New Relic (NEWR) 10-Q 5 Feb 20 2020 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Dec. 31, 2019	Jan. 29, 2020
Entity Addresses [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-36766
Entity Registrant Name	New Relic, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-2017431
Entity Address, Address Line One	188 Spear Street
Entity Address, Address Line Two	Suite 1000
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94105
City Area Code	650
Local Phone Number	777-7600
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	NEWR
Security Exchange Name	NYSE
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 Common Stock, Shares Outstanding		59,252,981
Entity Central Index Key	0001448056
Current Fiscal Year End Date	--03-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Former Address
Entity Addresses [Line Items]
Entity Address, Address Line One	188 Spear Street
Entity Address, Address Line Two	Suite 1200
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94105

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Current assets:
Cash and cash equivalents	$ 178,997	$ 234,356
Short-term investments	557,662	510,372
Accounts receivable, net of allowance for doubtful accounts of $2,025 and $2,457, respectively	110,590	120,605
Prepaid expenses and other current assets	18,872	21,838
Deferred contract acquisition costs	29,799	27,161
Total current assets	895,920	914,332
Property and equipment, net	105,040	80,742
Restricted cash	5,639	8,805
Goodwill	45,112	41,512
Intangible assets, net	14,059	13,855
Deferred contract acquisition costs, non-current	25,315	26,218
Lease right-of-use assets	59,838
Other assets, non-current	7,270	4,763
Total assets	1,158,193	1,090,227
Current liabilities:
Accounts payable	15,582	10,249
Accrued compensation and benefits	25,550	23,537
Other current liabilities	12,508	14,572
Deferred revenue	236,897	267,000
Lease liabilities	8,789
Total current liabilities	299,326	315,358
Convertible senior notes, net	421,655	405,937
Lease liabilities, non-current	59,849
Deferred rent, non-current	0	11,025
Deferred revenue, non-current	110	4,597
Other liabilities, non-current	1,460	947
Total liabilities	782,400	737,864
Commitments and contingencies (Note 10)
Redeemable non-controlling interest	2,274	2,733
Stockholders’ equity:
Common stock, $0.001 par value; 100,000 shares authorized at December 31, 2019 and March 31, 2019; 59,400 shares and 58,366 shares issued at December 31, 2019 and March 31, 2019; and 59,140 shares and 58,106 shares outstanding at December 31, 2019 and March 31, 2019	59	58
Treasury stock - at cost (260 shares)	(263)	(263)
Additional paid-in capital	738,363	654,759
Accumulated other comprehensive income	1,907	645
Accumulated deficit	(366,547)	(305,569)
Total stockholders’ equity	373,519	349,630
Total liabilities, redeemable non-controlling interest and stockholders’ equity	$ 1,158,193	$ 1,090,227

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 2,025	$ 2,457
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	59,400,000	58,366,000
Common stock, shares outstanding (in shares)	59,140,000	58,106,000
Treasury stock, shares (in shares)	260,000	260,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Revenue	$ 153,028	$ 124,011	$ 439,853	$ 347,128
Cost of revenue	26,402	20,206	75,164	55,703
Gross profit	126,626	103,805	364,689	291,425
Operating expenses:
Research and development	38,387	26,182	106,858	72,747
Sales and marketing	87,704	66,461	244,711	185,091
General and administrative	24,751	19,702	71,129	51,293
Total operating expenses	150,842	112,345	422,698	309,131
Loss from operations	(24,216)	(8,540)	(58,009)	(17,706)
Other income (expense):
Interest income	3,793	3,922	11,944	9,026
Interest expense	(5,953)	(5,669)	(17,660)	(13,932)
Other income (expense), net	(465)	(8)	2,828	(1,285)
Loss before income taxes	(26,841)	(10,295)	(60,897)	(23,897)
Income tax provision (benefit)	894	(106)	1,518	440
Net loss	(27,735)	(10,189)	(62,415)	(24,337)
Net loss attributable to redeemable non-controlling interest	540	86	1,437	283
Net loss attributable to New Relic	$ (27,195)	$ (10,103)	$ (60,978)	$ (24,054)
Net loss attributable to New relic per share, basic and diluted (in usd per share)	$ (0.46)	$ (0.18)	$ (1.05)	$ (0.42)
Weighted-average shares used to compute net loss per share, basic and diluted (in shares)	58,733	57,096	58,352	56,663

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net loss attributable to New Relic	$ (27,195)	$ (10,103)	$ (60,978)	$ (24,054)
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net of tax	(48)	612	1,262	363
Comprehensive loss	$ (27,243)	$ (9,491)	$ (59,716)	$ (23,691)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect adjustment for ASU 2014-09 adoption	$ 40,813					$ 40,813
Beginning balance (in shares) at Mar. 31, 2018		56,213		260
Beginning balance at Mar. 31, 2018	215,104	$ 56	$ 521,119	$ (263)	$ (324)	(305,484)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of capped calls	(63,200)
Ending balance (in shares) at Sep. 30, 2018		57,199		260
Ending balance at Sep. 30, 2018	317,847	$ 57	597,248	$ (263)	(573)	(278,622)
Beginning balance (in shares) at Mar. 31, 2018		56,213		260
Beginning balance at Mar. 31, 2018	215,104	$ 56	521,119	$ (263)	(324)	(305,484)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		552
Issuance of common stock upon exercise of stock options	11,536	$ 1	11,535
Issuance of common stock for vested restricted stock units (in shares)		688
Issuance of common stock related to employee stock purchase plan (in shares)		83
Issuance of common stock related to employee stock purchase plan	4,887		4,887
Stock-based compensation expense	40,179		40,179
Other comprehensive income (loss), net	363				363
Net loss attributable to New Relic	(24,054)					(24,054)
Equity component of convertible senior notes, net of issuance costs	100,136		100,136
Purchase of capped calls	(63,182)		(63,182)
Ending balance (in shares) at Dec. 31, 2018		57,536		260
Ending balance at Dec. 31, 2018	325,782	$ 57	614,674	$ (263)	39	(288,725)
Beginning balance (in shares) at Sep. 30, 2018		57,199		260
Beginning balance at Sep. 30, 2018	317,847	$ 57	597,248	$ (263)	(573)	(278,622)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		97
Issuance of common stock upon exercise of stock options	2,519		2,519
Issuance of common stock for vested restricted stock units (in shares)		240
Stock-based compensation expense	14,907		14,907
Other comprehensive income (loss), net	612				612
Net loss attributable to New Relic	(10,103)					(10,103)
Ending balance (in shares) at Dec. 31, 2018		57,536		260
Ending balance at Dec. 31, 2018	325,782	$ 57	614,674	$ (263)	39	(288,725)
Beginning balance (in shares) at Mar. 31, 2019		58,366		260
Beginning balance at Mar. 31, 2019	$ 349,630	$ 58	654,759	$ (263)	645	(305,569)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	267	267
Issuance of common stock upon exercise of stock options	$ 6,773		6,773
Issuance of common stock for vested restricted stock units (in shares)		650
Issuance of common stock for vested restricted stock units		$ 1	(1)
Issuance of common stock related to employee stock purchase plan (in shares)		117
Issuance of common stock related to employee stock purchase plan	5,933		5,933
Stock-based compensation expense	70,899		70,899
Other comprehensive income (loss), net	1,262				1,262
Net loss attributable to New Relic	(60,978)					(60,978)
Ending balance (in shares) at Dec. 31, 2019		59,400		260
Ending balance at Dec. 31, 2019	373,519	$ 59	738,363	$ (263)	1,907	(366,547)
Beginning balance (in shares) at Sep. 30, 2019		59,036		260
Beginning balance at Sep. 30, 2019	371,160	$ 59	708,761	$ (263)	1,955	(339,352)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)		146
Issuance of common stock upon exercise of stock options	3,719		3,719
Issuance of common stock for vested restricted stock units (in shares)		218
Stock-based compensation expense	25,883		25,883
Other comprehensive income (loss), net	(48)				(48)
Net loss attributable to New Relic	(27,195)					(27,195)
Ending balance (in shares) at Dec. 31, 2019		59,400		260
Ending balance at Dec. 31, 2019	$ 373,519	$ 59	$ 738,363	$ (263)	$ 1,907	$ (366,547)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net loss attributable to New Relic	$ (60,978)	$ (24,054)
Net loss attributable to redeemable non-controlling interest (Note 3)	(1,437)	(283)
Net loss:	(62,415)	(24,337)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	56,237	38,585
Stock-based compensation expense	70,496	39,624
Amortization of debt discount and issuance costs	15,718	12,313
Gain on lease modification	(3,006)
Other	(2,919)	(800)
Changes in operating assets and liabilities, net of acquisition of business:
Accounts receivable, net	10,015	(3,411)
Prepaid expenses and other assets	(204)	3,262
Deferred contract acquisition costs	(25,786)	(27,689)
Lease right-of-use assets	19,539
Accounts payable	4,257	3,850
Accrued compensation and benefits and other liabilities	1,136	7,771
Lease liabilities	(16,812)
Deferred revenue	(34,590)	16,827
Deferred rent	0	899
Net cash provided by operating activities	31,666	66,894
Cash flows from investing activities:
Purchases of property and equipment	(49,705)	(29,715)
Cash paid for acquisitions, net of cash acquired (Note 2)	(4,250)	(5,556)
Purchases of short-term investments	(337,070)	(581,504)
Proceeds from sale and maturity of short-term investments	292,409	161,237
Capitalized software development costs	(4,463)	(3,810)
Net cash used in investing activities	(103,079)	(459,348)
Cash flows from financing activities:
Investment from redeemable non-controlling interest	978	3,596
Proceeds from issuance of convertible senior notes, net of issuance costs paid of $11,582	0	488,669
Purchase of capped call related to convertible senior notes	0	(63,182)
Proceeds from employee stock purchase plan	5,933	4,887
Proceeds from exercise of employee stock options	5,977	11,519
Net cash provided by financing activities	12,888	445,489
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect, Total	(58,525)	53,035
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Beginning Balance	243,161	140,681
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance	184,636	193,716
Supplemental disclosure of cash flow information:
Cash paid for interest and income taxes	3,868	683
Noncash investing and financing activities:
Property and equipment purchased but not yet paid	7,797	5,758
Acquisition holdback	$ 850	$ 865

