Altaba (AABA) 10-Q 7 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - $ / shares	6 Months Ended
	Jun. 30, 2015	Jul. 31, 2015
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
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 Listing, Par Value Per Share	$ 0.001
Entity Common Stock, Shares Outstanding		941,390,842

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - Entity [Domain] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 1,188,169	$ 2,664,098
Short-term marketable securities	4,636,152	5,327,412
Accounts receivable, net	985,105	1,032,704
Prepaid expenses and other current assets	771,506	673,504
Total current assets	7,580,932	9,697,718
Long-term marketable securities	1,169,671	2,230,892
Property and equipment, net	1,524,539	1,487,684
Goodwill	5,146,579	5,152,570
Intangible assets, net	412,235	470,842
Other long-term assets and investments	475,497	554,616
Investment in Alibaba Group	31,555,927	39,867,789
Investments in equity interests	2,326,436	2,489,578
Total assets	50,191,816	61,951,689
Current liabilities:
Accounts payable	301,433	238,018
Income taxes payable related to sale of Alibaba Group ADSs		3,282,293
Other accrued expenses and current liabilities	903,005	665,828
Deferred revenue	202,246	336,963
Total current liabilities	1,406,684	4,523,102
Convertible notes	1,201,540	1,170,423
Long-term deferred revenue	23,442	20,774
Other long-term liabilities	126,138	143,095
Deferred tax liabilities related to investment in Alibaba Group	12,768,155	16,154,906
Deferred and other long-term tax liabilities	1,102,007	1,153,797
Total liabilities	$ 16,627,966	$ 23,166,097
Commitments and contingencies (Note 12)
Yahoo! Inc. stockholders' equity:
Common stock, $0.001 par value; 5,000,000 shares authorized; 949,771 shares issued and 936,838 shares outstanding as of December 31, 2014 and 956,999 shares issued and 939,850 shares outstanding as of June 30, 2015	$ 953	$ 945
Additional paid-in capital	8,633,143	8,496,683
Treasury stock at cost, 12,933 shares as of December 31, 2014 and 17,149 shares as of June 30, 2015	(913,515)	(712,455)
Retained earnings	8,936,682	8,937,036
Accumulated other comprehensive income	16,875,339	22,019,628
Total Yahoo! Inc. stockholders' equity	33,532,602	38,741,837
Noncontrolling interests	31,248	43,755
Total equity	33,563,850	38,785,592
Total liabilities and equity	$ 50,191,816	$ 61,951,689

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Jun. 30, 2015	Dec. 31, 2014
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	5,000,000	5,000,000
Common stock, shares issued	956,999	949,771
Common stock, shares outstanding	939,850	936,838
Treasury stock at cost, shares	17,149	12,933

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue	$ 1,243,265	$ 1,084,191	$ 2,469,235	$ 2,216,921
Operating expenses:
Cost of revenue - traffic acquisition costs	200,230	43,826	383,369	89,735
Cost of revenue - other	295,932	295,786	581,195	589,389
Sales and marketing	274,304	253,198	549,661	555,523
Product development	306,428	291,778	633,175	560,042
General and administrative	180,595	154,881	354,108	319,504
Amortization of intangibles	19,982	15,164	40,055	33,504
Gains on sales of patents	(9,100)	(61,500)	(11,100)	(61,500)
Restructuring charges, net	19,688	52,621	70,920	62,108
Total operating expenses	1,288,059	1,045,754	2,601,383	2,148,305
Income (loss) from operations	(44,794)	38,437	(132,148)	68,616
Other expense, net	(11,741)	(13,589)	(42,804)	(27,042)
Income (loss) before income taxes and earnings in equity interests	(56,535)	24,848	(174,952)	41,574
Provision for income taxes	(58,495)	(8,143)	(17,595)	(12,360)
Earnings in equity interests, net of tax	95,841	255,852	195,531	557,254
Net income (loss)	(19,189)	272,557	2,984	586,468
Net income attributable to noncontrolling interests	(2,365)	(2,850)	(3,340)	(5,183)
Net income (loss) attributable to Yahoo! Inc.	$ (21,554)	$ 269,707	$ (356)	$ 581,285
Net income (loss) attributable to Yahoo! Inc. common stockholders per share - basic	$ (0.02)	$ 0.27	$ 0	$ 0.58
Net income (loss) attributable to Yahoo! Inc. common stockholders per share - diluted	$ (0.02)	$ 0.26	$ 0	$ 0.55
Shares used in per share calculation - basic	937,569	999,765	936,159	1,004,828
Shares used in per share calculation - diluted	937,569	1,014,692	936,159	1,023,056
Stock-based compensation expense by function:
Stock-based compensation expense by function	$ 125,130	$ 102,445	$ 240,826	$ 211,626
Cost of revenue - other
Stock-based compensation expense by function:
Stock-based compensation expense by function	7,200	5,356	13,209	30,007
Sales and marketing
Stock-based compensation expense by function:
Stock-based compensation expense by function	39,978	31,233	78,099	81,907
Product development
Stock-based compensation expense by function:
Stock-based compensation expense by function	50,762	39,507	98,983	53,434
General and administrative
Stock-based compensation expense by function:
Stock-based compensation expense by function	$ 27,190	$ 26,349	50,535	$ 46,278
Restructuring charges
Stock-based compensation expense by function:
Stock-based compensation expense by function			$ 2,705

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net income (loss)	$ (19,189)	$ 272,557	$ 2,984	$ 586,468
Available-for-sale securities:
Unrealized gains (losses) on available-for-sale securities, net of taxes of $(3,238) and $149,980 for the three months ended June 30, 2014 and 2015, respectively, and $(4,136) and $3,388,114 for the six months ended June 30, 2014 and 2015, respectively	(212,465)	9,788	(4,926,084)	16,516
Reclassification adjustment for realized (gains) losses on available-for-sale securities included in net income, net of taxes of $65 and $49 for the three months ended June 30, 2014 and 2015, respectively, and $73 and $(2) for the six months ended June 30, 2014 and 2015, respectively	(81)	(109)	2	(121)
Net change in unrealized gains on available-for-sale securities, net of tax	(212,546)	9,679	(4,926,082)	16,395
Foreign currency translation adjustments ("CTA"):
Foreign CTA gains (losses), net of taxes of $9,608 and $(128) for the three months ended June 30, 2014 and 2015, respectively, and $2,422 and $454 for the six months ended June 30, 2014 and 2015, respectively	38,140	63,939	(233,102)	(82,918)
Net investment hedge CTA gains (losses), net of taxes of $7,130 and $(9,153) for the three months ended June 30, 2014 and 2015, respectively, and $15,562 and $(10,744) for the six months ended June 30, 2014 and 2015, respectively	15,404	(11,862)	18,038	(25,911)
Net foreign CTA losses, net of tax	53,544	52,077	(215,064)	(108,829)
Cash flow hedges:
Unrealized gains (losses) on cash flow hedges, net of taxes of $127 and $(1,065) for the three months ended June 30, 2014 and 2015, respectively, and $431 and $(689) for the six months ended June 30, 2014 and 2015, respectively	5,875	(1,383)	(5,281)	(1,889)
Reclassification adjustment for realized (gains) losses on cash flow hedges included in net income, net of taxes of $231 and $529 for the three months ended June 30, 2014 and 2015, respectively, and $504 and $718 for the six months ended June 30, 2014 and 2015, respectively	478	(285)	2,138	(739)
Net change in unrealized losses on cash flow hedges, net of tax	6,353	(1,668)	(3,143)	(2,628)
Other comprehensive income (loss)	(152,649)	60,088	(5,144,289)	(95,062)
Comprehensive income (loss)	(171,838)	332,645	(5,141,305)	491,406
Less: comprehensive income attributable to noncontrolling interests	(2,365)	(2,850)	(3,340)	(5,183)
Comprehensive income (loss) attributable to Yahoo! Inc.	$ (174,203)	$ 329,795	$ (5,144,645)	$ 486,223

Condensed Consolidated Stateme6

Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Unrealized gains (losses) on available-for-sale securities, taxes	$ 149,980	$ (3,238)	$ 3,388,114	$ (4,136)
Reclassification adjustment for realized (gains) losses on available-for-sale securities included in net income, taxes	49	65	(2)	73
Foreign CTA gains (losses), taxes	(128)	9,608	454	2,422
Net investment hedge CTA gains (losses), taxes	(9,153)	7,130	(10,744)	15,562
Unrealized gains (losses) on cash flow hedges, taxes	(1,065)	127	(689)	431
Reclassification adjustment for realized (gains) losses on cash flow hedges included in net income, taxes	$ 529	$ 231	$ 718	$ 504

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 2,984	$ 586,468
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	236,694	239,631
Amortization of intangible assets	68,524	64,763
Accretion of convertible notes discount	31,117	29,526
Stock-based compensation expense	243,531	211,626
Non-cash restructuring reversals	(933)	(7,031)
Loss from sales of investments, assets, and other, net	44,847	18,667
Gains on sales of patents	(11,100)	(61,500)
Loss on Hortonworks warrants	6,460
Earnings in equity interests	(195,531)	(557,254)
Tax benefits (detriments) from stock-based awards	(3,617)	76,828
Excess tax benefits from stock-based awards	(1,850)	(79,100)
Deferred income taxes	(13,218)	14,185
Dividends received from equity investee	141,670	83,685
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	32,881	154,129
Prepaid expenses and other assets	(90,078)	13,592
Accounts payable	37,505	(10,075)
Accrued expenses and other liabilities	255,678	(202,142)
Incomes taxes payable related to sale of Alibaba Group ADSs	(3,282,293)
Deferred revenue	(132,790)	(79,523)
Net cash provided by (used in) operating activities	(2,629,519)	496,475
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment, net	(290,363)	(192,013)
Purchases of marketable securities	(2,326,886)	(1,363,836)
Proceeds from sales of marketable securities	473,775	380,954
Proceeds from maturities of marketable securities	3,584,596	690,018
Acquisitions, net of cash acquired	(21,291)	(21,661)
Proceeds from sales of patents	20,000	1,500
Purchases of intangible assets	(4,611)	(2,174)
Proceeds from settlement of derivative hedge contracts	64,767	173,258
Payments for settlement of derivative hedge contracts	(3,882)	(4,616)
Payments for equity investments in privately held companies		(10,399)
Other investing activities, net	(153)	(640)
Net cash (used in) provided by investing activities	1,495,952	(349,609)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	46,777	163,737
Repurchases of common stock	(203,771)	(1,168,206)
Excess tax benefits from stock-based awards	1,850	79,100
Tax withholdings related to net share settlements of restricted stock units	(149,960)	(159,581)
Distributions to noncontrolling interests	(15,847)	(22,344)
Other financing activities, net	(9,015)	(6,130)
Net cash used in financing activities	(329,966)	(1,113,424)
Effect of exchange rate changes on cash and cash equivalents	(12,396)	3,554
Net change in cash and cash equivalents	(1,475,929)	(963,004)
Cash and cash equivalents at beginning of period	2,664,098	2,077,590
Cash and cash equivalents at end of period	$ 1,188,169	$ 1,114,586

The Company And Summary Of Sign

The Company And Summary Of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2015
The Company And Summary Of Significant Accounting Policies	Note 1 The Company And Summary Of Significant Accounting Policies The Company . Basis of Presentation . 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, 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, 2014. 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, 2014 was derived from the Company’s audited financial statements for the year ended December 31, 2014, 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. Cost of revenue — TAC Recent Accounting Pronouncements .

