Snap (SNAP) 10-Q 24 Apr 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 18, 2019
Entity Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	SNAP
Entity Registrant Name	Snap Inc
Entity Central Index Key	0001564408
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Class A Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		1,064,993,070
Class B Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		48,784,023
Class C Common Stock
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding		226,286,909

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities
Net loss	$ (310,407)	$ (385,785)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	23,319	21,553
Stock-based compensation	162,556	133,258
Deferred income taxes	(266)	236
Other	(1,917)	(3,392)
Change in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable, net of allowance	71,870	48,697
Prepaid expenses and other current assets	271	(10,439)
Operating lease right-of-use asset	9,812	0
Other assets	(368)	4,204
Accounts payable	3,090	(37,069)
Accrued expenses and other current liabilities	(14,323)	(10,149)
Operating lease liabilities	(10,470)	0
Other liabilities	655	6,905
Net cash used in operating activities	(66,178)	(231,981)
Cash flows from investing activities
Purchases of property and equipment	(11,814)	(36,315)
Sales of property and equipment	29	0
Purchases of intangible assets	0	(60)
Non-marketable investments	(2,250)	0
Purchases of marketable securities	(525,520)	(477,213)
Sales of marketable securities	0	45,007
Maturities of marketable securities	458,627	787,828
Net cash provided by (used in) investing activities	(80,928)	319,247
Cash flows from financing activities
Proceeds from the exercise of stock options	5,596	45,809
Stock repurchases from employees for tax withholdings	0	(551)
Net cash provided by financing activities	5,596	45,258
Change in cash, cash equivalents, and restricted cash	(141,510)	132,524
Cash, cash equivalents, and restricted cash, beginning of period	388,974	337,007
Cash, cash equivalents, and restricted cash, end of period	247,464	469,531
Supplemental disclosures
Cash paid for income taxes	$ 320	$ 991

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Revenue	$ 320,426	$ 230,666
Costs and expenses:
Cost of revenue	203,767	196,798
Research and development	216,185	200,986
Sales and marketing	97,882	102,113
General and administrative	118,653	123,299
Total costs and expenses	636,487	623,196
Operating loss	(316,061)	(392,530)
Interest income	7,816	6,104
Interest expense	(756)	(934)
Other income (expense), net	(1,127)	3,153
Loss before income taxes	(310,128)	(384,207)
Income tax benefit (expense)	(279)	(1,578)
Net loss	$ (310,407)	$ (385,785)
Net loss per share attributable to Class A, Class B, and Class C common stockholders (Note 3):
Basic	$ (0.23)	$ (0.30)
Diluted	$ (0.23)	$ (0.30)
Weighted average shares used in computation of net loss per share:
Basic	1,340,615	1,270,998
Diluted	1,340,615	1,270,998

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (310,407)	$ (385,785)
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on marketable securities, net of tax	309	43
Foreign currency translation	(3,524)	6,763
Total other comprehensive income (loss), net of tax	(3,215)	6,806
Total comprehensive income (loss)	$ (313,622)	$ (378,979)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 245,639	$ 387,149
Marketable securities	963,093	891,914
Accounts receivable, net of allowance	282,407	354,965
Prepaid expenses and other current assets	41,701	41,900
Total current assets	1,532,840	1,675,928
Property and equipment, net	195,302	212,560
Operating lease right-of-use assets	284,486
Intangible assets, net	115,386	126,054
Goodwill	629,596	632,370
Other assets	68,133	67,194
Total assets	2,825,743	2,714,106
Current liabilities
Accounts payable	31,827	30,876
Operating lease liabilities	46,078
Accrued expenses and other current liabilities	244,999	261,815
Total current liabilities	322,904	292,691
Operating lease liabilities, noncurrent	329,293
Other liabilities	7,669	110,416
Total liabilities	659,866	403,107
Commitments and contingencies (Note 6)
Stockholders’ equity
Additional paid-in capital	8,388,608	8,220,417
Accumulated other comprehensive income	(68)	3,147
Accumulated deficit	(6,222,677)	(5,912,578)
Total stockholders’ equity	2,165,877	2,310,999
Total liabilities and stockholders’ equity	2,825,743	2,714,106
Class A Non-voting Common Stock
Stockholders’ equity
Common stock, value	11	10
Class B Voting Common Stock
Stockholders’ equity
Common stock, value	1	1
Class C Voting Common Stock
Stockholders’ equity
Common stock, value	$ 2	$ 2

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2019	Dec. 31, 2018
Class A Non-voting Common Stock
Common stock par value	$ 0.00001	$ 0.00001
Common stock authorized	3,000,000,000	3,000,000,000
Common stock issued	1,057,135,000	999,304,000
Common stock outstanding	1,057,135,000	999,304,000
Class B Voting Common Stock
Common stock par value	$ 0.00001	$ 0.00001
Common stock authorized	700,000,000	700,000,000
Common stock issued	51,510,000	93,846,000
Common stock outstanding	51,510,000	93,846,000
Class C Voting Common Stock
Common stock par value	$ 0.00001	$ 0.00001
Common stock authorized	260,888,000	260,888,000
Common stock issued	226,287,000	224,611,000
Common stock outstanding	226,287,000	224,611,000

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Class A Non-voting Common StockCommon Stock	Class B Voting Common StockCommon Stock	Class C Voting Common StockCommon Stock
Balance, beginning of period, shares at Dec. 31, 2017					883,022	122,564	216,616
Balance, beginning of period at Dec. 31, 2017		$ 7,634,825	$ (4,656,667)	$ 14,157	$ 9	$ 1	$ 2
Shares issued in connection with exercise of stock options under stock-based compensation plans, shares					14,447	2,882
Shares issued in connection with exercise of stock options under stock-based compensation plans		45,793
Issuance of voting/non-voting common stock for vesting of restricted stock units and restricted stock awards, shares					12,109	1,180
Conversion of stock to voting/non-voting common stock, shares					29,669	(29,669)
Issuance of Class C voting common stock for settlement of restricted stock awards net, Shares							1,619
Stock-based compensation expense		133,258
Stock repurchases from employees for tax withholdings		(551)
Net loss	$ (385,785)		(385,785)
Other comprehensive income (loss)	$ 6,806			6,806
Balance, end of period, shares at Mar. 31, 2018	1,254,439				939,247	96,957	218,235
Balance, end of period at Mar. 31, 2018	$ 2,791,848	7,813,325	(5,042,452)	20,963	$ 9	$ 1	$ 2
Balance, beginning of period, shares at Dec. 31, 2018					999,304	93,846	224,611
Balance, beginning of period at Dec. 31, 2018	2,310,999	8,220,417	(5,912,578)	3,147	$ 10	$ 1	$ 2
Shares issued in connection with exercise of stock options under stock-based compensation plans, shares					1,260	650
Shares issued in connection with exercise of stock options under stock-based compensation plans		5,635
Issuance of voting/non-voting common stock for vesting of restricted stock units and restricted stock awards, shares					13,382	203
Conversion of stock to voting/non-voting common stock, shares					43,189	(43,189)
Conversion of stock to voting/non-voting common stock					$ 1	$ 0
Issuance of Class C voting common stock for settlement of restricted stock awards net, Shares							1,676
Stock-based compensation expense		162,556
Net loss	(310,407)		(310,407)
Other comprehensive income (loss)	$ (3,215)			(3,215)
Balance, end of period, shares at Mar. 31, 2019	1,334,932				1,057,135	51,510	226,287
Balance, end of period at Mar. 31, 2019	$ 2,165,877	$ 8,388,608	(6,222,677)	$ (68)	$ 11	$ 1	$ 2
Cumulative-effect adjustment from accounting changes			$ 308

