Altaba (AABA) 10-Q 10 May 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 29, 2016
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Trading Symbol	YHOO
Entity Registrant Name	YAHOO INC
Entity Central Index Key	1,011,006
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		949,068,569

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 1,479,604	$ 1,631,911
Short-term marketable securities	4,497,046	4,225,112
Accounts receivable, net	878,135	1,047,504
Prepaid expenses and other current assets	369,439	602,792
Total current assets	7,224,224	7,507,319
Long-term marketable securities	1,153,846	975,961
Property and equipment, net	1,496,510	1,547,323
Goodwill	815,979	808,114
Intangible assets, net	316,251	347,269
Other long-term assets and investments	261,107	342,390
Investment in Alibaba Group	30,313,175	31,172,361
Investments in equity interests	2,577,137	2,503,229
Total assets	44,158,229	45,203,966
Current liabilities:
Accounts payable	187,862	208,691
Other accrued expenses and current liabilities	830,542	934,658
Deferred revenue	139,606	134,031
Total current liabilities	1,158,010	1,277,380
Convertible notes	1,249,775	1,233,485
Long-term deferred revenue	30,733	27,801
Other long-term liabilities	124,306	118,689
Deferred tax liabilities related to investment in Alibaba Group	12,261,783	12,611,867
Deferred and other long-term tax liabilities	818,450	855,324
Total liabilities	$ 15,643,057	$ 16,124,546
Commitments and contingencies (Note 12)
Yahoo! Inc. stockholders' equity:
Common stock, $0.001 par value; 5,000,000 shares authorized; 962,959 shares issued and 945,854 shares outstanding as of December 31, 2015 and 965,336 shares issued and 948,249 shares outstanding as of March 31, 2016	$ 961	$ 959
Additional paid-in capital	8,888,096	8,807,273
Treasury stock at cost, 17,105 shares as of December 31, 2015 and 17,087 shares as of March 31, 2016	(910,702)	(911,533)
Retained earnings	4,470,747	4,570,807
Accumulated other comprehensive income	16,029,245	16,576,031
Total Yahoo! Inc. stockholders' equity	28,478,347	29,043,537
Noncontrolling interests	36,825	35,883
Total equity	28,515,172	29,079,420
Total liabilities and equity	$ 44,158,229	$ 45,203,966

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Mar. 31, 2016	Dec. 31, 2015
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	5,000,000	5,000,000
Common stock, shares issued	965,336	962,959
Common stock, shares outstanding	948,249	945,854
Treasury stock at cost, shares	17,087	17,105

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue	$ 1,087,152	$ 1,225,970
Operating expenses:
Cost of revenue - traffic acquisition costs	227,763	183,139
Cost of revenue - other	282,587	285,263
Sales and marketing	236,033	275,357
Product development	278,029	326,747
General and administrative	155,451	173,513
Amortization of intangibles	18,773	20,073
Gain on sale of patents	(1,500)	(2,000)
Restructuring charges, net	57,230	51,232
Total operating expenses	1,254,366	1,313,324
Loss from operations	(167,214)	(87,354)
Other expense, net	(47,416)	(31,063)
Loss before income taxes and earnings in equity interests	(214,630)	(118,417)
Benefit for income taxes	34,766	40,900
Earnings in equity interests, net of tax	81,574	99,690
Net income (loss)	(98,290)	22,173
Net income attributable to noncontrolling interests	(942)	(975)
Net income (loss) attributable to Yahoo! Inc.	$ (99,232)	$ 21,198
Net income (loss) attributable to Yahoo! Inc. common stockholders per share - basic	$ (0.10)	$ 0.02
Net income (loss) attributable to Yahoo! Inc. common stockholders per share - diluted	$ (0.10)	$ 0.02
Shares used in per share calculation - basic	945,719	934,748
Shares used in per share calculation - diluted	945,719	947,976
Stock-based compensation expense by function:
Stock-based compensation expense by function	$ 108,407	$ 115,696
Cost of revenue - other
Stock-based compensation expense by function:
Stock-based compensation expense by function	8,526	6,009
Sales and marketing
Stock-based compensation expense by function:
Stock-based compensation expense by function	32,887	38,121
Product development
Stock-based compensation expense by function:
Stock-based compensation expense by function	47,988	48,221
General and administrative
Stock-based compensation expense by function:
Stock-based compensation expense by function	19,006	23,345
Restructuring charges, net
Stock-based compensation expense by function:
Stock-based compensation expense by function	$ 7,374	$ 2,705

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net income (loss)	$ (98,290)	$ 22,173
Available-for-sale securities:
Unrealized losses on available-for-sale securities, net of taxes of $3,238,133 and $363,084 for the three months ended March 31, 2015 and 2016,	(516,536)	(4,713,620)
Reclassification adjustment for realized losses on available-for-sale securities included in net income (loss), net of taxes of $(50) and $(112) for the three months ended March 31, 2015 and 2016, respectively	202	84
Net change in unrealized losses on available-for-sale securities, net of tax	(516,334)	(4,713,536)
Foreign currency translation adjustments ("CTA"):
Foreign CTA gains (losses), net of taxes of $582 and $(336) for the three months ended March 31, 2015 and 2016, respectively	2,183	(271,242)
Net investment hedge CTA gains (losses), net of taxes of $(1,591) and $16,931 for the three months ended March 31, 2015 and 2016, respectively	(30,710)	2,634
Net foreign CTA losses, net of tax	(28,527)	(268,608)
Cash flow hedges:
Unrealized losses on cash flow hedges, net of taxes of $376 and $1,338 for the three months ended March 31, 2015 and 2016, respectively	(2,426)	(11,156)
Reclassification adjustment for realized losses on cash flow hedges included in net income (loss), net of taxes of $189 and $(277) for the three months ended March 31, 2015 and 2016, respectively	501	1,660
Net change in unrealized losses on cash flow hedges, net of tax	(1,925)	(9,496)
Other comprehensive loss	(546,786)	(4,991,640)
Comprehensive loss	(645,076)	(4,969,467)
Less: comprehensive income attributable to noncontrolling interests	(942)	(975)
Comprehensive loss attributable to Yahoo! Inc.	$ (646,018)	$ (4,970,442)

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Loss (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Unrealized losses on available-for-sale securities, net of taxes	$ 363,084	$ 3,238,133
Reclassification adjustment for realized (gains) losses on available-for-sale securities included in net income, taxes	(112)	(50)
Foreign CTA gains (losses), net of taxes	(336)	582
Net investment hedge CTA gains (losses), taxes	16,931	(1,591)
Unrealized losses on cash flow hedges, taxes	1,338	376
Reclassification adjustment for realized losses on cash flow hedges included in net income (loss), taxes	$ (277)	$ 189

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (98,290)	$ 22,173
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation	107,377	117,061
Amortization of intangible assets	32,288	34,478
Accretion of convertible notes discount	16,290	15,457
Stock-based compensation expense	115,781	118,401
Non-cash restructuring (reversals) charges	362	(859)
Non-cash accretion on marketable debt securities	12,354	16,012
Foreign exchange loss (gain)	(6,524)	18,233
Loss (gain) on sale of assets and other	(190)	63
Gain on sale of patents	(1,500)	(2,000)
Loss on Hortonworks warrants	39,150	11,909
Earnings in equity interests	(81,574)	(99,690)
Tax benefits from stock-based awards	1,192	32,822
Excess tax benefits from stock-based awards	(7,526)	(37,470)
Deferred income taxes	(37,794)	17,009
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	172,677	89,923
Prepaid expenses and other	232,783	(64,245)
Accounts payable	2,844	30,613
Accrued expenses and other liabilities	(142,308)	66,466
Incomes taxes payable related to sale of Alibaba Group ADSs		(3,282,293)
Deferred revenue	8,376	(65,002)
Net cash (used in) provided by operating activities	365,768	(2,960,939)
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(76,399)	(111,677)
Proceeds from sales of property and equipment	300	224
Purchases of marketable securities	(1,871,316)	(712,818)
Proceeds from sales of marketable securities	47,374	172,352
Proceeds from maturities of marketable securities	1,369,836	2,359,767
Acquisitions, net of cash acquired		(23,073)
Proceeds from sales of patents	1,500	20,000
Purchases of intangible assets	(1,177)	(1,160)
Proceeds from settlement of derivative hedge contracts	36,028	19,627
Payments for settlement of derivative hedge contracts	(3,024)	(2,151)
Other investing activities, net	(58)	(38)
Net cash provided by (used in) investing activities	(496,936)	1,721,053
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	4,754	36,189
Repurchases of common stock		(203,771)
Excess tax benefits from stock-based awards	7,526	37,470
Tax withholdings related to net share settlements of restricted stock awards and restricted stock units	(42,139)	(97,426)
Other financing activities, net	(3,637)	(4,573)
Net cash used in financing activities	(33,496)	(232,111)
Effect of exchange rate changes on cash and cash equivalents	12,357	(17,444)
Net change in cash and cash equivalents	(152,307)	(1,489,441)
Cash and cash equivalents at beginning of period	1,631,911	2,664,098
Cash and cash equivalents at end of period	1,479,604	1,174,657
NON-CASH ACTIVITIES:
Change in non-cash acquisitions of property and equipment	$ 6,333	$ (9,198)

The Company And Summary Of Sign

The Company And Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2016
The Company And Summary Of Significant Accounting Policies	Note 1 The Company And Summary Of Significant Accounting Policies The Company. Basis of Presentation. The Company revised the consolidated statement of cash flows for the three months ended March 31, 2015 to correct for a non-cash acquisition of property and equipment resulting in an increase in cash used in operating activities of $23 million and a corresponding increase in net cash provided by investing activities. The accompanying unaudited condensed consolidated interim financial statements reflect all adjustments, consisting of only normal recurring items, which, in the opinion of management, are necessary for a fair statement of the results of operations for the periods shown. The results of operations for such periods are not necessarily indicative of the results expected for the full year or for any future periods. The preparation of consolidated financial statements in conformity with generally accepted accounting principles (“GAAP”) in the United States (“U.S.”) requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets, liabilities, revenue, and expenses and the related disclosure of contingent assets and liabilities. On an ongoing basis, the Company evaluates its estimates, including those related to revenue, the useful lives of long-lived assets including property and equipment and intangible assets, investment fair values, originally developed content, acquired content, stock-based compensation, goodwill, income taxes, contingencies, and restructuring charges. The Company bases its estimates of the carrying value of certain assets and liabilities on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, when these carrying values are not readily available from other sources. Actual results may differ from these estimates. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. The condensed consolidated balance sheet as of December 31, 2015 was derived from the Company’s audited financial statements for the year ended December 31, 2015, but does not include all disclosures required by U.S. GAAP. However, the Company believes the disclosures are adequate to make the information presented not misleading. Recent Accounting Pronouncements . In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities”. The new standard principally affects accounting standards for equity investments, financial liabilities where the fair value option has been elected, and the presentation and disclosure requirements for financial instruments. Upon the effective date of the new standards, all equity investments in unconsolidated entities, other than those accounted for using the equity method of accounting, will generally be measured at fair value through earnings. There will no longer be an available-for-sale classification and therefore, no changes in fair value will be reported in other comprehensive income (loss) for equity securities with readily determinable fair values. The new guidance on the classification and measurement will be effective for public business entities in fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and early adoption is permitted. The Company is in the process of evaluating the impact of the adoption of ASU 2016-01 on the consolidated financial statements and currently anticipates the new guidance would significantly impact its consolidated statements of operations and consolidated statements of comprehensive income (loss) as the Company’s marketable equity securities, primarily the Company’s investments in Alibaba Group Holding Limited (“Alibaba Group”) and Hortonworks Inc. (“Hortonworks”), are currently classified as available-for-sale and are reported at fair value, with unrealized gains and losses, net of tax, recorded in accumulated other comprehensive income. In February 2016, the FASB issued ASU 2016-02, “Leases” which, for operating leases, requires a lessee to recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in its balance sheet. The standard also requires a lessee to recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term, on a generally straight-line basis. The ASU is effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the effects that the adoption of ASU 2016-02 will have on the Company’s consolidated financial position, results of operations and cash flows and anticipates the new guidance will significantly impact its consolidated financial statements given the Company has a significant number of leases. In March 2016, the FASB issued ASU 2016-06, “Contingent put and call options in debt instruments, a consensus of the FASB’s Emerging Issues Task Force,” which simplifies the embedded derivative analysis for debt instruments containing contingent call or put options. The new guidance clarifies that an exercise contingency does not need to be evaluated to determine whether it relates to interest rates and credit risk in an embedded derivative analysis. A contingent put or call option embedded in a debt instrument would be evaluated for possible separate accounting as a derivative instrument without regard to the nature of the exercise contingency. The ASU is effective for public companies for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted for any interim and annual financial statements that have not yet been issued. The new guidance is required to be applied on a modified retrospective basis to all existing and future debt instruments. An entity will be able to elect the fair value option at transition for the entire debt instrument, including its embedded features, but will not be able to unwind a previously-elected fair value option. The Company is currently evaluating the effects, if any, that the adoption of this guidance will have on the Company’s consolidated financial position, results of operations and cash flows. In March 2016, the FASB issued ASU 2016-07, “Simplifying the Transition to the Equity Method of Accounting,” which eliminates the requirement to apply the equity method of accounting retrospectively when a reporting entity obtains significant influence over a previously held investment in order to reduce recognition and presentation complexity in financial reporting. Instead, the new guidance requires equity method of accounting to be applied prospectively from the date significant influence is obtained. The ASU is effective for public companies for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted for any interim and annual financial statements that have not yet been issued. The new guidance is required to be applied prospectively for investments that qualify for the equity method of accounting after the effective date. The Company is currently evaluating the effects, if any, that the adoption of this guidance will have on the Company’s consolidated financial position, results of operations and cash flows. In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” as part of its simplification initiative, which involves several aspects of accounting for share-based payment transactions, including the income tax effects, statutory withholding requirements, forfeitures, and classification on the statement of cash flows. The ASU is effective for public companies for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted for any interim and annual financial statements that have not been issued. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The Company is currently evaluating the effects, if any, that the adoption of this guidance will have on the Company’s consolidated financial position, results of operations and cash flows.