Marketable Securities, Investme

Marketable Securities, Investments And Fair Value Disclosures	6 Months Ended
	Jun. 30, 2015
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, 2014 Cost Basis Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Government and agency securities $ 850,712 $ 82 $ (792 ) $ 850,002 Corporate debt securities, commercial paper, time deposits, and bank certificates of deposit 6,711,683 612 (4,653 ) 6,707,642 Alibaba Group equity securities 2,713,484 37,154,305 - 39,867,789 Hortonworks equity securities 26,246 77,783 - 104,029 Other corporate equity securities 230 430 - 660 Total available-for-sale marketable securities $ 10,302,355 $ 37,233,212 $ (5,445 ) $ 47,530,122 June 30, 2015 Cost Basis Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Government and agency securities $ 804,776 $ 378 $ (41 ) $ 805,113 Corporate debt securities, commercial paper, time deposits, and bank certificates of deposit 5,002,096 721 (2,107 ) 5,000,710 Alibaba Group equity securities 2,713,484 28,842,443 - 31,555,927 Hortonworks equity securities 26,246 71,130 - 97,376 Other corporate equity securities 230 314 - 544 Total available-for-sale marketable securities $ 8,546,832 $ 28,914,986 $ (2,148 ) $ 37,459,670 December 31, June 30, 2014 2015 Reported as: Short-term marketable securities $ 5,327,412 $ 4,636,152 Long-term marketable securities 2,230,892 1,169,671 Investment in Alibaba Group 39,867,789 31,555,927 Other long-term assets and investments 104,029 97,920 Total $ 47,530,122 $ 37,459,670 Short-term, highly liquid investments of $2.0 billion and $518 million as of December 31, 2014 and June 30, 2015, 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 not material as the carrying value approximates estimated 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 and six months ended June 30, 2014 and 2015. The remaining contractual maturities of available-for-sale marketable debt securities were as follows (in thousands): December 31, June 30, 2014 2015 Due within one year $ 5,327,412 $ 4,636,152 Due after one year through five years 2,230,892 1,169,671 Total available-for-sale marketable debt securities $ 7,558,304 $ 5,805,823 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, 2014 Less than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Value Loss Value Loss Value Loss Government and agency securities $ 744,948 $ (792 ) $ - $ - $ 744,948 $ (792 ) Corporate debt securities, commercial paper, and bank certificates of deposit 2,601,288 (4,646 ) 3,234 (7 ) 2,604,522 (4,653 ) Total available-for-sale marketable debt securities $ 3,346,236 $ (5,438 ) $ 3,234 $ (7 ) $ 3,349,470 $ (5,445 ) June 30, 2015 Less than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Value Loss Value Loss Value Loss Government and agency securities $ 133,333 $ (41 ) $ - $ - $ 133,333 $ (41 ) Corporate debt securities, commercial paper, and bank certificates of deposit 2,045,898 (2,107 ) - - 2,045,898 (2,107 ) Total available-for-sale marketable debt securities $ 2,179,231 $ (2,148 ) $ - $ - $ 2,179,231 $ (2,148 ) The Company’s investment portfolio includes equity securities of Alibaba Group Holding Limited (“Alibaba Group”) and Hortonworks, Inc. (“Hortonworks”), as well as liquid high-quality fixed income debt securities including government, agency and corporate debt, money market funds, 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. Investments 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, 2014 (in thousands): Fair Value Measurements at Reporting Date Using Assets Level 1 Level 2 Level 3 Total Money market funds (1) $ 373,822 $ - $ - $ 373,822 Available-for-sale marketable debt securities: Government and agency securities (1) - 850,002 - 850,002 Commercial paper and bank certificates of deposit (1) - 3,602,321 - 3,602,321 Corporate debt securities (1) - 3,327,017 - 3,327,017 Time deposits (1) - 1,361,165 - 1,361,165 Available-for-sale equity securities: Other corporate equity securities (2) 660 - - 660 Alibaba Group equity securities 39,867,789 - - 39,867,789 Hortonworks equity securities (2) 104,029 - - 104,029 Hortonworks warrants - - 98,062 98,062 Foreign currency derivative contracts (3) - 202,928 - 202,928 Financial assets at fair value $ 40,346,300 $ 9,343,433 $ 98,062 $ 49,787,795 Liabilities Foreign currency derivative contracts (3) - (6,157 ) - (6,157 ) Total financial assets and liabilities at fair value $ 40,346,300 $ 9,337,276 $ 98,062 $ 49,781,638 The following table sets forth the financial assets and liabilities, measured at fair value, by level within the fair value hierarchy as of June 30, 2015 (in thousands): Fair Value Measurements at Reporting Date Using Assets Level 1 Level 2 Level 3 Total Money market funds (1) $ 403,419 $ - $ - $ 403,419 Available-for-sale marketable debt securities: Government and agency securities (1) - 805,113 - 805,113 Commercial paper and bank certificates of deposit (1) - 1,982,018 - 1,982,018 Corporate debt securities (1) - 3,059,041 - 3,059,041 Time deposits (1) - 73,988 - 73,988 Available-for-sale equity securities: Other corporate equity securities (2) 544 - - 544 Alibaba Group equity securities 31,555,927 - - 31,555,927 Hortonworks equity securities (2) 97,376 - - 97,376 Hortonworks warrants - - 91,601 91,601 Foreign currency derivative contracts (3) - 181,196 - 181,196 Financial assets at fair value $32,057,266 $ 6,101,356 $ 91,601 $38,250,223 Liabilities Foreign currency derivative contracts (3) - (9,278 ) - (9,278 ) Total financial assets and liabilities at fair value $32,057,266 $ 6,092,078 $ 91,601 $38,240,945 (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 other current or noncurrent assets or liabilities on the condensed consolidated balance sheets. The notional amounts of the foreign currency derivative contracts were: $2.1 billion, including contracts designated as net investment hedges of $1.6 billion, as of December 31, 2014; and $2.3 billion, including contracts designated as net investment hedges of $1.8 billion, as of June 30, 2015. The amount of cash and cash equivalents as of December 31, 2014 and June 30, 2015 included $702 million and $670 million, respectively, in cash. 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 of this Level 3 financial asset was determined using a Black-Scholes model. Activity between Levels of the Fair Value Hierarchy During the year ended December 31, 2014 and the six months ended June 30, 2015, 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 $98 million and $92 million as of December 31, 2014 and June 30, 2015, respectively, which is included in other long-term assets and investments on our condensed consolidated balance sheets. During the three and six months ended June 30, 2015, the Company recorded a gain of $5 million and a loss of $6 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 fair value of the Company’s Level 3 financial asset was determined using a Black-Scholes model. Assets and Liabilities at Fair Value on a Nonrecurring Basis Convertible Senior Notes. Other Investments

Consolidated Financial Statemen

Consolidated Financial Statement Details	6 Months Ended
	Jun. 30, 2015
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, June 30, 2014 2015 Unrealized gains on available-for-sale securities, net of tax $ 22,084,960 $ 17,158,878 Unrealized gains (losses) on cash flow hedges, net of tax 1,856 (1,287 ) Foreign currency translation, net of tax (67,188 ) (282,252 ) Accumulated other comprehensive income $ 22,019,628 $ 16,875,339 Noncontrolling Interests Noncontrolling interests were as follows (in thousands): December 31, June 30, 2014 2015 Beginning noncontrolling interests $ 55,688 $ 43,755 Distributions to noncontrolling interests (22,344 ) (15,847 ) Net income attributable to noncontrolling interests 10,411 3,340 Ending noncontrolling interests $ 43,755 $ 31,248 Other Expense, Net Other expense, net was as follows (in thousands): Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, 2014 2015 2014 2015 Interest, dividend and investment income $ 5,596 $ 8,034 $ 11,033 $ 16,879 Interest expense (17,088 ) (17,558 ) (34,169 ) (35,128 ) Gain (loss) on Hortonworks warrants - 5,449 - (6,460 ) Other (2,097 ) (7,666 ) (3,906 ) (18,095 ) Total other expense, net $ (13,589 ) $ (11,741 ) $ (27,042 ) $ (42,804 ) 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, interest expense on notes payable related to building and capital lease obligations for data centers. During the three and six months ended June 30, 2015, the Company recorded a gain of $5 million and a loss of $6 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 condensed consolidated statements of operations. Other consists of gains and losses from sales or impairments of marketable securities and/or investments in privately-held companies, 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 increased $6 million for the three months ended June 30, 2015, compared to the same period of 2014, primarily due to foreign exchange losses from hedging activities of $11 million offset by unrealized foreign exchange currency transaction gains of $8 million. Other increased $14 million for the six months ended June 30, 2015, compared to the same period of 2014, primarily due to unrealized foreign exchange currency transaction losses of $25 million partially offset by foreign exchange gains from hedging activities of $12 million. Reclassifications Out of Accumulated Other Comprehensive Income Reclassifications out of accumulated other comprehensive income for the three months ended June 30, 2014 and 2015 were as follows (in thousands): Three Months Ended June 30, 2014 June 30, 2015 Reclassified from Reclassified from Accumulated Accumulated Other Other Comprehensive Comprehensive Affected Line Item in the Income Income Statement of Income Realized (gains) losses on cash flow hedges, net of tax $ (285 ) $ 478 Revenue Realized (gains) losses on available-for-sale securities, net of tax (109 ) (81 ) Other income, net Total reclassifications for the period $ (394 ) $ 397 Reclassifications out of accumulated other comprehensive income for the six months ended June 30, 2014 and 2015 were as follows (in thousands): Six Months Ended June 30, June 30, 2014 2015 Reclassified from Reclassified from Accumulated Accumulated Other Other Comprehensive Comprehensive Affected Line Item in the Income Income Statement of Income Realized (gains) losses on cash flow hedges, net of tax $ (739 ) $ 2,138 Revenue Realized (gains) losses on available-for-sale securities, net of tax (121 ) 2 Other income, net Total reclassifications for the period $ (860 ) $ 2,140

Acquisitions and Dispositions

Acquisitions and Dispositions	6 Months Ended
	Jun. 30, 2015
Acquisitions and Dispositions	Note 4 Acquisitions and Dispositions Transactions Completed in 2014. Transactions Completed in 2015. The Company’s business combinations completed during the six months ended June 30, 2014 and 2015 did not have a material impact on the Company’s condensed consolidated financial statements and therefore actual and proforma disclosures have not been presented. Patent Sale and License Agreement. During the three and six months ended June 30, 2015, the Company sold certain patents and recorded gains on sales of patents of approximately $9 million and $11 million, respectively, and during the three and six months ended June 30, 2014 the Company sold certain patents and recorded gains on sales of patents of approximately $62 million.

Goodwill

Goodwill	6 Months Ended
	Jun. 30, 2015
Goodwill	Note 5 Goodwill The changes in the carrying amount of goodwill for the six months ended June 30, 2015 were as follows (in thousands): Americas (1) EMEA (2) Asia Pacific (3) Total Net balance as of January 1, 2015 $ 4,322,219 $ 532,469 $ 297,882 $ 5,152,570 Acquisitions - 20,249 - 20,249 Foreign currency translation adjustments (1,110) (22,169) (2,961) (26,240) Net balance as of June 30, 2015 $ 4,321,109 $ 530,549 $ 294,921 $ 5,146,579 (1) Gross goodwill balance for the Americas segment was $4.3 billion as of June 30, 2015. (2) Gross goodwill balance for the EMEA segment was $1.2 billion as of June 30, 2015. The EMEA segment includes accumulated impairment losses of $630 million as of June 30, 2015. (3) Gross goodwill balance for the Asia Pacific segment was $454 million as of June 30, 2015. The Asia Pacific segment includes accumulated impairment losses of $159 million as of June 30, 2015.

Intangible Assets, Net

Intangible Assets, Net	6 Months Ended
	Jun. 30, 2015
Intangible Assets, Net	Note 6 Intangible Assets, Net The following table summarizes the Company’s intangible assets, net (in thousands): December 31, 2014 June 30, 2015 Net Gross Carrying Amount Accumulated Amortization (*) Net Customer, affiliate, and advertiser related relationships $ 281,596 $ 363,500 $ (111,038) $ 252,462 Developed technology and patents 122,674 202,354 (103,538) 98,816 Trade names, trademarks, and domain names 66,572 107,939 (46,982) 60,957 Total intangible assets, net $ 470,842 $ 673,793 $ (261,558) $ 412,235 (*) Cumulative foreign currency translation adjustments, reflecting movement in the currencies of the underlying entities, increased total intangible assets by approximately $18 million as of June 30, 2015. For the three months ended June 30, 2014 and 2015, the Company recognized amortization expense for intangible assets of $30 million and $34 million, respectively, including $15 million and $14 million in cost of revenue — other for the three months ended June 30, 2014 and 2015, respectively. For the six months ended June 30, 2014 and 2015, the Company recognized amortization expense for intangible assets of $65 million and $68 million, respectively, including $31 million and $28 million in cost of revenue — other for the six months ended June 30, 2014 and 2015, respectively. Based on the current amount of intangibles subject to amortization, the estimated amortization expense for the remainder of 2015 and each of the succeeding years is as follows: six months ending December 31, 2015: $65 million; 2016: $108 million; 2017: $99 million; 2018: $80 million; 2019: $43 million; 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	6 Months Ended
	Jun. 30, 2015
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 shares underlying unvested restricted stock units, the incremental common shares issuable upon the exercise of stock options, and shares to be purchased under the 1996 Employee Stock Purchase Plan (the “Employee Stock Purchase Plan”). The Company calculates potential tax windfalls and shortfalls by including the impact of pro forma 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. Potentially dilutive securities representing approximately 7 million and 4 million shares of common stock for the three and six months ended June 30, 2014, respectively, and 1 million shares of common stock for both the three and six months ended June 30, 2015, respectively, 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 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 Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Basic: Numerator: Net income (loss) attributable to Yahoo! Inc. $ 269,707 $ (21,554) $ 581,285 $ (356) Less: Net income allocated to participating securities (2) - (5) - Net income (loss) attributable to Yahoo! Inc. common stockholders — basic $ 269,705 $ (21,554) $ 581,280 $ (356) Denominator: Weighted average common shares 999,765 937,569 1,004,828 936,159 Net income (loss) attributable to Yahoo! Inc. common stockholders per share — basic $ 0.27 $ (0.02) $ 0.58 $ (0.00) Diluted: Numerator: Net income (loss) attributable to Yahoo! Inc. $ 269,707 $ (21,554) $ 581,285 $ (356) Less: Net income allocated to participating securities (2) - (5) - Less: Effect of dilutive securities issued by equity investees (9,421) (1,125) (21,786) (2,319) Net income (loss) attributable to Yahoo! Inc. common stockholders — diluted $ 260,284 $ (22,679) $ 559,494 $ (2,675) Denominator: Denominator for basic calculation 999,765 937,569 1,004,828 936,159 Weighted average effect of Yahoo! Inc. dilutive securities: Restricted stock units 10,855 - 13,262 - Stock options and employee stock purchase plan 4,072 - 4,966 - Denominator for diluted calculation 1,014,692 937,569 1,023,056 936,159 Net income (loss) attributable to Yahoo! Inc. common stockholders per share — diluted $ 0.26 $ (0.02) $ 0.55 $ (0.00)