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. Summary of Significant Accounting Policies Snap Inc. is a camera company. Snap Inc. (“we,” “our,” or “us”) was formed as Future Freshman, LLC, a California limited liability company, in 2010. We changed our name to Toyopa Group, LLC in 2011, incorporated as Snapchat, Inc., a Delaware corporation, in 2012, and changed our name to Snap Inc. in 2016. Snap Inc. is headquartered in Santa Monica, California. Our flagship product, Snapchat, is a camera application that was created to help people communicate through short videos and images called “Snaps.” Basis of Presentation The accompanying unaudited consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information. Our consolidated financial statements include the accounts of Snap Inc. and our wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Our fiscal year ends on December 31. These unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2018, as filed with the SEC on February 6, 2019 (the “Annual Report”). In our opinion, the unaudited interim consolidated financial statements include all adjustments of a normal recurring nature necessary for the fair presentation of our financial position, results of operations, and cash flows. The results of operations for the three months ended March 31, 2019 are not necessarily indicative of the results to be expected for the year ending December 31, 2019. Other than described below, there have been no changes to our significant accounting policies described in our Annual Report that have had a material impact on our consolidated financial statements and related notes. Use of Estimates The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial statements. Management’s estimates are based on historical information available as of the date of the consolidated financial statements and various other assumptions that we believe are reasonable under the circumstances. Actual results could differ from those estimates. Key estimates relate primarily to determining the fair value of assets and liabilities assumed in business combinations, evaluation of contingencies, uncertain tax positions, excess inventory reserves, lease exit charges, forfeiture rate, and the fair value of stock-based awards. On an ongoing basis, management evaluates our estimates compared to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities. Recent Accounting Pronouncements In August 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-15, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) Leases (Topic 842): Targeted Improvements

Revenue

Revenue	3 Months Ended
	Mar. 31, 2019
Revenue From Contract With Customer [Abstract]
Revenue	2. Revenue Revenue is recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to receive in exchange for those goods or services. We determine collectability by performing ongoing credit evaluations and monitoring customer accounts receivable balances. Sales tax is excluded from reported revenue. We generate substantially all of our revenues by offering various advertising products on Snapchat, which include Snap Ads and Sponsored Creative Tools, and measurement services, referred to as advertising revenue. Sponsored Creative Tools include Sponsored Geofilters and Sponsored Lenses. Sponsored Geofilters allow users to interact with an advertiser’s brand by enabling stylized brand artwork to be overlaid on a Snap. Sponsored Lenses allow users to interact with an advertiser’s brand by enabling branded augmented reality experiences. The substantial majority of advertising revenue is generated from the display of advertisements on Snapchat through contractual agreements that are either on a fixed fee basis over a period of time or based on the number of advertising impressions delivered. Revenue related to agreements based on the number of impressions delivered is recognized when the advertisement is displayed. Revenue related to fixed fee arrangements is recognized ratably over the service period, typically less than 30 days in duration, and such arrangements do not contain minimum impression guarantees. In determining whether an arrangement exists, we ensure that an agreement, such as an insertion order or self-serve terms, have been fully executed or accepted electronically. We sell advertising directly to advertisers (“Snap-sold” revenue) and certain partners that provide content on Snapchat (“content partners”) also sell directly to advertisers (“partner-sold” revenue). Snap Ads may be subject to revenue sharing agreements between us and our content partners. Our Sponsored Creative Tools and measurement services are only Snap-sold and are not subject to revenue sharing arrangements. Snap-sold revenue is recognized based on the gross amount that we charge the advertiser. Partner-sold revenue is recognized based on the net amount of revenue to be received from the content partners. We recognize Snap-sold revenue on a gross basis predominantly because we are the primary obligor responsible for fulfilling advertisement delivery, including the acceptability of the services delivered. For Snap-sold advertising, we enter into contractual arrangements directly with advertisers. We are directly responsible for the fulfillment of the contractual terms and any remedy for issues with such fulfillment. For Snap-sold revenue, we also have latitude in establishing the selling price with the advertiser, as we sell advertisements at a rate determined at our sole discretion. We recognize partner-sold revenue on a net basis predominantly because the content partner, and not Snap, is the primary obligor responsible for fulfillment, including the acceptability of the services delivered. In partner-sold advertising arrangements, the content partner has a direct contractual relationship with the advertiser. There is no contractual relationship between us and the advertiser for partner-sold transactions. When a content partner sells advertisements, the content partner is responsible for fulfilling the advertisements, and accordingly, we have determined the content partner is the primary obligor. Additionally, we do not have any latitude in establishing the price with the advertiser for partner-sold advertising. The content partner may sell advertisements at a rate determined at its sole discretion. For the periods presented, partner-sold revenue was not material. We also generate revenue from sales of our hardware product, Spectacles. For the periods presented, revenue from the sales of Spectacles was not material. The following table represents our revenue disaggregated by geography based on the billing address of the advertising customer: Three Months Ended March 31, 2019 2018 (in thousands) Revenue: North America (1) (2) $ 195,958 $ 166,939 Europe (3) 56,581 30,825 Rest of world 67,887 32,902 Total revenue $ 320,426 $ 230,666 (1) North America includes Mexico, the Caribbean, and Central America. (2) United States revenue was $188.8 million and $161.0 million for the three months ended March 31, 2019 and 2018, respectively. (3) Europe includes Russia and Turkey.

Net Loss per Share

Net Loss per Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Net Loss per Share	3. Net Loss per Share We compute net loss per share using the two-class method required for multiple classes of common stock. Our participating securities include any shares issued on the early exercise of stock options subject to repurchase because holders of such shares have non-forfeitable dividend rights in the event a dividend is paid on common stock. In March 2017, we completed our initial public offering (“IPO”) in which we issued and sold 160.3 million shares of Class A common stock, inclusive of the over-allotment. In addition, on the closing of the IPO, our Chief Executive Officer (“CEO”) received an RSU award (“CEO award”) for 37.4 million shares of Series FP preferred stock, which was fully vested on grant and automatically converted into an equivalent number of shares of Class C common stock on the closing of the IPO. Basic net loss per share is computed by dividing net loss attributable to each class of stockholders by the weighted-average number of such class of shares of stock outstanding during the period. Vested restricted stock units (“RSUs”) that have not been settled, including the vested CEO award, and restricted stock awards (“RSAs”) for which the risk of forfeiture has lapsed have been included in the appropriate common share class used to calculate basic net loss per share. For the calculation of diluted net loss per share, net loss per share attributable to common stockholders for basic net loss per share is adjusted by the effect of dilutive securities, including awards under our equity compensation plans. Diluted net loss per share attributable to common stockholders is computed by dividing the resulting net loss attributable to common stockholders by the weighted-average number of fully diluted common shares outstanding. For the three months ended March 31, 2019 and 2018, our potentially dilutive shares relating to stock options, RSUs, RSAs, and common stock subject to repurchase, were not included in the computation of diluted net loss per share as the effect of including these shares in the calculation would have been anti-dilutive. The numerators and denominators of the basic and diluted net loss per share computations for our common stock are calculated as follows for the three months ended March 31, 2019 and 2018: Three Months Ended March 31, 2019 2018 (in thousands, except per share data) Class A Common Class B Common Class C Common Class A Common Class B Common Class C Common Numerator: Net loss $ (239,860 ) $ (13,601 ) $ (56,946 ) $ (276,790 ) $ (32,989 ) $ (76,006 ) Net loss attributable to common stockholders $ (239,860 ) $ (13,601 ) $ (56,946 ) $ (276,790 ) $ (32,989 ) $ (76,006 ) Denominator: Basic shares: Weighted-average common shares - Basic 1,035,932 58,741 245,942 911,906 108,683 250,409 Diluted shares: Weighted-average common shares - Diluted 1,035,932 58,741 245,942 911,906 108,683 250,409 Net loss per share attributable to common stockholders: Basic $ (0.23 ) $ (0.23 ) $ (0.23 ) $ (0.30 ) $ (0.30 ) $ (0.30 ) Diluted $ (0.23 ) $ (0.23 ) $ (0.23 ) $ (0.30 ) $ (0.30 ) $ (0.30 ) The following potentially dilutive shares were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented: Three Months Ended March 31, 2019 2018 (in thousands) Stock options 13,382 16,486 Unvested RSUs and RSAs not subject to a performance condition 181,321 152,987