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of Cash Flows [Abstract]
Payments of debt issuance costs	$ 0	$ 11,582

Description of Business and Sum

Description of Business and Summary of Significant Accounting Policies	9 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Description of Business and Summary of Significant Accounting Policies	Description of Business and Summary of Significant Accounting Policies Description of Business —New Relic, Inc. (the “Company” or “New Relic”) was incorporated in Delaware on February 20, 2008, when it converted from a Delaware limited liability company called New Relic Software, LLC, which was formed in Delaware in September 2007. The Company is a provider of an integrated, multi-tenant, cloud-based observability and analytics platform that enables users to collect, store and analyze massive amounts of data in real time. Basis of Presentation —These unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2019, as filed with the SEC on May 15, 2019 (the “Annual Report”). In the opinion of management, the unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, comprehensive loss, stockholders’ equity and cash flows for the interim period, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year ending March 31, 2020. The condensed consolidated balance sheet as of March 31, 2019 included herein was derived from the audited financial statements as of that date. Use of Estimates —The preparation of the Company’s condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of income and expenses during the reporting period. Significant items subject to such estimates and assumptions include the fair value of share-based awards, fair value of purchased intangible assets and goodwill, fair value of debt and equity components related to the 0.5% convertible senior notes due 2023 (the “Notes”), whether an arrangement is or contains a lease, the discount rate used for operating leases, useful lives of purchased intangible assets, unrecognized tax benefits, expected benefit period for deferred commissions and the capitalization and estimated useful life of the Company’s software development costs. These estimates are based on information available as of the date of the condensed consolidated financial statements; therefore, actual results could differ from management’s estimates. Concentration of Risk —There was no customer that represented more than 10% of the Company’s accounts receivable balance as of December 31, 2019 or March 31, 2019. There was no customer that individually exceeded 10% of the Company’s revenue during the three or nine months ended December 31, 2019 or 2018. Summary of Significant Accounting Policies —Except for the accounting policies for operating leases that were updated as a result of adopting Accounting Standards Update (ASU) 2016-02, Leases , regarding Accounting Standards Codification Topic 842 (“ASC 842”), there have been no changes to our significant accounting policies described in our Annual Report on Form 10-K for the fiscal year ended March 31, 2019, filed with the SEC on May 15, 2019. See Note 9—Leases for a summary of the Company’s new accounting policies under ASC 842. Recently Issued Accounting Pronouncements Not Yet Adopted In June 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which amends guidance on reporting credit losses for assets held at amortized cost basis and available-for-sale debt securities. The updated guidance requires that credit losses on available-for-sale debt securities be presented as an allowance rather than as a write-down. The measurement of credit losses for newly recognized financial assets and subsequent changes in the allowance for credit losses are recorded in the statement of income. The update to the standard will be effective for the Company in the fiscal year beginning April 1, 2020. The Company has not yet adopted ASU 2016-13 and is currently evaluating the effect the standard will have on its condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment , which eliminates Step 2 from the goodwill impairment test. This standard is effective for goodwill impairment tests performed by the Company in the fiscal year beginning April 1, 2020. The Company has not yet adopted ASU 2017-04 and does not believe that this standard will have a material impact on its condensed consolidated financial statements or disclosures. In August 2018, the FASB issued ASU 2018-13, Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement , which amends ASC 820, Fair Value Measurement. ASU 2018-13 modifies the disclosure requirements for fair value measurements by removing, modifying, or adding certain disclosures. The update to the standard will be effective for the Company in the fiscal year beginning April 1, 2020. The removed and modified disclosures will be adopted on a retrospective basis and the new disclosures will be adopted on a prospective basis. The Company has not yet adopted ASU 2018-13 and is currently evaluating the effect the standard will have on its condensed consolidated financial statements. Recently Adopted Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) which superseded previous guidance related to accounting for leases . This new guidance requires lessees to recognize most leases on their balance sheets as lease right-of-use assets with corresponding lease liabilities and eliminates certain real estate-specific provisions. In July 2018, the FASB also issued ASU No. 2018-11, Leases (Topic 842). The ASU provides an optional transition method that entities can use when adopting the standard and a practical expedient that permits lessors to not separate nonlease components from the associated lease component if certain conditions are met. The new guidance is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period. The Company adopted ASC 842 on April 1, 2019 using a modified retrospective method, under which financial results reported in periods prior to April 1, 2019 were not adjusted. The Company elected the package of transition practical expedients, which among other things, does not require reassessment of historical lease classifications of leases in place as of April 1, 2019. The effect of adopting ASC 842 resulted in the recognition of lease right-of-use assets and corresponding lease liabilities on the Company’s condensed consolidated balance sheet. As of June 30, 2019, the first quarter of adoption, the aggregate balance of lease right-of-use assets and lease liabilities was $64.2 million and $71.6 million, respectively. The standard did not affect the Company’s condensed consolidated statement of operations or cash flows. In June 2018, the FASB issued ASU 2018-07, regarding Compensation—Stock Compensation (Topic 718) , which largely aligns the accounting for share-based compensation for non-employees with employees. The guidance is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period. The Company adopted this standard on April 1, 2019. The adoption did not have a significant impact on its condensed consolidated financial statements. In August 2018, the FASB issued ASU 2018-15, regarding Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40) , 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 guidance is effective for annual reporting periods beginning after December 15, 2019, including interim periods within that reporting period. The Company adopted the standard on April 1, 2019. The adoption did not have a significant impact on its condensed consolidated financial statements.

Business Combinations

Business Combinations	9 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Business Combinations	Business Combinations IOpipe, Inc. On October 31, 2019, the Company acquired certain assets of IOpipe, Inc., a company that provides monitoring tools for serverless applications, for $5.1 million in cash. The Company held back approximately $0.9 million from the aggregate purchase price which has been accrued as a liability. Of the total purchase price, $1.5 million was allocated to acquired technology with an estimated useful life of three years with the excess $3.6 million of the purchase price over the fair value of the intangible assets acquired recorded as goodwill. The acquisition has been accounted for as a business combination under the acquisition method. Goodwill and other intangibles generated from the acquisition are attributable to expected synergies from future growth and potential future monetization opportunities, and are deductible for tax purposes. The business combination did not have a material impact on the condensed consolidated financial statements and therefore historical and proforma disclosures have not been presented. SignifAI, Inc. On January 25, 2019, the Company acquired all outstanding stock of SignifAI, Inc. (“SignifAI”), an event intelligence company specializing in artificial intelligence and machine learning. The aggregate purchase price of $36.3 million consisted of $25.1 million in cash and 143,861 shares of Company common stock with an aggregate fair value of approximately $11.9 million. The fair value of the consideration transferred was determined based on an $82.69 per share price of the Company’s common stock. The total purchase price was allocated to the developed technology acquired, net liabilities assumed, deferred taxes related to net operating loss carryforwards and a deferred tax liability related to the developed technology. The excess purchase price was recorded as goodwill, as set forth below. The acquisition has been accounted for as a business combination. The business combination did not have a material impact on the condensed consolidated financial statements and therefore historical and proforma disclosures have not been presented. Per the terms of the merger agreement, all share-based payment awards were accelerated and paid for in cash. The cash consideration paid for unvested share-based payment awards of $0.8 million was recognized as compensation expense separate from the business combination. The acquisition also included a holdback arrangement with certain employees of SignifAI, totaling approximately 152,840 shares of the Company’s common stock, contingent upon such employees’ continued employment with the Company. The fair value of these awards, which are subject to the recipients’ continued service, was $12.6 million and was excluded from the aggregate purchase price. These awards will be recognized as stock-based compensation expense over the remaining vesting period which ranges from 24 months to 36 months from the closing date of the acquisition. The following table presents the purchase price allocation related to the acquisition (in thousands): Cash consideration paid $ 25,119 Fair value of common shares issued $ 24,535 Total consideration $ 49,654 Post-business combination compensation expense $ (12,639) Cash paid to settle unvested stock options $ (764) Total purchase price $ 36,251 Net liabilities assumed $ 259 Deferred tax liabilities $ 2,289 Deferred tax assets $ (1,721) Developed technology acquired $ (10,900) Goodwill $ 26,178 CoScale NV On October 9, 2018, the Company acquired certain assets of CoScale NV (“CoScale”), a public limited liability company organized and existing under the laws of Belgium that provides solutions for monitoring the performance of software container environments for $6.3 million in cash. The Company held back approximately $0.9 million from the aggregate purchase price. Of the total purchase price, $2.9 million was allocated to acquired technology with an estimated useful life of three years, with the excess $3.4 million of the purchase price over the fair value of intangible assets acquired recorded as goodwill. The acquisition has been accounted for as a business combination under the acquisition method. Goodwill and other intangibles generated from the acquisition are attributable to expected synergies from future growth and potential future monetization opportunities, and are deductible for tax purposes. The business combination did not have a material impact on the Company's condensed consolidated financial statements and therefore historical and proforma disclosures have not been presented.