Condensed Financial Information

Condensed Financial Information	6 Months Ended
	Jun. 30, 2015
Condensed Financial Information	Note 8 Investments In Equity Interests 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, 2014 Percent Ownership June 30, 2015 Percent Ownership Yahoo Japan $ 2,482,660 35.5 % $ 2,319,586 35.5 % Other 6,918 20 % 6,850 20 % Total $ 2,489,578 $ 2,326,436 Equity Investment in Yahoo Japan The investment in Yahoo Japan Corporation (“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 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 approximately $8 billion as of June 30, 2015. During the three and six months ended June 30, 2014 and 2015, the Company received cash dividends from Yahoo Japan in the amount of $84 million and $142 million, net of withholding taxes, respectively, which were recorded as reductions to the Company’s investment in Yahoo Japan. During the six months ended June 30, 2014, the Company sold data center assets and assigned a data center lease to Yahoo Japan for cash proceeds of $11 million and recorded a net gain of approximately $5 million. 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 financial information to address differences between IFRS and U.S. GAAP that materially impact the summarized financial information below. Due to these adjustments, the Yahoo Japan summarized financial information presented below is not materially different than such information presented on the basis of U.S. GAAP. Three Months Ended Six Months Ended March 31, 2014 March 31, 2015 March 31, 2014 March 31, 2015 (In thousands) Operating data: Revenue $ 1,055,064 $ 987,417 $ 2,086,720 $ 1,928,658 Gross profit $ 861,258 $ 790,966 $ 1,705,184 $ 1,541,950 Income from operations $ 477,945 $ 438,166 $ 967,387 $ 863,219 Net income $ 314,029 $ 274,721 $ 621,141 $ 561,514 Net income attributable to Yahoo Japan $ 311,182 $ 274,129 $ 615,527 $ 558,975 September 30, 2014 March 31, 2015 (In thousands) Balance sheet data: Current assets $ 6,161,126 $ 6,303,704 Long-term assets $ 1,908,379 $ 2,203,642 Current liabilities $ 1,948,540 $ 2,014,409 Long-term liabilities $ 35,418 $ 228,902 Noncontrolling interests $ 66,998 $ 171,849 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 $64 million and $55 million for the three months ended June 30, 2014 and 2015, respectively, and approximately $132 million and $115 million for the six months ended June 30, 2014 and 2015, respectively. The revenue from Yahoo Japan for the three and six months ended June 30, 2015 was impacted by unfavorable foreign exchange fluctuations. As of December 31, 2014 and June 30, 2015, the Company had net receivable balances from Yahoo Japan of approximately $47 million and $35 million, respectively. Alibaba Group Equity Investment in Alibaba Group . See Note 2 — “Marketable Securities, Investments And Fair Value Disclosures” for additional information. Technology and Intellectual Property License Agreement (the “TIPLA”) . Spin-Off of Remaining Holdings in Alibaba Group. The completion of the transaction is expected to occur in the fourth quarter of 2015. The transaction is subject to certain conditions, including final approval by the Company’s Board of Directors, receipt of a favorable ruling from the Internal Revenue Service regarding certain aspects of the transaction and a legal opinion with respect to the tax-free treatment of the transaction, under U.S. federal tax laws and regulations, the effectiveness of an applicable registration statement with the SEC and compliance with the requirements under the Investment Company Act of 1940, and other customary conditions. Each of the conditions may be waived, in whole or in part (to the extent permitted by law), by the Company in its sole discretion. The Company has reserved the right, in its sole and absolute discretion, to abandon or modify the terms of the transaction at any time prior to the distribution date, even if the conditions to the transaction have been satisfied. The composition of Aabaco’s independent board of directors and management team, and other details of the transaction, including the distribution ratio, will be determined prior to the completion of the transaction. Upon completion of the transaction, which is subject to the satisfaction or waiver of the conditions specified above, the Company’s consolidated financial position will be materially impacted as the Alibaba Group shares and related deferred tax liabilities will be removed from the Company’s consolidated balance sheet with a corresponding reduction of its stockholders’ equity balance. The Company would no longer hold any Alibaba Group shares and would no longer record changes in fair value within comprehensive income (loss).
Yahoo Japan
Condensed 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 financial information to address differences between IFRS and U.S. GAAP that materially impact the summarized financial information below. Due to these adjustments, the Yahoo Japan summarized financial information presented below is not materially different than such information presented on the basis of U.S. GAAP. Three Months Ended Six Months Ended March 31, 2014 March 31, 2015 March 31, 2014 March 31, 2015 (In thousands) Operating data: Revenue $ 1,055,064 $ 987,417 $ 2,086,720 $ 1,928,658 Gross profit $ 861,258 $ 790,966 $ 1,705,184 $ 1,541,950 Income from operations $ 477,945 $ 438,166 $ 967,387 $ 863,219 Net income $ 314,029 $ 274,721 $ 621,141 $ 561,514 Net income attributable to Yahoo Japan $ 311,182 $ 274,129 $ 615,527 $ 558,975 September 30, 2014 March 31, 2015 (In thousands) Balance sheet data: Current assets $ 6,161,126 $ 6,303,704 Long-term assets $ 1,908,379 $ 2,203,642 Current liabilities $ 1,948,540 $ 2,014,409 Long-term liabilities $ 35,418 $ 228,902 Noncontrolling interests $ 66,998 $ 171,849

Foreign Currency Derivative Fin

Foreign Currency Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2015
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 income 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 income, net on the Company’s condensed consolidated statements of operations. For balance sheet hedges, changes in the fair value are recorded in other income, 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 transactions with the same counterparty. The Company presents its derivative assets and liabilities at their gross fair values on the condensed consolidated balance sheets. However, under the master netting arrangements with the respective counterparties of the foreign exchange contracts, subject to applicable requirements, the Company is allowed to net settle transactions. 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 were as follows (in millions): December 31, 2014 June 30, 2015 Derivatives designated as hedging instruments: Net investment hedge forward and option contracts $ 1,647 $ 1,802 Cash flow hedge forwards $ 222 $ 117 Derivatives not designated as hedging instruments: Balance sheet hedges $ 243 $ 415 Foreign currency derivative activity for the six months ended June 30, 2014 was as follows (in millions): Beginning Fair Value Settlement Payment (Receipt) Gain (Loss) Recorded in Other Income, Net Gain (Loss) Recorded in Other Comprehensive Income Gain (Loss) Recorded in Revenue Ending Fair Value Derivatives designated as hedging instruments: Net investment hedges $ 209 $ (17 0) $ - $ (41) (*) $ - $ (2 ) Cash flow hedges $ 4 $ ( 2) $ (1 ) $ (4) $ 2 $ (1 ) Derivatives not designated as hedging instruments: Balance sheet hedges $ - $ 3 $ (1 ) $ - $ - $ 2 (*) This amount does not reflect the tax impact of $15 million recorded during the six months ended June 30, 2014. The $26 million after tax impact of the loss recorded within other comprehensive income was included in accumulated other comprehensive income on the Company’s condensed consolidated balance sheets. Foreign currency derivative activity for the six months ended June 30, 2015 was as follows (in millions): Gain (Loss) Gain Gain (Loss) Recorded in (Loss) Settlement Recorded in Other Recorded Beginning Payment Other Income, Comprehensive in Ending Fair Fair Value (Receipt) Net Income Revenue Value Derivatives designated as hedging instruments: Net investment hedges $ 185 $ (38) $ (2 ) 29 (*) $ - $ 174 Cash flow hedges $ 8 $ (1) $ (1 ) $ (3) $ (1) $ 2 Derivatives not designated as hedging instruments: Balance sheet hedges $ 4 $ (22) $ 14 $ - $ - $ (4) (*) This amount does not reflect the tax impact of $11 million recorded during the six months ended June 30, 2015. The $18 million after tax impact of the gain recorded within other comprehensive income 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 Location December 31, 2014 June 30, 2015 Derivatives designated as hedging instruments: Net investment hedges Asset (1) $ 190 $ 176 Liability (2) $ (5 ) $ (2 ) Cash flow hedges Asset (1) $ 8 $ 4 Liability (2) $ - $ (2 ) Derivatives not designated as hedging instruments: Balance sheet hedges Asset (1) $ 5 $ 1 Liability (2) $ (1 ) $ (5 ) (1) Included in prepaid expenses and other current assets or other long-term assets and investments 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	6 Months Ended
	Jun. 30, 2015
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 and October 9, 2014, 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 October 8, 2015, unless extended by the parties. As of June 30, 2015, the Company was in compliance with the financial covenants in the Credit Agreement and no amounts were outstanding. See Note 18 — “Subsequent Events” for additional information.

Convertible Notes

Convertible Notes	6 Months Ended
	Jun. 30, 2015
Convertible Notes	Note 11 Convertible Notes 0.00% Convertible Senior Notes As of June 30, 2015, the Company had $1.4 billion 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 does not accrete. 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 June 30, 2015, none of the conditions allowing holders of the Notes to convert had been met. The Notes consist of the following (in thousands): December 31, 2014 June 30, 2015 Liability component: Principal $ 1,437,500 $ 1,437,500 Less: note discount (267,077) (235,960) Net carrying amount $ 1,170,423 $ 1,201,540 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 Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Accretion of convertible note discount $ 14,860 $ 15,660 $ 29,526 $ 31,117 The estimated 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) was as follows (in thousands): December 31, 2014 June 30, 2015 Fair Value Carrying Value Fair Value Carrying Value Convertible senior notes $ 1,175,240 $ 1,170,423 $ 1,226,670 $ 1,201,540