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stockholders' Equity	4. Stockholders’ Equity We maintain three share-based employee compensation plans: the 2017 Equity Incentive Plan (“2017 Plan”), the 2014 Equity Incentive Plan (“2014 Plan”), and the 2012 Equity Incentive Plan (“2012 Plan”, and collectively with the 2017 Plan and the 2014 Plan, the “Stock Plans”). In January 2017, our board of directors adopted the 2017 Plan, and in February 2017 our stockholders approved the 2017 Plan, effective on March 1, 2017, which serves as the successor to the 2014 Plan and 2012 Plan and provides for the grant of incentive stock options to employees, including employees of any parent or subsidiary, and for the grant of nonstatutory stock options, stock appreciation rights, RSAs, RSUs, performance stock awards, performance cash awards, and other forms of stock awards to employees, directors, and consultants, including employees and consultants of our affiliates. Restricted Stock Units The following table summarizes the RSU activity during the three months ended March 31, 2019: Class A Outstanding RSUs Class B Outstanding RSUs Weighted- Average Grant Date Fair Value per RSU (in thousands, except per share data) Unvested at December 31, 2018 149,638 492 $ 13.34 Granted 50,941 — $ 8.50 Vested (14,343 ) (382 ) $ 13.93 Forfeited (11,496 ) (1 ) $ 13.32 Unvested at March 31, 2019 174,740 109 $ 11.89 RSUs granted to employees before January 1, 2017 (“Pre-2017 RSUs”) included both service-based and performance conditions to vest in the underlying common stock. The performance condition related to Pre-2017 RSUs was satisfied on the effectiveness of the registration statement for our IPO, which occurred in March 2017. Total unrecognized compensation cost related to Pre-2017 RSUs was $140.0 million as of March 31, 2019 and is expected to be recognized over a weighted-average period of 1.5 years. All RSUs granted after December 31, 2016 vest on the satisfaction of only a service-based condition (“Post-2017 RSUs”). Total unrecognized compensation cost related to Post-2017 RSUs was $1.4 billion as of March 31, 2019 and is expected to be recognized over a weighted-average period of 3.1 years. The service condition for Post-2017 RSUs granted prior to February 2018 is generally satisfied over four years, 10% after the first year of service, 20% over the second year, 30% over the third year, and 40% over the fourth year. In limited instances, we have issued Post-2017 RSUs with vesting periods in excess of four years. The service condition for Post-2017 RSUs granted after February 2018 is generally satisfied in equal monthly installments over four years. Additionally, we have 20.8 million and 22.4 million RSUs that are vested but have not yet settled as of March 31, 2019 and December 31, 2018, respectively. These RSUs are primarily related to the CEO award. Restricted Stock Awards The following table summarizes the RSA activity during the three months ended March 31, 2019: Class A Outstanding RSAs Weighted- Average Grant Date Fair Value per RSA (in thousands, except per share data) Unvested at December 31, 2018 8,134 $ 7.51 Granted — $ — Vested (546 ) $ 8.44 Forfeited (1,115 ) $ 5.58 Unvested at March 31, 2019 6,473 $ 7.77 The total fair value of RSAs vested during the three months ended March 31, 2019 and 2018 was $4.6 million and $1.6 million, respectively. Total unrecognized compensation cost related to RSAs was $48.4 million as of March 31, 2019 and is expected to be recognized over a weighted-average period of 3.3 years. Stock Options The following table summarizes the stock option award activity under the Stock Plans during the three months ended March 31, 2019: Class A Number of Shares Class B Number of Shares Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) (in thousands, except per share data) Outstanding at December 31, 2018 13,322 2,969 $ 7.83 6.41 $ 34,567 Granted — — $ — — $ — Exercised (1,260 ) (651 ) $ 2.93 — $ — Forfeited (969 ) (29 ) $ 13.58 — $ — Outstanding at March 31, 2019 11,093 2,289 $ 8.10 5.98 $ 61,054 (1) The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the closing market price of our Class A common stock as of December 31, 2018 and March 31, 2019, respectively. Total unrecognized compensation cost related to unvested stock options granted was $32.3 million as of March 31, 2019 Stock-Based Compensation Expense by Function Total stock-based compensation expense by function was as follows: Three Months Ended March 31, 2019 2018 (in thousands) Cost of revenue $ 1,849 $ 276 Research and development 112,242 77,815 Sales and marketing 17,760 16,185 General and administrative 30,705 38,982 Total $ 162,556 $ 133,258

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	5. Goodwill and Intangible Assets The changes in the carrying amount of goodwill for the three months ended March 31, 2019 were as follows: Goodwill (in thousands) Balance as of December 31, 2018 $ 632,370 Foreign currency translation (2,774 ) Balance as of March 31, 2019 $ 629,596 Intangible assets consisted of the following: March 31, 2019 Weighted- Average Remaining Useful Life - Years Gross Carrying Amount Accumulated Amortization Net (in thousands, except years) Domain names 1.5 $ 5,414 $ 4,554 $ 860 Trademarks 1.2 5,772 4,407 1,365 Acquired developed technology 3.6 179,330 86,899 92,431 Customer relationships 2.0 15,572 8,893 6,679 Patents 6.6 19,710 5,659 14,051 $ 225,798 $ 110,412 $ 115,386 December 31, 2018 Weighted- Average Remaining Useful Life - Years Gross Carrying Amount Accumulated Amortization Net (in thousands except years) Domain names 1.6 5,414 $ 4,283 $ 1,131 Trademarks 1.4 5,772 4,076 1,696 Acquired developed technology 3.8 179,791 78,729 101,062 Customer relationships 2.1 15,572 8,012 7,560 Patents 6.9 19,710 5,105 14,605 $ 226,259 $ 100,205 $ 126,054 Amortization of intangible assets was $10.4 million and $10.8 million for the three months ended March 31, 2019 and 2018, respectively. As of March 31, 2019, the estimated intangible asset amortization expense for the next five years and thereafter is as follows: Estimated Amortization (in thousands) Remainder of 2019 $ 28,229 2020 32,113 2021 25,050 2022 15,411 2023 8,378 Thereafter 6,205 Total $ 115,386