Marketable Securities, Investme

Marketable Securities, Investments And Fair Value Disclosures	3 Months Ended
	Mar. 31, 2016
Marketable Securities, Investments And Fair Value Disclosures	Note 2 Marketable Securities, Investments And Fair Value Disclosures The following tables summarize the available-for-sale securities (in thousands): December 31, 2015 Cost Basis Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Government and agency securities $ 616,501 $ 24 $ (635) $ 615,890 Corporate debt securities, commercial paper, time deposits,and bank certificates of deposit 4,589,799 292 (4,908) 4,585,183 Alibaba Group equity securities 2,713,483 28,458,878 - 31,172,361 Hortonworks equity securities 26,246 57,977 - 84,223 Other corporate equity securities 298 - (101) 197 Total available-for-sale marketable securities $ 7,946,327 $ 28,517,171 $ (5,644) $ 36,457,854 March 31, 2016 Cost Basis Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Government and agency securities $ 631,980 $ 263 $ (30) $ 632,213 Corporate debt securities, commercial paper, time deposits, and bank certificates of deposit 5,016,280 3,174 (775) 5,018,679 Alibaba Group equity securities 2,713,483 27,599,692 - 30,313,175 Hortonworks equity securities 26,246 17,212 - 43,458 Other corporate equity securities 7,140 2,331 (91) 9,380 Total available-for-sale marketable securities $ 8,395,129 $ 27,622,672 $ (896) $ 36,016,905 December 31, 2015 March 31, 2016 Reported as: Short-term marketable securities $ 4,225,112 $ 4,497,046 Long-term marketable securities 975,961 1,153,846 Investment in Alibaba Group 31,172,361 30,313,175 Other long-term assets and investments 84,420 52,838 Total $ 36,457,854 $ 36,016,905 Short-term, highly liquid investments of $667 million and $605 million as of December 31, 2015 and March 31, 2016, respectively, included in cash and cash equivalents on the condensed consolidated balance sheets are not included in the table above as the gross unrealized gains and losses were immaterial as the carrying value approximates fair value because of the short maturity of those instruments. Realized gains and losses from sales of available-for-sale marketable debt securities were not material for both the three months ended March 31, 2015 and 2016. The remaining contractual maturities of available-for-sale marketable debt securities were as follows (in thousands): December 31, 2015 March 31, 2016 Due within one year $ 4,225,112 $ 4,497,046 Due after one year through five years 975,961 1,153,846 Total available-for-sale marketable debt securities $ 5,201,073 $ 5,650,892 The following tables show all available-for-sale marketable debt securities in an unrealized loss position for which an other-than-temporary impairment has not been recognized and the related gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands): December 31, 2015 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Government and agency securities $ 552,041 $ (635) $ - $ - $ 552,041 $ (635) Corporate debt securities, commercial paper, and bank certificates of deposit 2,415,347 (4,763) 99,214 (145) 2,514,561 (4,908) Total available-for-sale marketable debt securities $ 2,967,388 $ (5,398) $ 99,214 $ (145) $ 3,066,602 $ (5,543) March 31, 2016 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Government and agency securities $ 241,319 $ (30) $ - $ - $ 241,319 $ (30) Corporate debt securities, commercial paper, and bank certificates of deposit 1,032,635 (750) 23,893 (25) 1,056,528 (775) Total available-for-sale marketable debt securities $ 1,273,954 $ (780) $ 23,893 $ (25) $ 1,297,847 $ (805) The Company’s investment portfolio includes equity securities of Alibaba Group and Hortonworks, as well as liquid high-quality fixed income debt securities including government, agency and corporate debt, money market funds, commercial paper, certificates of deposit and time deposits with financial institutions. The fair value of any debt or equity security will vary over time and is subject to a variety of market risks including: macro-economic, regulatory, industry, company performance, and systemic risks of the equity markets overall. Consequently, the carrying value of the Company’s investment portfolio will vary over time as the value of its investment changes. Investments in both fixed rate and floating rate interest earning instruments carry a degree of interest rate risk. Fixed rate securities may have their fair value adversely impacted due to a rise in interest rates, while floating rate securities may produce less income than expected if interest rates fall. Fixed income securities may have their fair value adversely impacted due to a deterioration of the credit quality of the issuer. The longer the term of the securities, the more susceptible they are to changes in market rates. Available-for-sale marketable debt securities are reviewed periodically to identify possible other-than-temporary impairment. The Company has no current requirement or intent to sell the securities in an unrealized loss position. The Company expects to recover up to (or beyond) the initial cost of investment for securities held. The following table sets forth the financial assets and liabilities, measured at fair value, by level within the fair value hierarchy as of December 31, 2015 (in thousands): Fair Value Measurements at Reporting Date Using Assets Level 1 Level 2 Level 3 Total Money market funds (1) $ 386,792 $ - $ - $ 386,792 Available-for-sale marketable debt securities: Government and agency securities (1) - 635,917 - 635,917 Commercial paper and bank certificates of deposit (1) - 1,844,494 - 1,844,494 Corporate debt securities (1) - 2,918,496 - 2,918,496 Time deposits (1) - 82,703 - 82,703 Available-for-sale equity securities: Other corporate equity securities (2) 197 - - 197 Alibaba Group equity securities 31,172,361 - - 31,172,361 Hortonworks equity securities (2) 84,223 - - 84,223 Hortonworks warrants - - 78,861 78,861 Foreign currency derivative contracts (3) - 84,319 - 84,319 Financial assets at fair value $ 31,643,573 $ 5,565,929 $ 78,861 $ 37,288,363 Liabilities Foreign currency derivative contracts (3) - (5,661) - (5,661) Total financial assets and liabilities at fair value $ 31,643,573 $ 5,560,268 $ 78,861 $ 37,282,702 The following table sets forth the financial assets and liabilities, measured at fair value, by level within the fair value hierarchy as of March 31, 2016 (in thousands): Fair Value Measurements at Reporting Date Using Assets Level 1 Level 2 Level 3 Total Money market funds (1) $ 512,108 $ - $ - $ 512,108 Available-for-sale marketable debt securities: Government and agency securities (1) - 632,213 - 632,213 Commercial paper and bank certificates of deposit (1) - 2,089,637 - 2,089,637 Corporate debt securities (1) - 2,969,553 - 2,969,553 Time deposits (1) - 52,411 - 52,411 Available-for-sale equity securities: Other corporate equity securities (2) 9,380 - - 9,380 Alibaba Group equity securities 30,313,175 - - 30,313,175 Hortonworks equity securities (2) 43,458 - - 43,458 Hortonworks warrants - - 39,711 39,711 Foreign currency derivative contracts (3) - 19,345 - 19,345 Financial assets at fair value $ 30,878,121 $ 5,763,159 $ 39,711 $ 36,680,991 Liabilities Foreign currency derivative contracts (3) - (27,855) - (27,855) Total financial assets and liabilities at fair value $ 30,878,121 $ 5,735,304 $ 39,711 $ 36,653,136 (1) The money market funds, government and agency securities, commercial paper and bank certificates of deposit, corporate debt securities, and time deposits are classified as part of either cash and cash equivalents or short or long-term marketable securities on the condensed consolidated balance sheets. (2) The Hortonworks equity securities and other corporate equity securities are classified as part of other long-term assets and investments on the condensed consolidated balance sheets. (3) Foreign currency derivative contracts are classified as part of either current or noncurrent assets or liabilities on the condensed consolidated balance sheets. The notional amounts of the foreign currency derivative contracts were: $1.5 billion, including contracts designated as net investment hedges of $1.2 billion, as of December 31, 2015; and $1.0 billion, including contracts designated as net investment hedges of $0.8 billion, as of March 31, 2016. The amount of cash included in cash and cash equivalents as of December 31, 2015 and March 31, 2016 was $965 million and $875 million, respectively. The fair values of the Company’s Level 1 financial assets and liabilities are based on quoted prices in active markets for identical assets or liabilities. The fair values of the Company’s Level 2 financial assets and liabilities are obtained using quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets in markets that are not active; and inputs other than quoted prices (e.g., interest rates and yield curves). The Company utilizes a pricing service to assist in obtaining fair value pricing for the marketable debt securities. The fair value for the Company’s Level 3 financial asset was obtained using a Black-Scholes model. Activity between Levels of the Fair Value Hierarchy During the year ended December 31, 2015 and the three months ended March 31, 2016, the Company did not make any transfers between Level 1, Level 2, and Level 3 assets or liabilities. Hortonworks Warrants The estimated fair value of the Hortonworks warrants was $79 million and $40 million as of December 31, 2015 and March 31, 2016, respectively, which is included in other long-term assets and investments on the condensed consolidated balance sheets. During the three months ended March 31, 2015 and 2016, the Company recorded a loss of $12 million and $39 million, respectively, due to the change in estimated fair value of the Hortonworks warrants during the respective periods, which was included within other expense, net in the Company’s condensed consolidated statements of operations. The estimated fair value of the Hortonworks warrants was determined using a Black-Scholes model. Assets and Liabilities at Fair Value on a Nonrecurring Basis Convertible Senior Notes In 2013, the Company issued $1.4 billion aggregate principal amount of 0.00% Convertible Senior Notes due in 2018 (the “Notes”). The Notes are carried at their original issuance value, net of unamortized debt discount, and are not marked to market each period. The approximate estimated fair value of the Notes as of both December 31, 2015 and March 31, 2016 was $1.3 billion. The estimated fair value of the Notes was determined on the basis of quoted market prices observable in the market and is considered Level 2 in the fair value hierarchy. See Note 11 — “Convertible Notes” for additional information related to the Notes. Other Investments As of both December 31, 2015 and March 31, 2016, the Company held approximately $83 million of investments in equity securities of privately-held companies that are accounted for using the cost method. These investments are included within other long-term assets and investments on the condensed consolidated balance sheets. Such investments are reviewed periodically for impairment.

Consolidated Financial Statemen

Consolidated Financial Statement Details	3 Months Ended
	Mar. 31, 2016
Consolidated Financial Statement Details	Note 3 Consolidated Financial Statement Details Accumulated Other Comprehensive Income The components of accumulated other comprehensive income were as follows (in thousands): December 31, 2015 March 31, 2016 Unrealized gains on available-for-sale securities, net of tax $ 16,918,539 $ 16,402,205 Unrealized gains (losses) on cash flow hedges, net of tax 482 (1,443) Foreign currency translation, net of tax (342,990) (371,517) Accumulated other comprehensive income $ 16,576,031 $ 16,029,245 Noncontrolling Interests Noncontrolling interests were as follows (in thousands): March 31, 2015 March 31, 2016 Beginning noncontrolling interests $ 43,755 $ 35,883 Net income attributable to noncontrolling interests 975 942 Ending noncontrolling interests $ 44,730 $ 36,825 Other Expense, Net Other expense, net was as follows (in thousands): Three Months Ended March 31, 2015 2016 Interest, dividend, and investment income $ 8,845 $ 11,482 Interest expense (17,570) (18,393) Loss on Hortonworks warrants (11,909) (39,150) Foreign exchange losses (11,341) (2,138) Other 912 783 Total other expense, net $ (31,063) $ (47,416) Interest, dividend and investment income consists of income earned from cash and cash equivalents in bank accounts and investments made in marketable debt securities. Interest expense is related to the Notes and notes payable related to building and capital lease obligations for data centers. During the three months ended March 31, 2015 and 2016, the Company recorded a loss of $12 million and $39 million, respectively, due to the change in estimated fair value of the Hortonworks warrants during the respective periods. Changes in the estimated fair value of the Hortonworks warrants are recorded within other expense, net in the Company’s condensed consolidated statements of operations. See Note 2—“Marketable Securities, Investments and Fair Value Disclosures” for additional information. Foreign exchange losses consists of foreign exchange gains and losses due to re-measurement of monetary assets and liabilities denominated in non-functional currencies, and unrealized and realized foreign currency transaction gains and losses, including gains and losses related to balance sheet hedges. Other consists of gains from other non-operational items. Reclassifications Out of Accumulated Other Comprehensive Income Reclassifications out of accumulated other comprehensive income for the three months ended March 31, 2015 were as follows (in thousands): Amount Accumulated Other Comprehensive Income Affected Line Item in the Statement of Income Realized losses on cash flow hedges, net of tax $ 1,660 Revenue Realized losses on available-for-sale securities, net of tax 84 Other expense, net Total reclassifications for the period $ 1,744 Reclassifications out of accumulated other comprehensive income for the three months ended March 31, 2016 were as follows (in thousands): Amount Reclassified from Accumulated Other Income Affected Line Item in the Statement of Income Realized losses on cash flow hedges, net of tax $ 501 Revenue Realized losses on available-for-sale securities, net of tax 202 Other expense, net Total reclassifications for the period $ 703

Acquisitions And Dispositions

Acquisitions And Dispositions	3 Months Ended
	Mar. 31, 2016
Acquisitions And Dispositions	Note 4 Acquisitions And Dispositions During the three months ended March 31, 2015, the Company acquired one company which was accounted for as a business combination. The total purchase price for this acquisition was $23 million. The purchase price allocation of the assets acquired and liabilities assumed based on their estimated fair values was as follows: $5 million to amortizable intangibles; $4 million to net liabilities assumed; and the remainder of $22 million to goodwill. Goodwill represents the excess of the purchase price over the estimated fair value of the net tangible and identifiable intangible assets acquired and is not deductible for tax purposes. The entire goodwill amount which was recorded in the EMEA segment was subsequently impaired during the fourth quarter of 2015 as a result of the impairment testing performed by the Company on its reporting units as of October 31, 2015. The Company’s business combinations completed during the three months ended March 31, 2015 did not have a material impact on the Company’s condensed consolidated financial statements and therefore actual and pro forma disclosures have not been presented. The Company did not make any acquisitions during the three months ended March 31, 2016. Patent Sale and License Agreement During 2014, the Company entered into a patent sale and license agreement for total cash consideration of $460 million. The total consideration was allocated based on the estimated relative fair value of each of the elements of the agreement: $61 million was allocated to the sale of patents (“Sold Patents”), $135 million to the license to existing patents (“Existing Patents”) and $264 million to the license of patents developed or acquired in the next five years (“Capture Period Patents”). The Company recorded $61 million as a gain on the Sold Patents during 2014. The amounts allocated to the license of the Existing Patents are being recorded as revenue over the four-year payment period under the license when payments are due. The amounts allocated to the Capture Period Patents are being recorded as revenue over the five-year capture period. The Company recognized $22 million in revenue related to the Existing Patents and the Capture Period Patents during both the three months ended March 31, 2015 and 2016. The Company sold certain patents and recorded gains on sales of patents of approximately $2 million for both the three months ended March 31, 2015 and 2016.

Goodwill

Goodwill	3 Months Ended
	Mar. 31, 2016
Goodwill	Note 5 Goodwill The changes in the carrying amount of goodwill for the three months ended March 31, 2016 were as follows (in thousands): Americas (1) EMEA (2) Asia Pacific (3) Total Net balance as of January 1, 2016 $ 518,886 $ - $ 289,228 $ 808,114 Foreign currency translation adjustments - - 7,865 7,865 Net balance as of March 31, 2016 $ 518,886 $ - $ 297,093 $ 815,979 (1) Gross goodwill balance for the Americas segment was $4.4 billion as of March 31, 2016. The Americas segment includes accumulated impairment losses of $3.9 billion as of March 31, 2016. (2) Gross goodwill balance for the EMEA segment was $1.2 billion as of March 31, 2016. The EMEA segment includes accumulated impairment losses of $1.2 billion as of March 31, 2016. (3) Gross goodwill balance for the Asia Pacific segment was $456 million as of March 31, 2016. The Asia Pacific segment includes accumulated impairment losses of $159 million as of March 31, 2016. Given the partial impairment recorded in the Tumblr reporting unit in 2015, it is reasonably possible that changes in judgments, assumptions and estimates the Company made in assessing the fair value of goodwill could cause the Company to consider some portion or all of the remaining goodwill of the Tumblr reporting unit to become impaired. In addition, a future decline in market conditions and/or changes in the Company’s market share could negatively impact the market comparables, estimated future cash flows and discount rates used in the market and income approaches to determine the fair value of the reporting unit and could result in an impairment charge in the foreseeable future.

Intangible Assets, Net

Intangible Assets, Net	3 Months Ended
	Mar. 31, 2016
Intangible Assets, Net	Note 6 Intangible Assets, Net The following table summarizes the Company’s intangible assets, net (in thousands): December 31, 2015 March 31, 2016 Gross Carrying Accumulated Net Amount Amortization (*) Net Customer, affiliate, and advertiser related relationships $ 220,055 $ 355,585 $ (150,763) $ 204,822 Developed technology and patents 86,909 169,978 (95,818) 74,160 Tradenames, trademarks, and domain names 40,305 67,119 (29,850) 37,269 Total intangible assets, net $ 347,269 $ 592,682 $ (276,431) $ 316,251 (*) Cumulative foreign currency translation adjustments, reflecting movement in the currencies of the underlying entities, totaled approximately $18 million as of March 31, 2016. For the three months ended March 31, 2015 and 2016, the Company recognized amortization expense for intangible assets of $34 million and $32 million, respectively, including $14 million in cost of revenue — other for each of the three months ended March 31, 2015 and 2016. Based on the current amount of intangibles subject to amortization, the estimated amortization expense for the remainder of 2016 and each of the succeeding years is as follows: nine months ending December 31, 2016: $84 million; 2017: $104 million; 2018: $84 million; 2019: $43 million; 2020 and cumulatively thereafter: $1 million.

Basic And Diluted Net Income (L

Basic And Diluted Net Income (Loss) Attributable To Yahoo! Inc. Common Stockholders Per Share	3 Months Ended
	Mar. 31, 2016
Basic And Diluted Net Income (Loss) Attributable To Yahoo! Inc. Common Stockholders Per Share	Note 7 Basic And Diluted Net Income (Loss) Attributable To Yahoo! Inc. Common Stockholders Per Share Basic and diluted net income (loss) attributable to Yahoo! Inc. common stockholders per share is computed using the weighted average number of common shares outstanding during the period, excluding net income attributable to participating securities (restricted stock units granted under the Directors’ Stock Plan (the “Directors’ Plan”)). Diluted net income (loss) per share is computed using the weighted average number of common shares and, if dilutive, potential common shares outstanding during the period. Potential common shares are calculated using the treasury stock method and consist of unvested restricted stock and the incremental common shares issuable upon the exercise of stock options. The Company calculates potential tax windfalls and shortfalls by including the impact of deferred tax assets. The Company takes into account the effect on consolidated net income (loss) per share of dilutive securities of entities in which the Company holds equity interests that are accounted for using the equity method. For the three months ended March 31, 2015, potentially dilutive securities representing approximately 2 million shares of common stock were excluded from the computation of diluted earnings per share for these periods because their effect would have been anti-dilutive. The Company has the option to pay cash, issue shares of common stock or any combination thereof for the aggregate amount due upon conversion of the Notes. The Company’s intent is to settle the principal amount of the Notes in cash upon conversion. As a result, upon conversion of the Notes, only the amounts payable in excess of the principal amounts of the Notes are considered in diluted earnings per share under the treasury stock method. The denominator for diluted net income (loss) per share also does not include any effect from the note hedges. In future periods, the denominator for diluted net income (loss) per share will exclude any effect of the note hedges, if their effect would be anti-dilutive. In the event an actual conversion of any or all of the Notes occurs, the shares that would be delivered to the Company under the note hedges are designed to neutralize the dilutive effect of the shares that the Company would issue under the Notes. See Note 11—“Convertible Notes” for additional information. The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended March 31, 2015 2016 Basic: Numerator: Net income (loss) attributable to Yahoo! Inc. $ 21,198 $ (99,232) Net income (loss) attributable to Yahoo! Inc. common stockholders — basic $ 21,198 $ (99,232) Denominator: Weighted average common shares 934,748 945,719 Net income (loss) attributable to Yahoo! Inc. common stockholders per share — basic $ 0.02 $ (0.10) Diluted: Numerator: Net income (loss) attributable to Yahoo! Inc. $ 21,198 $ (99,232) Less: Effect of dilutive securities issued by equity investees (1,194 ) - Net income (loss) attributable to Yahoo! Inc. common stockholders — diluted $ 20,004 $ (99,232) Denominator: Denominator for basic calculation 934,748 945,719 Weighted average effect of Yahoo! Inc. dilutive securities: Restricted stock units 10,913 - Stock options 2,315 - Denominator for diluted calculation 947,976 945,719 Net income (loss) attributable to Yahoo! Inc. common stockholders per share — diluted $ 0.02 $ (0.10)