Joint Venture

Joint Venture	9 Months Ended
	Dec. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Joint Venture	Joint Venture On July 13, 2018, the Company entered into an agreement with Japan Cloud Computing L.P. (“JCC”) and M30 LLC (collectively, the Investors) to engage in the investment, organization, management and operation of New Relic K.K., a Japanese subsidiary of the Company that is focused on the sale of the Company’s products and services in Japan. On August 21, 2018, the Investors initially contributed approximately $3.6 million ($396,000,000 Japanese Yen) in exchange for 40% of the outstanding common stock of New Relic K.K. On August 21, 2019, the Company and Investors additionally contributed approximately $1.5 million (156,000,000 Japanese Yen) and approximately $1.0 million (104,000,000 Japanese Yen), respectively, to subscribe to additional shares. As of December 31, 2019, the Company owned approximately 60% of the outstanding common stock in New Relic K.K. All of the common stock held by the Investors may be callable by the Company or puttable by the Investors upon certain contingent events. Should the call or put option be exercised, the redemption value would be determined based on a prescribed formula derived from the discrete revenues of New Relic K.K. and the Company and may be settled, at the Company’s discretion, with Company stock or cash. As a result of the put right available to the redeemable non-controlling interest holders in the future, the redeemable non-controlling interest in New Relic K.K. is classified outside of permanent equity in the Company’s consolidated balance sheet as of December 31, 2019, and the balance is reported at the greater of the initial carrying amount adjusted for the redeemable non-controlling interest’s share of earnings or losses, or its estimated redemption value. The resulting changes in the estimated redemption amount are recorded within retained earnings or, in the absence of retained earnings, additional paid-in-capital. The estimated redemption value of the call/put option embedded in the redeemable non-controlling interest was $0 at December 31, 2019. The following table summarizes the activity in the redeemable non-controlling interest for the period indicated below: Balance as of March 31, 2019 $ 2,733 Investment by redeemable non-controlling interest 978 Net loss attributable to redeemable non-controlling interest (1,437) Balance as of December 31, 2019 $ 2,274

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The following tables present information about the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2019 and March 31, 2019 based on the three-tier fair value hierarchy (in thousands): Fair Value Measurements as of December 31, 2019 Level 1 Level 2 Level 3 Total Cash and cash equivalents: Money market funds $ 101,431 $ — $ — $ 101,431 Commercial paper — 5,647 — 5,647 Short-term investments: Certificates of deposit — 30,066 — 30,066 Commercial paper — 13,224 — 13,224 Corporate notes and bonds — 48,421 — 48,421 U.S. treasury securities 456,340 — — 456,340 U.S. government agencies — 9,611 — 9,611 Restricted cash: Money market funds 5,639 — — 5,639 Total $ 563,410 $ 106,969 $ — $ 670,379 Included in cash and cash equivalents $ 107,078 Included in short-term investments $ 557,662 Included in restricted cash $ 5,639 Fair Value Measurements as of March 31, 2019 Level 1 Level 2 Level 3 Total Cash and cash equivalents: Money market funds $ 133,239 $ — $ — $ 133,239 Commercial paper — 9,973 — 9,973 Short-term investments: Certificates of deposit — 24,726 — 24,726 Commercial paper — 37,071 — 37,071 Corporate notes and bonds — 27,259 — 27,259 U.S. treasury securities 402,091 — — 402,091 U.S. government agencies — 19,225 — 19,225 Restricted cash: Money market funds 8,805 — — 8,805 Total $ 544,135 $ 118,254 $ — $ 662,389 Included in cash and cash equivalents $ 143,212 Included in short-term investments $ 510,372 Included in restricted cash $ 8,805 There were no transfers between fair value measurement levels during the nine months ended December 31, 2019 and 2018. Gross unrealized gains or losses for cash equivalents and short-term investments as of December 31, 2019 and March 31, 2019 were not significant. As of December 31, 2019 and March 31, 2019, there were no securities that were in an unrealized loss position for more than 12 months. The following table classifies the Company’s available-for-sale short-term investments by contractual maturities as of December 31, 2019 and March 31, 2019 (in thousands): December 31, 2019 March 31, 2019 Due within one year $ 316,984 $ 346,768 Due after one year and within three years 240,678 163,604 Total $ 557,662 $ 510,372 For certain other financial instruments, including accounts receivable, accounts payable and other current liabilities, the carrying amounts approximate their fair value due to the relatively short maturity of these balances. Convertible Senior Notes As of December 31, 2019, the fair value of the 0.50% convertible senior notes due 2023 (the “Notes”) was $442.8 million. The fair value was determined based on the quoted price of the Notes in an inactive market on the last trading day of the reporting period and has been classified as Level 2 in the fair value hierarchy.

Contract Acquisition Costs

Contract Acquisition Costs	9 Months Ended
	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Contract Acquisition Costs	Contract Acquisition CostsThe Company capitalizes certain contract acquisition costs primarily consisting of commissions. The balances of deferred costs to obtain customer contracts were $55.1 million and $53.4 million as of December 31, 2019 and March 31, 2019, respectively. In the three months ended December 31, 2019 and 2018, amortization from amounts capitalized was $8.3 million and $6.7 million, respectively. In the nine months ended December 31, 2019 and 2018 amortization from amounts capitalized was $24.0 million and $18.5 million, respectively. In the three months ended December 31, 2019 and 2018 amounts expensed as incurred were $3.6 million and $2.3 million, respectively. In the nine months ended December 31, 2019 and 2018 amounts expensed as incurred were $8.2 million and $5.5 million, respectively. The Company had no impairment loss in relation to costs capitalized.Deferred Revenue and Performance Obligations During the three months ended December 31, 2019 and 2018, $118.7 million and $90.5 million of revenue was recognized that was included in the deferred revenue balances at the beginning of each period, respectively, and $242.2 million and $169.3 million during the nine months ended December 31, 2019 and 2018, respectively. The aggregate unrecognized transaction price of remaining performance obligations as of December 31, 2019 was $489.2 million. The Company expects to recognize more than 94% of the balance as revenue in the 24 months following December 31, 2019 and the remainder thereafter. The aggregate balance of remaining performance obligations represents contracted revenue that has not yet been recognized and does not include contract amounts which are cancelable by the customer and amounts associated with optional renewal periods.

Property and Equipment

Property and Equipment	9 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment Property and equipment, net, consisted of the following (in thousands): December 31, 2019 March 31, 2019 Computers, software, and equipment $ 12,945 $ 11,245 Site operation equipment 102,995 66,727 Furniture and fixtures 4,659 3,990 Leasehold improvements 37,839 40,541 Capitalized software development costs 47,815 43,063 Total property and equipment 206,253 165,566 Less: accumulated depreciation and amortization (101,213) (84,824) Total property and equipment, net $ 105,040 $ 80,742 Depreciation and amortization expense related to property and equipment was $10.2 million and $6.5 million for the three months ended December 31, 2019 and 2018, respectively, and $30.8 million and $18.7 million for the nine months ended December 31, 2019 and 2018, respectively.

0.5% Convertible Senior Notes a

0.5% Convertible Senior Notes and Capped Call	9 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Convertible Senior Notes and Capped Call	0.5% Convertible Senior Notes and Capped CallIn May 2018, the Company issued $500.25 million in aggregate principal amount of Notes in a private offering, including an additional $65.25 million aggregate principal amount of such Notes pursuant to the exercise in full of the initial purchasers’ over-allotment option. The Notes are the Company’s senior unsecured obligations and bear interest at a fixed rate of 0.5% per annum, payable semi-annually in arrears on May 1 and November 1 of each year, commencing on November 1, 2018. The Notes will mature on May 1, 2023, unless earlier converted or repurchased. Each $1,000 principal amount of the Notes will initially be convertible into 9.02 shares of the Company’s common stock (the “Conversion Option”), which is equivalent to an initial conversion price of approximately $110.81 per share. The Notes will be convertible at the option of the holders at any time prior to the close of business on the business day immediately preceding November 1, 2022, only under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ending on September 30, 2018 (and only during such fiscal quarter), if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding fiscal quarter is greater than or equal to 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price (as defined in the indenture governing the Notes) per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the last reported sale price of our common stock and the conversion rate for the Notes on each such trading day; or (3) upon the occurrence of specified corporate events as set forth in the indenture governing the Notes. On or after November 1, 2022 until the close of business on the second scheduled trading day immediately preceding the maturity date, holders may convert all or any portion of their Notes, in multiples of $1,000 principal amount, at the option of the holder regardless of the foregoing circumstances. Upon conversion, the Company may satisfy its conversion obligation by paying and/or delivering, as the case may be, cash, shares of the Company’s common stock or a combination of cash and shares of the Company’s common stock, at the Company’s election, in the manner and subject to the terms and conditions provided in the indenture governing the Notes. The conversion rate is subject to adjustment under certain circumstances in accordance with the terms of the indenture governing the Notes. In addition, following certain corporate events that occur prior to the maturity date, the Company will increase the conversion rate, in certain circumstances, for a holder who elects to convert its Notes in connection with such a corporate event. During the three and nine months ended December 31, 2019, the conditions allowing holders of the Notes to convert had not been met. The Notes were therefore not convertible during the three and nine months ended December 31, 2019 and were classified as long-term debt for such period. In accounting for the transaction, the Notes were separated into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of a similar debt instrument that does not have an associated conversion feature. The carrying amount of the equity component representing the Conversion Option was $102.5 million and was determined by deducting the fair value of the liability component from the proceeds received upon issuance of the Notes. The equity component was recorded in additional paid-in capital and is not remeasured as long as it continues to meet the conditions for equity classification. The excess of the principal amount of the Notes over the liability component (the “Debt Discount”) and the debt issuance costs are amortized to interest expense over the contractual term of the Notes at an effective interest rate of 5.74%. This rate is inclusive of the issuance costs. In accounting for the debt issuance costs of $11.6 million related to the Notes, the Company allocated the total amount incurred to the liability and equity components using the same proportions as the proceeds of the Notes. Issuance costs attributable to the liability component were $9.2 million and will be amortized to interest expense using the effective interest method over the contractual term of the Notes. Issuance costs attributable to the equity component were $2.4 million and netted with the equity component in additional paid-in capital. The net carrying amount of the liability component of the Notes was as follows (in thousands): December 31, 2019 March 31, 2019 Principal $ 500,250 $ 500,250 Unamortized debt discount (71,859) (86,374) Unamortized issuance costs (6,736) (7,939) Net carrying amount $ 421,655 $ 405,937 Interest expense related to the Notes was as follows (in thousands): Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 Amortization of debt discount $ 4,901 $ 4,654 $ 14,515 $ 11,421 Amortization of issuance costs 413 367 1,203 891 Contractual interest expense 625 625 1,876 1,549 Total interest expense $ 5,939 $ 5,646 $ 17,594 $ 13,861