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	6. Commitments and Contingencies Commitments We have non-cancelable contractual agreements related to the hosting of our data storage processing, storage, and other computing services. In January 2017, we entered into the Google Cloud Platform License Agreement, which was amended in September 2017, December 2017, January 2018, and November 2018. Under the agreement, we were granted a license to access and use certain cloud services. The agreement has an initial term of five years and we are required to purchase at least $400.0 million of cloud services in each year of the agreement. For each of the first four years, up to 15% of this amount may be moved to a subsequent year. If we fail to meet the minimum purchase commitment during any year, we are required to pay the difference. In March 2016, we entered into the AWS Enterprise Agreement for the use of cloud services from Amazon Web Services, Inc. (“AWS”), which was amended in March 2016 and again in February 2017. The agreement will continue indefinitely until terminated by either party. Under the February 2017 addendum to the agreement, we committed to spend $1.0 billion between January 2017 and December 2021. That addendum was amended in October 2018, and we are now committed to spend an aggregate of $1.1 billion between January 2017 and December 2022 on AWS services ($90.0 million in 2018, $150.0 million in 2019, $215.0 million in 2020, $280.0 million in 2021, and $349.0 million in 2022). If we fail to meet the minimum purchase commitment during any year, we are required to pay the difference. Any such payment may be applied to future use of AWS services during the addendum term, although it will not count towards meeting the future minimum purchase commitments under the addendum. The future minimum contractual commitment including commitments less than one year, as of March 31, 2019, for each of the next five years are as follows: Minimum Commitment (in thousands) Remainder of 2019 $ 447,589 2020 627,007 2021 681,143 2022 382,333 2023 — Thereafter — Total minimum commitments $ 2,138,072 Contingencies We record a loss contingency when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. We also disclose material contingencies when we believe a loss is not probable but reasonably possible. Accounting for contingencies requires us to use judgment related to both the likelihood of a loss and the estimate of the amount or range of loss. Many legal and tax contingencies can take years to be resolved. Pending Matters Beginning in May 2017, we, certain of our officers and directors, and the underwriters for our IPO were named as defendants in securities class actions purportedly brought on behalf of purchasers of our Class A common stock, alleging violation of securities laws in connection with our IPO. Management believes these lawsuits are without merit and intend to vigorously defend them. Based on the preliminary nature of the proceedings in this case, the outcome of this matter remains uncertain. On April 3, 2018, BlackBerry Limited filed a lawsuit against us alleging that we infringe six of its patents. We are currently investigating BlackBerry’s allegations, and management believes we have meritorious defenses. Based on the preliminary nature of the proceedings, the outcome of this matter remains uncertain. In 2017, Vaporstream, Inc. filed a lawsuit against us alleging that we infringe a number of its patents. We filed a motion to dismiss, which the court denied without prejudice to re-file after further factual development. Later in 2017, we filed a motion for summary judgment. On February 27, 2018, the court issued an order denying our motion for summary judgment. On June 13, 2018, the court stayed the lawsuit pending the outcome of several challenges to the validity of the patents, filed by us at the U.S. Patent and Trademark Office. While management believes we have meritorious defenses to Vaporstream’s claims, the outcome of this matter remains uncertain. The outcomes of our legal proceedings are inherently unpredictable, subject to significant uncertainties, and could be material to our financial condition, results of operations, and cash flows for a particular period. For the pending matters described above, it is not possible to estimate the reasonably possible loss or range of loss. We are subject to various other legal proceedings and claims in the ordinary course of business, including certain patent, trademark, privacy, regulatory, and employment matters. Although occasional adverse decisions or settlements may occur, we do not believe that the final disposition of any of our other pending matters will seriously harm our business, financial condition, results of operations, and cash flows. Indemnifications In the ordinary course of business, we may provide indemnifications of varying scope and terms to customers, vendors, lessors, investors, directors, officers, employees, and other parties with respect to certain matters. Indemnification may include losses from our breach of such agreements, services we provide, or third party intellectual property infringement claims. These indemnifications may survive termination of the underlying agreement and the maximum potential amount of future indemnification payments may not be subject to a cap. We have not incurred material costs to defend lawsuits or settle claims related to these indemnifications as of March 31, 2019. We believe the fair value of these liabilities is immaterial and accordingly have no liabilities recorded for these agreements at March 31, 2019.

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases	7. Leases We have various non-cancelable lease agreements for certain of our offices with original lease periods expiring between 2019 and 2029. Our lease terms may include options to extend or terminate the lease when it is reasonably certain we will exercise that option. Certain of the arrangements have free rent periods or escalating rent payment provisions. Leases with an initial term of twelve months or less are not recorded on the consolidated balance sheets. We recognize rent expense on a straight-line basis over the lease term. Additionally, we sublease certain operating leases to third parties primarily as a result of moving to a centralized corporate office in Santa Monica, California in 2018. Lease Cost The components of lease cost were as follows: Three Months Ended March 31, 2019 (in thousands) Operating lease expense $ 13,681 Sublease income (925 ) Total net lease costs $ 12,756 Lease Term and Discount Rate The weighted-average remaining lease term (in years) and discount rate related to the operating leases were as follows: Three Months Ended March 31, 2019 Weighted-average remaining lease term 7.3 Weighted-average discount rate 6.2 % As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the lease commencement date to determine the present value of lease payments. Maturity of Lease Liabilities The present value of our operating lease liabilities as of March 31, 2019 were as follows: Operating Leases (in thousands) Remainder of 2019 $ 50,778 2020 67,626 2021 66,495 2022 59,443 2023 57,828 Thereafter 168,038 Total lease payments $ 470,208 Less: Imputed interest (94,837 ) Present value of lease liabilities $ 375,371 In 2018, we exited various operating leases prior to the end of the contractual lease term, primarily as a result of moving to a centralized corporate office located in Santa Monica, California. The charges, recorded as general and administrative expenses, primarily included the present value of our remaining lease obligation on the cease use dates that occurred during the period, net of estimated sublease income. As of December 31, 2018, we exited all properties associated with this event. On January 1, 2019, under the transition provisions of ASU 2016-02 (Topic 842), we adjusted the initial measurement of the lease asset related to the lease exit properties by $32.1 million which represents the carrying amount of the associated lease exit liability as of December 31, 2018. Changes to our estimated sublease income, including actual contracted sublease income, may result in impairment of the right-of-use asset in the period determined. Prior to January 1, 2019, we had several lease agreements where we were deemed the owner under build-to-suit lease accounting. The value of the leased property and corresponding financing obligations was included in property and equipment, net and other liabilities, respectively, on our consolidated balance sheets as of December 31, 2018. Net assets capitalized under build-to-suit leases were $48.4 million as of December 31, 2018. As part of the adoption of Topic 842, we derecognized those assets and liabilities and recorded the difference as an adjustment to accumulated deficit at January 1, 2019. These leases are included within the right-of-use asset and lease liability balances on our consolidated balance sheets as of March 31, 2019. Other Information Cash payments included in the measurement of our o perating lease liabilities were $16.4 million for the three months ended March 31, 2019.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	8. Fair Value Measurements Assets and liabilities measured at fair value are classified into the following categories: • Level 1: Quoted market prices in active markets for identical assets or liabilities. • Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data. • Level 3: Unobservable inputs reflecting the reporting entity’s own assumptions or external inputs from inactive markets. We classify our cash equivalents and marketable securities within Level 1 or Level 2 because we use quoted market prices or alternative pricing sources and models utilizing market observable inputs to determine their fair value. There were no transfers between levels during the periods presented. The following tables set forth our financial assets as of March 31, 2019 and December 31, 2018 that are measured at fair value on a recurring basis during the period: March 31, 2019 Cost or Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Total Estimated Fair Value (in thousands) Cash $ 210,507 $ — $ — $ 210,507 Level 1 securities: U.S. government securities 728,749 208 (27 ) 728,930 U.S. government agency securities 167,044 15 (31 ) 167,028 Level 2 securities: Corporate debt securities 28,931 31 — 28,962 Commercial paper 46,215 — — 46,215 Certificates of deposit 27,090 — — 27,090 Total $ 1,208,536 $ 254 $ (58 ) $ 1,208,732 December 31, 2018 Cost or Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Total Estimated Fair Value (in thousands) Cash $ 279,950 $ — $ — $ 279,950 Level 1 securities: U.S. government securities 735,988 12 (175 ) 735,825 U.S. government agency securities 181,032 4 (36 ) 181,000 Level 2 securities: Corporate debt securities 35,819 1 (18 ) 35,802 Commercial paper 33,193 — — 33,193 Certificates of deposit 13,293 — — 13,293 Total $ 1,279,275 $ 17 $ (229 ) $ 1,279,063 Gross unrealized losses in a continuous loss position for 12 months or longer are not material as of March 31, 2019 and December 31, 2018, respectively. As of March 31, 2019, we considered the decreases in market value on our marketable securities to be temporary in nature and did not consider any of our investments to be other-than-temporarily impaired. All of our marketable securities have contractual maturities of less than one year.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	9. Income Taxes Our tax provision for interim periods is determined using an estimate of our annual effective tax rate, adjusted for discrete items arising in that quarter. Our effective tax rate differs from the U.S. statutory tax rate primarily due to valuation allowances on our deferred tax assets as it is more likely than not that some or all of our deferred tax assets will not be realized. Income tax expense was $0.3 million and $1.6 million for the three months ended March 31, 2019 and 2018, respectively.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2019
Accumulated Other Comprehensive Income Loss [Abstract]
Accumulated Other Comprehensive Income (Loss)	10. Accumulated Other Comprehensive Income (Loss) The table below presents the changes in accumulated other comprehensive income (loss) (“AOCI”) by component and the reclassifications out of AOCI: Changes in Accumulated Other Comprehensive Income (Loss) by Component Marketable Securities Foreign Currency Translation Total (in thousands) Balance at December 31, 2018 $ (368 ) $ 3,515 $ 3,147 OCI before reclassifications (1) 309 (3,524 ) (3,215 ) Amounts reclassified from AOCI (2) — — — Net current period OCI 309 (3,524 ) (3,215 ) Balance at March 31, 2019 $ (59 ) $ (9 ) $ (68 ) (1) Net of tax expense of $0.1 million for gains / losses on marketable securities. (2) Realized gains and losses on marketable securities are reclassified from AOCI into other income (expense), net in the consolidated statements of operations.