Investments In Equity Interests

Investments In Equity Interests Accounted For Using The Equity Method Of Accounting	3 Months Ended
	Mar. 31, 2016
Investments In Equity Interests Accounted For Using The Equity Method Of Accounting	Note 8 Investments In Equity Interests Accounted For Using The Equity Method Of Accounting The following table summarizes the Company’s investments in equity interests using the equity method of accounting (dollars in thousands): December 31, Percent March 31, 2016 Percent Yahoo Japan $ 2,496,657 35.5% $ 2,577,137 35.5% Other 6,572 20% - Total $ 2,503,229 $ 2,577,137 Equity Investment in Yahoo Japan The investment in Yahoo Japan is accounted for using the equity method and the total investment, including net tangible assets, identifiable intangible assets, and goodwill, is classified as part of the investments in equity interests balance on the Company’s condensed consolidated balance sheets. The Company records its share of the results of Yahoo Japan, and any related amortization expense, one quarter in arrears within earnings in equity interests in the condensed consolidated statements of operations. The Company makes adjustments to the earnings in equity interests line in the condensed consolidated statements of operations for any material differences between U.S. GAAP and International Financial Reporting Standards (“IFRS”) issued by the International Accounting Standards Board, the standards by which Yahoo Japan’s financial statements are prepared. The fair value of the Company’s ownership interest in the common stock of Yahoo Japan, based on the quoted stock price, was $8.6 billion as of March 31, 2016. The following tables present summarized financial information derived from Yahoo Japan’s consolidated financial statements, which are prepared on the basis of IFRS. The Company has made adjustments to the Yahoo Japan summarized financial information to address differences between IFRS and U.S. GAAP that materially impact the summarized financial information below. Any other differences between U.S. GAAP and IFRS did not have any material impact on the Yahoo Japan’s summarized financial information presented below: Three Months Ended December 31, 2014 2015 (In thousands) Operating data: Revenue $ 941,241 $ 958,861 Gross profit $ 750,984 $ 754,739 Income from operations $ 425,053 $ 344,951 Net income $ 286,793 $ 234,514 Net income attributable to Yahoo Japan $ 284,846 $ 234,663 September 30, December 31, 2015 2015 (In thousands) Balance sheet data: Current assets $ 6,150,688 $ 6,477,767 Long-term assets $ 2,430,699 $ 2,468,873 Current liabilities $ 2,003,960 $ 2,125,388 Long-term liabilities $ 245,834 $ 233,251 Noncontrolling interests $ 165,601 $ 164,560 Under technology and trademark license and other commercial arrangements with Yahoo Japan, the Company records revenue from Yahoo Japan based on a percentage of advertising revenue earned by Yahoo Japan. The Company recorded revenue from Yahoo Japan of approximately $60 million and $62 million for the three months ended March 31, 2015 and 2016, respectively. As of December 31, 2015 and March 31, 2016, the Company had net receivable balances from Yahoo Japan of approximately $37 million and $41 million, respectively. Alibaba Group Equity Investment in Alibaba Group . Technology and Intellectual Property License Agreement (the “TIPLA”).

Foreign Currency Derivative Fin

Foreign Currency Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2016
Foreign Currency Derivative Financial Instruments	Note 9 Foreign Currency Derivative Financial Instruments The Company uses derivative financial instruments, primarily forward contracts and option contracts, to mitigate risk associated with adverse movements in foreign currency exchange rates. The Company records all derivatives in the condensed consolidated balance sheets at fair value, with assets included in prepaid expenses and other current assets or other long-term assets, and liabilities included in accrued expenses and other current liabilities or other long-term liabilities. The Company’s accounting treatment for these instruments is based on whether or not the instruments are designated as a hedging instrument. The effective portions of net investment hedges are recorded in other comprehensive loss as a part of the cumulative translation adjustment. The effective portions of cash flow hedges are recorded in accumulated other comprehensive income until the hedged item is recognized in revenue on the condensed consolidated statements of operations when the underlying hedged revenue is recognized. Any ineffective portions of net investment hedges and cash flow hedges are recorded in other expense, net on the Company’s condensed consolidated statements of operations. For balance sheet hedges, changes in the fair value are recorded in other expense, net on the Company’s condensed consolidated statements of operations. The Company enters into master netting arrangements, which are designed to reduce credit risk by permitting net settlement of foreign exchange contracts with the same counterparty, subject to applicable requirements. The Company presents its derivative assets and liabilities at their gross fair values on the condensed consolidated balance sheets. The Company is not required to pledge, and is not entitled to receive, cash collateral related to these derivative transactions. Designated as Hedging Instruments Net Investment Hedges. Cash Flow Hedges. Not Designated as Hedging Instruments Balance Sheet Hedges. Notional amounts of the Company’s outstanding derivative contracts as of December 31, 2015 and March 31, 2016 were as follows (in millions): December 31, March 31, 2015 2016 Derivatives designated as hedging instruments: Net investment hedge forward and option contracts $ 1,150 $ 849 Cash flow hedge forwards $ 75 $ 72 Derivatives not designated as hedging instruments: Balance sheet hedges $ 225 $ 104 Foreign currency derivative activity for the three months ended March 31, 2015 was as follows (in millions): Gain (Loss) Gain Gain (Loss) Recorded in (Loss) Settlement Recorded in Other Recorded Beginning Payment Other Expense, Comprehensive in Ending Fair Fair Value (Receipt), Net Net Loss Revenue Value Derivatives designated as hedging instruments: Net investment hedges $ 185 $ - $ - $ 4 (*) $ - $ 189 Cash flow hedges $ 8 $ (2 ) $ (1 ) $ (9 ) $ (1 ) $ (5) Derivatives not designated as hedging instruments: Balance sheet hedges $ 4 $ (16 ) $ 23 $ - $ - $ 11 (*) This amount does not reflect the tax impact of $1 million recorded during the three months ended March 31, 2015. The $3 million after tax impact of the gain recorded within other comprehensive loss was included in accumulated other comprehensive income on the Company’s condensed consolidated balance sheets. Foreign currency derivative activity for the three months ended March 31, 2016 was as follows (in millions): Gain (Loss) Gain Gain (Loss) Recorded in (Loss) Settlement Recorded in Other Recorded Beginning Payment Other Expense, Comprehensive in Ending Fair Fair Value (Receipt), Net Net Loss Revenue Value Derivatives designated as hedging instruments: Net investment hedges $ 74 $ (31 ) $ - $ (48 ) (*) $ - $ (5) Cash flow hedges $ 2 $ (1 ) $ - $ (3 ) $ (1 ) $ (3) Derivatives not designated as hedging instruments: Balance sheet hedges $ 2 $ (1 ) $ (2 ) $ - $ - $ (1) (*) This amount does not reflect the tax impact of $17 million recorded during the three months ended March 31, 2016. The $31 million after tax impact of the loss recorded within other comprehensive loss was included in accumulated other comprehensive income on the Company’s condensed consolidated balance sheets. Foreign currency derivative contracts balance sheet location and ending fair value was as follows (in millions): Balance Sheet December 31, March 31, Location 2015 2016 Derivatives designated as hedging instruments: Net investment hedges Asset (1) $ 79 $ 19 Liability (2) $ (5 ) $ (24) Cash flow hedges Asset (1) $ 2 $ - Liability (2) $ - $ (3) Derivatives not designated as hedging instruments: Balance sheet hedges Asset (1) $ 3 $ - Liability (2) $ (1 ) $ (1) (1) Included in prepaid expenses and other current assets or other long-term assets on the condensed consolidated balance sheets. (2) Included in accrued expenses and other current liabilities or other long-term liabilities on the condensed consolidated balance sheets.

Credit Agreement

Credit Agreement	3 Months Ended
	Mar. 31, 2016
Credit Agreement	Note 10 Credit Agreement The Company’s credit agreement with Citibank, N.A., as Administrative Agent entered into on October 19, 2012 (as amended on October 10, 2013, October 9, 2014, and July 24, 2015, the “Credit Agreement”) provides for a $750 million unsecured revolving credit facility, subject to increase of up to $250 million in accordance with its terms. The Credit Agreement terminates on July 22, 2016, unless extended by the parties. As of March 31, 2016, the Company was in compliance with the financial covenants in the Credit Agreement and no amounts were outstanding.

Convertible Notes

Convertible Notes	3 Months Ended
	Mar. 31, 2016
Convertible Notes	Note 11 Convertible Notes 0.00% Convertible Senior Notes As of March 31, 2016, the Company had $1.4 billion in principal amount of Notes outstanding. The Notes are senior unsecured obligations of Yahoo, the Notes do not bear regular interest, and the principal amount of the Notes was issued at par value. The Notes mature on December 1, 2018, unless previously purchased or converted in accordance with their terms prior to such date. The Company may not redeem the Notes prior to maturity. However, holders of the Notes may convert them at certain times and upon the occurrence of certain events in the future, as outlined in the indenture governing the Notes (the “Indenture”). Holders of the Notes who convert in connection with a “make-whole fundamental change,” as defined in the Indenture, may require Yahoo to purchase for cash all or any portion of their Notes at a purchase price equal to 100 percent of the principal amount, plus accrued and unpaid special interest as defined in the Indenture, if any. The Notes are convertible, subject to certain conditions, into shares of Yahoo common stock at an initial conversion rate of 18.7161 shares per $1,000 principal amount of Notes (which is equivalent to an initial conversion price of approximately $53.43 per share), subject to adjustment upon the occurrence of certain events. Upon conversion of the Notes, holders will receive cash, shares of Yahoo’s common stock or a combination thereof, at Yahoo’s election. The Company’s intent is to settle the principal amount of the Notes in cash upon conversion. If the conversion value exceeds the principal amount, the Company would deliver shares of its common stock with respect to the remainder of its conversion obligation in excess of the aggregate principal amount (conversion spread). As of March 31, 2016, none of the conditions allowing holders of the Notes to convert had been met. The Notes consist of the following (in thousands): December 31, March 31, 2015 2016 Liability component: Principal $ 1,437,500 $ 1,437,500 Less: note discount (204,015) (187,725) Net carrying amount $ 1,233,485 $ 1,249,775 Equity component (*) $ 305,569 $ 305,569 (*) Recorded on the condensed consolidated balance sheets within additional paid-in capital. The following table sets forth total interest expense recognized related to the Notes (in thousands): Three Months Ended March 31, 2015 2016 Accretion of convertible note discount $ 15,457 $ 16,290 The fair value of the Notes, which was determined based on inputs that are observable in the market (Level 2), and the carrying value of debt instruments (carrying value excludes the equity component of the Notes classified in equity) were as follows (in thousands): December 31, 2015 March 31, 2016 Fair Value Carrying Value Fair Value Carrying Value Convertible senior notes $ 1,250,124 $ 1,233,485 $ 1,281,518 $ 1,249,775

Commitments And Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2016
Commitments And Contingencies	Note 12 Commitments And Contingencies Lease Commitments . Gross Operating Commitments Sublease Net Operating Commitments Nine months ending December 31, 2016 $ 90 $ (9) $ 81 Years ending December 31, 2017 91 (11) 80 2018 64 (8) 56 2019 49 (6) 43 2020 36 (4) 32 2021 27 (4) 23 Due after 5 years 77 (2) 75 Total gross and net lease commitments $ 434 $ (44) $ 390 Capital Lease Commitments Nine months ending December 31, 2016 $ 11 Years ending December 31, 2017 10 2018 9 2019 5 2020 - 2021 - Due after 5 years - Gross capital lease commitments $ 35 Less: interest 6 Net capital lease commitments included in other accrued expenses and current liabilities and other $ 29 Affiliate Commitments . Non-cancelable Obligations . Intellectual Property Rights . Construction Liabilities. Note Payable Obligations. Standby Letters of Credit. Other Commitments . As of March 31, 2016, the Company did not have any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purpose entities, established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Accordingly, the Company is not exposed to any financing, liquidity, market, or credit risk that could arise if the Company had such relationships. In addition, the Company identified no variable interests currently held in entities for which it is the primary beneficiary. Legal Contingencies General. Patent Matters. Stockholder and Securities Matters. In re Yahoo! Inc. Derivative Shareholder Litigation In re Yahoo! Inc. Shareholder Derivative Litigation On April 22, 2015, a stockholder action captioned Cathy Buch v. David Filo, et al On January 27, 2016, a stockholder action captioned UCFW Local 1500 Pension Fund v. Marissa Mayer, et al Mexico Matters. On November 28, 2012, the 49th Civil Court of Mexico entered a non-final judgment against the Company and Yahoo! Mexico in the amount of USD $2.75 billion and a non-final judgment in favor of Yahoo! Mexico on its counterclaim against WWD in the amount of $2.6 million. The judgment against the Company and Yahoo! Mexico purported to leave open for determination in future proceedings certain other alleged damages that were not quantified in the judgment. On December 12, 2012 and December 13, 2012, respectively, Yahoo! Mexico and the Company appealed the judgment to a three-magistrate panel of the Superior Court of Justice for the Federal District (the “Superior Court”). On May 15, 2013, the Superior Court reversed the judgment, overturned all monetary awards against the Company and reduced the monetary award against Yahoo! Mexico to $172,500. The Superior Court affirmed the award of $2.6 million in favor of Yahoo! Mexico on its counterclaim. Plaintiffs appealed the Superior Court’s decision to the Mexican Federal Civil Collegiate Court for the First Circuit (“Civil Collegiate Court”). The Company appealed the Superior Court’s decision not to award it statutory costs in the underlying proceeding. Yahoo! Mexico appealed the Superior Court’s award of $172,500, the Superior Court’s decision not to award it additional moneys beyond the $2.6 million award on its counterclaims, and the Superior Court’s decision not to award it statutory costs. On January 14, 2015, the Civil Collegiate Court denied all of the appeals. On February 16, 2015, plaintiffs filed a petition for review by the Supreme Court of Mexico, where review is limited to constitutional questions under Mexican law. The plaintiffs’ petition was denied. Plaintiffs then filed an additional petition seeking to reverse the denial through further review. On September 22, 2015, the Supreme Court of Mexico issued its written decision denying that petition. This decision concludes plaintiffs’ appeals in Mexico. On September 10, 2014, the same plaintiffs in the Mexico litigation described above filed an action in U.S. District Court for the Southern District of New York against Yahoo! Inc., Yahoo! Mexico, Baker & McKenzie, and Baker & McKenzie, S.C. Plaintiffs allege that defendants conspired to influence the Mexican courts and “illegally obtain a favorable judgment” in the above litigation. Plaintiffs advance claims for relief under the Racketeer Influenced and Corrupt Organizations Act of 1970 (“RICO”), which provides for treble damages in certain cases, conspiracy to violate RICO, common-law fraud, and civil conspiracy. The Company and Yahoo! Mexico filed a motion to dismiss the amended complaint. On March 31, 2016, the District Court granted the motion and dismissed the amended complaint without leave to amend. TCPA Litigation Concerning Yahoo Messenger. The Company has determined, based on current knowledge, that the amount or range of reasonably possible losses, including reasonably possible losses in excess of amounts already accrued, is not reasonably estimable with respect to certain matters described above. The Company has also determined, based on current knowledge, that the aggregate amount or range of losses that are estimable with respect to the Company’s legal proceedings, including the matters described above, other than the remaining Mexico matter, would not have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows. Amounts accrued as of March 31, 2016 were not material. The Company did not accrue for the judgment in Mexico, which was reversed as explained above. The ultimate outcome of legal proceedings involves judgments, estimates and inherent uncertainties, and cannot be predicted with certainty. In the event of a determination adverse to Yahoo, its subsidiaries, directors, or officers in these matters, the Company may incur substantial monetary liability, and be required to change its business practices. Either of these events could have a material adverse effect on the Company’s financial position, results of operations, or cash flows. The Company may also incur substantial legal fees, which are expensed as incurred, in defending against these claims.

Stockholders' Equity And Employ

Stockholders' Equity And Employee Benefits	3 Months Ended
	Mar. 31, 2016
Stockholders' Equity And Employee Benefits	Note 13 Stockholders’ Equity And Employee Benefits Stock Options . Shares Weighted Average Share Outstanding at December 31, 2015 (1) 6,522 $ 18.82 Options granted - $ - Options exercised (2) (361) $ 13.17 Options expired (417) $ 18.67 Options cancelled/forfeited (306) $ 18.53 Outstanding at March 31, 2016 (1) 5,438 $ 19.22 (1) Includes shares subject to performance-based stock options for which performance goals had not been set as of the date shown. (2) The Company generally issues new shares to satisfy stock option exercises. As of March 31, 2016, there was $20 million of unamortized stock-based compensation expense related to unvested stock options, which is expected to be recognized over a weighted average period of 1.3 years. Restricted Stock and Restricted Stock Units. Shares Weighted Average Fair Value Per Share Awarded and unvested at December 31, 2015 (1) 28,739 $ 39.15 Granted (2) 13,339 $ 33.96 Vested (3,402) $ 29.84 Forfeited (3,132) $ 35.77 Awarded and unvested at March 31, 2016 (1) 35,544 $ 38.39 (1) Includes the maximum number of shares issuable under the Company’s performance-based restricted stock unit awards (including future-year tranches for which performance goals had not been set) as of the date shown. (2) Includes the maximum number of shares issuable under the performance-based restricted stock unit awards granted during the three months ended March 31, 2016 (including future-year tranches for which performance goals had not been set during the period); excludes tranches of previously granted performance-based restricted stock units for which performance goals were set during the three months ended March 31, 2016. As of March 31, 2016, there was $849 million of unamortized stock-based compensation expense related to unvested restricted stock and restricted stock units, which is expected to be recognized over a weighted average period of 2.7 years. During the three months ended March 31, 2015 and 2016, 5.7 million shares and 3.4 million shares, respectively, that were subject to previously granted restricted stock units, vested. These vested restricted stock awards were net share settled. During the three months ended March 31, 2015 and 2016, the Company withheld 2.2 million shares and 1.4 million shares, respectively, based upon the Company’s closing stock price on the vesting date, to satisfy the Company’s tax withholding obligation relating to the employees’ minimum statutory obligation for the applicable income and other employment taxes. The Company then remitted cash to the appropriate taxing authorities. Total payments for the employees’ tax obligations to the relevant taxing authorities were $97 million and $42 million, respectively, for the three months ended March 31, 2015 and 2016 and are reflected as a financing activity within the condensed consolidated statements of cash flows. The payments were used for tax withholdings related to the net share settlements of restricted stock units. The payments had the effect of share repurchases by the Company as they reduced the number of shares that would have otherwise been issued on the vesting date and were recorded as a reduction of additional paid-in capital. Performance Options. Performance RSUs. Stock Repurchases .