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Jun. 30, 2015
Commitments And Contingencies	Note 12 Commitments And Contingencies Lease Commitments . Gross Operating Net Operating Lease Sublease Lease Commitments Income Commitments Six months ending December 31, 2015 $ 69 $ (8) $ 61 Years ending December 31, 2016 $ 110 $ (12) $ 98 2017 $ 82 $ (10) $ 72 2018 $ 59 $ (7) $ 52 2019 $ 48 $ (5) $ 43 2020 $ 35 $ (2) $ 33 Due after 5 years $ 109 $ (3) $ 106 Total gross and net lease commitments $ 512 $ (47) $ 465 Capital Lease Commitments Six months ending December 31, 2015 $ 9 Years ending December 31, 2016 15 2017 10 2018 9 2019 5 2020 - Due after 5 years - Gross lease commitments 48 Less: interest 9 Net lease commitments included in other long-term liabilities $ 39 Affiliate Commitments . Non-cancelable Obligations . Intellectual Property Rights . Other Commitments . As of June 30, 2015, 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. Since June 6, 2011, two purported stockholder class actions were filed in the U.S. District Court for the Northern District of California against the Company and certain officers and directors of the Company by plaintiffs Bonato and the Twin Cities Pipe Trades Pension Trust. In October 2011, the District Court consolidated the two actions under the caption In re Yahoo! Inc. Securities Litigation On April 22, 2015, a stockholder action captioned Cathy Buch v. David Filo, 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 plaintiff’s petition was denied. Plaintiffs are seeking to reverse the denial through further review by the Supreme Court of Mexico. The Company believes there is no basis to reverse the denial in the matter; however, we cannot assure the ultimate outcome of the matter. 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. Their operative amended complaint seeks unspecified damages. The Company and Yahoo! Mexico have filed a motion to dismiss the amended complaint. The Company believes the plaintiffs’ claims in this action are without merit. 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 Mexico matters, would not have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows. Amounts accrued as of June 30, 2015 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	6 Months Ended
	Jun. 30, 2015
Stockholders' Equity And Employee Benefits	Note 13 Stockholders’ Equity And Employee Benefits Stock Options . Weighted Average Exercise Price Per Shares Share Outstanding at December 31, 2014 (1) 9,225 $ 18.57 Options granted - $ - Options assumed in acquisitions - $ - Options exercised (2) (1,328) $ 17.19 Options expired (562) $ 19.18 Options cancelled/forfeited (105) $ 15.55 Outstanding at June 30, 2015 (1) 7,230 $ 18.82 (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 June 30, 2015, there was $36 million of unamortized stock-based compensation expense related to unvested stock options, which is expected to be recognized over a weighted average period of 1.6 years. Restricted Stock Units Restricted stock unit (“RSU”) activity under the Plans for the six months ended June 30, 2015 is summarized as follows (in thousands, except per share amounts): Weighted Average Grant Date Fair Value Shares Per Share Awarded and unvested at December 31, 2014 (1) 40,677 $ 32.38 Granted (2) 12,767 $ 43.82 Assumed in acquisitions - $ - Vested (9,100) $ 27.88 Forfeited (7,243) $ 32.67 Awarded and unvested at June 30, 2015 (1) 37,101 $ 37.37 (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 six months ended June 30, 2015 (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 six months ended June 30, 2015. As of June 30, 2015, there was $847 million of unamortized stock-based compensation expense related to unvested restricted stock units and restricted stock, which is expected to be recognized over a weighted average period of 2.5 years. During the six months ended June 30, 2014 and 2015, 11.4 million shares and 9.1 million shares, respectively, that were subject to previously granted restricted stock units, vested. These vested restricted stock units were net share settled. During the six months ended June 30, 2014 and 2015, the Company withheld 4.2 million shares and 3.4 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 $160 million and $150 million, respectively, for the six months ended June 30, 2014 and 2015 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	6 Months Ended
	Jun. 30, 2015
Restructuring Charges, Net	Note 14 Restructuring Charges, Net Restructuring charges, net was comprised of the following (in thousands): Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Employee severance pay and related costs $ 82 $ 7,149 $ 3,673 $ 51,149 Non-cancelable lease, contract termination, and other charges 61,906 13,403 68,438 22,020 Reversals of previous charges (2,336 ) (790 ) (2,972 ) (4,021 ) Non-cash accelerations of stock-based compensation expense - - - 2,705 Other non-cash credits (7,031 ) (74 ) (7,031 ) (933 ) Restructuring charges, net $ 52,621 $ 19,688 $ 62,108 $ 70,920 The Company has implemented various 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 June 30, 2014, the Company recorded expense of $50 million and $3 million related to the Americas and EMEA segments, respectively. For the six months ended June 30, 2014, the Company recorded expense of $55 million and $7 million related to the Americas and EMEA segments, respectively. For the three months ended June 30, 2015, the Company recorded expense of $12 million, $7 million, and $1 million related to the Americas, EMEA, and Asia Pacific segments, respectively. For the six months ended June 30, 2015, the Company recorded expense of $53 million, $14 million, and $4 million related to the Americas, EMEA, and Asia Pacific segments, respectively. The amounts recorded during the six months ended June 30, 2015 were primarily related to severance, facility and other related costs pursuant to restructuring plans initiated by the Company in the fourth quarter of 2014 and the first quarter of 2015. The Company’s restructuring accrual activity for the six months ended June 30, 2015 is summarized as follows (in thousands): Accrual balance as of December 31, 2014 $ 83,608 Restructuring charges 70,920 Cash paid (82,766 ) Non-cash accelerations of stock-based compensation expense (2,705 ) Foreign currency translation and other adjustments 292 Accrual balance as of June 30, 2015 $ 69,349 The $69 million restructuring liability as of June 30, 2015 consisted of $8 million for employee severance pay expenses, which the Company expects to pay out by the end of the second quarter of 2016, and $61 million relating to non-cancelable lease costs, which the Company expects to pay over the terms of the related obligations through the third quarter of 2022, less estimated sublease income. The restructuring accrual by reportable segment consisted of the following (in thousands): December 31, 2014 June 30, 2015 Americas $ 65,949 $ 58,210 EMEA 16,797 11,058 Asia Pacific 862 81 Total restructuring accruals $ 83,608 $ 69,349

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2015
Income Taxes	Note 15 Income Taxes The Company’s effective tax rate is the result of the mix of income earned 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 expense of $8 million and $58 million for the three months ended June 30, 2014 and 2015, respectively. The Company recorded income tax expense of $12 million and $18 million for the six months ended June 30, 2014 and 2015, respectively. Despite the pre-tax loss, the Company recorded income tax expense for the three and six months ended June 30, 2015, based on forecasted tax expense for fiscal year 2015 as a result of tax expense in profitable jurisdictions being higher than tax benefits anticipated in loss jurisdictions. The tax provision increased in the three and six months ended June 30, 2015 compared to the same period last year primarily due to non-deductible acquisition costs plus limited tax benefits in loss jurisdictions combined with tax expense in profitable jurisdictions. As of June 30, 2015, the Company does not anticipate repatriating its undistributed foreign earnings of approximately $3.0 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. The Company’s gross amount of unrecognized tax benefits as of June 30, 2015 was $1,041 million, of which $987 million is recorded on the condensed consolidated balance sheets. The gross unrecognized tax benefits as of June 30, 2015 increased by $17 million from the recorded balance as of December 31, 2014. The Company is in various stages of examination and appeal in connection with its taxes both in the U.S. and in foreign jurisdictions. Those audits generally span tax years 2005 through 2013. As of June 30, 2015, the Company’s 2011 through 2013 U.S. federal income tax returns are currently under examination. The Company has protested 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. As a result, it is reasonably possible that the Company’s unrecognized tax benefits could be reduced by up to approximately $153 million in the next twelve months. The Company believes that it has adequately provided for any reasonably foreseeable adjustment and that any settlement will not have a material adverse effect on its consolidated financial position, results of operations, or cash flows. 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 U.S. 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, translated into U.S. dollars as of June 30, 2015, totals approximately $110 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	6 Months Ended
	Jun. 30, 2015
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 income 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 Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Revenue by segment: Americas $ 805,535 $ 992,210 $ 1,672,463 $ 1,976,931 EMEA 97,847 85,830 189,417 166,916 Asia Pacific 180,809 165,225 355,041 325,388 Total Revenue $ 1,084,191 $ 1,243,265 $ 2,216,921 $ 2,469,235 TAC by segment: Americas $ 30,296 $ 180,822 $ 64,390 $ 347,477 EMEA 10,212 12,950 19,405 24,654 Asia Pacific 3,318 6,458 5,940 11,238 Total TAC $ 43,826 $ 200,230 $ 89,735 $ 383,369 Revenue ex-TAC by segment: Americas $ 775,239 $ 811,388 $ 1,608,073 $ 1,629,454 EMEA 87,635 72,880 170,012 142,262 Asia Pacific 177,491 158,767 349,101 314,150 Total Revenue ex-TAC 1,040,365 1,043,035 2,127,186 2,085,866 Direct costs by segment (1) Americas 60,167 76,148 120,977 134,892 EMEA 21,395 20,551 43,339 40,702 Asia Pacific 48,139 51,818 94,967 102,550 Global operating costs (2) 631,801 649,915 1,282,659 1,334,006 Gain on sale of patents (61,500 ) (9,100 ) (61,500 ) (11,100) Depreciation and amortization 146,860 153,679 304,394 305,218 Stock-based compensation expense 102,445 125,130 211,626 240,826 Restructuring charges, net 52,621 19,688 62,108 70,920 Income from (loss) operations $ 38,437 $ (44,794 ) $ 68,616 $ (132,148) (1) Direct costs for each segment include costs associated with the local sales teams and other cost of revenue. Prior to the fourth quarter of 2014, marketing, media, costs associated with Yahoo Properties and ad operation costs were managed locally and included as direct costs for each segment. Such costs are now included in global operating costs. Prior period amounts have been revised to conform to the current presentation. (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. Beginning in the fourth quarter of 2014, marketing, media, costs associated with Yahoo Properties and other ad operation costs are managed globally and included as global costs. Prior period amounts have been revised to conform to the current presentation. Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Capital expenditures, net: Americas $ 100,340 $ 139,935 $ 164,317 $ 262,188 EMEA 3,274 6,978 19,036 14,648 Asia Pacific 3,744 8,529 8,660 13,527 Total capital expenditures, net $ 107,358 $ 155,442 $ 192,013 $ 290,363 December 31, 2014 June 30, 2015 Property and equipment, net: Americas: U.S. $ 1,382,597 $ 1,416,724 Other 787 590 Total Americas $ 1,383,384 $ 1,417,314 EMEA 34,649 39,841 Asia Pacific 69,651 67,384 Total property and equipment, net $ 1,487,684 $ 1,524,539 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 Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Search $ 428,418 $ 521,126 $ 873,185 $ 1,052,792 Display 436,053 500,376 889,277 964,109 Other 219,720 221,763 454,459 452,334 Total revenue $ 1,084,191 $ 1,243,265 $ 2,216,921 $ 2,469,235 Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Revenue: U.S. $ 771,959 $ 965,228 $ 1,605,616 $ 1,928,739 International 312,232 278,037 611,305 540,496 Total revenue $ 1,084,191 $ 1,243,265 $ 2,216,921 $ 2,469,235 Revenue is attributed to individual countries according to the online property that generated the revenue. No single foreign country was material to revenue for the three or six months ended June 30, 2014 and 2015.

Search Agreement With Microsoft

Search Agreement With Microsoft Corporation	6 Months Ended
	Jun. 30, 2015
Search Agreement With Microsoft Corporation	Note 17 Search Agreement With Microsoft Corporation On December 4, 2009, the Company entered into the Search Agreement with 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 agrees 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 will now have 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 will pay Microsoft serving costs but not a revenue share. In other cases and with respect to the Volume Commitment, the Revenue Share Rate will apply. Previously under the Search Agreement, Yahoo had sales exclusivity for both the Company’s and Microsoft’s premium advertisers. Pursuant to the Eleventh Amendment, this sales exclusivity terminated on July 1, 2015. The Company and Microsoft have commenced transitioning premium advertisers for Microsoft’s paid search services to Microsoft. The Eleventh Amendment requires this transition to be completed by January 31, 2016. The term of the Search Agreement remains 10 years from its commencement date, February 23, 2010, subject to earlier termination as provided in the Search Agreement. Pursuant to the Eleventh Amendment, on or after 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 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. The underlying search advertising services are provided by Microsoft. Approximately 36 percent and 37 percent of the Company’s revenue for the three months ended June 30, 2014 and 2015, respectively, was attributable to the Search Agreement, and approximately 36 percent and 38 percent of the Company’s revenue for the six months ended June 30, 2014 and 2015, respectively, was attributable to the Search Agreement. As of December 31, 2014 and June 30, 2015, the Company had collected total amounts of $52 million and less than $1 million, respectively, on behalf of Microsoft and Microsoft’s affiliates, which was included in cash and cash equivalents with a corresponding liability in accrued expenses and other current liabilities. The Company’s uncollected revenue share in connection with the Search Agreement was $330 million and $328 million, which is included in accounts receivable, net, as of December 31, 2014 and June 30, 2015, 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	6 Months Ended
	Jun. 30, 2015
Subsequent Events	Note 18 Subsequent Events Credit Agreement.

The Company And Summary Of Si26

The Company And Summary Of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2015
Basis of Presentation	Basis of Presentation . 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, 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, 2014. 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, 2014 was derived from the Company’s audited financial statements for the year ended December 31, 2014, 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.
Cost of revenue - TAC	Cost of revenue — TAC
Recent Accounting Pronouncements	Recent Accounting Pronouncements .