Property and Equipment, Net

Property and Equipment, Net	3 Months Ended
	Mar. 31, 2019
Property Plant And Equipment [Abstract]
Property and Equipment, Net	11. Property and Equipment, Net The following table lists property and equipment, net by geographic area: As of March 31, 2019 As of December 31, 2018 (in thousands) Property and equipment, net: United States $ 174,961 $ 190,412 Rest of world (1) 20,341 22,148 Total property and equipment, net $ 195,302 $ 212,560 (1) No individual country exceeded 10% of our total property and equipment, net for any period presented.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information. Our consolidated financial statements include the accounts of Snap Inc. and our wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Our fiscal year ends on December 31. These unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2018, as filed with the SEC on February 6, 2019 (the “Annual Report”). In our opinion, the unaudited interim consolidated financial statements include all adjustments of a normal recurring nature necessary for the fair presentation of our financial position, results of operations, and cash flows. The results of operations for the three months ended March 31, 2019 are not necessarily indicative of the results to be expected for the year ending December 31, 2019. Other than described below, there have been no changes to our significant accounting policies described in our Annual Report that have had a material impact on our consolidated financial statements and related notes.
Use of Estimates	Use of Estimates The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the consolidated financial statements. Management’s estimates are based on historical information available as of the date of the consolidated financial statements and various other assumptions that we believe are reasonable under the circumstances. Actual results could differ from those estimates. Key estimates relate primarily to determining the fair value of assets and liabilities assumed in business combinations, evaluation of contingencies, uncertain tax positions, excess inventory reserves, lease exit charges, forfeiture rate, and the fair value of stock-based awards. On an ongoing basis, management evaluates our estimates compared to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In August 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-15, Intangibles — Goodwill and Other — Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) Leases (Topic 842): Targeted Improvements

Revenue (Tables)

Revenue (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue From Contract With Customer [Abstract]
Disaggregation of Revenue by Geography	The following table represents our revenue disaggregated by geography based on the billing address of the advertising customer: Three Months Ended March 31, 2019 2018 (in thousands) Revenue: North America (1) (2) $ 195,958 $ 166,939 Europe (3) 56,581 30,825 Rest of world 67,887 32,902 Total revenue $ 320,426 $ 230,666 (1) North America includes Mexico, the Caribbean, and Central America. (2) United States revenue was $188.8 million and $161.0 million for the three months ended March 31, 2019 and 2018, respectively. (3) Europe includes Russia and Turkey.

Net Loss per Share (Tables)

Net Loss per Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Numerators and Denominators of Basic and Diluted Net Loss per Share Computations for Common Stock	The numerators and denominators of the basic and diluted net loss per share computations for our common stock are calculated as follows for the three months ended March 31, 2019 and 2018: Three Months Ended March 31, 2019 2018 (in thousands, except per share data) Class A Common Class B Common Class C Common Class A Common Class B Common Class C Common Numerator: Net loss $ (239,860 ) $ (13,601 ) $ (56,946 ) $ (276,790 ) $ (32,989 ) $ (76,006 ) Net loss attributable to common stockholders $ (239,860 ) $ (13,601 ) $ (56,946 ) $ (276,790 ) $ (32,989 ) $ (76,006 ) Denominator: Basic shares: Weighted-average common shares - Basic 1,035,932 58,741 245,942 911,906 108,683 250,409 Diluted shares: Weighted-average common shares - Diluted 1,035,932 58,741 245,942 911,906 108,683 250,409 Net loss per share attributable to common stockholders: Basic $ (0.23 ) $ (0.23 ) $ (0.23 ) $ (0.30 ) $ (0.30 ) $ (0.30 ) Diluted $ (0.23 ) $ (0.23 ) $ (0.23 ) $ (0.30 ) $ (0.30 ) $ (0.30 )
Schedule of Potentially Dilutive Shares Excluded from Calculation of Diluted Net Loss per Share	The following potentially dilutive shares were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented: Three Months Ended March 31, 2019 2018 (in thousands) Stock options 13,382 16,486 Unvested RSUs and RSAs not subject to a performance condition 181,321 152,987

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2019
Summary of Stock Option Award Activity	The following table summarizes the stock option award activity under the Stock Plans during the three months ended March 31, 2019: Class A Number of Shares Class B Number of Shares Weighted- Average Exercise Price Weighted- Average Remaining Contractual Term (in years) Aggregate Intrinsic Value (1) (in thousands, except per share data) Outstanding at December 31, 2018 13,322 2,969 $ 7.83 6.41 $ 34,567 Granted — — $ — — $ — Exercised (1,260 ) (651 ) $ 2.93 — $ — Forfeited (969 ) (29 ) $ 13.58 — $ — Outstanding at March 31, 2019 11,093 2,289 $ 8.10 5.98 $ 61,054 (1) The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock option awards and the closing market price of our Class A common stock as of December 31, 2018 and March 31, 2019, respectively.
Summary of Total Stock-based Compensation Expense	Total stock-based compensation expense by function was as follows: Three Months Ended March 31, 2019 2018 (in thousands) Cost of revenue $ 1,849 $ 276 Research and development 112,242 77,815 Sales and marketing 17,760 16,185 General and administrative 30,705 38,982 Total $ 162,556 $ 133,258
Restricted Stock Units
Summary of RSU and RSA Award Activity	Restricted Stock Units The following table summarizes the RSU activity during the three months ended March 31, 2019: Class A Outstanding RSUs Class B Outstanding RSUs Weighted- Average Grant Date Fair Value per RSU (in thousands, except per share data) Unvested at December 31, 2018 149,638 492 $ 13.34 Granted 50,941 — $ 8.50 Vested (14,343 ) (382 ) $ 13.93 Forfeited (11,496 ) (1 ) $ 13.32 Unvested at March 31, 2019 174,740 109 $ 11.89
Restricted Stock Awards
Summary of RSU and RSA Award Activity	The following table summarizes the RSA activity during the three months ended March 31, 2019: Class A Outstanding RSAs Weighted- Average Grant Date Fair Value per RSA (in thousands, except per share data) Unvested at December 31, 2018 8,134 $ 7.51 Granted — $ — Vested (546 ) $ 8.44 Forfeited (1,115 ) $ 5.58 Unvested at March 31, 2019 6,473 $ 7.77