Goodwill and Purchased Intangib

Goodwill and Purchased Intangibles Assets	9 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Purchased Intangibles Assets	Goodwill and Purchased Intangibles Assets The changes in the carrying amount of goodwill for the nine months ended December 31, 2019 consist of the following (in thousands): Goodwill as of March 31, 2019 $ 41,512 Goodwill acquired 3,600 Goodwill as of December 31, 2019 $ 45,112 Purchased intangible assets subject to amortization as of December 31, 2019 consisted of the following (in thousands): Gross Carrying Accumulated Net Carrying Developed technology $ 15,316 $ (1,257) $ 14,059 Purchased intangible assets subject to amortization as of March 31, 2019 consisted of the following (in thousands): Gross Carrying Accumulated Net Carrying Developed technology $ 18,716 $ (4,861) $ 13,855 Amortization expense of purchased intangible assets was $0.4 million and $0.4 million for the three months ended December 31, 2019 and 2018, respectively, and $1.3 million and $0.8 million for the nine months ended December 31, 2019 and 2018, respectively. Estimated future amortization expense as of December 31, 2019 was as follows (in thousands): Fiscal Years Ending March 31, Estimated Future Amortization Expense 2020 (remaining three months) $ 368 2021 5,105 2022 4,619 2023 3,967 $ 14,059

Leases

Leases	9 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases	Leases The Company leases office space under non-cancelable operating leases, which expire from 2020 to 2028. All of its office leases are classified as operating leases with lease expense recognized on a straight-line basis over the lease term. Lease right-of-use assets and liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. As these leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. The Company considers information including, but not limited to, the lease term, the Company's credit rating and interest rates of similar debt instruments with comparable credit ratings. The lease right-of-use assets are also increased by any lease prepayments made and reduced by any lease incentives such as tenant improvement allowances. Options to extend the lease term are included in the lease term when it is reasonably certain that the Company will exercise the extension option. The Company’s operating leases typically include nonlease components such as common-area maintenance costs. The Company has elected to include nonlease components with lease payments for the purpose of calculating lease right-of-use assets and liabilities, to the extent that they are fixed. Nonlease components that are not fixed are expensed as incurred as variable lease payments. Leases with a term of one year or less are not recognized on the Company’s condensed consolidated balance sheet. The following table presents information about leases on the condensed consolidated balance sheet (in thousands): December 31, 2019 Assets Lease right-of-use-assets $ 59,838 Liabilities Lease liabilities $ 8,789 Lease liabilities, non-current 59,849 Total operating lease liabilities $ 68,638 As of December 31, 2019, the weighted average remaining lease term was 7.0 years and the weighted average discount rate was 6.7%. The following table presents information about leases on its condensed consolidated statement of operations (in thousands): Three Months Ended December 31, 2019 Nine Months Ended December 31, 2019 Operating lease expense $ 3,270 $ 10,940 Short-term lease expense 272 804 Variable lease expense 614 2,004 Rent expense for operating leases was $3.8 million and $11.4 million for the three and nine months ended December 31, 2018, respectively. The following table presents supplemental cash flow information about the Company’s leases (in thousands): Nine Months Ended December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities $ 8,277 Operating lease assets obtained in exchange for new lease liabilities 1,586 As of December 31, 2019, remaining maturities of lease liabilities were as follows (in thousands): Fiscal Years Ending March 31, Operating Leases 2020 (remaining three months) $ 3,162 2021 12,816 2022 11,937 2023 12,303 2024 11,400 2025 9,785 Thereafter 24,740 Total operating lease payments $ 86,143 Less imputed interest (17,505) Total operating lease liabilities $ 68,638 The table above excludes future payments of $6.5 million related to signed leases that have not yet commenced. These operating leases are expected to commence during 2020 with lease terms of 7.5 to 8.0 years. As previously disclosed in the Company’s Annual Report on Form 10-K for the year ended March 31, 2019, and under previous lease accounting standard ASC 840, the aggregate future non-cancelable minimum rental payments on its operating leases, as of March 31, 2019, were as follows (in thousands): Fiscal Years Ending March 31, Operating Leases 2020 $ 16,374 2021 16,155 2022 15,620 2023 16,105 2024 13,484 Thereafter 32,849 Total minimum future lease payments $ 110,587

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Purchase Commitments —As of December 31, 2019 and March 31, 2019, the Company had purchase commitments of $73.3 million and $33.5 million, respectively, primarily related to data center, cloud and hosting services. Other Contingencies —In the normal course of business, the Company may agree to indemnify third parties with whom it enters into contractual relationships, including customers, lessors, and parties to other transactions with the Company, with respect to certain matters. The Company has agreed, under certain conditions, to hold these third parties harmless against specified losses, such as those arising from a breach of representations or covenants, other third-party claims that the Company’s products when used for their intended purposes infringe the intellectual property rights of such other third parties, or other claims made against certain parties. To date, the Company has not incurred any costs as a result of such obligations and has not accrued any liabilities related to such obligations in the condensed consolidated financial statements. In addition, the Company indemnifies its officers, directors, and certain key employees while they are serving in good faith in their respective capacities. The Company does not currently believe there is a reasonable possibility that a loss may have been incurred under these indemnification obligations. To date, there have been no claims under any such indemnification provisions.

Common Stock and Stockholders'

Common Stock and Stockholders' Equity	9 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Common Stock and Stockholders' Equity	Common Stock and Stockholders’ Equity Employee Stock Purchase Plan —The Company’s board of directors adopted, and the Company’s stockholders approved, the Company’s 2014 Employee Stock Purchase Plan (the “ESPP”), which became effective in December 2014. The ESPP initially reserved and authorized the issuance of up to 1,000,000 shares of common stock. The ESPP provides that the number of shares reserved and available for issuance under the ESPP automatically increases each April, beginning on April 1, 2015, by the lesser of 500,000 shares, 1% of the number of the Company’s common stock shares issued and outstanding on the immediately preceding March 31, or such lesser number of shares as determined by the Company’s board of directors. For the nine months ended December 31, 2019, 117,115 shares of common stock were purchased under the ESPP. For the nine months ended December 31, 2018, 82,851 shares of common stock were purchased under the ESPP. Stock-based compensation expense recognized related to the ESPP was $1.4 million and $1.0 million for the three months ended December 31, 2019 and 2018, respectively, and $4.1 million and $2.5 million for the nine months ended December 31, 2019 and 2018, respectively. As of December 31, 2019, there were 2,656,874 shares available for issuance under the ESPP. 2008 Equity Incentive Plan —The Company’s board of directors adopted, and the Company’s stockholders approved, the 2008 Equity Incentive Plan, or the 2008 Plan, in February 2008. The 2008 Plan was terminated in connection with the Company’s initial public offering (“IPO”), and accordingly, no shares are available for future issuance under this plan. The 2008 Plan continues to govern outstanding awards granted thereunder. 2014 Equity Incentive Plan —The Company’s board of directors adopted, and the Company’s stockholders approved, the Company’s 2014 Equity Incentive Plan (the “2014 Plan”), which became effective in December 2014. The 2014 Plan serves as the successor to the Company’s 2008 Plan. The 2014 Plan initially reserved and authorized the issuance of 5,000,000 shares of the Company’s common stock. Additionally, shares not issued or subject to outstanding grants under the 2008 Plan upon its termination became available under the 2014 Plan, resulting in a total of 5,184,878 available shares under the 2014 Plan as of the effective date of the 2014 Plan. Pursuant to the terms of the 2014 Plan, any shares subject to outstanding stock options or other stock awards under the 2008 Plan that (i) expire or terminate for any reason prior to exercise or settlement, (ii) are forfeited because of the failure to meet a contingency or condition required to vest such shares or otherwise return to the Company or (iii) are reacquired, withheld (or not issued) to satisfy a tax withholding obligation in connection with an award or to satisfy the purchase price or exercise price of a stock award will become available for issuance pursuant to awards granted under the 2014 Plan. The 2014 Plan provides that the number of shares reserved and available for issuance under the plan automatically increases each April 1, beginning on April 1, 2015, by 5% of the outstanding number of shares of the Company’s common stock shares issued and outstanding on the immediately preceding March 31, or such lesser number of shares as determined by the Company’s board of directors. As of December 31, 2019, there were 11,662,325 shares available for issuance under the 2014 Plan. The following table summarizes the Company’s stock option and RSU award activities for the nine months ended December 31, 2019 (in thousands, except exercise price, contractual term and fair value information): Options Outstanding RSUs Outstanding Number Weighted- Weighted- Aggregate Intrinsic Value Number Weighted- Weighted- Aggregate Intrinsic Value Outstanding - April 1, 2019 2,751 $ 35.10 6.3 $ 176,002 2,419 $ 76.34 3.0 $ 238,734 Stock options granted 779 75.87 RSUs granted 1,889 71.03 Stock options exercised (267) 25.39 13,835 RSUs vested (650) 64.29 Stock options canceled/forfeited (220) 79.90 RSUs canceled/forfeited (408) 76.73 Outstanding - December 31, 2019 3,043 $ 43.15 5.9 $ 87,479 3,250 $ 75.62 2.8 $ 213,517 Stock-Based Compensation Expense —Stock-based compensation expense was $26.0 million and $14.8 million for the three months ended December 31, 2019 and 2018, respectively, and $70.5 million and $39.6 million for the nine months ended December 31, 2019 and 2018, respectively. Cost of revenue, research and development, sales and marketing, and general and administrative expenses were as follows (in thousands): Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 Cost of revenue $ 1,315 $ 934 $ 3,837 $ 2,522 Research and development 8,611 4,322 23,073 11,443 Sales and marketing 11,090 6,222 30,682 17,040 General and administrative 4,934 3,286 12,904 8,619 Total stock-based compensation expense $ 25,950 $ 14,764 $ 70,496 $ 39,624 As of December 31, 2019, unrecognized stock-based compensation cost related to outstanding unvested stock options was $30.9 million, which is expected to be recognized over a weighted-average period of approximately 2.9 years. As of December 31, 2019, unrecognized stock-based compensation cost related to outstanding unvested stock units was $230.5 million, which is expected to be recognized over a weighted-average period of approximately 2.7 years.