Marketable Securities, Invest27

Marketable Securities, Investments And Fair Value Disclosures (Tables)	6 Months Ended
	Jun. 30, 2015
Schedule of Available for Sale Securities	The following tables summarize the available-for-sale securities (in thousands): December 31, 2014 Cost Basis Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Government and agency securities $ 850,712 $ 82 $ (792 ) $ 850,002 Corporate debt securities, commercial paper, time deposits, and bank certificates of deposit 6,711,683 612 (4,653 ) 6,707,642 Alibaba Group equity securities 2,713,484 37,154,305 - 39,867,789 Hortonworks equity securities 26,246 77,783 - 104,029 Other corporate equity securities 230 430 - 660 Total available-for-sale marketable securities $ 10,302,355 $ 37,233,212 $ (5,445 ) $ 47,530,122 June 30, 2015 Cost Basis Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value Government and agency securities $ 804,776 $ 378 $ (41 ) $ 805,113 Corporate debt securities, commercial paper, time deposits, and bank certificates of deposit 5,002,096 721 (2,107 ) 5,000,710 Alibaba Group equity securities 2,713,484 28,842,443 - 31,555,927 Hortonworks equity securities 26,246 71,130 - 97,376 Other corporate equity securities 230 314 - 544 Total available-for-sale marketable securities $ 8,546,832 $ 28,914,986 $ (2,148 ) $ 37,459,670
Schedule of Available for Sale Securities by Balance Sheet Location	December 31, June 30, 2014 2015 Reported as: Short-term marketable securities $ 5,327,412 $ 4,636,152 Long-term marketable securities 2,230,892 1,169,671 Investment in Alibaba Group 39,867,789 31,555,927 Other long-term assets and investments 104,029 97,920 Total $ 47,530,122 $ 37,459,670
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, June 30, 2014 2015 Due within one year $ 5,327,412 $ 4,636,152 Due after one year through five years 2,230,892 1,169,671 Total available-for-sale marketable debt securities $ 7,558,304 $ 5,805,823
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, 2014 Less than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Value Loss Value Loss Value Loss Government and agency securities $ 744,948 $ (792 ) $ - $ - $ 744,948 $ (792 ) Corporate debt securities, commercial paper, and bank certificates of deposit 2,601,288 (4,646 ) 3,234 (7 ) 2,604,522 (4,653 ) Total available-for-sale marketable debt securities $ 3,346,236 $ (5,438 ) $ 3,234 $ (7 ) $ 3,349,470 $ (5,445 ) June 30, 2015 Less than 12 Months 12 Months or Longer Total Fair Unrealized Fair Unrealized Fair Unrealized Value Loss Value Loss Value Loss Government and agency securities $ 133,333 $ (41 ) $ - $ - $ 133,333 $ (41 ) Corporate debt securities, commercial paper, and bank certificates of deposit 2,045,898 (2,107 ) - - 2,045,898 (2,107 ) Total available-for-sale marketable debt securities $ 2,179,231 $ (2,148 ) $ - $ - $ 2,179,231 $ (2,148 )
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, 2014 (in thousands): Fair Value Measurements at Reporting Date Using Assets Level 1 Level 2 Level 3 Total Money market funds (1) $ 373,822 $ - $ - $ 373,822 Available-for-sale marketable debt securities: Government and agency securities (1) - 850,002 - 850,002 Commercial paper and bank certificates of deposit (1) - 3,602,321 - 3,602,321 Corporate debt securities (1) - 3,327,017 - 3,327,017 Time deposits (1) - 1,361,165 - 1,361,165 Available-for-sale equity securities: Other corporate equity securities (2) 660 - - 660 Alibaba Group equity securities 39,867,789 - - 39,867,789 Hortonworks equity securities (2) 104,029 - - 104,029 Hortonworks warrants - - 98,062 98,062 Foreign currency derivative contracts (3) - 202,928 - 202,928 Financial assets at fair value $ 40,346,300 $ 9,343,433 $ 98,062 $ 49,787,795 Liabilities Foreign currency derivative contracts (3) - (6,157 ) - (6,157 ) Total financial assets and liabilities at fair value $ 40,346,300 $ 9,337,276 $ 98,062 $ 49,781,638 The following table sets forth the financial assets and liabilities, measured at fair value, by level within the fair value hierarchy as of June 30, 2015 (in thousands): Fair Value Measurements at Reporting Date Using Assets Level 1 Level 2 Level 3 Total Money market funds (1) $ 403,419 $ - $ - $ 403,419 Available-for-sale marketable debt securities: Government and agency securities (1) - 805,113 - 805,113 Commercial paper and bank certificates of deposit (1) - 1,982,018 - 1,982,018 Corporate debt securities (1) - 3,059,041 - 3,059,041 Time deposits (1) - 73,988 - 73,988 Available-for-sale equity securities: Other corporate equity securities (2) 544 - - 544 Alibaba Group equity securities 31,555,927 - - 31,555,927 Hortonworks equity securities (2) 97,376 - - 97,376 Hortonworks warrants - - 91,601 91,601 Foreign currency derivative contracts (3) - 181,196 - 181,196 Financial assets at fair value $32,057,266 $ 6,101,356 $ 91,601 $38,250,223 Liabilities Foreign currency derivative contracts (3) - (9,278 ) - (9,278 ) Total financial assets and liabilities at fair value $32,057,266 $ 6,092,078 $ 91,601 $38,240,945 (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 other current or noncurrent assets or liabilities on the condensed consolidated balance sheets. The notional amounts of the foreign currency derivative contracts were: $2.1 billion, including contracts designated as net investment hedges of $1.6 billion, as of December 31, 2014; and $2.3 billion, including contracts designated as net investment hedges of $1.8 billion, as of June 30, 2015.

Consolidated Financial Statem28

Consolidated Financial Statement Details (Tables)	6 Months Ended
	Jun. 30, 2015
Accumulated Other Comprehensive Income	The components of accumulated other comprehensive income were as follows (in thousands): December 31, June 30, 2014 2015 Unrealized gains on available-for-sale securities, net of tax $ 22,084,960 $ 17,158,878 Unrealized gains (losses) on cash flow hedges, net of tax 1,856 (1,287 ) Foreign currency translation, net of tax (67,188 ) (282,252 ) Accumulated other comprehensive income $ 22,019,628 $ 16,875,339
Noncontrolling Interests	Noncontrolling interests were as follows (in thousands): December 31, June 30, 2014 2015 Beginning noncontrolling interests $ 55,688 $ 43,755 Distributions to noncontrolling interests (22,344 ) (15,847 ) Net income attributable to noncontrolling interests 10,411 3,340 Ending noncontrolling interests $ 43,755 $ 31,248
Other Expense, Net	Other expense, net was as follows (in thousands): Three Months Ended Six Months Ended June 30, June 30, June 30, June 30, 2014 2015 2014 2015 Interest, dividend and investment income $ 5,596 $ 8,034 $ 11,033 $ 16,879 Interest expense (17,088 ) (17,558 ) (34,169 ) (35,128 ) Gain (loss) on Hortonworks warrants - 5,449 - (6,460 ) Other (2,097 ) (7,666 ) (3,906 ) (18,095 ) Total other expense, net $ (13,589 ) $ (11,741 ) $ (27,042 ) $ (42,804 )
Reclassifications Out of Accumulated Other Comprehensive Income	Reclassifications out of accumulated other comprehensive income for the three months ended June 30, 2014 and 2015 were as follows (in thousands): Three Months Ended June 30, 2014 June 30, 2015 Reclassified from Reclassified from Accumulated Accumulated Other Other Comprehensive Comprehensive Affected Line Item in the Income Income Statement of Income Realized (gains) losses on cash flow hedges, net of tax $ (285 ) $ 478 Revenue Realized (gains) losses on available-for-sale securities, net of tax (109 ) (81 ) Other income, net Total reclassifications for the period $ (394 ) $ 397 Reclassifications out of accumulated other comprehensive income for the six months ended June 30, 2014 and 2015 were as follows (in thousands): Six Months Ended June 30, June 30, 2014 2015 Reclassified from Reclassified from Accumulated Accumulated Other Other Comprehensive Comprehensive Affected Line Item in the Income Income Statement of Income Realized (gains) losses on cash flow hedges, net of tax $ (739 ) $ 2,138 Revenue Realized (gains) losses on available-for-sale securities, net of tax (121 ) 2 Other income, net Total reclassifications for the period $ (860 ) $ 2,140

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Jun. 30, 2015
Schedule Of Goodwill	The changes in the carrying amount of goodwill for the six months ended June 30, 2015 were as follows (in thousands): Americas (1) EMEA (2) Asia Pacific (3) Total Net balance as of January 1, 2015 $ 4,322,219 $ 532,469 $ 297,882 $ 5,152,570 Acquisitions - 20,249 - 20,249 Foreign currency translation adjustments (1,110) (22,169) (2,961) (26,240) Net balance as of June 30, 2015 $ 4,321,109 $ 530,549 $ 294,921 $ 5,146,579 (1) Gross goodwill balance for the Americas segment was $4.3 billion as of June 30, 2015. (2) Gross goodwill balance for the EMEA segment was $1.2 billion as of June 30, 2015. The EMEA segment includes accumulated impairment losses of $630 million as of June 30, 2015. (3) Gross goodwill balance for the Asia Pacific segment was $454 million as of June 30, 2015. The Asia Pacific segment includes accumulated impairment losses of $159 million as of June 30, 2015.

Intangible Assets, Net (Tables)

Intangible Assets, Net (Tables)	6 Months Ended
	Jun. 30, 2015
Intangible Assets, Net	The following table summarizes the Company’s intangible assets, net (in thousands): December 31, 2014 June 30, 2015 Net Gross Carrying Amount Accumulated Amortization (*) Net Customer, affiliate, and advertiser related relationships $ 281,596 $ 363,500 $ (111,038) $ 252,462 Developed technology and patents 122,674 202,354 (103,538) 98,816 Trade names, trademarks, and domain names 66,572 107,939 (46,982) 60,957 Total intangible assets, net $ 470,842 $ 673,793 $ (261,558) $ 412,235 (*) Cumulative foreign currency translation adjustments, reflecting movement in the currencies of the underlying entities, increased total intangible assets by approximately $18 million as of June 30, 2015.

Basic And Diluted Net Income 31

Basic And Diluted Net Income (Loss) Attributable To Yahoo! Inc. Common Stockholders Per Share (Tables)	6 Months Ended
	Jun. 30, 2015
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 Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Basic: Numerator: Net income (loss) attributable to Yahoo! Inc. $ 269,707 $ (21,554) $ 581,285 $ (356) Less: Net income allocated to participating securities (2) - (5) - Net income (loss) attributable to Yahoo! Inc. common stockholders — basic $ 269,705 $ (21,554) $ 581,280 $ (356) Denominator: Weighted average common shares 999,765 937,569 1,004,828 936,159 Net income (loss) attributable to Yahoo! Inc. common stockholders per share — basic $ 0.27 $ (0.02) $ 0.58 $ (0.00) Diluted: Numerator: Net income (loss) attributable to Yahoo! Inc. $ 269,707 $ (21,554) $ 581,285 $ (356) Less: Net income allocated to participating securities (2) - (5) - Less: Effect of dilutive securities issued by equity investees (9,421) (1,125) (21,786) (2,319) Net income (loss) attributable to Yahoo! Inc. common stockholders — diluted $ 260,284 $ (22,679) $ 559,494 $ (2,675) Denominator: Denominator for basic calculation 999,765 937,569 1,004,828 936,159 Weighted average effect of Yahoo! Inc. dilutive securities: Restricted stock units 10,855 - 13,262 - Stock options and employee stock purchase plan 4,072 - 4,966 - Denominator for diluted calculation 1,014,692 937,569 1,023,056 936,159 Net income (loss) attributable to Yahoo! Inc. common stockholders per share — diluted $ 0.26 $ (0.02) $ 0.55 $ (0.00)

Condensed Financial Informati32

Condensed Financial Information (Tables)	6 Months Ended
	Jun. 30, 2015
Investments in Equity Interests 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, 2014 Percent Ownership June 30, 2015 Percent Ownership Yahoo Japan $ 2,482,660 35.5 % $ 2,319,586 35.5 % Other 6,918 20 % 6,850 20 % Total $ 2,489,578 $ 2,326,436