Restructuring Charges, Net

Restructuring Charges, Net	3 Months Ended
	Mar. 31, 2016
Restructuring Charges, Net	Note 14 Restructuring Charges, Net Restructuring charges, net consists of employee severance pay and related costs, accelerations of stock-based compensation expense, facility restructuring costs, contract termination and other non-cash charges associated with the exit of facilities, as well as reversals of restructuring charges arising from changes in estimates. For the three months ended March 31, 2015, and 2016, restructuring charges, net was comprised of the following (in thousands): Three Months Ended March 31, 2015 2016 Employee severance pay and related costs $ 44,000 $ 44,796 Non-cancelable lease, contract termination, and other charges 8,617 5,904 Reversals of previous charges (3,231) (1,206) Non-cash accelerations of stock-based compensation expense 2,705 7,374 Other non-cash (credits) charges, net (859) 362 Restructuring charges, net $ 51,232 $ 57,230 The Company has implemented multiple restructuring plans to reduce its cost structure, align resources with its product strategy and improve efficiency, which have resulted in workforce reductions and the consolidation of certain real estate facilities and data centers. For the three months ended March 31, 2015, the Company recorded expense of $41 million, $7 million, and $3 million related to the Americas, EMEA, and Asia Pacific segments, respectively. For the three months ended March 31, 2016, the Company recorded expense of $48 million, $7 million, and $2 million related to the Americas, EMEA, and Asia Pacific segments, respectively. The amounts recorded during the three months ended March 31, 2016 were primarily related to the Company’s announced plans in February 2016 to reduce the Company’s workforce by approximately 15 percent by the end of 2016 and exit six offices in Dubai, Mexico City, Buenos Aires, Madrid, Milan and Burbank, California, subject to applicable laws and consultation processes, as a part of the strategic plan to simplify Yahoo’s product portfolio. During the three months ended March 31, 2016, in connection with this action, the Company incurred pre-tax cash charges of $44 million for severance pay expenses and related cash expenditures, pre-tax cash charges of $3 million related to the consolidation and exit of facilities related to non-cancelable lease costs and other related costs, pre-tax non-cash charges of $7 million related to stock-based compensation expense and less than $1 million related to impairment costs. The Company estimates that it will incur a total of $64 million to $78 million in pre-tax charges in connection with the planned action. The Company’s restructuring accrual activity for the three months ended March 31, 2016 is summarized as follows (in thousands): Accrual balance as of December 31, 2015 $ 65,891 Restructuring charges 57,230 Cash paid (30,906) Non-cash accelerations of stock-based compensation expense (7,374) Foreign currency translation and other adjustments (138) Accrual balance as of March 31, 2016 $ 84,703 The $85 million restructuring liability as of March 31, 2016 consisted of $38 million for employee severance expenses, which the Company expects to pay out by the end of the second quarter of 2017, and $47 million related to non-cancelable lease costs, which the Company expects to pay over the terms of the related obligations through the fourth quarter of 2025, less estimated sublease income. Restructuring accruals by segment consisted of the following (in thousands): December 31, March 31, Americas $ 47,054 $ 64,407 EMEA 18,389 19,356 Asia Pacific 448 940 Total restructuring accruals $ 65,891 $ 84,703

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2016
Income Taxes	Note 15 Income Taxes The Company’s effective tax rate is the result of the mix of income earned and losses incurred in various tax jurisdictions that apply a broad range of income tax rates. Historically, the Company’s provision for income taxes has differed from the tax computed at the U.S. federal statutory income tax rate due to state taxes, the effect of non-U.S. operations, non-deductible stock-based compensation expense, non-deductible acquisition-related costs, and adjustments to unrecognized tax benefits. The Company recorded income tax benefits of $41 million and $35 million for the three months ended March 31, 2015 and 2016, respectively. The income tax benefits for both periods were primarily due to the Company’s loss before income taxes and earnings in equity interests. The relatively lower tax benefit for the three months ended March 31, 2016 compared to the three months ended March 31, 2015, is primarily due to the Company’s limited ability to use foreign tax credits in the current year. As of March 31, 2016, the Company does not anticipate repatriating its undistributed foreign earnings of approximately $3.4 billion. Those earnings are principally related to its equity method investment in Yahoo Japan. If those earnings were to be repatriated in the future, the Company may be subject to additional U.S. income taxes (subject to an adjustment for foreign tax credits). It is not practicable to determine the income tax liability that might be incurred if these earnings were to be repatriated. In the three months ended March 31, 2016, the Company received a cash tax refund of $190 million associated with the Company’s claim to carry back its 2015 losses and tax attributes to earlier taxable years. The Company’s gross amount of unrecognized tax benefits as of March 31, 2016 was $1.1 billion, of which $1.0 billion is recorded on the condensed consolidated balance sheets. The gross unrecognized tax benefits as of March 31, 2016 decreased by $4 million from the recorded balance as of December 31, 2015. The majority of the decrease related to audit settlements in different tax jurisdictions. The Company is in various stages of examination and appeal in connection with its taxes both in the United States and in foreign jurisdictions. Those audits generally span tax years 2005 through 2014. As of March 31, 2016, the Company’s 2011 through 2013 U.S. federal income tax returns are currently under examination. The Company has appealed the proposed California Franchise Tax Board’s adjustments to the 2005 through 2008 returns, but no conclusions have been reached to date. While it is difficult to determine when the examinations will be settled or their final outcomes, certain audits in various jurisdictions are expected to be resolved in the foreseeable future. The Company believes that it has adequately provided for any reasonably foreseeable adverse adjustment to its tax returns and that any settlement will not have a material adverse effect on its consolidated financial position, results of operations, or cash flows. It is reasonably possible that the Company’s unrecognized tax benefits could be reduced by up to approximately $134 million in the next twelve months. In the three months ended March 31, 2015, the Company satisfied the $3.3 billion income tax liability related to the sale by Yahoo! Hong Kong Holdings Limited, the Company’s wholly-owned subsidiary, of Alibaba Group American Depositary Shares (“ADSs”) in the Alibaba Group IPO on September 24, 2014. As of March 31, 2016 the Company accrued deferred tax liabilities of $12.3 billion associated with the 384 million ordinary shares of Alibaba Group (“Alibaba Group shares”) retained by the Company. Such deferred tax liabilities are subject to periodic adjustments due to changes in the fair value of the Alibaba Group shares. The Company may have additional tax liabilities in China related to the sale to Alibaba Group of 523 million Alibaba Group shares that took place during the year ended December 31, 2012 and related to the sale of the 140 million Alibaba Group ADSs sold in the Alibaba Group IPO that took place during the year ended December 31, 2014. Any taxes assessed and paid in China are expected to be ultimately offset and recovered in the United States through the use of foreign tax credits. Tax authorities from the Brazilian State of Sao Paulo have assessed certain indirect taxes against the Company’s Brazilian subsidiary, Yahoo! do Brasil Internet Ltda., related to online advertising services. The assessment is for calendar years 2008 through 2011 and as of March 31, 2016 totals approximately $98 million. The Company currently believes the assessment is without merit. The Company believes the risk of loss is remote and has not recorded an accrual for the assessment.

Segments

Segments	3 Months Ended
	Mar. 31, 2016
Segments	Note 16 Segments The Company continues to manage its business geographically. The primary areas of measurement and decision-making are Americas, EMEA (Europe, Middle East, and Africa), and Asia Pacific. Management relies on an internal reporting process that provides revenue, revenue ex-TAC (which is defined as revenue less cost of revenue – TAC), direct costs excluding TAC by segment, and consolidated loss from operations for making decisions related to the evaluation of the financial performance of, and allocating resources to, the Company’s segments. The following tables present summarized information by segment (in thousands): Three Months Ended March 31, 2015 2016 Revenue by segment: Americas $ 984,721 $ 861,539 EMEA 81,086 76,923 Asia Pacific 160,163 148,690 Total Revenue $ 1,225,970 $ 1,087,152 TAC by segment: Americas $ 166,655 $ 204,871 EMEA 11,704 12,509 Asia Pacific 4,780 10,383 Total TAC $ 183,139 $ 227,763 Revenue ex-TAC by segment: Americas $ 818,066 $ 656,668 EMEA 69,382 64,414 Asia Pacific 155,383 138,307 Total Revenue ex-TAC 1,042,831 859,389 Direct costs by segment (1) Americas 69,274 81,133 EMEA 20,184 20,609 Asia Pacific 50,732 45,079 Global operating costs (2) 673,528 575,980 Gains on sales of patents (2,000) (1,500) Depreciation and amortization 151,539 139,665 Stock-based compensation expense 115,696 108,407 Restructuring charges, net 51,232 57,230 Loss from operations $ (87,354) $ (167,214) (1) Direct costs for each segment include costs associated with the local sales teams and other cost of revenue. (2) Global operating costs include product development, marketing, real estate workplace, general and administrative, and other corporate expenses that are managed on a global basis and that are not directly attributable to any particular segment. Three Months Ended March 31, 2015 2016 Capital expenditures, net: Americas $ 98,914 $ 64,344 EMEA 7,653 4,870 Asia Pacific 4,886 6,885 Total capital expenditures, net $ 111,453 $ 76,099 December 31, March 31, 2016 Property and equipment, net: Americas: U.S. $ 1,447,995 $ 1,396,114 Other 353 943 Total Americas $ 1,448,348 $ 1,397,057 EMEA 33,940 33,773 Asia Pacific 65,035 65,680 Total property and equipment, net $ 1,547,323 $ 1,496,510 See Note 5 — “Goodwill” and Note 14 — “Restructuring Charges, Net” for additional information regarding segments. Enterprise Wide Disclosures The following table presents revenue for groups of similar services (in thousands): Three Months Ended March 31, 2015 2016 Search (*) $ 542,092 $ 491,881 Display (*) 466,938 463,019 Other (*) 216,940 132,252 Total revenue $ 1,225,970 $ 1,087,152 (*) In the three months ended March 31, 2016, the Company reclassified certain amounts from other revenue to either search or display revenue. To conform to the current presentation, the Company reclassified $10.4 million and $3.2 million to search and display revenue, respectively, previously included in other revenue for the three months ended March 31, 2015. Three Months Ended March 31, 2015 2016 Revenue: U.S. $ 963,511 $ 840,799 International 262,459 246,353 Total revenue $ 1,225,970 $ 1,087,152 Revenue is attributed to individual countries according to the online property that generated the revenue. No single foreign country accounted for more than 10 percent of the Company’s revenue for the three months ended March 31, 2015 and 2016.

Search Agreement With Microsoft

Search Agreement With Microsoft Corporation	3 Months Ended
	Mar. 31, 2016
Search Agreement With Microsoft Corporation	Note 17 Search Agreement With Microsoft Corporation On December 4, 2009, the Company entered into the Search and Advertising Services and Sales Agreement (the “Search Agreement”) with Microsoft Corporation (“Microsoft”). On February 18, 2010, the Company received regulatory clearance from both the U.S. Department of Justice and the European Commission and on February 23, 2010 the Company commenced implementation of the Search Agreement on a market-by-market basis. On April 15, 2015, the Company and Microsoft entered into the Eleventh Amendment to the Search Agreement (the “Eleventh Amendment”) pursuant to which the terms of the Search Agreement were amended. Previously under the Search Agreement, Microsoft was the exclusive algorithmic and paid search services provider to Yahoo on personal computers for Yahoo Properties and for search services provided by Yahoo to Affiliate sites. Microsoft was the non-exclusive provider on mobile devices. Pursuant to the Eleventh Amendment, Microsoft will provide such services on a non-exclusive basis for Yahoo Properties and Affiliate sites on all devices. Commencing on May 1, 2015, Yahoo agreed to request paid search results from Microsoft for 51 percent of its search queries originating from personal computers accessing Yahoo Properties and its Affiliate sites (the “Volume Commitment”) and will display only Microsoft’s paid search results on such search result pages. Previously under the Search Agreement, the Company was entitled to receive a percentage of the revenue (the “Revenue Share Rate”) generated from Microsoft’s services on Yahoo Properties and on Affiliate sites after deduction of the Affiliate sites’ share of revenue and certain Microsoft costs. The Revenue Share Rate was 88 percent for the first five years of the Search Agreement and then increased to 90 percent on February 23, 2015. Pursuant to the Eleventh Amendment, the Revenue Share Rate increased to 93 percent, but Microsoft now receives its 7 percent revenue share before deduction of the Affiliate site’s share of revenue. The Affiliate site’s share of revenue is deducted from the Company’s 93 percent Revenue Share Rate. Additionally, pursuant to the Eleventh Amendment, the Company has the ability in response to queries on both personal computers and mobile devices to request algorithmic listings only, paid listings only or both algorithmic and paid listings from Microsoft. To the extent the Company requests algorithmic listings only or requests paid listings but elects not to display such paid listings, the Company pays Microsoft serving costs but not a revenue share. In other cases and with respect to the Volume Commitment, the Revenue Share Rate applies. Previously under the Search Agreement, Yahoo had sales exclusivity for both the Company’s and Microsoft’s premium advertisers. Pursuant to the Eleventh Amendment to the Search Agreement, this sales exclusivity terminated on July 1, 2015. The Company and Microsoft are transitioning premium advertisers for Microsoft’s paid search services to Microsoft on a market-by-market basis. As of March 31, 2016, such transition was substantially complete for most markets in North America and Europe, and the parties are cooperating on transitioning the remaining markets. The term of the Search Agreement is 10 years from its commencement date, February 23, 2010, subject to earlier termination as provided in the Search Agreement. As of October 1, 2015, either the Company or Microsoft may terminate the Search Agreement by delivering a written notice of termination to the other party. The Search Agreement will remain in effect for four months from the date of the termination notice to provide for a transition period; however, the Company’s Volume Commitment will not apply in the third and fourth months of this transition period. The Company currently reports as revenue the revenue share it receives from Microsoft under the Search Agreement as the Company is not the primary obligor in the arrangement with the advertisers and publishers as the underlying search advertising services are provided by Microsoft. Approximately 39 percent, and 29 percent of the Company’s revenue for the three months ended March 31, 2015 and, 2016, respectively, was attributable to the Search Agreement. The Company’s uncollected revenue share in connection with the Search Agreement was $267 million and $216 million, which is included in accounts receivable, net, as of December 31, 2015 and March 31, 2016, respectively. On December 9, 2010, in connection with entering into the Search Agreement, the Company also entered into a License Agreement with Microsoft (as amended, the “License Agreement”). Under the License Agreement, Microsoft acquired an exclusive 10-year license to the Company’s core search technology and has the ability to integrate this technology into its existing web search platforms. Pursuant to the Eleventh Amendment, the exclusive licenses granted to Microsoft under the License Agreement became non-exclusive. The Company also agreed pursuant to the Eleventh Amendment to license certain sales tools to Microsoft to use solely in connection with Microsoft’s paid search services pursuant to the terms of the License Agreement.

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2016
Subsequent Events	Note 18 Subsequent Events On April 21, 2016, the Company entered into a purchase agreement to sell certain property located in Santa Clara, California. The closing of the sale under the purchase agreement is subject to the satisfaction of certain closing conditions. The Company’s carrying value of the property is $126.1 million.