Deferred Revenue and Performanc

Deferred Revenue and Performance Obligations	9 Months Ended
	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Deferred Revenue and Performance Obligations	Contract Acquisition CostsThe Company capitalizes certain contract acquisition costs primarily consisting of commissions. The balances of deferred costs to obtain customer contracts were $55.1 million and $53.4 million as of December 31, 2019 and March 31, 2019, respectively. In the three months ended December 31, 2019 and 2018, amortization from amounts capitalized was $8.3 million and $6.7 million, respectively. In the nine months ended December 31, 2019 and 2018 amortization from amounts capitalized was $24.0 million and $18.5 million, respectively. In the three months ended December 31, 2019 and 2018 amounts expensed as incurred were $3.6 million and $2.3 million, respectively. In the nine months ended December 31, 2019 and 2018 amounts expensed as incurred were $8.2 million and $5.5 million, respectively. The Company had no impairment loss in relation to costs capitalized.Deferred Revenue and Performance Obligations During the three months ended December 31, 2019 and 2018, $118.7 million and $90.5 million of revenue was recognized that was included in the deferred revenue balances at the beginning of each period, respectively, and $242.2 million and $169.3 million during the nine months ended December 31, 2019 and 2018, respectively. The aggregate unrecognized transaction price of remaining performance obligations as of December 31, 2019 was $489.2 million. The Company expects to recognize more than 94% of the balance as revenue in the 24 months following December 31, 2019 and the remainder thereafter. The aggregate balance of remaining performance obligations represents contracted revenue that has not yet been recognized and does not include contract amounts which are cancelable by the customer and amounts associated with optional renewal periods.

Income Taxes

Income Taxes	9 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts business. Earnings from non-U.S. activities are subject to local country income tax. The Company does not provide for federal income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are to be reinvested indefinitely. The Company recorded an income tax provision of $0.9 million and a benefit of $0.1 million for the three months ended December 31, 2019 and 2018, respectively, and an income tax provision of $1.5 million and $0.4 million for the nine months ended December 31, 2019 and 2018, respectively, related to foreign income taxes and state minimum taxes. Based on the available objectively verifiable evidence during the three and nine months ended December 31, 2019, the Company believes it is more likely than not that the tax benefits of the U.S. losses and New Relic K.K losses incurred during the three and nine months ended December 31, 2019 may not be realized. Accordingly, the Company did not record the tax benefits for U.S. losses and New Relic K.K losses incurred during the three and nine months ended December 31, 2019. The Company does not expect the unrecognized tax benefits to change significantly over the next 12 months. The primary differences between the effective tax rate and the statutory tax rate relate to the change of valuation allowance, the effects of stock-based compensation and research tax credits.

Net Loss Per Share

Net Loss Per Share	9 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Net Loss Per Share	Net Loss Per Share Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period, less shares subject to repurchase, and excludes any dilutive effects of employee share-based awards and warrants. Diluted net loss per share is computed giving effect to all potential dilutive common shares, including common stock issuable upon exercise of stock options and unvested restricted common stock. As the Company had net losses for each of the three and nine months ended December 31, 2019 and 2018, all potential common shares were determined to be anti-dilutive, resulting in basic and diluted net loss per share being equal. Additionally, the 4.5 million shares underlying the conversion option in the Notes were not considered in the calculation of diluted net loss per share as the effect would be anti-dilutive. The Notes were not convertible as of December 31, 2019. The Company expects to settle the principal amount of the Notes in cash and therefore will use the treasury stock method for calculating any potential dilutive effect of the conversion spread on diluted net income per share, if applicable. The following table sets forth the computation of net loss per share, basic and diluted (in thousands, except per share amounts): Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 Numerator: Net loss attributable to New Relic $ (27,195) $ (10,103) $ (60,978) $ (24,054) Denominator: Weighted average shares used to compute net loss per share, basic and diluted 58,733 57,096 58,352 56,663 Net loss attributable to New Relic per share—basic and diluted $ (0.46) $ (0.18) $ (1.05) $ (0.42) The following outstanding options, unvested shares, and ESPP shares were excluded (as common stock equivalents) from the computation of diluted net loss per common share for the periods presented as their effect would have been antidilutive (in thousands): As of December 31, 2019 2018 Options to purchase common stock 3,043 2,874 Restricted stock units 3,250 1,891 ESPP shares 132 62 6,425 4,827

Revenue by Geographic Location

Revenue by Geographic Location	9 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Revenue by Geographic Location	Revenue by Geographic Location The following table shows the Company’s revenue by geographic areas, as determined based on the billing address of its customers (in thousands): Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 United States $ 103,673 $ 84,731 $ 299,544 $ 237,099 EMEA 27,121 22,533 78,024 63,752 APAC 14,033 10,086 39,181 27,551 Other 8,201 6,661 23,104 18,726 Total revenue $ 153,028 $ 124,011 $ 439,853 $ 347,128 Substantially all of the Company’s long-lived assets were attributable to operations in the United States as of December 31, 2019 and March 31, 2019.

Description of Business and S_2

Description of Business and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Description of Business	Description of Business —New Relic, Inc. (the “Company” or “New Relic”) was incorporated in Delaware on February 20, 2008, when it converted from a Delaware limited liability company called New Relic Software, LLC, which was formed in Delaware in September 2007. The Company is a provider of an integrated, multi-tenant, cloud-based observability and analytics platform that enables users to collect, store and analyze massive amounts of data in real time.
Basis of Presentation	Basis of Presentation —These unaudited condensed consolidated financial statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”) and applicable rules and regulations of the Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended March 31, 2019, as filed with the SEC on May 15, 2019 (the “Annual Report”). In the opinion of management, the unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, comprehensive loss, stockholders’ equity and cash flows for the interim period, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year ending March 31, 2020. The condensed consolidated balance sheet as of March 31, 2019 included herein was derived from the audited financial statements as of that date.
Use of Estimates	Use of Estimates —The preparation of the Company’s condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of income and expenses during the reporting period. Significant items subject to such estimates and assumptions include the fair value of share-based awards, fair value of purchased intangible assets and goodwill, fair value of debt and equity components related to the 0.5% convertible senior notes due 2023 (the “Notes”), whether an arrangement is or contains a lease, the discount rate used for operating leases, useful lives of purchased intangible assets, unrecognized tax benefits, expected benefit period for deferred commissions and the capitalization and estimated useful life of the Company’s software development costs. These estimates are based on information available as of the date of the condensed consolidated financial statements; therefore, actual results could differ from management’s estimates.
Concentration of Risk	Concentration of Risk —There was no customer that represented more than 10% of the Company’s accounts receivable balance as of December 31, 2019 or March 31, 2019. There was no customer that individually exceeded 10% of the Company’s revenue during the three or nine months ended December 31, 2019 or 2018.
Recently Issued Accounting Pronouncements Not Yet Adopted and Adopted	Recently Issued Accounting Pronouncements Not Yet Adopted In June 2016, the Financial Accounting Standards Board (FASB) issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments , which amends guidance on reporting credit losses for assets held at amortized cost basis and available-for-sale debt securities. The updated guidance requires that credit losses on available-for-sale debt securities be presented as an allowance rather than as a write-down. The measurement of credit losses for newly recognized financial assets and subsequent changes in the allowance for credit losses are recorded in the statement of income. The update to the standard will be effective for the Company in the fiscal year beginning April 1, 2020. The Company has not yet adopted ASU 2016-13 and is currently evaluating the effect the standard will have on its condensed consolidated financial statements. In January 2017, the FASB issued ASU 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment , which eliminates Step 2 from the goodwill impairment test. This standard is effective for goodwill impairment tests performed by the Company in the fiscal year beginning April 1, 2020. The Company has not yet adopted ASU 2017-04 and does not believe that this standard will have a material impact on its condensed consolidated financial statements or disclosures. In August 2018, the FASB issued ASU 2018-13, Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement , which amends ASC 820, Fair Value Measurement. ASU 2018-13 modifies the disclosure requirements for fair value measurements by removing, modifying, or adding certain disclosures. The update to the standard will be effective for the Company in the fiscal year beginning April 1, 2020. The removed and modified disclosures will be adopted on a retrospective basis and the new disclosures will be adopted on a prospective basis. The Company has not yet adopted ASU 2018-13 and is currently evaluating the effect the standard will have on its condensed consolidated financial statements. Recently Adopted Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) which superseded previous guidance related to accounting for leases . This new guidance requires lessees to recognize most leases on their balance sheets as lease right-of-use assets with corresponding lease liabilities and eliminates certain real estate-specific provisions. In July 2018, the FASB also issued ASU No. 2018-11, Leases (Topic 842). The ASU provides an optional transition method that entities can use when adopting the standard and a practical expedient that permits lessors to not separate nonlease components from the associated lease component if certain conditions are met. The new guidance is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period. The Company adopted ASC 842 on April 1, 2019 using a modified retrospective method, under which financial results reported in periods prior to April 1, 2019 were not adjusted. The Company elected the package of transition practical expedients, which among other things, does not require reassessment of historical lease classifications of leases in place as of April 1, 2019. The effect of adopting ASC 842 resulted in the recognition of lease right-of-use assets and corresponding lease liabilities on the Company’s condensed consolidated balance sheet. As of June 30, 2019, the first quarter of adoption, the aggregate balance of lease right-of-use assets and lease liabilities was $64.2 million and $71.6 million, respectively. The standard did not affect the Company’s condensed consolidated statement of operations or cash flows. In June 2018, the FASB issued ASU 2018-07, regarding Compensation—Stock Compensation (Topic 718) , which largely aligns the accounting for share-based compensation for non-employees with employees. The guidance is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period. The Company adopted this standard on April 1, 2019. The adoption did not have a significant impact on its condensed consolidated financial statements. In August 2018, the FASB issued ASU 2018-15, regarding Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40) , 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 guidance is effective for annual reporting periods beginning after December 15, 2019, including interim periods within that reporting period. The Company adopted the standard on April 1, 2019. The adoption did not have a significant impact on its condensed consolidated financial statements.