Foreign Currency Derivative F33

Foreign Currency Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Notional Amounts of Company's Outstanding Derivative Contracts	Notional amounts of the Company’s outstanding derivative contracts were as follows (in millions): December 31, 2014 June 30, 2015 Derivatives designated as hedging instruments: Net investment hedge forward and option contracts $ 1,647 $ 1,802 Cash flow hedge forwards $ 222 $ 117 Derivatives not designated as hedging instruments: Balance sheet hedges $ 243 $ 415
Foreign Currency Derivative Activity	Foreign currency derivative activity for the six months ended June 30, 2014 was as follows (in millions): Beginning Fair Value Settlement Payment (Receipt) Gain (Loss) Recorded in Other Income, Net Gain (Loss) Recorded in Other Comprehensive Income Gain (Loss) Recorded in Revenue Ending Fair Value Derivatives designated as hedging instruments: Net investment hedges $ 209 $ (17 0) $ - $ (41) (*) $ - $ (2 ) Cash flow hedges $ 4 $ ( 2) $ (1 ) $ (4) $ 2 $ (1 ) Derivatives not designated as hedging instruments: Balance sheet hedges $ - $ 3 $ (1 ) $ - $ - $ 2 (*) This amount does not reflect the tax impact of $15 million recorded during the six months ended June 30, 2014. The $26 million after tax impact of the loss recorded within other comprehensive income was included in accumulated other comprehensive income on the Company’s condensed consolidated balance sheets. Foreign currency derivative activity for the six months ended June 30, 2015 was as follows (in millions): Gain (Loss) Gain Gain (Loss) Recorded in (Loss) Settlement Recorded in Other Recorded Beginning Payment Other Income, Comprehensive in Ending Fair Fair Value (Receipt) Net Income Revenue Value Derivatives designated as hedging instruments: Net investment hedges $ 185 $ (38) $ (2 ) 29 (*) $ - $ 174 Cash flow hedges $ 8 $ (1) $ (1 ) $ (3) $ (1) $ 2 Derivatives not designated as hedging instruments: Balance sheet hedges $ 4 $ (22) $ 14 $ - $ - $ (4) (*) This amount does not reflect the tax impact of $11 million recorded during the six months ended June 30, 2015. The $18 million after tax impact of the gain recorded within other comprehensive income 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 Location December 31, 2014 June 30, 2015 Derivatives designated as hedging instruments: Net investment hedges Asset (1) $ 190 $ 176 Liability (2) $ (5 ) $ (2 ) Cash flow hedges Asset (1) $ 8 $ 4 Liability (2) $ - $ (2 ) Derivatives not designated as hedging instruments: Balance sheet hedges Asset (1) $ 5 $ 1 Liability (2) $ (1 ) $ (5 ) (1) Included in prepaid expenses and other current assets or other long-term assets and investments 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)	6 Months Ended
	Jun. 30, 2015
Schedule of Notes	The Notes consist of the following (in thousands): December 31, 2014 June 30, 2015 Liability component: Principal $ 1,437,500 $ 1,437,500 Less: note discount (267,077) (235,960) Net carrying amount $ 1,170,423 $ 1,201,540 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 Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Accretion of convertible note discount $ 14,860 $ 15,660 $ 29,526 $ 31,117
Fair Value and Carrying Value of Notes	Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Accretion of convertible note discount $ 14,860 $ 15,660 $ 29,526 $ 31,117 The estimated 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) was as follows (in thousands): December 31, 2014 June 30, 2015 Fair Value Carrying Value Fair Value Carrying Value Convertible senior notes $ 1,175,240 $ 1,170,423 $ 1,226,670 $ 1,201,540

Commitments And Contingencies (

Commitments And Contingencies (Tables)	6 Months Ended
	Jun. 30, 2015
Lease Commitments	A summary of gross and net lease commitments as of June 30, 2015 was as follows (in millions): Gross Operating Net Operating Lease Sublease Lease Commitments Income Commitments Six months ending December 31, 2015 $ 69 $ (8) $ 61 Years ending December 31, 2016 $ 110 $ (12) $ 98 2017 $ 82 $ (10) $ 72 2018 $ 59 $ (7) $ 52 2019 $ 48 $ (5) $ 43 2020 $ 35 $ (2) $ 33 Due after 5 years $ 109 $ (3) $ 106 Total gross and net lease commitments $ 512 $ (47) $ 465
Capital Lease Commitment	Capital Lease Commitments Six months ending December 31, 2015 $ 9 Years ending December 31, 2016 15 2017 10 2018 9 2019 5 2020 - Due after 5 years - Gross lease commitments 48 Less: interest 9 Net lease commitments included in other long-term liabilities $ 39

Stockholders' Equity And Empl36

Stockholders' Equity And Employee Benefits (Tables)	6 Months Ended
	Jun. 30, 2015
Schedule of Stock Based Compensation Activity	Stock Options . Weighted Average Exercise Price Per Shares Share Outstanding at December 31, 2014 (1) 9,225 $ 18.57 Options granted - $ - Options assumed in acquisitions - $ - Options exercised (2) (1,328) $ 17.19 Options expired (562) $ 19.18 Options cancelled/forfeited (105) $ 15.55 Outstanding at June 30, 2015 (1) 7,230 $ 18.82 (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 Units Activity	Restricted stock unit (“RSU”) activity under the Plans for the six months ended June 30, 2015 is summarized as follows (in thousands, except per share amounts): Weighted Average Grant Date Fair Value Shares Per Share Awarded and unvested at December 31, 2014 (1) 40,677 $ 32.38 Granted (2) 12,767 $ 43.82 Assumed in acquisitions - $ - Vested (9,100) $ 27.88 Forfeited (7,243) $ 32.67 Awarded and unvested at June 30, 2015 (1) 37,101 $ 37.37 (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 six months ended June 30, 2015 (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 six months ended June 30, 2015.

Restructuring Charges, Net (Tab

Restructuring Charges, Net (Tables)	6 Months Ended
	Jun. 30, 2015
Restructuring Charges, Net	Restructuring charges, net was comprised of the following (in thousands): Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Employee severance pay and related costs $ 82 $ 7,149 $ 3,673 $ 51,149 Non-cancelable lease, contract termination, and other charges 61,906 13,403 68,438 22,020 Reversals of previous charges (2,336 ) (790 ) (2,972 ) (4,021 ) Non-cash accelerations of stock-based compensation expense - - - 2,705 Other non-cash credits (7,031 ) (74 ) (7,031 ) (933 ) Restructuring charges, net $ 52,621 $ 19,688 $ 62,108 $ 70,920
Restructuring Accrual Activity	The Company’s restructuring accrual activity for the six months ended June 30, 2015 is summarized as follows (in thousands): Accrual balance as of December 31, 2014 $ 83,608 Restructuring charges 70,920 Cash paid (82,766 ) Non-cash accelerations of stock-based compensation expense (2,705 ) Foreign currency translation and other adjustments 292 Accrual balance as of June 30, 2015 $ 69,349
Restructuring Accrual by Reportable Segment	The restructuring accrual by reportable segment consisted of the following (in thousands): December 31, 2014 June 30, 2015 Americas $ 65,949 $ 58,210 EMEA 16,797 11,058 Asia Pacific 862 81 Total restructuring accruals $ 83,608 $ 69,349

Segments (Tables)

Segments (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Information	The following tables present summarized information by segment (in thousands): Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Revenue by segment: Americas $ 805,535 $ 992,210 $ 1,672,463 $ 1,976,931 EMEA 97,847 85,830 189,417 166,916 Asia Pacific 180,809 165,225 355,041 325,388 Total Revenue $ 1,084,191 $ 1,243,265 $ 2,216,921 $ 2,469,235 TAC by segment: Americas $ 30,296 $ 180,822 $ 64,390 $ 347,477 EMEA 10,212 12,950 19,405 24,654 Asia Pacific 3,318 6,458 5,940 11,238 Total TAC $ 43,826 $ 200,230 $ 89,735 $ 383,369 Revenue ex-TAC by segment: Americas $ 775,239 $ 811,388 $ 1,608,073 $ 1,629,454 EMEA 87,635 72,880 170,012 142,262 Asia Pacific 177,491 158,767 349,101 314,150 Total Revenue ex-TAC 1,040,365 1,043,035 2,127,186 2,085,866 Direct costs by segment (1) Americas 60,167 76,148 120,977 134,892 EMEA 21,395 20,551 43,339 40,702 Asia Pacific 48,139 51,818 94,967 102,550 Global operating costs (2) 631,801 649,915 1,282,659 1,334,006 Gain on sale of patents (61,500 ) (9,100 ) (61,500 ) (11,100) Depreciation and amortization 146,860 153,679 304,394 305,218 Stock-based compensation expense 102,445 125,130 211,626 240,826 Restructuring charges, net 52,621 19,688 62,108 70,920 Income from (loss) operations $ 38,437 $ (44,794 ) $ 68,616 $ (132,148) (1) Direct costs for each segment include costs associated with the local sales teams and other cost of revenue. Prior to the fourth quarter of 2014, marketing, media, costs associated with Yahoo Properties and ad operation costs were managed locally and included as direct costs for each segment. Such costs are now included in global operating costs. Prior period amounts have been revised to conform to the current presentation. (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. Beginning in the fourth quarter of 2014, marketing, media, costs associated with Yahoo Properties and other ad operation costs are managed globally and included as global costs. Prior period amounts have been revised to conform to the current presentation.
Capital Expenditures by Segment	Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Capital expenditures, net: Americas $ 100,340 $ 139,935 $ 164,317 $ 262,188 EMEA 3,274 6,978 19,036 14,648 Asia Pacific 3,744 8,529 8,660 13,527 Total capital expenditures, net $ 107,358 $ 155,442 $ 192,013 $ 290,363
Property and Equipment Net	December 31, 2014 June 30, 2015 Property and equipment, net: Americas: U.S. $ 1,382,597 $ 1,416,724 Other 787 590 Total Americas $ 1,383,384 $ 1,417,314 EMEA 34,649 39,841 Asia Pacific 69,651 67,384 Total property and equipment, net $ 1,487,684 $ 1,524,539
Enterprise Wide Disclosures Revenues for Groups of Similar Services	The following table presents revenue for groups of similar services (in thousands): Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Search $ 428,418 $ 521,126 $ 873,185 $ 1,052,792 Display 436,053 500,376 889,277 964,109 Other 219,720 221,763 454,459 452,334 Total revenue $ 1,084,191 $ 1,243,265 $ 2,216,921 $ 2,469,235 Three Months Ended Six Months Ended June 30, 2014 June 30, 2015 June 30, 2014 June 30, 2015 Revenue: U.S. $ 771,959 $ 965,228 $ 1,605,616 $ 1,928,739 International 312,232 278,037 611,305 540,496 Total revenue $ 1,084,191 $ 1,243,265 $ 2,216,921 $ 2,469,235

Company and Summary of Signific

Company and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Organization and Summary of Significant Accounting Policies [Line Items]
Cost of revenue - other	$ 295,932	$ 295,786	$ 581,195	$ 589,389
Sales and marketing	274,304	253,198	549,661	555,523
General and administrative	180,595	154,881	354,108	319,504
Product development	$ 306,428	291,778	633,175	560,042
Adjustments to previous purchase accounting estimates for acquisitions, tax and other adjustments			$ 11,000
Scenario, Adjustment | Editorial Costs
Organization and Summary of Significant Accounting Policies [Line Items]
Cost of revenue - other		25,000		37,000
Scenario, Adjustment | Previously included in product development | Facilities Related Costs
Organization and Summary of Significant Accounting Policies [Line Items]
General and administrative		12,000		25,000
Scenario, Adjustment | Previously included in sales and marketing | Facilities Related Costs
Organization and Summary of Significant Accounting Policies [Line Items]
General and administrative		15,000		30,000
Scenario, Previously Reported | Editorial Costs
Organization and Summary of Significant Accounting Policies [Line Items]
Sales and marketing		(25,000)		(37,000)
Scenario, Previously Reported | Facilities Related Costs
Organization and Summary of Significant Accounting Policies [Line Items]
Sales and marketing		(15,000)		(30,000)
Product development		$ (12,000)		$ (25,000)

Available for Sale Marketable S

Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	$ 8,546,832	$ 10,302,355
Gross Unrealized Gains	28,914,986	37,233,212
Gross Unrealized Losses	(2,148)	(5,445)
Estimated Fair Value, Total available-for-sale marketable securities	37,459,670	47,530,122
Government and agency securities
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	804,776	850,712
Gross Unrealized Gains	378	82
Gross Unrealized Losses	(41)	(792)
Estimated Fair Value, Total available-for-sale marketable securities	805,113	850,002
Corporate Debt Securities, Commercial Paper, Time Deposits, And Bank Certificates Of Deposit
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	5,002,096	6,711,683
Gross Unrealized Gains	721	612
Gross Unrealized Losses	(2,107)	(4,653)
Estimated Fair Value, Total available-for-sale marketable securities	5,000,710	6,707,642
Corporate Equity Securities | Alibaba Group
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	2,713,484	2,713,484
Gross Unrealized Gains	28,842,443	37,154,305
Estimated Fair Value, Total available-for-sale marketable securities	31,555,927	39,867,789
Corporate Equity Securities | Hortonworks, Inc
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	26,246	26,246
Gross Unrealized Gains	71,130	77,783
Estimated Fair Value, Total available-for-sale marketable securities	97,376	104,029
Corporate Equity Securities | Other corporate equity securities
Schedule of Available-for-sale Securities [Line Items]
Cost Basis	230	230
Gross Unrealized Gains	314	430
Estimated Fair Value, Total available-for-sale marketable securities	$ 544	$ 660