The Company And Summary Of Si26

The Company And Summary Of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2016
Basis of Presentation	Basis of Presentation. The Company revised the consolidated statement of cash flows for the three months ended March 31, 2015 to correct for a non-cash acquisition of property and equipment resulting in an increase in cash used in operating activities of $23 million and a corresponding increase in net cash provided by investing activities. The accompanying unaudited condensed consolidated interim financial statements reflect all adjustments, consisting of only normal recurring items, which, in the opinion of management, are necessary for a fair statement of the results of operations for the periods shown. The results of operations for such periods are not necessarily indicative of the results expected for the full year or for any future periods. The preparation of consolidated financial statements in conformity with generally accepted accounting principles (“GAAP”) in the United States (“U.S.”) requires management to make estimates, judgments, and assumptions that affect the reported amounts of assets, liabilities, revenue, and expenses and the related disclosure of contingent assets and liabilities. On an ongoing basis, the Company evaluates its estimates, including those related to revenue, the useful lives of long-lived assets including property and equipment and intangible assets, investment fair values, originally developed content, acquired content, stock-based compensation, goodwill, income taxes, contingencies, and restructuring charges. The Company bases its estimates of the carrying value of certain assets and liabilities on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, when these carrying values are not readily available from other sources. Actual results may differ from these estimates. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted. The condensed consolidated balance sheet as of December 31, 2015 was derived from the Company’s audited financial statements for the year ended December 31, 2015, but does not include all disclosures required by U.S. GAAP. However, the Company believes the disclosures are adequate to make the information presented not misleading.
Recent Accounting Pronouncements	Recent Accounting Pronouncements . In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities”. The new standard principally affects accounting standards for equity investments, financial liabilities where the fair value option has been elected, and the presentation and disclosure requirements for financial instruments. Upon the effective date of the new standards, all equity investments in unconsolidated entities, other than those accounted for using the equity method of accounting, will generally be measured at fair value through earnings. There will no longer be an available-for-sale classification and therefore, no changes in fair value will be reported in other comprehensive income (loss) for equity securities with readily determinable fair values. The new guidance on the classification and measurement will be effective for public business entities in fiscal years beginning after December 15, 2017, including interim periods within those fiscal years, and early adoption is permitted. The Company is in the process of evaluating the impact of the adoption of ASU 2016-01 on the consolidated financial statements and currently anticipates the new guidance would significantly impact its consolidated statements of operations and consolidated statements of comprehensive income (loss) as the Company’s marketable equity securities, primarily the Company’s investments in Alibaba Group Holding Limited (“Alibaba Group”) and Hortonworks Inc. (“Hortonworks”), are currently classified as available-for-sale and are reported at fair value, with unrealized gains and losses, net of tax, recorded in accumulated other comprehensive income. In February 2016, the FASB issued ASU 2016-02, “Leases” which, for operating leases, requires a lessee to recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in its balance sheet. The standard also requires a lessee to recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term, on a generally straight-line basis. The ASU is effective for public companies for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the effects that the adoption of ASU 2016-02 will have on the Company’s consolidated financial position, results of operations and cash flows and anticipates the new guidance will significantly impact its consolidated financial statements given the Company has a significant number of leases. In March 2016, the FASB issued ASU 2016-06, “Contingent put and call options in debt instruments, a consensus of the FASB’s Emerging Issues Task Force,” which simplifies the embedded derivative analysis for debt instruments containing contingent call or put options. The new guidance clarifies that an exercise contingency does not need to be evaluated to determine whether it relates to interest rates and credit risk in an embedded derivative analysis. A contingent put or call option embedded in a debt instrument would be evaluated for possible separate accounting as a derivative instrument without regard to the nature of the exercise contingency. The ASU is effective for public companies for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted for any interim and annual financial statements that have not yet been issued. The new guidance is required to be applied on a modified retrospective basis to all existing and future debt instruments. An entity will be able to elect the fair value option at transition for the entire debt instrument, including its embedded features, but will not be able to unwind a previously-elected fair value option. The Company is currently evaluating the effects, if any, that the adoption of this guidance will have on the Company’s consolidated financial position, results of operations and cash flows. In March 2016, the FASB issued ASU 2016-07, “Simplifying the Transition to the Equity Method of Accounting,” which eliminates the requirement to apply the equity method of accounting retrospectively when a reporting entity obtains significant influence over a previously held investment in order to reduce recognition and presentation complexity in financial reporting. Instead, the new guidance requires equity method of accounting to be applied prospectively from the date significant influence is obtained. The ASU is effective for public companies for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted for any interim and annual financial statements that have not yet been issued. The new guidance is required to be applied prospectively for investments that qualify for the equity method of accounting after the effective date. The Company is currently evaluating the effects, if any, that the adoption of this guidance will have on the Company’s consolidated financial position, results of operations and cash flows. In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” as part of its simplification initiative, which involves several aspects of accounting for share-based payment transactions, including the income tax effects, statutory withholding requirements, forfeitures, and classification on the statement of cash flows. The ASU is effective for public companies for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. Early adoption is permitted for any interim and annual financial statements that have not been issued. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The Company is currently evaluating the effects, if any, that the adoption of this guidance will have on the Company’s consolidated financial position, results of operations and cash flows.

Marketable Securities, Invest27

Marketable Securities, Investments And Fair Value Disclosures (Tables)	3 Months Ended
	Mar. 31, 2016
Schedule of Available for Sale Securities	The following tables summarize the available-for-sale securities (in thousands): December 31, 2015 Cost Basis Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Government and agency securities $ 616,501 $ 24 $ (635) $ 615,890 Corporate debt securities, commercial paper, time deposits,and bank certificates of deposit 4,589,799 292 (4,908) 4,585,183 Alibaba Group equity securities 2,713,483 28,458,878 - 31,172,361 Hortonworks equity securities 26,246 57,977 - 84,223 Other corporate equity securities 298 - (101) 197 Total available-for-sale marketable securities $ 7,946,327 $ 28,517,171 $ (5,644) $ 36,457,854 March 31, 2016 Cost Basis Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Government and agency securities $ 631,980 $ 263 $ (30) $ 632,213 Corporate debt securities, commercial paper, time deposits, and bank certificates of deposit 5,016,280 3,174 (775) 5,018,679 Alibaba Group equity securities 2,713,483 27,599,692 - 30,313,175 Hortonworks equity securities 26,246 17,212 - 43,458 Other corporate equity securities 7,140 2,331 (91) 9,380 Total available-for-sale marketable securities $ 8,395,129 $ 27,622,672 $ (896) $ 36,016,905
Schedule of Available for Sale Marketable Securities by Balance Sheet Location	December 31, 2015 March 31, 2016 Reported as: Short-term marketable securities $ 4,225,112 $ 4,497,046 Long-term marketable securities 975,961 1,153,846 Investment in Alibaba Group 31,172,361 30,313,175 Other long-term assets and investments 84,420 52,838 Total $ 36,457,854 $ 36,016,905
Schedule of Available for Sale Marketable Securities by Contractual Maturities	The remaining contractual maturities of available-for-sale marketable debt securities were as follows (in thousands): December 31, 2015 March 31, 2016 Due within one year $ 4,225,112 $ 4,497,046 Due after one year through five years 975,961 1,153,846 Total available-for-sale marketable debt securities $ 5,201,073 $ 5,650,892
Available for Sale Marketable Securities in Unrealized Loss Position	The following tables show all available-for-sale marketable debt securities in an unrealized loss position for which an other-than-temporary impairment has not been recognized and the related gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands): December 31, 2015 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Government and agency securities $ 552,041 $ (635) $ - $ - $ 552,041 $ (635) Corporate debt securities, commercial paper, and bank certificates of deposit 2,415,347 (4,763) 99,214 (145) 2,514,561 (4,908) Total available-for-sale marketable debt securities $ 2,967,388 $ (5,398) $ 99,214 $ (145) $ 3,066,602 $ (5,543) March 31, 2016 Less than 12 Months 12 Months or Longer Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss Government and agency securities $ 241,319 $ (30) $ - $ - $ 241,319 $ (30) Corporate debt securities, commercial paper, and bank certificates of deposit 1,032,635 (750) 23,893 (25) 1,056,528 (775) Total available-for-sale marketable debt securities $ 1,273,954 $ (780) $ 23,893 $ (25) $ 1,297,847 $ (805)
Schedule of Fair Value of Financial Assets and Liabilities Measured on Recurring Basis	The following table sets forth the financial assets and liabilities, measured at fair value, by level within the fair value hierarchy as of December 31, 2015 (in thousands): Fair Value Measurements at Reporting Date Using Assets Level 1 Level 2 Level 3 Total Money market funds (1) $ 386,792 $ - $ - $ 386,792 Available-for-sale marketable debt securities: Government and agency securities (1) - 635,917 - 635,917 Commercial paper and bank certificates of deposit (1) - 1,844,494 - 1,844,494 Corporate debt securities (1) - 2,918,496 - 2,918,496 Time deposits (1) - 82,703 - 82,703 Available-for-sale equity securities: Other corporate equity securities (2) 197 - - 197 Alibaba Group equity securities 31,172,361 - - 31,172,361 Hortonworks equity securities (2) 84,223 - - 84,223 Hortonworks warrants - - 78,861 78,861 Foreign currency derivative contracts (3) - 84,319 - 84,319 Financial assets at fair value $ 31,643,573 $ 5,565,929 $ 78,861 $ 37,288,363 Liabilities Foreign currency derivative contracts (3) - (5,661) - (5,661) Total financial assets and liabilities at fair value $ 31,643,573 $ 5,560,268 $ 78,861 $ 37,282,702 The following table sets forth the financial assets and liabilities, measured at fair value, by level within the fair value hierarchy as of March 31, 2016 (in thousands): Fair Value Measurements at Reporting Date Using Assets Level 1 Level 2 Level 3 Total Money market funds (1) $ 512,108 $ - $ - $ 512,108 Available-for-sale marketable debt securities: Government and agency securities (1) - 632,213 - 632,213 Commercial paper and bank certificates of deposit (1) - 2,089,637 - 2,089,637 Corporate debt securities (1) - 2,969,553 - 2,969,553 Time deposits (1) - 52,411 - 52,411 Available-for-sale equity securities: Other corporate equity securities (2) 9,380 - - 9,380 Alibaba Group equity securities 30,313,175 - - 30,313,175 Hortonworks equity securities (2) 43,458 - - 43,458 Hortonworks warrants - - 39,711 39,711 Foreign currency derivative contracts (3) - 19,345 - 19,345 Financial assets at fair value $ 30,878,121 $ 5,763,159 $ 39,711 $ 36,680,991 Liabilities Foreign currency derivative contracts (3) - (27,855) - (27,855) Total financial assets and liabilities at fair value $ 30,878,121 $ 5,735,304 $ 39,711 $ 36,653,136 (1) The money market funds, government and agency securities, commercial paper and bank certificates of deposit, corporate debt securities, and time deposits are classified as part of either cash and cash equivalents or short or long-term marketable securities on the condensed consolidated balance sheets. (2) The Hortonworks equity securities and other corporate equity securities are classified as part of other long-term assets and investments on the condensed consolidated balance sheets. (3) Foreign currency derivative contracts are classified as part of either current or noncurrent assets or liabilities on the condensed consolidated balance sheets. The notional amounts of the foreign currency derivative contracts were: $1.5 billion, including contracts designated as net investment hedges of $1.2 billion, as of December 31, 2015; and $1.0 billion, including contracts designated as net investment hedges of $0.8 billion, as of March 31, 2016.

Consolidated Financial Statem28

Consolidated Financial Statement Details (Tables)	3 Months Ended
	Mar. 31, 2016
Accumulated Other Comprehensive Income	The components of accumulated other comprehensive income were as follows (in thousands): December 31, 2015 March 31, 2016 Unrealized gains on available-for-sale securities, net of tax $ 16,918,539 $ 16,402,205 Unrealized gains (losses) on cash flow hedges, net of tax 482 (1,443) Foreign currency translation, net of tax (342,990) (371,517) Accumulated other comprehensive income $ 16,576,031 $ 16,029,245
Noncontrolling Interests	Noncontrolling interests were as follows (in thousands): March 31, 2015 March 31, 2016 Beginning noncontrolling interests $ 43,755 $ 35,883 Net income attributable to noncontrolling interests 975 942 Ending noncontrolling interests $ 44,730 $ 36,825
Other Expense, Net	Other expense, net was as follows (in thousands): Three Months Ended March 31, 2015 2016 Interest, dividend, and investment income $ 8,845 $ 11,482 Interest expense (17,570) (18,393) Loss on Hortonworks warrants (11,909) (39,150) Foreign exchange losses (11,341) (2,138) Other 912 783 Total other expense, net $ (31,063) $ (47,416)
Reclassifications Out of Accumulated Other Comprehensive Income	Reclassifications out of accumulated other comprehensive income for the three months ended March 31, 2015 were as follows (in thousands): Amount Accumulated Other Comprehensive Income Affected Line Item in the Statement of Income Realized losses on cash flow hedges, net of tax $ 1,660 Revenue Realized losses on available-for-sale securities, net of tax 84 Other expense, net Total reclassifications for the period $ 1,744 Reclassifications out of accumulated other comprehensive income for the three months ended March 31, 2016 were as follows (in thousands): Amount Reclassified from Accumulated Other Income Affected Line Item in the Statement of Income Realized losses on cash flow hedges, net of tax $ 501 Revenue Realized losses on available-for-sale securities, net of tax 202 Other expense, net Total reclassifications for the period $ 703

Goodwill (Tables)

Goodwill (Tables)	3 Months Ended
	Mar. 31, 2016
Schedule Of Goodwill	The changes in the carrying amount of goodwill for the three months ended March 31, 2016 were as follows (in thousands): Americas (1) EMEA (2) Asia Pacific (3) Total Net balance as of January 1, 2016 $ 518,886 $ - $ 289,228 $ 808,114 Foreign currency translation adjustments - - 7,865 7,865 Net balance as of March 31, 2016 $ 518,886 $ - $ 297,093 $ 815,979 (1) Gross goodwill balance for the Americas segment was $4.4 billion as of March 31, 2016. The Americas segment includes accumulated impairment losses of $3.9 billion as of March 31, 2016. (2) Gross goodwill balance for the EMEA segment was $1.2 billion as of March 31, 2016. The EMEA segment includes accumulated impairment losses of $1.2 billion as of March 31, 2016. (3) Gross goodwill balance for the Asia Pacific segment was $456 million as of March 31, 2016. The Asia Pacific segment includes accumulated impairment losses of $159 million as of March 31, 2016.

Intangible Assets, Net (Tables)

Intangible Assets, Net (Tables)	3 Months Ended
	Mar. 31, 2016
Intangible Assets, Net	The following table summarizes the Company’s intangible assets, net (in thousands): December 31, 2015 March 31, 2016 Gross Carrying Accumulated Net Amount Amortization (*) Net Customer, affiliate, and advertiser related relationships $ 220,055 $ 355,585 $ (150,763) $ 204,822 Developed technology and patents 86,909 169,978 (95,818) 74,160 Tradenames, trademarks, and domain names 40,305 67,119 (29,850) 37,269 Total intangible assets, net $ 347,269 $ 592,682 $ (276,431) $ 316,251 (*) Cumulative foreign currency translation adjustments, reflecting movement in the currencies of the underlying entities, totaled approximately $18 million as of March 31, 2016.

Basic And Diluted Net Income 31

Basic And Diluted Net Income (Loss) Attributable To Yahoo! Inc. Common Stockholders Per Share (Tables)	3 Months Ended
	Mar. 31, 2016
Computation of Basic and Diluted Net Income (Loss) Per Share	The following table sets forth the computation of basic and diluted net income (loss) per share (in thousands, except per share amounts): Three Months Ended March 31, 2015 2016 Basic: Numerator: Net income (loss) attributable to Yahoo! Inc. $ 21,198 $ (99,232) Net income (loss) attributable to Yahoo! Inc. common stockholders — basic $ 21,198 $ (99,232) Denominator: Weighted average common shares 934,748 945,719 Net income (loss) attributable to Yahoo! Inc. common stockholders per share — basic $ 0.02 $ (0.10) Diluted: Numerator: Net income (loss) attributable to Yahoo! Inc. $ 21,198 $ (99,232) Less: Effect of dilutive securities issued by equity investees (1,194 ) - Net income (loss) attributable to Yahoo! Inc. common stockholders — diluted $ 20,004 $ (99,232) Denominator: Denominator for basic calculation 934,748 945,719 Weighted average effect of Yahoo! Inc. dilutive securities: Restricted stock units 10,913 - Stock options 2,315 - Denominator for diluted calculation 947,976 945,719 Net income (loss) attributable to Yahoo! Inc. common stockholders per share — diluted $ 0.02 $ (0.10)

Investments In Equity Interes32

Investments In Equity Interests Accounted For Using The Equity Method Of Accounting (Tables)	3 Months Ended
	Mar. 31, 2016
Investments in Equity Interests Accounted For Using Equity Method of Accounting	The following table summarizes the Company’s investments in equity interests using the equity method of accounting (dollars in thousands): December 31, Percent March 31, 2016 Percent Yahoo Japan $ 2,496,657 35.5% $ 2,577,137 35.5% Other 6,572 20% - Total $ 2,503,229 $ 2,577,137
Equity Investment in Yahoo Japan
Summarized Financial Information	The following tables present summarized financial information derived from Yahoo Japan’s consolidated financial statements, which are prepared on the basis of IFRS. The Company has made adjustments to the Yahoo Japan summarized financial information to address differences between IFRS and U.S. GAAP that materially impact the summarized financial information below. Any other differences between U.S. GAAP and IFRS did not have any material impact on the Yahoo Japan’s summarized financial information presented below: Three Months Ended December 31, 2014 2015 (In thousands) Operating data: Revenue $ 941,241 $ 958,861 Gross profit $ 750,984 $ 754,739 Income from operations $ 425,053 $ 344,951 Net income $ 286,793 $ 234,514 Net income attributable to Yahoo Japan $ 284,846 $ 234,663 September 30, December 31, 2015 2015 (In thousands) Balance sheet data: Current assets $ 6,150,688 $ 6,477,767 Long-term assets $ 2,430,699 $ 2,468,873 Current liabilities $ 2,003,960 $ 2,125,388 Long-term liabilities $ 245,834 $ 233,251 Noncontrolling interests $ 165,601 $ 164,560

Foreign Currency Derivative F33

Foreign Currency Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2016
Notional Amounts of Company's Outstanding Derivative Contracts	Notional amounts of the Company’s outstanding derivative contracts as of December 31, 2015 and March 31, 2016 were as follows (in millions): December 31, March 31, 2015 2016 Derivatives designated as hedging instruments: Net investment hedge forward and option contracts $ 1,150 $ 849 Cash flow hedge forwards $ 75 $ 72 Derivatives not designated as hedging instruments: Balance sheet hedges $ 225 $ 104
Foreign Currency Derivative Activity	Foreign currency derivative activity for the three months ended March 31, 2015 was as follows (in millions): Gain (Loss) Gain Gain (Loss) Recorded in (Loss) Settlement Recorded in Other Recorded Beginning Payment Other Expense, Comprehensive in Ending Fair Fair Value (Receipt), Net Net Loss Revenue Value Derivatives designated as hedging instruments: Net investment hedges $ 185 $ - $ - $ 4 (*) $ - $ 189 Cash flow hedges $ 8 $ (2 ) $ (1 ) $ (9 ) $ (1 ) $ (5) Derivatives not designated as hedging instruments: Balance sheet hedges $ 4 $ (16 ) $ 23 $ - $ - $ 11 (*) This amount does not reflect the tax impact of $1 million recorded during the three months ended March 31, 2015. The $3 million after tax impact of the gain recorded within other comprehensive loss was included in accumulated other comprehensive income on the Company’s condensed consolidated balance sheets. Foreign currency derivative activity for the three months ended March 31, 2016 was as follows (in millions): Gain (Loss) Gain Gain (Loss) Recorded in (Loss) Settlement Recorded in Other Recorded Beginning Payment Other Expense, Comprehensive in Ending Fair Fair Value (Receipt), Net Net Loss Revenue Value Derivatives designated as hedging instruments: Net investment hedges $ 74 $ (31 ) $ - $ (48 ) (*) $ - $ (5) Cash flow hedges $ 2 $ (1 ) $ - $ (3 ) $ (1 ) $ (3) Derivatives not designated as hedging instruments: Balance sheet hedges $ 2 $ (1 ) $ (2 ) $ - $ - $ (1) (*) This amount does not reflect the tax impact of $17 million recorded during the three months ended March 31, 2016. The $31 million after tax impact of the loss recorded within other comprehensive loss was included in accumulated other comprehensive income on the Company’s condensed consolidated balance sheets.
Foreign Currency Derivative Contracts Balance Sheet Location and Ending Fair Value	Foreign currency derivative contracts balance sheet location and ending fair value was as follows (in millions): Balance Sheet December 31, March 31, Location 2015 2016 Derivatives designated as hedging instruments: Net investment hedges Asset (1) $ 79 $ 19 Liability (2) $ (5 ) $ (24) Cash flow hedges Asset (1) $ 2 $ - Liability (2) $ - $ (3) Derivatives not designated as hedging instruments: Balance sheet hedges Asset (1) $ 3 $ - Liability (2) $ (1 ) $ (1) (1) Included in prepaid expenses and other current assets or other long-term assets on the condensed consolidated balance sheets. (2) Included in accrued expenses and other current liabilities or other long-term liabilities on the condensed consolidated balance sheets.