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill for the three months ended March 31, 2019 were as follows: Goodwill (in thousands) Balance as of December 31, 2018 $ 632,370 Foreign currency translation (2,774 ) Balance as of March 31, 2019 $ 629,596
Schedule of Intangible Assets	Intangible assets consisted of the following: March 31, 2019 Weighted- Average Remaining Useful Life - Years Gross Carrying Amount Accumulated Amortization Net (in thousands, except years) Domain names 1.5 $ 5,414 $ 4,554 $ 860 Trademarks 1.2 5,772 4,407 1,365 Acquired developed technology 3.6 179,330 86,899 92,431 Customer relationships 2.0 15,572 8,893 6,679 Patents 6.6 19,710 5,659 14,051 $ 225,798 $ 110,412 $ 115,386 December 31, 2018 Weighted- Average Remaining Useful Life - Years Gross Carrying Amount Accumulated Amortization Net (in thousands except years) Domain names 1.6 5,414 $ 4,283 $ 1,131 Trademarks 1.4 5,772 4,076 1,696 Acquired developed technology 3.8 179,791 78,729 101,062 Customer relationships 2.1 15,572 8,012 7,560 Patents 6.9 19,710 5,105 14,605 $ 226,259 $ 100,205 $ 126,054
Schedule of Estimated Intangible Asset Amortization Expense	As of March 31, 2019, the estimated intangible asset amortization expense for the next five years and thereafter is as follows: Estimated Amortization (in thousands) Remainder of 2019 $ 28,229 2020 32,113 2021 25,050 2022 15,411 2023 8,378 Thereafter 6,205 Total $ 115,386

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Schedule of Future Minimum Contractual Commitments	The future minimum contractual commitment including commitments less than one year, as of March 31, 2019, for each of the next five years are as follows: Minimum Commitment (in thousands) Remainder of 2019 $ 447,589 2020 627,007 2021 681,143 2022 382,333 2023 — Thereafter — Total minimum commitments $ 2,138,072

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Components of Lease Cost	The components of lease cost were as follows: Three Months Ended March 31, 2019 (in thousands) Operating lease expense $ 13,681 Sublease income (925 ) Total net lease costs $ 12,756
Summary of Weighted Average Remaining Lease Term and Discount Rate Related to Operating Leases	Lease Term and Discount Rate The weighted-average remaining lease term (in years) and discount rate related to the operating leases were as follows: Three Months Ended March 31, 2019 Weighted-average remaining lease term 7.3 Weighted-average discount rate 6.2 %
Present Value of Operating Lease Liabilities	Maturity of Lease Liabilities The present value of our operating lease liabilities as of March 31, 2019 were as follows: Operating Leases (in thousands) Remainder of 2019 $ 50,778 2020 67,626 2021 66,495 2022 59,443 2023 57,828 Thereafter 168,038 Total lease payments $ 470,208 Less: Imputed interest (94,837 ) Present value of lease liabilities $ 375,371

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Summary of Financial Assets Measured at Fair Value on Recurring Basis	The following tables set forth our financial assets as of March 31, 2019 and December 31, 2018 that are measured at fair value on a recurring basis during the period: March 31, 2019 Cost or Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Total Estimated Fair Value (in thousands) Cash $ 210,507 $ — $ — $ 210,507 Level 1 securities: U.S. government securities 728,749 208 (27 ) 728,930 U.S. government agency securities 167,044 15 (31 ) 167,028 Level 2 securities: Corporate debt securities 28,931 31 — 28,962 Commercial paper 46,215 — — 46,215 Certificates of deposit 27,090 — — 27,090 Total $ 1,208,536 $ 254 $ (58 ) $ 1,208,732 December 31, 2018 Cost or Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Total Estimated Fair Value (in thousands) Cash $ 279,950 $ — $ — $ 279,950 Level 1 securities: U.S. government securities 735,988 12 (175 ) 735,825 U.S. government agency securities 181,032 4 (36 ) 181,000 Level 2 securities: Corporate debt securities 35,819 1 (18 ) 35,802 Commercial paper 33,193 — — 33,193 Certificates of deposit 13,293 — — 13,293 Total $ 1,279,275 $ 17 $ (229 ) $ 1,279,063

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2019
Accumulated Other Comprehensive Income Loss [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income (Loss)	The table below presents the changes in accumulated other comprehensive income (loss) (“AOCI”) by component and the reclassifications out of AOCI: Changes in Accumulated Other Comprehensive Income (Loss) by Component Marketable Securities Foreign Currency Translation Total (in thousands) Balance at December 31, 2018 $ (368 ) $ 3,515 $ 3,147 OCI before reclassifications (1) 309 (3,524 ) (3,215 ) Amounts reclassified from AOCI (2) — — — Net current period OCI 309 (3,524 ) (3,215 ) Balance at March 31, 2019 $ (59 ) $ (9 ) $ (68 ) (1) Net of tax expense of $0.1 million for gains / losses on marketable securities. (2) Realized gains and losses on marketable securities are reclassified from AOCI into other income (expense), net in the consolidated statements of operations.

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	3 Months Ended
	Mar. 31, 2019
Property Plant And Equipment [Abstract]
Property and Equipment, Net by Geographic Area	The following table lists property and equipment, net by geographic area: As of March 31, 2019 As of December 31, 2018 (in thousands) Property and equipment, net: United States $ 174,961 $ 190,412 Rest of world (1) 20,341 22,148 Total property and equipment, net $ 195,302 $ 212,560 (1) No individual country exceeded 10% of our total property and equipment, net for any period presented.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	Mar. 31, 2019USD ($)
Summary Of Significant Accounting Policies [Line Items]
Operating lease right-of-use assets	$ 284,486
Operating lease, liability	375,371
ASU 2016-02
Summary Of Significant Accounting Policies [Line Items]
Operating lease right-of-use assets	284,500
Operating lease, liability	$ 375,400

Revenue - Disaggregation of Rev

Revenue - Disaggregation of Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Total revenue	$ 320,426	$ 230,666
North America
Disaggregation Of Revenue [Line Items]
Total revenue	195,958	166,939
Europe
Disaggregation Of Revenue [Line Items]
Total revenue	56,581	30,825
Rest of World
Disaggregation Of Revenue [Line Items]
Total revenue	$ 67,887	$ 32,902

Revenue - Disaggregation of R_2

Revenue - Disaggregation of Revenue by Geography (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation Of Revenue [Line Items]
Total revenue	$ 320,426	$ 230,666
United States
Disaggregation Of Revenue [Line Items]
Total revenue	$ 188,800	$ 161,000

Net Loss per Share - Additional

Net Loss per Share - Additional Information (Details) - IPO shares in Millions	1 Months Ended
	Mar. 31, 2017shares
Class A Common Stock
Earnings Per Share [Line Items]
Common stock, shares issued and sold	160.3
Series FP Preferred Stock | Class C Common Stock | Chief Executive Officer | Restricted Stock Units
Earnings Per Share [Line Items]
Conversion of convertible preferred stock into common stock	37.4

