestrictedCash	130,000
Restricted Cash	us-gaap_RestrictedCash	$ 129,000