Convertible Notes (Tables)

Convertible Notes (Tables)	3 Months Ended
	Mar. 31, 2016
Schedule of Notes	The Notes consist of the following (in thousands): December 31, March 31, 2015 2016 Liability component: Principal $ 1,437,500 $ 1,437,500 Less: note discount (204,015) (187,725) Net carrying amount $ 1,233,485 $ 1,249,775 Equity component (*) $ 305,569 $ 305,569 (*) Recorded on the condensed consolidated balance sheets within additional paid-in capital.
Interest Expense Recognized Related To Notes	The following table sets forth total interest expense recognized related to the Notes (in thousands): Three Months Ended March 31, 2015 2016 Accretion of convertible note discount $ 15,457 $ 16,290
Fair Value and Carrying Value of Notes	The fair value of the Notes, which was determined based on inputs that are observable in the market (Level 2), and the carrying value of debt instruments (carrying value excludes the equity component of the Notes classified in equity) were as follows (in thousands): December 31, 2015 March 31, 2016 Fair Value Carrying Value Fair Value Carrying Value Convertible senior notes $ 1,250,124 $ 1,233,485 $ 1,281,518 $ 1,249,775

Commitments And Contingencies (

Commitments And Contingencies (Tables)	3 Months Ended
	Mar. 31, 2016
Lease Commitments	A summary of gross and net lease commitments as of March 31, 2016 was as follows (in millions): Gross Operating Commitments Sublease Net Operating Commitments Nine months ending December 31, 2016 $ 90 $ (9) $ 81 Years ending December 31, 2017 91 (11) 80 2018 64 (8) 56 2019 49 (6) 43 2020 36 (4) 32 2021 27 (4) 23 Due after 5 years 77 (2) 75 Total gross and net lease commitments $ 434 $ (44) $ 390
Capital Lease Commitment	Capital Lease Commitments Nine months ending December 31, 2016 $ 11 Years ending December 31, 2017 10 2018 9 2019 5 2020 - 2021 - Due after 5 years - Gross capital lease commitments $ 35 Less: interest 6 Net capital lease commitments included in other accrued expenses and current liabilities and other $ 29

Stockholders' Equity And Empl36

Stockholders' Equity And Employee Benefits (Tables)	3 Months Ended
	Mar. 31, 2016
Schedule of Stock Options Activity	Stock option activity under the Company’s Plans for the three months ended March 31, 2016 is summarized as follows (in thousands, except per share amounts): Shares Weighted Average Share Outstanding at December 31, 2015 (1) 6,522 $ 18.82 Options granted - $ - Options exercised (2) (361) $ 13.17 Options expired (417) $ 18.67 Options cancelled/forfeited (306) $ 18.53 Outstanding at March 31, 2016 (1) 5,438 $ 19.22 (1) Includes shares subject to performance-based stock options for which performance goals had not been set as of the date shown. (2) The Company generally issues new shares to satisfy stock option exercises.
Schedule of Restricted Stock and Restricted Stock Units Activity	Restricted stock and restricted stock unit activity under the Plans for the three months ended March 31, 2016 is summarized as follows (in thousands, except per share amounts): Shares Weighted Average Fair Value Per Share Awarded and unvested at December 31, 2015 (1) 28,739 $ 39.15 Granted (2) 13,339 $ 33.96 Vested (3,402) $ 29.84 Forfeited (3,132) $ 35.77 Awarded and unvested at March 31, 2016 (1) 35,544 $ 38.39 (1) Includes the maximum number of shares issuable under the Company’s performance-based restricted stock unit awards (including future-year tranches for which performance goals had not been set) as of the date shown. (2) Includes the maximum number of shares issuable under the performance-based restricted stock unit awards granted during the three months ended March 31, 2016 (including future-year tranches for which performance goals had not been set during the period); excludes tranches of previously granted performance-based restricted stock units for which performance goals were set during the three months ended March 31, 2016.

Restructuring Charges, Net (Tab

Restructuring Charges, Net (Tables)	3 Months Ended
	Mar. 31, 2016
Restructuring Charges, Net	For the three months ended March 31, 2015, and 2016, restructuring charges, net was comprised of the following (in thousands): Three Months Ended March 31, 2015 2016 Employee severance pay and related costs $ 44,000 $ 44,796 Non-cancelable lease, contract termination, and other charges 8,617 5,904 Reversals of previous charges (3,231) (1,206) Non-cash accelerations of stock-based compensation expense 2,705 7,374 Other non-cash (credits) charges, net (859) 362 Restructuring charges, net $ 51,232 $ 57,230
Restructuring Accrual Activity	The Company’s restructuring accrual activity for the three months ended March 31, 2016 is summarized as follows (in thousands): Accrual balance as of December 31, 2015 $ 65,891 Restructuring charges 57,230 Cash paid (30,906) Non-cash accelerations of stock-based compensation expense (7,374) Foreign currency translation and other adjustments (138) Accrual balance as of March 31, 2016 $ 84,703
Restructuring Accruals by Segment	Restructuring accruals by segment consisted of the following (in thousands): December 31, March 31, Americas $ 47,054 $ 64,407 EMEA 18,389 19,356 Asia Pacific 448 940 Total restructuring accruals $ 65,891 $ 84,703

Segments (Tables)

Segments (Tables)	3 Months Ended
	Mar. 31, 2016
Segment Information	The following tables present summarized information by segment (in thousands): Three Months Ended March 31, 2015 2016 Revenue by segment: Americas $ 984,721 $ 861,539 EMEA 81,086 76,923 Asia Pacific 160,163 148,690 Total Revenue $ 1,225,970 $ 1,087,152 TAC by segment: Americas $ 166,655 $ 204,871 EMEA 11,704 12,509 Asia Pacific 4,780 10,383 Total TAC $ 183,139 $ 227,763 Revenue ex-TAC by segment: Americas $ 818,066 $ 656,668 EMEA 69,382 64,414 Asia Pacific 155,383 138,307 Total Revenue ex-TAC 1,042,831 859,389 Direct costs by segment (1) Americas 69,274 81,133 EMEA 20,184 20,609 Asia Pacific 50,732 45,079 Global operating costs (2) 673,528 575,980 Gains on sales of patents (2,000) (1,500) Depreciation and amortization 151,539 139,665 Stock-based compensation expense 115,696 108,407 Restructuring charges, net 51,232 57,230 Loss from operations $ (87,354) $ (167,214) (1) Direct costs for each segment include costs associated with the local sales teams and other cost of revenue. (2) Global operating costs include product development, marketing, real estate workplace, general and administrative, and other corporate expenses that are managed on a global basis and that are not directly attributable to any particular segment.
Capital Expenditures by Segment	Three Months Ended March 31, 2015 2016 Capital expenditures, net: Americas $ 98,914 $ 64,344 EMEA 7,653 4,870 Asia Pacific 4,886 6,885 Total capital expenditures, net $ 111,453 $ 76,099
Property and Equipment, Net by Segment	December 31, March 31, 2016 Property and equipment, net: Americas: U.S. $ 1,447,995 $ 1,396,114 Other 353 943 Total Americas $ 1,448,348 $ 1,397,057 EMEA 33,940 33,773 Asia Pacific 65,035 65,680 Total property and equipment, net $ 1,547,323 $ 1,496,510
Enterprise Wide Disclosures Revenues for Groups of Similar Services	The following table presents revenue for groups of similar services (in thousands): Three Months Ended March 31, 2015 2016 Search (*) $ 542,092 $ 491,881 Display (*) 466,938 463,019 Other (*) 216,940 132,252 Total revenue $ 1,225,970 $ 1,087,152 (*) In the three months ended March 31, 2016, the Company reclassified certain amounts from other revenue to either search or display revenue. To conform to the current presentation, the Company reclassified $10.4 million and $3.2 million to search and display revenue, respectively, previously included in other revenue for the three months ended March 31, 2015. Three Months Ended March 31, 2015 2016 Revenue: U.S. $ 963,511 $ 840,799 International 262,459 246,353 Total revenue $ 1,225,970 $ 1,087,152

Company and Summary of Signific

Company and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Organization and Summary of Significant Accounting Policies [Line Items]
Net cash (used in) provided by operating activities	$ 365,768	$ (2,960,939)
Net cash provided by (used in) investing activities	$ (496,936)	1,721,053
Reclassification Adjustment
Organization and Summary of Significant Accounting Policies [Line Items]
Net cash (used in) provided by operating activities		(23,000)
Net cash provided by (used in) investing activities		$ 23,000

Available for Sale Securities (

Available for Sale Securities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	$ 8,395,129	$ 7,946,327
Gross Unrealized Gains	27,622,672	28,517,171
Gross Unrealized Losses	(896)	(5,644)
Estimated Fair Value, Total available-for-sale marketable securities	36,016,905	36,457,854
Government and agency securities
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	631,980	616,501
Gross Unrealized Gains	263	24
Gross Unrealized Losses	(30)	(635)
Estimated Fair Value, Total available-for-sale marketable securities	632,213	615,890
Corporate Debt Securities, Commercial Paper, Time Deposits, And Bank Certificates Of Deposit
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	5,016,280	4,589,799
Gross Unrealized Gains	3,174	292
Gross Unrealized Losses	(775)	(4,908)
Estimated Fair Value, Total available-for-sale marketable securities	5,018,679	4,585,183
Corporate Equity Securities | Alibaba Group
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	2,713,483	2,713,483
Gross Unrealized Gains	27,599,692	28,458,878
Estimated Fair Value, Total available-for-sale marketable securities	30,313,175	31,172,361
Corporate Equity Securities | Hortonworks, Inc
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	26,246	26,246
Gross Unrealized Gains	17,212	57,977
Estimated Fair Value, Total available-for-sale marketable securities	43,458	84,223
Corporate Equity Securities | Other corporate equity securities
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	7,140	298
Gross Unrealized Gains	2,331
Gross Unrealized Losses	(91)	(101)
Estimated Fair Value, Total available-for-sale marketable securities	$ 9,380	$ 197

Available for Sale Marketable S

Available for Sale Marketable Securities by Balance Sheet Location (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Short-term marketable securities	$ 4,497,046	$ 4,225,112
Long-term marketable securities	1,153,846	975,961
Investment in Alibaba Group	30,313,175	31,172,361
Other long-term assets and investments	52,838	84,420
Total	$ 36,016,905	$ 36,457,854

Marketable Securities Investmen

Marketable Securities Investments and Fair Value Disclosures - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Investments [Line Items]
Cash and cash equivalents	$ 1,479,604	$ 1,174,657	$ 1,631,911	$ 2,664,098
Loss on Hortonworks warrants	(39,150)	(11,909)
Cash deposited with commercial banks
Investments [Line Items]
Cash and cash equivalents	875,000		965,000
Other long-term assets and investments
Investments [Line Items]
Other investments held at cost	$ 83,000		83,000
Convertible Senior Notes
Investments [Line Items]
Principal amount					$ 1,400,000
Convertible senior notes percent	0.00%				0.00%
Maturity date, convertible senior note	Dec. 1, 2018
Hortonworks, Inc
Investments [Line Items]
Warrants	$ 39,711		78,861
Loss on Hortonworks warrants	(39,150)	$ (11,909)
Cash and Cash Equivalents
Investments [Line Items]
Short-term, highly-liquid investments	605,000		667,000
Fair Value Measurements At Reporting Date Using Level 2 | Convertible Senior Notes
Investments [Line Items]
Fair value of the convertible senior notes	$ 1,281,518		$ 1,250,124

Available for Sale Securities b

Available for Sale Securities by Contractual Maturities (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Due within one year	$ 4,497,046	$ 4,225,112
Due after one year through five years	1,153,846	975,961
Total available-for-sale marketable debt securities	$ 5,650,892	$ 5,201,073

Available for Sale Marketable D

Available for Sale Marketable Debt Securities in Unrealized Loss Position (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 1,273,954	$ 2,967,388
Less than 12 Months, Unrealized Loss	(780)	(5,398)
12 Months or Longer, Fair Value	23,893	99,214
12 Months or Longer, Unrealized Loss	(25)	(145)
Total, Fair Value	1,297,847	3,066,602
Total, Unrealized Loss	(805)	(5,543)
Government and agency securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	241,319	552,041
Less than 12 Months, Unrealized Loss	(30)	(635)
Total, Fair Value	241,319	552,041
Total, Unrealized Loss	(30)	(635)
Corporate Debt Securities, Commercial Paper, and Bank Certificates of Deposit
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	1,032,635	2,415,347
Less than 12 Months, Unrealized Loss	(750)	(4,763)
12 Months or Longer, Fair Value	23,893	99,214
12 Months or Longer, Unrealized Loss	(25)	(145)
Total, Fair Value	1,056,528	2,514,561
Total, Unrealized Loss	$ (775)	$ (4,908)

Fair Value of Financial Assets

Fair Value of Financial Assets and Liabilities (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Hortonworks, Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants		$ 39,711	$ 78,861
Fair Value Measurements At Reporting Date Using Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets at fair value		30,878,121	31,643,573
Total financial assets and liabilities at fair value		30,878,121	31,643,573
Fair Value Measurements At Reporting Date Using Level 1 | Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	[1]	512,108	386,792
Fair Value Measurements At Reporting Date Using Level 1 | Corporate Equity Securities | Other corporate equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[2]	9,380	197
Fair Value Measurements At Reporting Date Using Level 1 | Corporate Equity Securities | Alibaba Group
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		30,313,175	31,172,361
Fair Value Measurements At Reporting Date Using Level 1 | Corporate Equity Securities | Hortonworks, Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[2]	43,458	84,223
Fair Value Measurements At Reporting Date Using Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets at fair value		5,763,159	5,565,929
Total financial assets and liabilities at fair value		5,735,304	5,560,268
Fair Value Measurements At Reporting Date Using Level 2 | Government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[1]	632,213	635,917
Fair Value Measurements At Reporting Date Using Level 2 | Commercial Paper And Bank Certificates Of Deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[1]	2,089,637	1,844,494
Fair Value Measurements At Reporting Date Using Level 2 | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[1]	2,969,553	2,918,496
Fair Value Measurements At Reporting Date Using Level 2 | Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[1]	52,411	82,703
Fair Value Measurements At Reporting Date Using Level 2 | Foreign Currency Derivative Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative contracts, assets	[3]	19,345	84,319
Foreign currency derivative contracts, liabilities	[3]	(27,855)	(5,661)
Fair Value Measurements At Reporting Date Using Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets at fair value		39,711	78,861
Total financial assets and liabilities at fair value		39,711	78,861
Fair Value Measurements At Reporting Date Using Level 3 | Hortonworks, Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants		39,711	78,861
Fair Value Measurements At Reporting Date Using Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets at fair value		36,680,991	37,288,363
Total financial assets and liabilities at fair value		36,653,136	37,282,702
Fair Value Measurements At Reporting Date Using Total | Hortonworks, Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants		39,711	78,861
Fair Value Measurements At Reporting Date Using Total | Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	[1]	512,108	386,792
Fair Value Measurements At Reporting Date Using Total | Government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[1]	632,213	635,917
Fair Value Measurements At Reporting Date Using Total | Commercial Paper And Bank Certificates Of Deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[1]	2,089,637	1,844,494
Fair Value Measurements At Reporting Date Using Total | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[1]	2,969,553	2,918,496
Fair Value Measurements At Reporting Date Using Total | Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[1]	52,411	82,703
Fair Value Measurements At Reporting Date Using Total | Corporate Equity Securities | Other corporate equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[2]	9,380	197
Fair Value Measurements At Reporting Date Using Total | Corporate Equity Securities | Alibaba Group
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		30,313,175	31,172,361
Fair Value Measurements At Reporting Date Using Total | Corporate Equity Securities | Hortonworks, Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[2]	43,458	84,223
Fair Value Measurements At Reporting Date Using Total | Foreign Currency Derivative Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative contracts, assets	[3]	19,345	84,319
Foreign currency derivative contracts, liabilities	[3]	$ (27,855)	$ (5,661)
[1]	The money market funds, government and agency securities, commercial paper and bank certificates of deposit, corporate debt securities, and time deposits are classified as part of either cash and cash equivalents or short or long-term marketable securities on the condensed consolidated balance sheets.
[2]	The Hortonworks equity securities and other corporate equity securities are classified as part of other long-term assets and investments on the condensed consolidated balance sheets.
[3]	Foreign currency derivative contracts are classified as part of either current or noncurrent assets or liabilities on the condensed consolidated balance sheets. The notional amounts of the foreign currency derivative contracts were: $1.5 billion, including contracts designated as net investment hedges of $1.2 billion, as of December 31, 2015; and $1.0 billion, including contracts designated as net investment hedges of $0.8 billion, as of March 31, 2016.