Net Loss per Share - Numerators

Net Loss per Share - Numerators and Denominators of Basic and Diluted Net Loss per Share Computations for Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator:
Net loss	$ (310,407)	$ (385,785)
Basic shares:
Weighted-average common shares - Basic	1,340,615	1,270,998
Diluted shares:
Weighted-average common shares - Diluted	1,340,615	1,270,998
Net loss per share attributable to common stockholders:
Basic	$ (0.23)	$ (0.30)
Diluted	$ (0.23)	$ (0.30)
Class A Common Stock
Numerator:
Net loss	$ (239,860)	$ (276,790)
Net loss attributable to common stockholders	$ (239,860)	$ (276,790)
Basic shares:
Weighted-average common shares - Basic	1,035,932	911,906
Diluted shares:
Weighted-average common shares - Diluted	1,035,932	911,906
Net loss per share attributable to common stockholders:
Basic	$ (0.23)	$ (0.30)
Diluted	$ (0.23)	$ (0.30)
Class B Common Stock
Numerator:
Net loss	$ (13,601)	$ (32,989)
Net loss attributable to common stockholders	$ (13,601)	$ (32,989)
Basic shares:
Weighted-average common shares - Basic	58,741	108,683
Diluted shares:
Weighted-average common shares - Diluted	58,741	108,683
Net loss per share attributable to common stockholders:
Basic	$ (0.23)	$ (0.30)
Diluted	$ (0.23)	$ (0.30)
Class C Common Stock
Numerator:
Net loss	$ (56,946)	$ (76,006)
Net loss attributable to common stockholders	$ (56,946)	$ (76,006)
Basic shares:
Weighted-average common shares - Basic	245,942	250,409
Diluted shares:
Weighted-average common shares - Diluted	245,942	250,409
Net loss per share attributable to common stockholders:
Basic	$ (0.23)	$ (0.30)
Diluted	$ (0.23)	$ (0.30)

Net Loss per Share - Schedule o

Net Loss per Share - Schedule of Potentially Dilutive Shares Excluded from Calculation of Diluted Net Loss per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Unvested RSUs and RSAs Not Subject to a Performance Condition
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from calculation of diluted net loss per share	181,321	152,987
Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from calculation of diluted net loss per share	13,382	16,486

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Details) shares in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019USD ($)Planshares	Mar. 31, 2018USD ($)	Dec. 31, 2018shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of share-based employee compensation plans | Plan	3
Pre-2017 RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 140
Weighted average recognition period	1 year 6 months
Post-2017 RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 1,400
Weighted average recognition period	3 years 1 month 6 days
Service condition satisfied, years	4 years
Post-2017 RSUs | First Year
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting percentage	10.00%
Post-2017 RSUs | Second Year
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting percentage	20.00%
Post-2017 RSUs | Third Year
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting percentage	30.00%
Post-2017 RSUs | Fourth Year
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting percentage	40.00%
RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs vested but not yet settled | shares	20.8		22.4
RSAs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$ 48.4
Weighted average recognition period	3 years 3 months 18 days
Fair value of vested shares	$ 4.6	$ 1.6
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average recognition period	2 years 3 months 18 days
Unrecognized compensation cost related to stock options granted and assumed	$ 32.3

Stockholders' Equity - Summary

Stockholders' Equity - Summary of RSU and RSA Award Activity (Details) - $ / shares shares in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Restricted Stock Units
Outstanding Restricted Stock
Outstanding Restricted Stock, Vested	(20,800)	(22,400)
Weighted-Average Grant Date Fair Value per Restricted Stock
Weighted-Average Grant Date Fair Value per Restricted Stock, Unvested Beginning Balance	$ 13.34
Weighted-Average Grant Date Fair Value per Restricted Stock, Granted	8.50
Weighted-Average Grant Date Fair Value per Restricted Stock, Vested	13.93
Weighted-Average Grant Date Fair Value per Restricted Stock, Forfeited	13.32
Weighted-Average Grant Date Fair Value per Restricted Stock, Unvested Ending Balance	$ 11.89	$ 13.34
Restricted Stock Units | Class A Common Stock
Outstanding Restricted Stock
Outstanding Restricted Stock, Unvested Beginning Balance	149,638
Outstanding Restricted Stock, Granted	50,941
Outstanding Restricted Stock, Vested	(14,343)
Outstanding Restricted Stock, Forfeited	(11,496)
Outstanding Restricted Stock, Unvested Ending Balance	174,740	149,638
Restricted Stock Units | Class B Common Stock
Outstanding Restricted Stock
Outstanding Restricted Stock, Unvested Beginning Balance	492
Outstanding Restricted Stock, Vested	(382)
Outstanding Restricted Stock, Forfeited	(1)
Outstanding Restricted Stock, Unvested Ending Balance	109	492
Restricted Stock Awards
Weighted-Average Grant Date Fair Value per Restricted Stock
Weighted-Average Grant Date Fair Value per Restricted Stock, Unvested Beginning Balance	$ 7.51
Weighted-Average Grant Date Fair Value per Restricted Stock, Vested	8.44
Weighted-Average Grant Date Fair Value per Restricted Stock, Forfeited	5.58
Weighted-Average Grant Date Fair Value per Restricted Stock, Unvested Ending Balance	$ 7.77	$ 7.51
Restricted Stock Awards | Class A Common Stock
Outstanding Restricted Stock
Outstanding Restricted Stock, Unvested Beginning Balance	8,134
Outstanding Restricted Stock, Vested	(546)
Outstanding Restricted Stock, Forfeited	(1,115)
Outstanding Restricted Stock, Unvested Ending Balance	6,473	8,134

Stockholders' Equity - Summar_2

Stockholders' Equity - Summary of Stock Option Award Activity (Details) - Stock Options - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Weighted-Average Exercise Price
Weighted-Average Exercise Price, Beginning balance	$ 7.83
Weighted-Average Exercise Price, Exercised	2.93
Weighted-Average Exercise Price, Forfeited	13.58
Weighted-Average Exercise Price, Ending balance	$ 8.10	$ 7.83
Weighted-Average Remaining Contractual Term
Weighted-Average Remaining Contractual Term (in years)	5 years 11 months 23 days	6 years 4 months 28 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value, Outstanding	$ 34,567
Aggregate Intrinsic Value, Outstanding	$ 61,054	$ 34,567
Class A Common Stock
Number of Shares
Number of Shares, Beginning balance	13,322
Number of Shares, Exercised	(1,260)
Number of Shares, Forfeited	(969)
Number of Shares, Ending balance	11,093	13,322
Class B Common Stock
Number of Shares
Number of Shares, Beginning balance	2,969
Number of Shares, Exercised	(651)
Number of Shares, Forfeited	(29)
Number of Shares, Ending balance	2,289	2,969

Stockholders' Equity - Summar_3

Stockholders' Equity - Summary of Total Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	$ 162,556	$ 133,258
Cost of Revenue
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	1,849	276
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	112,242	77,815
Sales and Marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	17,760	16,185
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total	$ 30,705	$ 38,982

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill, beginning balance	$ 632,370
Foreign currency translation	(2,774)
Goodwill, ending balance	$ 629,596

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 225,798	$ 226,259
Accumulated Amortization	110,412	100,205
Net	$ 115,386	$ 126,054
Domain Names
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life - Years	1 year 6 months	1 year 7 months 6 days
Gross Carrying Amount	$ 5,414	$ 5,414
Accumulated Amortization	4,554	4,283
Net	$ 860	$ 1,131
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life - Years	1 year 2 months 12 days	1 year 4 months 24 days
Gross Carrying Amount	$ 5,772	$ 5,772
Accumulated Amortization	4,407	4,076
Net	$ 1,365	$ 1,696
Acquired Developed Technology
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life - Years	3 years 7 months 6 days	3 years 9 months 18 days
Gross Carrying Amount	$ 179,330	$ 179,791
Accumulated Amortization	86,899	78,729
Net	$ 92,431	$ 101,062
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life - Years	2 years	2 years 1 month 6 days
Gross Carrying Amount	$ 15,572	$ 15,572
Accumulated Amortization	8,893	8,012
Net	$ 6,679	$ 7,560
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted- Average Remaining Useful Life - Years	6 years 7 months 6 days	6 years 10 months 24 days
Gross Carrying Amount	$ 19,710	$ 19,710
Accumulated Amortization	5,659	5,105
Net	$ 14,051	$ 14,605