Available for Sale Securities b

Available for Sale Securities by Balance Sheet Location (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Short-term marketable securities	$ 4,636,152	$ 5,327,412
Long-term marketable securities	1,169,671	2,230,892
Investment in Alibaba Group	31,555,927	39,867,789
Other long-term assets and investments	97,920	104,029
Total	$ 37,459,670	$ 47,530,122

Marketable Securities Investmen

Marketable Securities Investments and Fair Value Disclosures - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2013	Dec. 31, 2014
Investments [Line Items]
Cash deposited with commercial banks	$ 670,000	$ 670,000		$ 702,000
Gain (loss) on Hortonworks warrants	5,449	(6,460)
Cash and Cash Equivalents
Investments [Line Items]
Short-term investments	518,000	518,000		2,000,000
Other long-term assets
Investments [Line Items]
Other investments held at cost	$ 83,000	$ 83,000		82,000
Convertible Senior Notes
Investments [Line Items]
Principal amount			$ 1,437,500
Convertible senior notes percent	0.00%	0.00%	0.00%
Maturity date, convertible senior note		Dec. 1, 2018	Dec. 1, 2018
Fair Value Measurements At Reporting Date Using Total | Hortonworks, Inc
Investments [Line Items]
Warrants	$ 91,601	$ 91,601		98,062
Fair Value Measurements At Reporting Date Using Level 2 | Convertible Senior Notes
Investments [Line Items]
Fair value of the convertible senior notes	$ 1,226,670	$ 1,226,670		$ 1,175,240

Available for Sale Securities43

Available for Sale Securities by Contractual Maturities (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Due within one year	$ 4,636,152	$ 5,327,412
Due after one year through five years	1,169,671	2,230,892
Total available-for-sale marketable debt securities	$ 5,805,823	$ 7,558,304

Available for Sale Marketable D

Available for Sale Marketable Debt Securities in Unrealized Loss Position (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 2,179,231	$ 3,346,236
Less than 12 Months, Unrealized Loss	(2,148)	(5,438)
12 Months or Longer, Fair Value		3,234
12 Months or Longer, Unrealized Loss		(7)
Total, Fair Value	2,179,231	3,349,470
Total, Unrealized Loss	(2,148)	(5,445)
Government and agency securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	133,333	744,948
Less than 12 Months, Unrealized Loss	(41)	(792)
Total, Fair Value	133,333	744,948
Total, Unrealized Loss	(41)	(792)
Corporate Debt Securities, Commercial Paper, and Bank Certificates of Deposit
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	2,045,898	2,601,288
Less than 12 Months, Unrealized Loss	(2,107)	(4,646)
12 Months or Longer, Fair Value		3,234
12 Months or Longer, Unrealized Loss		(7)
Total, Fair Value	2,045,898	2,604,522
Total, Unrealized Loss	$ (2,107)	$ (4,653)

Fair Value of Financial Assets

Fair Value of Financial Assets and Liabilities (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
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		$ 32,057,266	$ 40,346,300
Total financial assets and liabilities at fair value		32,057,266	40,346,300
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]	403,419	373,822
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]	544	660
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		31,555,927	39,867,789
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]	97,376	104,029
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		6,101,356	9,343,433
Total financial assets and liabilities at fair value		6,092,078	9,337,276
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]	805,113	850,002
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]	1,982,018	3,602,321
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]	3,059,041	3,327,017
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]	73,988	1,361,165
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]	181,196	202,928
Foreign currency derivative contracts, liabilities	[3]	(9,278)	(6,157)
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		91,601	98,062
Total financial assets and liabilities at fair value		91,601	98,062
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		91,601	98,062
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		38,250,223	49,787,795
Total financial assets and liabilities at fair value		38,240,945	49,781,638
Fair Value Measurements At Reporting Date Using Total | Hortonworks, Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Warrants		91,601	98,062
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]	403,419	373,822
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]	805,113	850,002
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]	1,982,018	3,602,321
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]	3,059,041	3,327,017
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]	73,988	1,361,165
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]	544	660
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		31,555,927	39,867,789
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]	97,376	104,029
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]	181,196	202,928
Foreign currency derivative contracts, liabilities	[3]	$ (9,278)	$ (6,157)
[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 other current or noncurrent assets or liabilities on the condensed consolidated balance sheets. The notional amounts of the foreign currency derivative contracts were: $2.1 billion, including contracts designated as net investment hedges of $1.6 billion, as of December 31, 2014; and $2.3 billion, including contracts designated as net investment hedges of $1.8 billion, as of June 30, 2015.

Fair Value of Financial Asset46

Fair Value of Financial Assets and Liabilities (Parenthetical) (Detail) - Foreign Currency Derivative Contracts - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative contract, notional amount	$ 2,300	$ 2,100
Designated as Hedging Instrument | Net Investment Hedging
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative contract, notional amount	$ 1,802	$ 1,647

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized gains on available-for-sale securities, net of tax	$ 17,158,878	$ 22,084,960
Unrealized gains (losses) on cash flow hedges, net of tax	(1,287)	1,856
Foreign currency translation, net of tax	(282,252)	(67,188)
Accumulated other comprehensive income	$ 16,875,339	$ 22,019,628

Noncontrolling Interests (Detai

Noncontrolling Interests (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Noncontrolling Interest [Line Items]
Beginning noncontrolling interests			$ 43,755	$ 55,688	$ 55,688
Distributions to noncontrolling interests			(15,847)		(22,344)
Net income attributable to noncontrolling interests	$ 2,365	$ 2,850	3,340	$ 5,183	10,411
Ending noncontrolling interests	$ 31,248		$ 31,248		$ 43,755

Other Expense, Net (Detail)

Other Expense, Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Components of Other Income (Expense) [Line Items]
Interest, dividend and investment income	$ 8,034	$ 5,596	$ 16,879	$ 11,033
Interest expense	(17,558)	(17,088)	(35,128)	(34,169)
Gain (loss) on Hortonworks warrants	5,449		(6,460)
Other	(7,666)	(2,097)	(18,095)	(3,906)
Total other expense, net	$ (11,741)	$ (13,589)	$ (42,804)	$ (27,042)

Consolidated Financial Statem50

Consolidated Financial Statement Details - Additional Information (Detail) - Jun. 30, 2015 - USD ($) $ in Thousands	Total	Total
Financial Statement Details [Line Items]
Gain (loss) on Hortonworks warrants	$ 5,449	$ (6,460)
Increase in other	6,000	14,000
Unrealized foreign exchange currency transaction gains (losses)	8,000	(25,000)
Foreign exchange gains (losses) from hedging activities	$ (11,000)	$ 12,000

Reclassifications Out of Accumu

Reclassifications Out of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue	$ 1,243,265	$ 1,084,191	$ 2,469,235	$ 2,216,921
Other income, net	(11,741)	(13,589)	(42,804)	(27,042)
Net income (loss) attributable to Yahoo! Inc.	(21,554)	269,707	(356)	581,285
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income (loss) attributable to Yahoo! Inc.	397	(394)	2,140	(860)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue	478	(285)	2,138	(739)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Realized Investment Gains (Losses)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other income, net	$ (81)	$ (109)	$ 2	$ (121)

Acquisitions and Dispositions -

Acquisitions and Dispositions - Additional Information (Detail) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)Entity	Jun. 30, 2014USD ($)Entity	Dec. 31, 2014USD ($)
Business Acquisition [Line Items]
Business combination, cash consideration paid net of cash acquired				$ 21,291	$ 21,661
Goodwill	$ 5,146,579			5,146,579		$ 5,152,570
Total cash consideration					460,000
Gain on sale of patents	9,100		$ 61,500	11,100	61,500
Sold Patents
Business Acquisition [Line Items]
Total cash consideration					61,000
Gain on sale of patents		$ 1,000	60,000
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			43,000
Sold Patents
Business Acquisition [Line Items]
Gain on sale of patents	9,000		62,000	$ 11,000	$ 62,000
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Business combination, number of entities acquired | Entity				1	5
Business combination, total purchase price	23,000		23,000	$ 23,000	$ 23,000
Business combination, cash acquired					1,000
Business combination, cash consideration paid net of cash acquired					22,000
Business combination, amortizable intangible assets	5,000		9,000	5,000	9,000
Business combination, net assumed assets			1,000		1,000
Goodwill	20,000		$ 13,000	20,000	$ 13,000
Business combination, net assumed liabilities	$ 2,000			$ 2,000

Goodwill (Detail)

Goodwill (Detail) $ in Thousands		6 Months Ended
		Jun. 30, 2015USD ($)
Goodwill [Line Items]
Beginning balance		$ 5,152,570
Acquisitions		20,249
Foreign currency translation adjustments		(26,240)
Ending balance		5,146,579
Americas Segment
Goodwill [Line Items]
Beginning balance	[1]	4,322,219
Foreign currency translation adjustments	[1]	(1,110)
Ending balance	[1]	4,321,109
Europe Middle East Africa Segment
Goodwill [Line Items]
Beginning balance	[2]	532,469
Acquisitions	[2]	20,249
Foreign currency translation adjustments	[2]	(22,169)
Ending balance	[2]	530,549
Asia Pacific Segment
Goodwill [Line Items]
Beginning balance	[3]	297,882
Foreign currency translation adjustments	[3]	(2,961)
Ending balance	[3]	$ 294,921
[1]	Gross goodwill balance for the Americas segment was $4.3 billion as of June 30, 2015.
[2]	Gross goodwill balance for the EMEA segment was $1.2 billion as of June 30, 2015. The EMEA segment includes accumulated impairment losses of $630 million as of June 30, 2015.
[3]	Gross goodwill balance for the Asia Pacific segment was $454 million as of June 30, 2015. The Asia Pacific segment includes accumulated impairment losses of $159 million as of June 30, 2015.

Goodwill (Parenthetical) (Detai

Goodwill (Parenthetical) (Detail) $ in Millions	Jun. 30, 2015USD ($)
Americas Segment
Goodwill [Line Items]
Gross Goodwill Balance	$ 4,300
Europe Middle East Africa Segment
Goodwill [Line Items]
Gross Goodwill Balance	1,200
Accumulated goodwill impairment	630
Asia Pacific Segment
Goodwill [Line Items]
Gross Goodwill Balance	454
Accumulated goodwill impairment	$ 159

Intangible Assets Net (Detail)

Intangible Assets Net (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 673,793
Accumulated Amortization	[1]	(261,558)
Net		412,235	$ 470,842
Customer, Affiliate And Advertiser Related Relationships
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		363,500
Accumulated Amortization	[1]	(111,038)
Net		252,462	281,596
Developed Technology And Patents
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		202,354
Accumulated Amortization	[1]	(103,538)
Net		98,816	122,674
Trade Names, Trademarks, And Domain Names
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		107,939
Accumulated Amortization	[1]	(46,982)
Net		$ 60,957	$ 66,572
[1]	Cumulative foreign currency translation adjustments, reflecting movement in the currencies of the underlying entities, increased total intangible assets by approximately $18 million as of June 30, 2015.