Fair Value of Financial Asset46

Fair Value of Financial Assets and Liabilities (Parenthetical) (Detail) - Foreign Currency Derivative Contracts - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative notional amount	$ 1,000	$ 1,500
Designated as Hedging Instrument | Net Investment Hedges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative notional amount	$ 849	$ 1,150

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains on available-for-sale securities, net of tax	$ 16,402,205	$ 16,918,539
Unrealized gains (losses) on cash flow hedges, net of tax	(1,443)	482
Foreign currency translation, net of tax	(371,517)	(342,990)
Accumulated other comprehensive income	$ 16,029,245	$ 16,576,031

Noncontrolling Interests (Detai

Noncontrolling Interests (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Noncontrolling Interest [Line Items]
Beginning noncontrolling interests	$ 35,883	$ 43,755
Net income attributable to noncontrolling interests	942	975
Ending noncontrolling interests	$ 36,825	$ 44,730

Other Expense, Net (Detail)

Other Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Components of Other Income (Expense) [Line Items]
Interest, dividend, and investment income	$ 11,482	$ 8,845
Interest expense	(18,393)	(17,570)
Loss on Hortonworks warrants	(39,150)	(11,909)
Foreign exchange losses	(2,138)	(11,341)
Other	783	912
Total other expense, net	$ (47,416)	$ (31,063)

Consolidated Financial Statem50

Consolidated Financial Statement Details - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Financial Statement Details [Line Items]
Loss on Hortonworks warrants	$ (39,150)	$ (11,909)
Hortonworks, Inc
Financial Statement Details [Line Items]
Loss on Hortonworks warrants	$ (39,150)	$ (11,909)

Reclassifications Out of Accumu

Reclassifications Out of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue	$ 1,087,152	$ 1,225,970
Other expense, net	(47,416)	(31,063)
Net income (loss) attributable to Yahoo! Inc.	(99,232)	21,198
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income (loss) attributable to Yahoo! Inc.	703	1,744
Reclassification out of Accumulated Other Comprehensive Income | Realized losses on cash flow hedges, net of tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue	501	1,660
Reclassification out of Accumulated Other Comprehensive Income | Realized losses on available-for-sale securities, net of tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expense, net	$ 202	$ 84

Acquisitions and Dispositions -

Acquisitions and Dispositions - Additional Information (Detail) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016USD ($)Entity	Mar. 31, 2015USD ($)Entity	Dec. 31, 2014USD ($)	Dec. 31, 2015USD ($)
Business Acquisition [Line Items]
Goodwill	$ 815,979			$ 808,114
Total cash consideration			$ 460,000
Gain on sale of patents	$ 1,500	$ 2,000
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Business combination, number of entities acquired | Entity	0
Sold Patents
Business Acquisition [Line Items]
Total cash consideration			61,000
Gain on sale of patents	$ 2,000	2,000	61,000
Existing Patents
Business Acquisition [Line Items]
Total cash consideration			135,000
Future revenue recognition period	4 years
Capture Period Patents
Business Acquisition [Line Items]
Total cash consideration			$ 264,000
Future revenue recognition period	5 years
Existing Patents and Capture Period Patents
Business Acquisition [Line Items]
Revenue related to patents	$ 22,000	$ 22,000
Europe Middle East Africa Segment | Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Business combination, number of entities acquired | Entity		1
Business combination, total purchase price		$ 23,000
Business combination, amortizable intangible assets		5,000
Business combination, net assumed liabilities		4,000
Goodwill		$ 22,000
Goodwill impairment description	The entire goodwill amount which was recorded in the EMEA segment was subsequently impaired during the fourth quarter of 2015 as a result of the impairment testing performed by the Company on its reporting units as of October 31, 2015.

Goodwill (Detail)

Goodwill (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Goodwill [Line Items]
Beginning balance	$ 808,114
Foreign currency translation adjustments	7,865
Ending balance	815,979
Americas Segment
Goodwill [Line Items]
Beginning balance	518,886	[1]
Ending balance	518,886	[1]
Asia Pacific Segment
Goodwill [Line Items]
Beginning balance	289,228	[2]
Foreign currency translation adjustments	7,865	[2]
Ending balance	$ 297,093	[2]
[1]	Gross goodwill balance for the Americas segment was $4.4 billion as of March 31, 2016. The Americas segment includes accumulated impairment losses of $3.9 billion as of March 31, 2016.
[2]	Gross goodwill balance for the Asia Pacific segment was $456 million as of March 31, 2016. The Asia Pacific segment includes accumulated impairment losses of $159 million as of March 31, 2016.

Goodwill (Parenthetical) (Detai

Goodwill (Parenthetical) (Detail) $ in Millions	Mar. 31, 2016USD ($)
Americas Segment
Goodwill [Line Items]
Gross Goodwill Balance	$ 4,400
Accumulated goodwill impairment	3,900
Europe Middle East Africa Segment
Goodwill [Line Items]
Gross Goodwill Balance	1,200
Accumulated goodwill impairment	1,200
Asia Pacific Segment
Goodwill [Line Items]
Gross Goodwill Balance	456
Accumulated goodwill impairment	$ 159

Intangible Assets Net (Detail)

Intangible Assets Net (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 592,682
Accumulated Amortization	[1]	(276,431)
Net		316,251	$ 347,269
Customer, Affiliate And Advertiser Related Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		355,585
Accumulated Amortization	[1]	(150,763)
Net		204,822	220,055
Developed Technology And Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		169,978
Accumulated Amortization	[1]	(95,818)
Net		74,160	86,909
Tradenames, Trademarks, And Domain Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		67,119
Accumulated Amortization	[1]	(29,850)
Net		$ 37,269	$ 40,305
[1]	Cumulative foreign currency translation adjustments, reflecting movement in the currencies of the underlying entities, totaled approximately $18 million as of March 31, 2016.

Intangible Assets Net (Parenthe

Intangible Assets Net (Parenthetical) (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2016USD ($)
Finite-Lived Intangible Assets [Line Items]
Cumulative foreign currency translation adjustments	$ 18

Intangible Assets, Net - Additi

Intangible Assets, Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 32,288	$ 34,478
Estimated amortization expense for the remainder of 2016	84,000
Estimated amortization expense 2017	104,000
Estimated amortization expense 2018	84,000
Estimated amortization expense 2019	43,000
Estimated amortization expense 2020 and cumulatively thereafter	1,000
Cost of revenue - other
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 14,000	$ 14,000

Basic and Diluted Net Income 58

Basic and Diluted Net Income (Loss) Attributable to Yahoo Inc. Common Stockholders Per Share - Additional Information (Detail) shares in Millions	3 Months Ended
	Mar. 31, 2015shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from computation of earnings per share	2

Computation of Basic and Dilute

Computation of Basic and Diluted Net Income (loss) per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Net income (loss) attributable to Yahoo! Inc.	$ (99,232)	$ 21,198
Net income (loss) attributable to Yahoo! Inc. common stockholders - basic	$ (99,232)	$ 21,198
Weighted average common shares	945,719	934,748
Net income (loss) attributable to Yahoo! Inc. common stockholders per share - basic	$ (0.10)	$ 0.02
Net income (loss) attributable to Yahoo! Inc.	$ (99,232)	$ 21,198
Less: Effect of dilutive securities issued by equity investees		(1,194)
Net income (loss) attributable to Yahoo! Inc. common stockholders - diluted	$ (99,232)	$ 20,004
Denominator for basic calculation	945,719	934,748
Denominator for diluted calculation	945,719	947,976
Net income (loss) attributable to Yahoo! Inc. common stockholders per share - diluted	$ (0.10)	$ 0.02
Restricted Stock Units (RSUs)
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Incremental common shares		10,913
Stock Options
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Incremental common shares		2,315

Investments in Equity Interes60

Investments in Equity Interests (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Investment in equity interests	$ 2,577,137	$ 2,503,229
Equity Investment in Yahoo Japan
Schedule of Equity Method Investments [Line Items]
Investment in equity interests	$ 2,577,137	$ 2,496,657
Percent ownership of common stock as of balance sheet date	35.50%	35.50%
Other
Schedule of Equity Method Investments [Line Items]
Investment in equity interests		$ 6,572
Percent ownership of common stock as of balance sheet date		20.00%

Investments in Equity Interes61

Investments in Equity Interests Using the Equity Method of Accounting - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Alibaba Group
Schedule of Equity Method Investments [Line Items]
Royalty received		$ 69
Royalty payment obligation period end		Sep. 24, 2014
Deferred revenue recognition period		Sep. 18, 2015
Equity Investment in Yahoo Japan
Schedule of Equity Method Investments [Line Items]
Fair value of the company's ownership interest in the common stock of Yahoo Japan	$ 8,600
Revenue received through commercial arrangements with Yahoo Japan	62	$ 60
Receivables balance from Yahoo Japan	$ 41		$ 37

Yahoo Japan Condensed Financial

Yahoo Japan Condensed Financial Information Operating Data (Detail) - Equity Investment in Yahoo Japan - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Revenue	$ 958,861	$ 941,241
Gross profit	754,739	750,984
Income from operations	344,951	425,053
Net income	234,514	286,793
Net income attributable to Yahoo Japan	$ 234,663	$ 284,846

Yahoo Japan Condensed Financi63

Yahoo Japan Condensed Financial Information Balance Sheet Data (Detail) - Equity Investment in Yahoo Japan - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015
Schedule of Equity Method Investments [Line Items]
Current assets	$ 6,477,767	$ 6,150,688
Long-term assets	2,468,873	2,430,699
Current liabilities	2,125,388	2,003,960
Long-term liabilities	233,251	245,834
Noncontrolling interests	$ 164,560	$ 165,601

Notional Amounts of Outstanding

Notional Amounts of Outstanding Forward Contracts (Detail) - Foreign Currency Derivative Contracts - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Derivative [Line Items]
Derivative notional amount	$ 1,000	$ 1,500
Designated as Hedging Instrument | Net Investment Hedges
Derivative [Line Items]
Derivative notional amount	849	1,150
Designated as Hedging Instrument | Cash Flow Hedges
Derivative [Line Items]
Derivative notional amount	72	75
Not Designated as Hedging Instrument | Balance Sheet Hedges
Derivative [Line Items]
Derivative notional amount	$ 104	$ 225

Foreign Currency Forward Contra

Foreign Currency Forward Contracts Activity (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016		Mar. 31, 2015
Derivative [Line Items]
Gain (Loss) Recorded in Other Expense, Net	$ 6,524		$ (18,233)
Designated as Hedging Instrument | Net Investment Hedges
Derivative [Line Items]
Beginning Fair Value	74,000		185,000
Settlement Payment (Receipt),Net	(31,000)
Gain (Loss) Recorded in Other Comprehensive Loss	(48,000)	[1]	4,000	[2]
Ending Fair Value	(5,000)		189,000
Designated as Hedging Instrument | Cash Flow Hedges
Derivative [Line Items]
Beginning Fair Value	2,000		8,000
Settlement Payment (Receipt),Net	(1,000)		(2,000)
Gain (Loss) Recorded in Other Expense, Net			(1,000)
Gain (Loss) Recorded in Revenue	(1,000)		(1,000)
Ending Fair Value	(3,000)		(5,000)
Gain (Loss) Recorded in Other Comprehensive Loss	(3,000)		(9,000)
Not Designated as Hedging Instrument | Balance Sheet Hedges
Derivative [Line Items]
Beginning Fair Value	2,000		4,000
Settlement Payment (Receipt),Net	(1,000)		(16,000)
Gain (Loss) Recorded in Other Expense, Net	(2,000)		23,000
Ending Fair Value	(1,000)		11,000
Gain (Loss) Recorded in Other Comprehensive Loss	$ 0		$ 0
[1]	This amount does not reflect the tax impact of $17 million recorded during the three months ended March 31, 2016. The $31 million after tax impact of the loss recorded within other comprehensive loss was included in accumulated other comprehensive income on the Company's condensed consolidated balance sheets.
[2]	This amount does not reflect the tax impact of $1 million recorded during the three months ended March 31, 2015. The $3 million after tax impact of the gain recorded within other comprehensive loss was included in accumulated other comprehensive income on the Company's condensed consolidated balance sheets.

Foreign Currency Forward Cont66

Foreign Currency Forward Contracts Activity (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Derivative [Line Items]
Net investment hedge CTA gains (losses), taxes	$ 16,931	$ (1,591)
Net investment hedge CTA gains (losses), net of taxes	$ (30,710)	$ 2,634

Foreign Currency Forward Cont67

Foreign Currency Forward Contracts Balance Sheet Location and Ending Fair Value (Detail) - Foreign Currency Derivative Contracts - USD ($) $ in Millions		Mar. 31, 2016	Dec. 31, 2015
Designated as Hedging Instrument | Net Investment Hedges | Assets
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value asset	[1]	$ 19	$ 79
Designated as Hedging Instrument | Net Investment Hedges | Liabilities
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value liability	[2]	(24)	(5)
Designated as Hedging Instrument | Cash Flow Hedges | Assets
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value asset	[1]		2
Designated as Hedging Instrument | Cash Flow Hedges | Liabilities
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value liability	[2]	(3)
Not Designated as Hedging Instrument | Balance Sheet Hedges | Assets
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value asset	[1]		3
Not Designated as Hedging Instrument | Balance Sheet Hedges | Liabilities
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value liability	[2]	$ (1)	$ (1)
[1]	Included in prepaid expenses and other current assets or other long-term assets on the condensed consolidated balance sheets.
[2]	Included in accrued expenses and other current liabilities or other long-term liabilities on the condensed consolidated balance sheets.

Credit Agreement - Additional I

Credit Agreement - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2016USD ($)
Line of Credit Facility [Line Items]
Unsecured revolving credit facility, outstanding	$ 0
After Amendment
Line of Credit Facility [Line Items]
Unsecured revolving credit facility expiration date	Jul. 22, 2016
Unsecured revolving credit facility	$ 750,000,000
Unsecured revolving credit facility, additional commitment	$ 250,000,000

Convertible Notes - Additional

Convertible Notes - Additional Information (Detail) - Convertible Senior Notes - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2013
Debt Instrument [Line Items]
Convertible senior notes percent	0.00%		0.00%
Principal	$ 1,437,500	$ 1,437,500
Conversion rate per $1,000 principal amount of Notes	18.7161
Purchase price of notes as percentage of principal amount, plus accrued and unpaid interest	100.00%
Initial conversion price	$ 53.43
Maturity date, convertible senior note	Dec. 1, 2018

Schedule of Notes (Detail)

Schedule of Notes (Detail) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Net carrying amount		$ 1,249,775	$ 1,233,485
Convertible Senior Notes
Debt Instrument [Line Items]
Principal		1,437,500	1,437,500
Less: note discount		(187,725)	(204,015)
Net carrying amount		1,249,775	1,233,485
Equity component	[1]	$ 305,569	$ 305,569
[1]	Recorded on the condensed consolidated balance sheets within additional paid-in capital.