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 10.4	$ 10.8

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Schedule of Estimated Intangible Asset Amortization Expense (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Finite Lived Intangible Assets Future Amortization Expense Current And Five Succeeding Fiscal Years [Abstract]
Remainder of 2019	$ 28,229
2020	32,113
2021	25,050
2022	15,411
2023	8,378
Thereafter	6,205
Net	$ 115,386	$ 126,054

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended
	Jan. 31, 2017	Mar. 31, 2019	Oct. 31, 2018	Feb. 28, 2017
Indemnification Agreement
Loss Contingencies [Line Items]
Liabilities recorded		$ 0
Google Cloud Platform License Agreement
Loss Contingencies [Line Items]
Purchase commitment, description		The agreement has an initial term of five years and we are required to purchase at least $400.0 million of cloud services in each year of the agreement. For each of the first four years, up to 15% of this amount may be moved to a subsequent year. If we fail to meet the minimum purchase commitment during any year, we are required to pay the difference.
Initial term of agreement	5 years
Minimum amount of services to be purchased in each year	$ 400,000
Initial period required to purchase minimum amount of services	4 years
Google Cloud Platform License Agreement | Maximum
Loss Contingencies [Line Items]
Purchase commitment, percentage of minimum purchase requirement that can be moved to subsequent year	15.00%
AWS Enterprise Agreement, Cloud Services
Loss Contingencies [Line Items]
Purchase commitment, description		In March 2016, we entered into the AWS Enterprise Agreement for the use of cloud services from Amazon Web Services, Inc. (“AWS”), which was amended in March 2016 and again in February 2017. The agreement will continue indefinitely until terminated by either party. Under the February 2017 addendum to the agreement, we committed to spend $1.0 billion between January 2017 and December 2021. That addendum was amended in October 2018, and we are now committed to spend an aggregate of $1.1 billion between January 2017 and December 2022 on AWS services ($90.0 million in 2018, $150.0 million in 2019, $215.0 million in 2020, $280.0 million in 2021, and $349.0 million in 2022). If we fail to meet the minimum purchase commitment during any year, we are required to pay the difference. Any such payment may be applied to future use of AWS services during the addendum term, although it will not count towards meeting the future minimum purchase commitments under the addendum.
Minimum purchase commitment to spend between January 2017 and December 2021				$ 1,000,000,000
Minimum purchase commitment to spend between January 2017 and December 2022			$ 1,100,000,000
Minimum purchase commitment, due in 2018			90,000,000
Minimum purchase commitment, due in 2019			150,000,000
Minimum purchase commitment, due in 2020			215,000,000
Minimum purchase commitment, due in 2021			280,000,000
Minimum purchase commitment, due in 2022			$ 349,000,000

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Future Minimum Contractual Commitments (Details) $ in Thousands	Mar. 31, 2019USD ($)
Commitments And Contingencies Disclosure [Abstract]
Remainder of 2019	$ 447,589
2020	627,007
2021	681,143
2022	382,333
Total minimum commitments	$ 2,138,072

Leases - Components of Lease Co

Leases - Components of Lease Cost (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating lease expense	$ 13,681
Sublease income	(925)
Total net lease costs	$ 12,756

Leases - Summary of Weighted Av

Leases - Summary of Weighted Average Remaining Lease Term and Discount Rate Related to Operating Leases (Details)	Mar. 31, 2019
Leases [Abstract]
Weighted-average remaining lease term	7 years 3 months 18 days
Weighted-average discount rate	6.20%

Leases - Present Value of Opera

Leases - Present Value of Operating Lease Liabilities (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
Remainder of 2019	$ 50,778
2020	67,626
2021	66,495
2022	59,443
2023	57,828
Thereafter	168,038
Total lease payments	470,208
Less: Imputed interest	(94,837)
Present value of lease liabilities	$ 375,371

Leases - Additional Information

Leases - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Lease exit liability		$ 32.1
Net assets capitalized under leases		$ 48.4
Operating lease liabilities	$ 16.4

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Fair Value Disclosures [Abstract]
Fair value assets transferred from level 1 to level 2	$ 0
Fair value assets transferred from level 2 to level 1	0
Fair value liabilities transferred from level 1 to level 2	0
Fair value liabilities transferred from level 2 to level 1	0
Other-than-temporary impaired investments	$ 0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash, Cost or Amortized Cost	$ 245,639	$ 387,149
Fair Value, Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and Marketable securities, Cost or Amortized Cost	1,208,536		$ 1,279,275
Cash and Marketable securities, Gross Unrealized Gains	254		17
Cash and Marketable securities, Gross Unrealized Losses	(58)		(229)
Cash and Marketable Securities, Total Estimated Fair Value	1,208,732		1,279,063
Fair Value, Measurements, Recurring | Cash
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash, Cost or Amortized Cost	210,507		279,950
Cash, Total Estimated Fair Value	210,507		279,950
Fair Value, Measurements, Recurring | Level 1 Securities | U.S. Government Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, Cost or Amortized Cost	728,749		735,988
Marketable securities, Gross Unrealized Gains	208		12
Marketable securities, Gross Unrealized Losses	(27)		(175)
Marketable securities, Total Estimated Fair Value	728,930		735,825
Fair Value, Measurements, Recurring | Level 1 Securities | U.S. Government Agency Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, Cost or Amortized Cost	167,044		181,032
Marketable securities, Gross Unrealized Gains	15		4
Marketable securities, Gross Unrealized Losses	(31)		(36)
Marketable securities, Total Estimated Fair Value	167,028		181,000
Fair Value, Measurements, Recurring | Level 2 Securities | Corporate Debt Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, Cost or Amortized Cost	28,931		35,819
Marketable securities, Gross Unrealized Gains	31		1
Marketable securities, Gross Unrealized Losses			(18)
Marketable securities, Total Estimated Fair Value	28,962		35,802
Fair Value, Measurements, Recurring | Level 2 Securities | Commercial Paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, Cost or Amortized Cost	46,215		33,193
Marketable securities, Total Estimated Fair Value	46,215		33,193
Fair Value, Measurements, Recurring | Level 2 Securities | Certificates of Deposit
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities, Cost or Amortized Cost	27,090		13,293
Marketable securities, Total Estimated Fair Value	$ 27,090		$ 13,293

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 279	$ 1,578

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Schedules of Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, beginning of period	$ 2,310,999
OCI before reclassifications	(3,215)
Total other comprehensive income (loss), net of tax	(3,215)	$ 6,806
Balance, end of period	2,165,877	2,791,848
Marketable Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, beginning of period	(368)
OCI before reclassifications	309
Total other comprehensive income (loss), net of tax	309
Balance, end of period	(59)
Foreign Currency Translation
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, beginning of period	3,515
OCI before reclassifications	(3,524)
Total other comprehensive income (loss), net of tax	(3,524)
Balance, end of period	(9)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income Loss [Line Items]
Balance, beginning of period	3,147	14,157
Total other comprehensive income (loss), net of tax	(3,215)	6,806
Balance, end of period	$ (68)	$ 20,963

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Marketable Securities
Accumulated Other Comprehensive Income Loss [Line Items]
Tax expense for gains / losses on marketable securities	$ 0.1

Property and Equipment, Net - P

Property and Equipment, Net - Property and Equipment, Net by Geographic Area (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Property and equipment, net:
Total property and equipment, net	$ 195,302	$ 212,560
United States
Property and equipment, net:
Total property and equipment, net	174,961	190,412
Rest of World
Property and equipment, net:
Total property and equipment, net	$ 20,341	$ 22,148

Property and Equipment, Net -_2

Property and Equipment, Net - Property and Equipment, Net by Geographic Area (Parenthetical) (Details) - Country	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Geographic Concentrations | Property and Equipment Net | Rest of World
Revenues From External Customers And Long Lived Assets [Line Items]
Number of individual country exceeded 10% of total property and equipment	0	0