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Schedule of Aggregate Purchase Price Allocation	The following table presents the purchase price allocation related to the acquisition (in thousands): Cash consideration paid $ 25,119 Fair value of common shares issued $ 24,535 Total consideration $ 49,654 Post-business combination compensation expense $ (12,639) Cash paid to settle unvested stock options $ (764) Total purchase price $ 36,251 Net liabilities assumed $ 259 Deferred tax liabilities $ 2,289 Deferred tax assets $ (1,721) Developed technology acquired $ (10,900) Goodwill $ 26,178

Joint Venture (Tables)

Joint Venture (Tables)	9 Months Ended
	Dec. 31, 2019
Equity Method Investments and Joint Ventures [Abstract]
Schedule of Redeemable Non-Controlling Interest	The following table summarizes the activity in the redeemable non-controlling interest for the period indicated below: Balance as of March 31, 2019 $ 2,733 Investment by redeemable non-controlling interest 978 Net loss attributable to redeemable non-controlling interest (1,437) Balance as of December 31, 2019 $ 2,274

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Information about Financial Assets Measured at Fair Value on Recurring Basis	The following tables present information about the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2019 and March 31, 2019 based on the three-tier fair value hierarchy (in thousands): Fair Value Measurements as of December 31, 2019 Level 1 Level 2 Level 3 Total Cash and cash equivalents: Money market funds $ 101,431 $ — $ — $ 101,431 Commercial paper — 5,647 — 5,647 Short-term investments: Certificates of deposit — 30,066 — 30,066 Commercial paper — 13,224 — 13,224 Corporate notes and bonds — 48,421 — 48,421 U.S. treasury securities 456,340 — — 456,340 U.S. government agencies — 9,611 — 9,611 Restricted cash: Money market funds 5,639 — — 5,639 Total $ 563,410 $ 106,969 $ — $ 670,379 Included in cash and cash equivalents $ 107,078 Included in short-term investments $ 557,662 Included in restricted cash $ 5,639 Fair Value Measurements as of March 31, 2019 Level 1 Level 2 Level 3 Total Cash and cash equivalents: Money market funds $ 133,239 $ — $ — $ 133,239 Commercial paper — 9,973 — 9,973 Short-term investments: Certificates of deposit — 24,726 — 24,726 Commercial paper — 37,071 — 37,071 Corporate notes and bonds — 27,259 — 27,259 U.S. treasury securities 402,091 — — 402,091 U.S. government agencies — 19,225 — 19,225 Restricted cash: Money market funds 8,805 — — 8,805 Total $ 544,135 $ 118,254 $ — $ 662,389 Included in cash and cash equivalents $ 143,212 Included in short-term investments $ 510,372 Included in restricted cash $ 8,805
Classification of Available-for-Sale Short-Term Investments by Contractual Maturities	The following table classifies the Company’s available-for-sale short-term investments by contractual maturities as of December 31, 2019 and March 31, 2019 (in thousands): December 31, 2019 March 31, 2019 Due within one year $ 316,984 $ 346,768 Due after one year and within three years 240,678 163,604 Total $ 557,662 $ 510,372

Property and Equipment (Tables)

Property and Equipment (Tables)	9 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment, Net	Property and equipment, net, consisted of the following (in thousands): December 31, 2019 March 31, 2019 Computers, software, and equipment $ 12,945 $ 11,245 Site operation equipment 102,995 66,727 Furniture and fixtures 4,659 3,990 Leasehold improvements 37,839 40,541 Capitalized software development costs 47,815 43,063 Total property and equipment 206,253 165,566 Less: accumulated depreciation and amortization (101,213) (84,824) Total property and equipment, net $ 105,040 $ 80,742

0.5% Convertible Senior Notes_2

0.5% Convertible Senior Notes and Capped Call (Tables)	9 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Summary of Convertible Debt	The net carrying amount of the liability component of the Notes was as follows (in thousands): December 31, 2019 March 31, 2019 Principal $ 500,250 $ 500,250 Unamortized debt discount (71,859) (86,374) Unamortized issuance costs (6,736) (7,939) Net carrying amount $ 421,655 $ 405,937
Summary of Interest Expense	Interest expense related to the Notes was as follows (in thousands): Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 Amortization of debt discount $ 4,901 $ 4,654 $ 14,515 $ 11,421 Amortization of issuance costs 413 367 1,203 891 Contractual interest expense 625 625 1,876 1,549 Total interest expense $ 5,939 $ 5,646 $ 17,594 $ 13,861

Goodwill and Purchased Intang_2

Goodwill and Purchased Intangibles Assets (Tables)	9 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the carrying amount of goodwill for the nine months ended December 31, 2019 consist of the following (in thousands): Goodwill as of March 31, 2019 $ 41,512 Goodwill acquired 3,600 Goodwill as of December 31, 2019 $ 45,112
Schedule of Purchased Intangible Assets Subject to Amortization	Purchased intangible assets subject to amortization as of December 31, 2019 consisted of the following (in thousands): Gross Carrying Accumulated Net Carrying Developed technology $ 15,316 $ (1,257) $ 14,059 Purchased intangible assets subject to amortization as of March 31, 2019 consisted of the following (in thousands): Gross Carrying Accumulated Net Carrying Developed technology $ 18,716 $ (4,861) $ 13,855
Schedule of Estimated Future Amortization Expense	Estimated future amortization expense as of December 31, 2019 was as follows (in thousands): Fiscal Years Ending March 31, Estimated Future Amortization Expense 2020 (remaining three months) $ 368 2021 5,105 2022 4,619 2023 3,967 $ 14,059

Leases (Tables)

Leases (Tables)	9 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Schedule of Condensed Consolidated Balance Sheet	The following table presents information about leases on the condensed consolidated balance sheet (in thousands): December 31, 2019 Assets Lease right-of-use-assets $ 59,838 Liabilities Lease liabilities $ 8,789 Lease liabilities, non-current 59,849 Total operating lease liabilities $ 68,638
Schedule of Condensed Consolidated Statement of Operations and Supplemental Cash Flow Information	The following table presents information about leases on its condensed consolidated statement of operations (in thousands): Three Months Ended December 31, 2019 Nine Months Ended December 31, 2019 Operating lease expense $ 3,270 $ 10,940 Short-term lease expense 272 804 Variable lease expense 614 2,004 Rent expense for operating leases was $3.8 million and $11.4 million for the three and nine months ended December 31, 2018, respectively. The following table presents supplemental cash flow information about the Company’s leases (in thousands): Nine Months Ended December 31, 2019 Cash paid for amounts included in the measurement of lease liabilities $ 8,277 Operating lease assets obtained in exchange for new lease liabilities 1,586
Summary of Operating Lease Maturity Under Topic 842	As of December 31, 2019, remaining maturities of lease liabilities were as follows (in thousands): Fiscal Years Ending March 31, Operating Leases 2020 (remaining three months) $ 3,162 2021 12,816 2022 11,937 2023 12,303 2024 11,400 2025 9,785 Thereafter 24,740 Total operating lease payments $ 86,143 Less imputed interest (17,505) Total operating lease liabilities $ 68,638
Summary of Future Minimum Lease Payments Under Topic 840	As previously disclosed in the Company’s Annual Report on Form 10-K for the year ended March 31, 2019, and under previous lease accounting standard ASC 840, the aggregate future non-cancelable minimum rental payments on its operating leases, as of March 31, 2019, were as follows (in thousands): Fiscal Years Ending March 31, Operating Leases 2020 $ 16,374 2021 16,155 2022 15,620 2023 16,105 2024 13,484 Thereafter 32,849 Total minimum future lease payments $ 110,587

Common Stock and Stockholders_2

Common Stock and Stockholders' Equity (Tables)	9 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of Stock Option and RSU Award Activities	The following table summarizes the Company’s stock option and RSU award activities for the nine months ended December 31, 2019 (in thousands, except exercise price, contractual term and fair value information): Options Outstanding RSUs Outstanding Number Weighted- Weighted- Aggregate Intrinsic Value Number Weighted- Weighted- Aggregate Intrinsic Value Outstanding - April 1, 2019 2,751 $ 35.10 6.3 $ 176,002 2,419 $ 76.34 3.0 $ 238,734 Stock options granted 779 75.87 RSUs granted 1,889 71.03 Stock options exercised (267) 25.39 13,835 RSUs vested (650) 64.29 Stock options canceled/forfeited (220) 79.90 RSUs canceled/forfeited (408) 76.73 Outstanding - December 31, 2019 3,043 $ 43.15 5.9 $ 87,479 3,250 $ 75.62 2.8 $ 213,517
Schedule of Stock-based Compensation Expense Attributed to Cost of Revenue, Research and Development, Sales and Marketing and General and Administrative Expenses	Cost of revenue, research and development, sales and marketing, and general and administrative expenses were as follows (in thousands): Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 Cost of revenue $ 1,315 $ 934 $ 3,837 $ 2,522 Research and development 8,611 4,322 23,073 11,443 Sales and marketing 11,090 6,222 30,682 17,040 General and administrative 4,934 3,286 12,904 8,619 Total stock-based compensation expense $ 25,950 $ 14,764 $ 70,496 $ 39,624

Net Loss Per Share (Tables)

Net Loss Per Share (Tables)	9 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Computation of Net Loss Per Share, Basic and Diluted	The following table sets forth the computation of net loss per share, basic and diluted (in thousands, except per share amounts): Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 Numerator: Net loss attributable to New Relic $ (27,195) $ (10,103) $ (60,978) $ (24,054) Denominator: Weighted average shares used to compute net loss per share, basic and diluted 58,733 57,096 58,352 56,663 Net loss attributable to New Relic per share—basic and diluted $ (0.46) $ (0.18) $ (1.05) $ (0.42)
Antidilutive Securities Excluded from Computation of Diluted Net Loss per Common Share of Common Stock Equivalents	The following outstanding options, unvested shares, and ESPP shares were excluded (as common stock equivalents) from the computation of diluted net loss per common share for the periods presented as their effect would have been antidilutive (in thousands): As of December 31, 2019 2018 Options to purchase common stock 3,043 2,874 Restricted stock units 3,250 1,891 ESPP shares 132 62 6,425 4,827

Revenue by Geographic Location

Revenue by Geographic Location (Tables)	9 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Schedule of Revenue by Geographic Areas	The following table shows the Company’s revenue by geographic areas, as determined based on the billing address of its customers (in thousands): Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 United States $ 103,673 $ 84,731 $ 299,544 $ 237,099 EMEA 27,121 22,533 78,024 63,752 APAC 14,033 10,086 39,181 27,551 Other 8,201 6,661 23,104 18,726 Total revenue $ 153,028 $ 124,011 $ 439,853 $ 347,128