Interest Expense Recognized Rel

Interest Expense Recognized Related To Notes (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Debt Instrument [Line Items]
Accretion of convertible note discount	$ 16,290	$ 15,457

Fair Value and Carrying Value o

Fair Value and Carrying Value of Notes (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Carrying Value	$ 1,249,775	$ 1,233,485
Convertible Senior Notes
Debt Instrument [Line Items]
Carrying Value	1,249,775	1,233,485
Fair Value Measurements At Reporting Date Using Level 2 | Convertible Senior Notes
Debt Instrument [Line Items]
Fair Value	$ 1,281,518	$ 1,250,124

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	May. 15, 2013USD ($)	Nov. 16, 2011USD ($)	Jan. 31, 2016Defendant	Mar. 31, 2016USD ($)Building	Nov. 28, 2012USD ($)	Dec. 07, 2011USD ($)
Commitments and Contingencies Disclosure [Line Items]
Non-cancelable commitments				$ 159,000,000
Payable in remainder of 2016				77,000,000
Payable in 2017				35,000,000
Payable in 2018				27,000,000
Payable in 2019				7,000,000
Payable in 2020				3,000,000
Payable in 2021				3,000,000
Payable thereafter				7,000,000
Intellectual property arrangements through 2023				$ 13,000,000
Intellectual property arrangements, expiration year				2,023
Standby letters of credit outstanding				$ 40,000,000
Maximum
Commitments and Contingencies Disclosure [Line Items]
Operating and capital lease agreements, original lease period				15 years
Operating and capital lease agreements, expiry year				2,025
Minimum
Commitments and Contingencies Disclosure [Line Items]
Operating and capital lease agreements, expiry year				2,016
Non-Final Judgment
Commitments and Contingencies Disclosure [Line Items]
Counterclaim filed for payments of services rendered					$ 2,600,000
Affiliate Commitments
Commitments and Contingencies Disclosure [Line Items]
Total commitments				$ 1,438,000,000
Payable in the remainder of 2016				282,000,000
Payable in 2017				375,000,000
Payable in 2018				375,000,000
Payable in 2019				375,000,000
Payable in 2020				31,000,000
Construction Liabilities
Commitments and Contingencies Disclosure [Line Items]
Total commitments				20,000,000
Payable in the remainder of 2016				1,000,000
Payable in 2017				2,000,000
Payable in 2018				2,000,000
Payable in 2019				2,000,000
Payable in 2020				2,000,000
Payable in 2021				2,000,000
Payable thereafter				$ 9,000,000
California | Buildings
Commitments and Contingencies Disclosure [Line Items]
Number of buildings obligated to make payments for notes payable | Building				2
Note Payable Obligations				$ 55,000,000
Payable in remainder of 2016				3,000,000
Payable in 2017				5,000,000
Payable in 2018				5,000,000
Payable in 2019				5,000,000
Payable in 2020				5,000,000
Payable in 2021				5,000,000
Payable thereafter				27,000,000
Worldwide directories, SA de CV and Ideas Interactivas, SA de CV | Settled Litigation
Commitments and Contingencies Disclosure [Line Items]
Counterclaim filed for payments of services rendered	$ 2,600,000
Loss Contingency	$ 172,500
Worldwide directories, SA de CV and Ideas Interactivas, SA de CV | Pending Litigation
Commitments and Contingencies Disclosure [Line Items]
Alleged total damages		$ 2,750,000,000
Counterclaim filed for payments of services rendered						$ 2,600,000
TCPA Litigation Concerning Yahoo Messenger
Commitments and Contingencies Disclosure [Line Items]
Number of members comprised in the certified class | Defendant			300,000
Penalty per violation, minimum				500
Penalty per violation, maximum				1,500
Loss contingency, loss in period				$ 1,500

Lease Commitments (Detail)

Lease Commitments (Detail) $ in Millions	Mar. 31, 2016USD ($)
Commitments and Contingencies Disclosure [Line Items]
Gross operating lease commitments, Nine months ending December 31, 2016	$ 90
Gross operating lease commitments, 2017	91
Gross operating lease commitments, 2018	64
Gross operating lease commitments, 2019	49
Gross operating lease commitments, 2020	36
Gross operating lease commitments, 2021	27
Gross operating lease commitments, due after 5 years	77
Total gross operating lease commitments	434
Sublease income, Nine months ending December 31, 2016	(9)
Sublease income, 2017	(11)
Sublease income, 2018	(8)
Sublease income, 2019	(6)
Sublease income, 2020	(4)
Sublease income, 2021	(4)
Sublease income, Due after 5 years	(2)
Total sublease income	(44)
Net operating lease commitments, Nine months ending December 31, 2016	81
Net operating lease commitments, 2017	80
Net operating lease commitments, 2018	56
Net operating lease commitments, 2019	43
Net operating lease commitments, 2020	32
Net operating lease commitments, 2021	23
Net operating lease commitments, Due after 5 years	75
Total net operating lease commitments	$ 390

Capital Lease Commitment (Detai

Capital Lease Commitment (Detail) $ in Millions	Mar. 31, 2016USD ($)
Schedule of Capital Lease Obligations [Line Items]
Nine months ending December 31, 2016	$ 11
Years ending December 31, 2017	10
2,018	9
2,019	5
2,020	0
2,021	0
Due after 5 years	0
Gross capital lease commitments	35
Less: interest	6
Net capital lease commitments included in other accrued expenses and current liabilities and other long-term liabilities	$ 29

Stock Option Activity (Detail)

Stock Option Activity (Detail) - Stock Options shares in Thousands	3 Months Ended
	Mar. 31, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding stock options, Beginning balance | shares	6,522	[1]
Stock options granted during the period | shares	0
Stock options exercised during the period | shares	(361)	[2]
Stock options expired during the period | shares	(417)
Stock options cancelled/forfeited during the period | shares	(306)
Outstanding stock options, Ending balance | shares	5,438	[1]
Weighted average exercise price of options outstanding, Beginning balance | $ / shares	$ 18.82	[1]
Weighted-average exercise price of shares granted during period | $ / shares	0
Weighted-average exercise price of shares exercised during period | $ / shares	13.17	[2]
Weighted-average exercise price of shares expired during period | $ / shares	18.67
Weighted-average exercise price of shares cancelled/forfeited during period | $ / shares	18.53
Weighted average exercise price of options outstanding, Ending balance | $ / shares	$ 19.22	[1]
[1]	Includes shares subject to performance-based stock options for which performance goals had not been set as of the date shown.
[2]	The Company generally issues new shares to satisfy stock option exercises.

Stockholders' Equity and Empl77

Stockholders' Equity and Employee Benefits - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Nov. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payments made to taxing authorities for employees' tax obligations	$ 42,139,000	$ 97,426,000
November 2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock acquired repurchase authorization value						$ 5,000,000,000
Stock repurchase program expiration date	2016-12
Remaining authorized purchase capacity	$ 726,000,000
Repurchases of common stock, shares	0
March 2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock acquired repurchase authorization value		$ 2,000,000,000
Stock repurchase program expiration date	2018-03
Remaining authorized purchase capacity	$ 2,000,000,000
GAAP Revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance metrics for stock option awards	33.3333%
Financial performance metrics for restricted stock units awards	33.3333%
Revenue ex -TAC
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance metrics for stock option awards	33.3333%
Financial performance metrics for restricted stock units awards	33.3333%
Adjusted EBITDA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance metrics for stock option awards	33.3333%
Financial performance metrics for restricted stock units awards	33.3333%
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized stock-based compensation expense	$ 20,000,000
Stock-based compensation, recognition period	1 year 3 months 18 days
Restricted Stock Awards And Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, recognition period	2 years 8 months 12 days
Unamortized stock-based compensation expense	$ 849,000,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested	3,402,000	5,700,000
Shares withheld to settle employees' minimum statutory obligation for applicable income and other employment taxes	1,400,000	2,200,000
Performance Based Stock Options | First Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, recognition period	12 months
Stock options grant date fair value	$ 13,000,000
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, recognition period	12 months
Equity award vesting period	4 years		4 years	4 years	4 years
Performance Based Restricted Stock Units | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity award vesting period	3 years		3 years	3 years	3 years
Performance Based Restricted Stock Units | First Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units grant date fair value	$ 10,000,000
Performance Based Restricted Stock Units | Second Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units grant date fair value	8,000,000
Performance Based Restricted Stock Units | Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units grant date fair value	4,000,000
Performance Based Restricted Stock Units | Fourth Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units grant date fair value	$ 8,000,000
Minimum | Performance Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting percentage for each performance period	0.00%
Minimum | Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting percentage of annual target amount based on performance	0.00%
Maximum | Performance Based Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting percentage for each performance period	100.00%
Maximum | Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting percentage of annual target amount based on performance	200.00%

Restricted Stock Units Activity

Restricted Stock Units Activity (Detail) - Restricted Stock Units (RSUs) - $ / shares shares in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awarded and unvested, Beginning balance	[1]	28,739
Granted	[2]	13,339
Vested		(3,402)	(5,700)
Forfeited		(3,132)
Awarded and unvested, Ending balance	[1]	35,544
Weighted-average grant date fair value per share, Beginning balance	[1]	$ 39.15
Weighted-average grant date fair value per share, granted shares	[2]	33.96
Weighted-average grant date fair value per share, vested shares		29.84
Weighted-average grant date fair value per share, forfeited shares		35.77
Weighted-average grant date fair value per share, Ending balance	[1]	$ 38.39
[1]	Includes the maximum number of shares issuable under the Company's performance-based restricted stock unit awards (including future-year tranches for which performance goals had not been set) as of the date shown.
[2]	Includes the maximum number of shares issuable under the performance-based restricted stock unit awards granted during the three months ended March 31, 2016 (including future-year tranches for which performance goals had not been set during the period); excludes tranches of previously granted performance-based restricted stock units for which performance goals were set during the three months ended March 31, 2016.

Restructuring Charges (Reversal

Restructuring Charges (Reversals), Net (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Employee severance pay and related costs	$ 44,796	$ 44,000
Non-cancelable lease, contract termination, and other charges	5,904	8,617
Reversals of previous charges	(1,206)	(3,231)
Non-cash accelerations of stock-based compensation expense	7,374	2,705
Other non-cash (credits) charges, net	362	(859)
Restructuring charges, net	$ 57,230	$ 51,232

Restructuring Charges (Revers80

Restructuring Charges (Reversals), Net - Additional Information (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)Office	Mar. 31, 2015USD ($)	Dec. 31, 2015USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ 57,230	$ 51,232
Expected workforce reduction, percentage	15.00%
Number of offices to be closed | Office	6
Restructuring liability	$ 84,703		$ 65,891
Maximum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges expected to incur	78,000
Minimum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges expected to incur	64,000
Americas Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	48,000	41,000
Restructuring liability	64,407		47,054
Europe Middle East Africa Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	7,000	7,000
Restructuring liability	19,356		18,389
Asia Pacific Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	2,000	$ 3,000
Restructuring liability	940		$ 448
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring liability	38,000
Employee Severance | Cash Charges
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges incurred	44,000
Lease termination | Cash Charges
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges incurred	3,000
Share Based Compensation | Non-cash Charges
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges incurred	7,000
Impairment Losses | Non-cash Charges | Maximum
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring charges incurred	1,000
Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Restructuring liability	$ 47,000

Restructuring Accrual Activity

Restructuring Accrual Activity (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 65,891
Restructuring charges	57,230	$ 51,232
Cash paid	(30,906)
Non-cash accelerations of stock-based compensation expense	(7,374)	$ (2,705)
Foreign currency translation and other adjustments	(138)
Ending balance	$ 84,703

Restructuring Accrual by Segmen

Restructuring Accrual by Segment (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Total restructuring accruals	$ 84,703	$ 65,891
Americas Segment
Restructuring Cost and Reserve [Line Items]
Total restructuring accruals	64,407	47,054
Europe Middle East Africa Segment
Restructuring Cost and Reserve [Line Items]
Total restructuring accruals	19,356	18,389
Asia Pacific Segment
Restructuring Cost and Reserve [Line Items]
Total restructuring accruals	$ 940	$ 448

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2012
Income Taxes [Line Items]
Income tax benefits	$ 34,766	$ 40,900
Undistributed earnings of foreign subsidiaries	3,400,000
Income tax refund received	190,000
Unrecognized tax benefits	1,100,000
Unrecognized tax benefits recorded on condensed consolidated balance sheets	1,000,000
Increase (decrease) in gross unrecognized tax benefit	(4,000)
Reasonably possible reduction in unrecognized tax benefits in the next twelve months	134,000
Alibaba deferred tax liabilities	12,300,000
Tax payment related to YHK's sale of Alibaba Group ADSs		$ 3,300,000
Tax authorities from the Brazilian State | Foreign Tax Authority
Income Taxes [Line Items]
Indirect tax assessed, not accrued	$ 98,000
Tax authorities from the Brazilian State | Foreign Tax Authority | Earliest Tax Year
Income Taxes [Line Items]
Tax assessment year	2,008
Tax authorities from the Brazilian State | Foreign Tax Authority | Latest Tax Year
Income Taxes [Line Items]
Tax assessment year	2,011
Alibaba Group
Income Taxes [Line Items]
Shares retained by the Company	384
Number of ADSs sold at initial public offering			140
Sale of investments in equity interests, shares				523

Segment Information (Detail)

Segment Information (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Revenue		$ 1,087,152	$ 1,225,970
TAC		227,763	183,139
Revenue ex-TAC		859,389	1,042,831
Global operating costs	[1]	575,980	673,528
Gains on sales of patents		(1,500)	(2,000)
Depreciation and amortization		139,665	151,539
Stock-based compensation expense		108,407	115,696
Restructuring charges, net		57,230	51,232
Loss from operations		(167,214)	(87,354)
Americas Segment
Segment Reporting Information [Line Items]
Revenue		861,539	984,721
TAC		204,871	166,655
Revenue ex-TAC		656,668	818,066
Direct costs by segment	[2]	81,133	69,274
Restructuring charges, net		48,000	41,000
Europe Middle East Africa Segment
Segment Reporting Information [Line Items]
Revenue		76,923	81,086
TAC		12,509	11,704
Revenue ex-TAC		64,414	69,382
Direct costs by segment	[2]	20,609	20,184
Restructuring charges, net		7,000	7,000
Asia Pacific Segment
Segment Reporting Information [Line Items]
Revenue		148,690	160,163
TAC		10,383	4,780
Revenue ex-TAC		138,307	155,383
Direct costs by segment	[2]	45,079	50,732
Restructuring charges, net		$ 2,000	$ 3,000
[1]	Global operating costs include product development, marketing, real estate workplace, general and administrative, and other corporate expenses that are managed on a global basis and that are not directly attributable to any particular segment.
[2]	Direct costs for each segment include costs associated with the local sales teams and other cost of revenue.

Capital Expenditures by Segment

Capital Expenditures by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Total capital expenditures, net	$ 76,099	$ 111,453
Americas Segment
Segment Reporting Information [Line Items]
Total capital expenditures, net	64,344	98,914
Europe Middle East Africa Segment
Segment Reporting Information [Line Items]
Total capital expenditures, net	4,870	7,653
Asia Pacific Segment
Segment Reporting Information [Line Items]
Total capital expenditures, net	$ 6,885	$ 4,886

Property and Equipment Net by S

Property and Equipment Net by Segment (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total property and equipment, net	$ 1,496,510	$ 1,547,323
Americas Segment
Segment Reporting Information [Line Items]
Total property and equipment, net	1,397,057	1,448,348
Americas Segment | United States
Segment Reporting Information [Line Items]
Total property and equipment, net	1,396,114	1,447,995
Americas Segment | Other Americas
Segment Reporting Information [Line Items]
Total property and equipment, net	943	353
Europe Middle East Africa Segment
Segment Reporting Information [Line Items]
Total property and equipment, net	33,773	33,940
Asia Pacific Segment
Segment Reporting Information [Line Items]
Total property and equipment, net	$ 65,680	$ 65,035

Revenues for Groups of Similar

Revenues for Groups of Similar Services (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Revenue from External Customer [Line Items]
Total revenue		$ 1,087,152	$ 1,225,970
Search
Revenue from External Customer [Line Items]
Total revenue	[1]	491,881	542,092
Display
Revenue from External Customer [Line Items]
Total revenue	[1]	463,019	466,938
Other
Revenue from External Customer [Line Items]
Total revenue	[1]	132,252	216,940
United States
Revenue from External Customer [Line Items]
Total revenue		840,799	963,511
International
Revenue from External Customer [Line Items]
Total revenue		$ 246,353	$ 262,459
[1]	In the three months ended March 31, 2016, the Company reclassified certain amounts from other revenue to either search or display revenue. To conform to the current presentation, the Company reclassified $10.4 million and $3.2 million to search and display revenue, respectively, previously included in other revenue for the three months ended March 31, 2015.

Revenues for Groups of Simila88

Revenues for Groups of Similar Services (Parenthetical) (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2015USD ($)
Search | Revenue
Revenue from External Customer [Line Items]
Prior period reclassification adjustment	$ 10.4
Search | Other Revenue
Revenue from External Customer [Line Items]
Prior period reclassification adjustment	(10.4)
Display | Revenue
Revenue from External Customer [Line Items]
Prior period reclassification adjustment	3.2
Display | Other Revenue
Revenue from External Customer [Line Items]
Prior period reclassification adjustment	$ (3.2)

Search Agreement with Microso89

Search Agreement with Microsoft Corporation - Additional Information (Detail) - USD ($) $ in Millions	May. 01, 2015	Apr. 15, 2015	Feb. 23, 2015	Dec. 09, 2010	Feb. 23, 2010	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Search Agreement With Microsoft Corporation [Line Items]
Percentage of search queries originating from personal computers accessing Yahoo Properties and its Affiliate sites that a payment request can be made	51.00%
Revenue share rate from Microsoft's services under the Search Agreement, to be received in first five years						88.00%
Revenue share rate		93.00%	90.00%
Microsoft revenue share rate before deduction of affiliate site's share of revenue		7.00%
Term of search agreement with Microsoft, years					10 years
Percentage of revenue attributable to Search Agreement						29.00%	39.00%
Uncollected Search Agreement revenue						$ 216		$ 267
Term of license of core search technology with Microsoft, years				10 years

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) $ in Millions	Apr. 21, 2016USD ($)
Subsequent Event | California
Subsequent Event [Line Items]
Carrying value of property	$ 126.1