Description of Business and S_3

Description of Business and Summary of Significant Accounting Policies - Narrative (Details)	Dec. 31, 2019	May 31, 2018
Convertible Debt | Convertible Senior Notes Due 2023
Debt Instrument [Line Items]
Stated interest rate	0.50%	0.50%

Description of Business and S_4

Description of Business and Summary of Significant Accounting Policies - Recently Issued Accounting Pronouncements Not Yet Adopted (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease right-of-use assets	$ 59,838
Total operating lease liabilities	$ 68,638
ASU 2018-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease right-of-use assets		$ 64,200
Total operating lease liabilities		$ 71,600

Business Combinations - Narrati

Business Combinations - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 31, 2019	Jan. 25, 2019	Oct. 09, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Business Acquisition [Line Items]
Preliminary purchase price allocation, goodwill				$ 45,112		$ 45,112		$ 41,512
Stock-based compensation expense				$ 25,950	$ 14,764	$ 70,496	$ 39,624
IOpipe, Inc.
Business Acquisition [Line Items]
Cash consideration paid	$ 5,100
Amount excluded from the aggregate purchase price	900
Preliminary purchase price allocation, goodwill	3,600
IOpipe, Inc. | Technology
Business Acquisition [Line Items]
Acquired technology	$ 1,500
Acquired technology, estimated useful life	3 years
SignifAI, Inc.
Business Acquisition [Line Items]
Cash consideration paid		$ 25,119
Amount excluded from the aggregate purchase price		12,600
Preliminary purchase price allocation, goodwill		26,178
Consideration paid		$ 36,251
Number of shares issued to acquire capital stock (in shares)		143,861
Aggregate fair value of common stock		$ 11,900
Fair value of shares issued to acquire capital stock (in usd per share)		$ 82.69
Stock-based compensation expense		$ 800
Holdback arrangement, common stock (in shares)		152,840
SignifAI, Inc. | Minimum
Business Acquisition [Line Items]
Vesting period		24 months
SignifAI, Inc. | Maximum
Business Acquisition [Line Items]
Vesting period		36 months
CoScale NV
Business Acquisition [Line Items]
Cash consideration paid			$ 6,300
Amount excluded from the aggregate purchase price			900
Preliminary purchase price allocation, goodwill			3,400
CoScale NV | Technology
Business Acquisition [Line Items]
Acquired technology			$ 2,900
Acquired technology, estimated useful life			3 years

Business Combinations - Schedul

Business Combinations - Schedule of Aggregate Purchase Price Allocation (Details) - USD ($) $ in Thousands	Jan. 25, 2019	Dec. 31, 2019	Mar. 31, 2019
Business Acquisition [Line Items]
Goodwill		$ 45,112	$ 41,512
SignifAI, Inc.
Business Acquisition [Line Items]
Cash consideration paid	$ 25,119
Fair value of common shares issued	24,535
Total consideration	49,654
Post-business combination compensation expense	(12,639)
Cash paid to settle unvested stock options	(764)
Total purchase price	36,251
Net liabilities assumed	259
Deferred tax liabilities	2,289
Deferred tax assets	(1,721)
Developed technology acquired	(10,900)
Goodwill	$ 26,178

Joint Venture - Narrative (Deta

Joint Venture - Narrative (Details) ¥ in Millions	Aug. 21, 2019USD ($)	Aug. 21, 2019JPY (¥)	Aug. 21, 2018USD ($)	Aug. 21, 2018JPY (¥)	Dec. 31, 2019USD ($)	Aug. 21, 2019JPY (¥)
Schedule of Equity Method Investments [Line Items]
Additional investor contribution	$ 1,500,000					¥ 156
Redemption value of redeemable non-controlling interest					$ 0
New Relic K.K
Schedule of Equity Method Investments [Line Items]
Ownership percentage, parent					60.00%
The Investors
Schedule of Equity Method Investments [Line Items]
Contributions for joint venture	$ 1,000,000	¥ 104	$ 3,600,000	¥ 396
The Investors | New Relic K.K
Schedule of Equity Method Investments [Line Items]
Ownership percentage, noncontrolling interest			40.00%	40.00%

Joint Venture - Schedule of Red

Joint Venture - Schedule of Redeemable Non-Controlling Interest (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2019USD ($)
Increase (Decrease) in Temporary Equity [Roll Forward]
Balance as of March 31, 2019	$ 2,733
Investment by redeemable non-controlling interest	978
Net loss attributable to redeemable non-controlling interest	(1,437)
Balance as of December 31, 2019	$ 2,274

Fair Value Measurements - Infor

Fair Value Measurements - Information about Financial Assets Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	$ 670,379	$ 662,389
Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	107,078	143,212
Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	557,662	510,372
Restricted cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	5,639	8,805
Money market funds | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	101,431	133,239
Commercial paper | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	5,647	9,973
Commercial paper | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	13,224	37,071
Certificates of deposit | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	30,066	24,726
Corporate notes and bonds | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	48,421	27,259
U.S. treasury securities | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	456,340	402,091
U.S. government agencies | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	9,611	19,225
Money market funds | Restricted cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	5,639	8,805
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	563,410	544,135
Level 1 | Money market funds | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	101,431	133,239
Level 1 | Commercial paper | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 1 | Commercial paper | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 1 | Certificates of deposit | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 1 | Corporate notes and bonds | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 1 | U.S. treasury securities | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	456,340	402,091
Level 1 | U.S. government agencies | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 1 | Money market funds | Restricted cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	5,639	8,805
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	106,969	118,254
Level 2 | Money market funds | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 2 | Commercial paper | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	5,647	9,973
Level 2 | Commercial paper | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	13,224	37,071
Level 2 | Certificates of deposit | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	30,066	24,726
Level 2 | Corporate notes and bonds | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	48,421	27,259
Level 2 | U.S. treasury securities | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 2 | U.S. government agencies | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	9,611	19,225
Level 2 | Money market funds | Restricted cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3 | Money market funds | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3 | Commercial paper | Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3 | Commercial paper | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3 | Certificates of deposit | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3 | Corporate notes and bonds | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3 | U.S. treasury securities | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3 | U.S. government agencies | Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	0	0
Level 3 | Money market funds | Restricted cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets fair value	$ 0	$ 0

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Detail) - USD ($)	Dec. 31, 2019	Mar. 31, 2019	May 31, 2018
Debt Instrument [Line Items]
Unrealized loss position of securities for more than 12 months	$ 0	$ 0
Convertible Debt | Convertible Senior Notes Due 2023
Debt Instrument [Line Items]
Stated interest rate	0.50%		0.50%
Convertible Debt | Level 2 | Convertible Senior Notes Due 2023
Debt Instrument [Line Items]
Fair value of Notes	$ 442,800,000

Fair Value Measurements - Class

Fair Value Measurements - Classification of Available-for-Sale Short-Term Investments by Contractual Maturities (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Due within one year	$ 316,984	$ 346,768
Due after one year and within three years	240,678	163,604
Total	$ 557,662	$ 510,372

Contract Acquisition Costs (Det

Contract Acquisition Costs (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Capitalized contract cost	$ 55,100,000		$ 55,100,000		$ 53,400,000
Capitalized contract cost, amortization	8,300,000	$ 6,700,000	24,000,000	$ 18,500,000
Costs expensed as incurred	3,600,000	2,300,000	8,200,000	5,500,000
Contract asset impairment	$ 0	$ 0	$ 0	$ 0

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 206,253	$ 165,566
Less: accumulated depreciation and amortization	(101,213)	(84,824)
Total property and equipment, net	105,040	80,742
Computers, software, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	12,945	11,245
Site operation equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	102,995	66,727
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment	4,659	3,990
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	37,839	40,541
Capitalized software development costs
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 47,815	$ 43,063

Property and Equipment - Narrat

Property and Equipment - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Depreciation and amortization expense	$ 10.2	$ 6.5	$ 30.8	$ 18.7

0.5% Convertible Senior Notes_3

0.5% Convertible Senior Notes and Capped Call - Narrative (Details) $ / shares in Units, shares in Millions	1 Months Ended	6 Months Ended	9 Months Ended
	May 31, 2018USD ($)day$ / sharesshares	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)	Mar. 31, 2019USD ($)
Debt Instrument [Line Items]
Purchase of capped calls		$ 63,200,000	$ 63,182,000
Additional Paid-In Capital
Debt Instrument [Line Items]
Purchase of capped calls			$ 63,182,000
Capped Calls
Debt Instrument [Line Items]
Convertible debt, conversion price (in dollars per share) | $ / shares	$ 110.81
Initial cap price (in dollars per share) | $ / shares	$ 173.82
Number of shares covered by cap call (in shares) | shares	4.5
Capped Calls | Additional Paid-In Capital
Debt Instrument [Line Items]
Cost incurred related to capped calls		$ 63,200,000
Convertible Debt | Notes Price Trigger Measurement
Debt Instrument [Line Items]
Threshold trading days | day	20
Threshold consecutive trading days | day	5
Threshold percentage of stock price trigger (less than)	130.00%
Convertible Debt | Stock Price Trigger Measurement
Debt Instrument [Line Items]
Threshold trading days | day	5
Threshold consecutive trading days | day	30
Threshold percentage of stock price trigger (less than)	98.00%
Convertible Debt | Convertible Senior Notes Due 2023
Debt Instrument [Line Items]
Debt instrument face amount	$ 500,250,000
Stated interest rate	0.50%			0.50%
Convertible debt, conversion ratio	9.02
Convertible debt, conversion price (in dollars per share) | $ / shares	$ 110.81
Debt discount for Conversion Option	$ 102,500,000
Effective interest rate	5.74%
Issuance costs	$ 11,600,000			$ 6,736,000	$ 7,939,000
Debt issuance costs, equity component	9,200,000
Unamortized discount issuance costs	2,400,000
Convertible Debt | Convertible Senior Notes Due 2023, Over-Allotment Option
Debt Instrument [Line Items]
Debt instrument face amount	$ 65,250,000

0.5% Convertible Senior Notes_4

0.5% Convertible Senior Notes and Capped Call - Schedule of Liability Component of Convertible Debt (Details) - Convertible Debt - Convertible Senior Notes Due 2023 - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019	May 31, 2018
Debt Instrument [Line Items]
Principal	$ 500,250	$ 500,250
Unamortized debt discount	(71,859)	(86,374)
Unamortized issuance costs	(6,736)	(7,939)	$ (11,600)
Net carrying amount	$ 421,655	$ 405,937

0.5% Convertible Senior Notes_5

0.5% Convertible Senior Notes and Capped Call - Schedule of Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total interest expense	$ 5,939	$ 5,646	$ 17,594	$ 13,861
Convertible Debt | Convertible Senior Notes Due 2023
Debt Instrument [Line Items]
Amortization of debt discount	4,901	4,654	14,515	11,421
Amortization of issuance costs	413	367	1,203	891
Contractual interest expense	$ 625	$ 625	$ 1,876	$ 1,549

Goodwill and Purchased Intang_3

Goodwill and Purchased Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2019USD ($)
Goodwill [Roll Forward]
Goodwill as of March 31, 2019	$ 41,512
Goodwill acquired	3,600
Goodwill as of December 31, 2019	$ 45,112

Goodwill and Purchased Intang_4

Goodwill and Purchased Intangibles Assets - Schedule of Purchased Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 14,059	$ 13,855
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	15,316	18,716
Accumulated Amortization	(1,257)	(4,861)
Net Carrying Amount	$ 14,059	$ 13,855

Goodwill and Purchased Intang_5

Goodwill and Purchased Intangibles Assets - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 0.4	$ 0.4	$ 1.3	$ 0.8

Goodwill and Purchased Intang_6

Goodwill and Purchased Intangibles Assets - Schedule of Estimated Future Amortization Expense (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
2020 (remaining three months)	$ 368
2021	5,105
2022	4,619
2023	3,967
Net Carrying Amount	$ 14,059	$ 13,855

Leases - Assets and Liabilities

Leases - Assets and Liabilities (Details) $ in Thousands	Dec. 31, 2019USD ($)
Assets
Lease right-of-use assets	$ 59,838
Liabilities
Lease liabilities	8,789
Lease liabilities, non-current	59,849
Total operating lease liabilities	$ 68,638

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2018	Dec. 31, 2018	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Weighted average remaining lease term			7 years
Weighted average discount rate			6.70%
Rent expense	$ 3.8	$ 11.4
Signed leases not yet commenced			$ 6.5
Minimum
Lessee, Lease, Description [Line Items]
Term of contract			7 years 6 months
Maximum
Lessee, Lease, Description [Line Items]
Term of contract			8 years

Leases - Expense (Details)

Leases - Expense (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
Leases [Abstract]
Operating lease expense	$ 3,270	$ 10,940
Short-term lease expense	272	804
Variable lease expense	$ 614	$ 2,004

Leases - Cash Flow Information

Leases - Cash Flow Information (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2019USD ($)
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ 8,277
Operating lease assets obtained in exchange for new lease liabilities	$ 1,586

Leases - Operating Lease Maturi

Leases - Operating Lease Maturity Schedule (Details) $ in Thousands	Dec. 31, 2019USD ($)
Leases [Abstract]
2020 (remaining three months)	$ 3,162
2021	12,816
2022	11,937
2023	12,303
2024	11,400
2025	9,785
Thereafter	24,740
Total operating lease payments	86,143
Less imputed interest	(17,505)
Total operating lease liabilities	$ 68,638

Leases - Future Minimum Lease P

Leases - Future Minimum Lease Payments Under Topic 840 (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
2020	$ 16,374
2021	16,155
2022	15,620
2023	16,105
2024	13,484
Thereafter	32,849
Total minimum future lease payments	$ 110,587

Commitments and Contingencies (

Commitments and Contingencies (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Purchase commitments	$ 73.3	$ 33.5

Common Stock and Stockholders_3

Common Stock and Stockholders' Equity - Narrative (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Dec. 31, 2014	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Stock-based compensation expense		$ 25,950	$ 14,764	$ 70,496	$ 39,624
Unrecognized stock-based compensation cost related to outstanding unvested stock awards		30,900		$ 30,900
Stock-based compensation cost expected to be recognized over weighted-average period				2 years 10 months 24 days
Expected to vest unrecognized stock-based compensation cost related to outstanding unvested stock options		230,500		$ 230,500
Unvested Stock Options
Class of Stock [Line Items]
Stock based compensation cost is expected to be recognized over a weighted-average period				2 years 8 months 12 days
ESPP shares
Class of Stock [Line Items]
Shares reserved for issuance under plan (in shares)	1,000,000
Additional shares available for issuance under the plan (in shares)	500,000
Percentage of common stock shares increased under the plan	1.00%
Common stock purchased under Employee Stock Purchase Plan (in shares)				117,115	82,851
Stock-based compensation expense		$ 1,400	$ 1,000	$ 4,100	$ 2,500
Shares available for issuance (in shares)		2,656,874		2,656,874
2008 Equity Incentive Plan
Class of Stock [Line Items]
Shares available for issuance (in shares)		0		0
2014 Equity Incentive Plan
Class of Stock [Line Items]
Shares reserved for issuance under plan (in shares)	5,000,000
Shares available for issuance (in shares)		11,662,325		11,662,325
Shares available for grant under plan (in shares)	5,184,878
Increase in shares available under plan, percentage of outstanding common stock shares	5.00%

Common Stock and Stockholders_4

Common Stock and Stockholders' Equity - Schedule of Stock Option and RSU Award Activities (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2019	Dec. 31, 2019	Mar. 31, 2019
Number of Shares
Beginning balance (in shares)	2,751	2,751
Stock options granted (in shares)		779
Stock options exercised (in shares)		(267)
Stock options canceled/forfeited (in shares)		(220)
Ending balance (in shares)		3,043
Weighted- Average Exercise Price
Beginning balance (in usd per share)	$ 35.10	$ 35.10
Stock options granted (in usd per share)		75.87
Stock options exercised (in usd per share)		25.39
Stock options canceled/forfeited (in usd per share)		79.90
Ending balance (in usd per share)		$ 43.15
Weighted- Average Remaining Contractual Term (in years)
Weighted- Average Remaining Contractual Term (in years)	6 years 3 months 18 days	5 years 10 months 24 days
Aggregate Intrinsic Value
Aggregate intrinsic value, outstanding shares		$ 87,479	$ 176,002
Stock options exercised		$ 13,835
Number of Shares
Beginning balance (in shares)	2,419	2,419
RSUs granted (in shares)		1,889
RSUs vested (in shares)		(650)
RSUs canceled/forfeited (in shares)		(408)
Ending balance (in shares)		3,250
Weighted- Average Grant Date Fair Value
Beginning balance (in usd per share)	$ 76.34	$ 76.34
RSUs granted (in usd per share)		71.03
RSUs vested (in usd per share)		64.29
RSUs canceled/forfeited (in usd per share)		76.73
Ending balance (in usd per share)		$ 75.62
Weighted- Average Remaining Contractual Term (in years)
Weighted Average Remaining Contractual Terms (in years)	3 years	2 years 9 months 18 days
Aggregate Intrinsic Value
Aggregate intrinsic value, outstanding		$ 213,517	$ 238,734

Common Stock and Stockholders_5

Common Stock and Stockholders' Equity - Summary of Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 25,950	$ 14,764	$ 70,496	$ 39,624
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	1,315	934	3,837	2,522
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	8,611	4,322	23,073	11,443
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	11,090	6,222	30,682	17,040
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 4,934	$ 3,286	$ 12,904	$ 8,619

Deferred Revenue and Performa_2

Deferred Revenue and Performance Obligations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Recognized revenue that was previously included in deferred revenue balances	$ 118.7	$ 90.5	$ 242.2	$ 169.3

Deferred Revenue and Performa_3

Deferred Revenue and Performance Obligations - Performance Obligation (Details) $ in Millions	Dec. 31, 2019USD ($)
Revenue from Contract with Customer [Abstract]
Revenue, remaining performance obligation	$ 489.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percentage	94.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	24 months

Income Taxes (Detail)

Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income tax (benefit) provision	$ 894	$ (106)	$ 1,518	$ 440

Net Loss Per Share - Narrative

Net Loss Per Share - Narrative (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted net loss per common share (in shares)			6,425	4,827
Convertible Debt Securities
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted net loss per common share (in shares)	4,500	4,500	4,500	4,500

Net Loss Per Share - Computatio

Net Loss Per Share - Computation of Net Loss Per Share, Basic and Diluted (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Numerator:
Net loss attributable to New Relic	$ (27,195)	$ (10,103)	$ (60,978)	$ (24,054)
Denominator:
Weighted-average shares used to compute net loss per share, basic and diluted (in shares)	58,733	57,096	58,352	56,663
Net loss attributable to New Relic per share - basic and diluted (in usd per share)	$ (0.46)	$ (0.18)	$ (1.05)	$ (0.42)

Net Loss Per Share - Antidiluti

Net Loss Per Share - Antidilutive Securities Excluded from Computation of Diluted Net Loss per Common Share of Common Stock Equivalents (Detail) - shares shares in Thousands	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted net loss per common share (in shares)	6,425	4,827
ESPP shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted net loss per common share (in shares)	132	62
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted net loss per common share (in shares)	3,250	1,891
Options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of diluted net loss per common share (in shares)	3,043	2,874

Revenue by Geographic Locatio_2

Revenue by Geographic Location - Schedule of Revenue by Geographic Areas (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Revenue	$ 153,028	$ 124,011	$ 439,853	$ 347,128
United States
Segment Reporting Information [Line Items]
Revenue	103,673	84,731	299,544	237,099
EMEA
Segment Reporting Information [Line Items]
Revenue	27,121	22,533	78,024	63,752
APAC
Segment Reporting Information [Line Items]
Revenue	14,033	10,086	39,181	27,551
Other
Segment Reporting Information [Line Items]
Revenue	$ 8,201	$ 6,661	$ 23,104	$ 18,726