Intangible Assets Net (Parenthe

Intangible Assets Net (Parenthetical) (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2015USD ($)
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Cumulative foreign currency translation adjustments	$ 18

Intangible Assets Net - Additio

Intangible Assets Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Amortization expense for intangible assets	$ 34,000	$ 30,000	$ 68,524	$ 64,763
Amortization expense in cost of revenue - other	14,000	$ 15,000	28,000	$ 31,000
Estimated amortization expense for the remainder of 2015	65,000		65,000
Estimated amortization expense 2016	108,000		108,000
Estimated amortization expense 2017	99,000		99,000
Estimated amortization expense 2018	80,000		80,000
Estimated amortization expense 2019	43,000		43,000
Estimated amortization expense cumulatively thereafter	$ 1,000		$ 1,000

Basic and Diluted Net Income 58

Basic and Diluted Net Income (Loss) Attributable to Yahoo Inc. Common Stockholders Per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Anti-dilutive securities excluded from computation of earnings per share	1	7	1	4

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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Net income (loss) attributable to Yahoo! Inc.	$ (21,554)	$ 269,707	$ (356)	$ 581,285
Less: Net income allocated to participating securities		(2)		(5)
Net income (loss) attributable to Yahoo! Inc. common stockholders - basic	$ (21,554)	$ 269,705	$ (356)	$ 581,280
Weighted average common shares	937,569	999,765	936,159	1,004,828
Net income (loss) attributable to Yahoo! Inc. common stockholders per share - basic	$ (0.02)	$ 0.27	$ 0	$ 0.58
Net income (loss) attributable to Yahoo! Inc.	$ (21,554)	$ 269,707	$ (356)	$ 581,285
Less: Net income allocated to participating securities		(2)		(5)
Less: Effect of dilutive securities issued by equity investees	(1,125)	(9,421)	(2,319)	(21,786)
Net income (loss) attributable to Yahoo! Inc. common stockholders - diluted	$ (22,679)	$ 260,284	$ (2,675)	$ 559,494
Denominator for basic calculation	937,569	999,765	936,159	1,004,828
Denominator for diluted calculation	937,569	1,014,692	936,159	1,023,056
Net income (loss) attributable to Yahoo! Inc. common stockholders per share - diluted	$ (0.02)	$ 0.26	$ 0	$ 0.55
Restricted Stock Units (RSUs)
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Incremental common shares		10,855		13,262
Stock Options and Employee Stock Purchase Plan
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Incremental common shares		4,072		4,966

Investments in Equity Interests

Investments in Equity Interests (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Investment in equity interests	$ 2,326,436	$ 2,489,578
Yahoo Japan
Schedule of Equity Method Investments [Line Items]
Investment in equity interests	$ 2,319,586	$ 2,482,660
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	$ 6,850	$ 6,918
Percent ownership of common stock as of balance sheet date	20.00%	20.00%

Investments in Equity Interes61

Investments in Equity Interests Using the Equity Method of Accounting - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions	Jul. 17, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Dividends received from equity investee			$ 83,685	$ 141,670	$ 83,685
Deferred revenue		$ 202,246		202,246		$ 336,963
Alibaba Group
Schedule of Equity Method Investments [Line Items]
Deferred revenue		60,000		60,000
Royalty received		69,000	62,000	139,000	132,000
Alibaba Group | Scenario, Forecast | SpinCo
Schedule of Equity Method Investments [Line Items]
Alibaba Group shares to be held by SpinCo upon completion of Spin-off	384
Ownership interest percentage	100.00%
Yahoo Japan
Schedule of Equity Method Investments [Line Items]
Fair value of the company's ownership interest in the common stock of Yahoo Japan		8,000,000		8,000,000
Cash proceeds from sale of data center assets					11,000
Net gain on sale of data center assets					5,000
Revenue received through commercial arrangements with Yahoo Japan		55,000	$ 64,000	115,000	$ 132,000
Net receivables balance from Yahoo Japan		$ 35,000		$ 35,000		$ 47,000

Yahoo Japan Condensed Financial

Yahoo Japan Condensed Financial Information Operating Data (Detail) - Yahoo Japan - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Schedule of Equity Method Investments [Line Items]
Revenue	$ 987,417	$ 1,055,064	$ 1,928,658	$ 2,086,720
Gross profit	790,966	861,258	1,541,950	1,705,184
Income from operations	438,166	477,945	863,219	967,387
Net income	274,721	314,029	561,514	621,141
Net income attributable to Yahoo Japan	$ 274,129	$ 311,182	$ 558,975	$ 615,527

Yahoo Japan Condensed Financi63

Yahoo Japan Condensed Financial Information Balance Sheet Data (Detail) - Yahoo Japan - USD ($) $ in Thousands	Mar. 31, 2015	Sep. 30, 2014
Schedule of Equity Method Investments [Line Items]
Current assets	$ 6,303,704	$ 6,161,126
Long-term assets	2,203,642	1,908,379
Current liabilities	2,014,409	1,948,540
Long-term liabilities	228,902	35,418
Noncontrolling interests	$ 171,849	$ 66,998

Notional Amounts of Outstanding

Notional Amounts of Outstanding Forward Contracts (Detail) - Foreign Currency Derivative Contracts - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Derivative [Line Items]
Derivative notional amount	$ 2,300	$ 2,100
Designated as Hedging Instrument | Net Investment Hedging
Derivative [Line Items]
Derivative notional amount	1,802	1,647
Designated as Hedging Instrument | Cash Flow Hedges
Derivative [Line Items]
Derivative notional amount	117	222
Not Designated as Hedging Instrument | Balance Sheet Hedges
Derivative [Line Items]
Derivative notional amount	$ 415	$ 243

Foreign Currency Forward Contra

Foreign Currency Forward Contracts Activity (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015		Jun. 30, 2014
Net Investment Hedging | Designated as Hedging Instrument
Derivative [Line Items]
Beginning Fair Value	$ 185		$ 209
Settlement Payment (Receipt)	(38)		(170)
Gain (Loss) Recorded in Other Income, Net	(2)
Gain (Loss) Recorded in Other Comprehensive Income	29	[1]	(41)	[2]
Ending Fair Value	174		(2)
Balance Sheet Hedges | Not Designated as Hedging Instrument
Derivative [Line Items]
Beginning Fair Value	4
Settlement Payment (Receipt)	(22)		3
Gain (Loss) Recorded in Other Income, Net	14		(1)
Ending Fair Value	(4)		2
Gain (Loss) Recorded in Other Comprehensive Income	0		0
Cash Flow Hedges | Designated as Hedging Instrument
Derivative [Line Items]
Beginning Fair Value	8		4
Settlement Payment (Receipt)	(1)		(2)
Gain (Loss) Recorded in Other Income, Net	(1)		(1)
Gain (Loss) Recorded in Revenue	(1)		2
Ending Fair Value	2		(1)
Gain (Loss) Recorded in Other Comprehensive Income	$ (3)		$ (4)
[1]	This amount does not reflect the tax impact of $11 million recorded during the six months ended June 30, 2015. The $18 million after tax impact of the gain recorded within other comprehensive income 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 $15 million recorded during the six months ended June 30, 2014. The $26 million after tax impact of the loss recorded within other comprehensive income 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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative [Line Items]
Net investment hedge CTA, tax	$ (9,153)	$ 7,130	$ (10,744)	$ 15,562
Net investment hedge CTA, net of tax	$ 15,404	$ (11,862)	18,038	(25,911)
Designated as Hedging Instrument | Net Investment Hedging
Derivative [Line Items]
Net investment hedge CTA, tax			11,000	15,000
Net investment hedge CTA, net of tax			$ 18,000	$ 26,000

Foreign Currency Forward Cont67

Foreign Currency Forward Contracts Balance Sheet Location and Ending Fair Value (Detail) - Foreign Currency Derivative Contracts - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Designated as Hedging Instrument | Net Investment Hedging | Assets
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value asset	[1]	$ 176	$ 190
Designated as Hedging Instrument | Net Investment Hedging | Liabilities
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value liability	[2]	(2)	(5)
Designated as Hedging Instrument | Cash Flow Hedges | Assets
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value asset	[1]	4	8
Designated as Hedging Instrument | Cash Flow Hedges | Liabilities
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value liability	[2]	(2)
Not Designated as Hedging Instrument | Balance Sheet Hedges | Assets
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value asset	[1]	1	5
Not Designated as Hedging Instrument | Balance Sheet Hedges | Liabilities
Derivatives, Fair Value [Line Items]
Foreign currency forward contract, fair value liability	[2]	$ (5)	$ (1)
[1]	Included in prepaid expenses and other current assets or other long-term assets and investments 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) - Jun. 30, 2015 - USD ($)	Total
Line of Credit Facility [Line Items]
Unsecured revolving credit facility	$ 750,000,000
Unsecured revolving credit facility, additional commitment	250,000,000
Unsecured revolving credit facility, outstanding	$ 0
After Amendment 2
Line of Credit Facility [Line Items]
Unsecured revolving credit facility expiration date	Oct. 8, 2015

Convertible Notes - Additional

Convertible Notes - Additional Information (Detail) - Convertible Senior Notes - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2013	Dec. 31, 2014
Debt Instrument [Line Items]
Convertible senior notes percent	0.00%	0.00%
Principal amount	$ 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	Dec. 1, 2018

Schedule of Notes (Detail)

Schedule of Notes (Detail) - Convertible Senior Notes - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Principal		$ 1,437,500	$ 1,437,500
Less: note discount		(235,960)	(267,077)
Net carrying amount		1,201,540	1,170,423
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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Schedule Of Interest Expenses [Line Items]
Accretion of convertible note discount			$ 31,117	$ 29,526
Convertible Senior Notes
Schedule Of Interest Expenses [Line Items]
Accretion of convertible note discount	$ 15,660	$ 14,860	$ 31,117	$ 29,526

Fair Value and Carrying Value o

Fair Value and Carrying Value of Notes (Detail) - Convertible Senior Notes - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Carrying Value	$ 1,201,540	$ 1,170,423
Fair Value Measurements At Reporting Date Using Level 2
Debt Instrument [Line Items]
Fair Value	$ 1,226,670	$ 1,175,240

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail)	May. 15, 2013USD ($)	Nov. 28, 2012USD ($)	Nov. 16, 2011USD ($)	Jun. 30, 2015USD ($)LegalMatter	Dec. 07, 2011USD ($)
Commitments and Contingencies Disclosure [Line Items]
Affiliate commitments				$ 1,800,000,000
Non-cancelable commitments				502,000,000
Payable in remainder of 2015				115,000,000
Payable in 2016				183,000,000
Payable in 2017				125,000,000
Payable in 2018				77,000,000
Payable in 2019				2,000,000
Intellectual property arrangements through 2023				$ 19,000,000
Intellectual property arrangements, expiration year				2,023
Number of purported stockholder class action suits filed | LegalMatter				2
Alleged total damages			$ 2,750,000,000
Counterclaim filed for payments of services rendered	$ 2,600,000				$ 2,600,000
Loss Contingency	$ 172,500
Maximum
Commitments and Contingencies Disclosure [Line Items]
Operating and capital lease agreements, original lease period				12 years
Operating and capital lease agreements, expiry year				2,025
Minimum
Commitments and Contingencies Disclosure [Line Items]
Operating and capital lease agreements, expiry year				2,015
Payable In 2015
Commitments and Contingencies Disclosure [Line Items]
Affiliate commitments				$ 218,000,000
Payable In 2016
Commitments and Contingencies Disclosure [Line Items]
Affiliate commitments				401,000,000
Payable In 2017
Commitments and Contingencies Disclosure [Line Items]
Affiliate commitments				400,000,000
Payable In 2018
Commitments and Contingencies Disclosure [Line Items]
Affiliate commitments				375,000,000
Payable In 2019
Commitments and Contingencies Disclosure [Line Items]
Affiliate commitments				375,000,000
Due Thereafter
Commitments and Contingencies Disclosure [Line Items]
Affiliate commitments				$ 31,000,000
Non-Final Judgment
Commitments and Contingencies Disclosure [Line Items]
Alleged total damages		$ 2,750,000,000
Counterclaim filed for payments of services rendered		$ 2,600,000

Lease Commitments (Detail)

Lease Commitments (Detail) $ in Millions	Jun. 30, 2015USD ($)
Commitments and Contingencies Disclosure [Line Items]
Gross operating lease commitments, Six months ending December 31, 2015	$ 69
Gross operating lease commitments, years ending December 31, 2016	110
Gross operating lease commitments, 2017	82
Gross operating lease commitments, 2018	59
Gross operating lease commitments, 2019	48
Gross operating lease commitments, 2020	35
Gross operating lease commitments, due after 5 years	109
Total gross operating lease commitments	512
Sublease income, Six months ending December 31, 2015	(8)
Sublease income, years ending December 31, 2016	(12)
Sublease income, 2017	(10)
Sublease income, 2018	(7)
Sublease income, 2019	(5)
Sublease income, 2020	(2)
Sublease income, due after 5 years	(3)
Total sublease income	(47)
Net operating lease commitments, Six months ending December 31, 2015	61
Net operating lease commitments, years ending December 31, 2016	98
Net operating lease commitments, 2017	72
Net operating lease commitments, 2018	52
Net operating lease commitments, 2019	43
Net operating lease commitments, 2020	33
Net operating lease commitments, due after 5 years	106
Total net operating lease commitments	$ 465

Capital Lease Commitment (Detai

Capital Lease Commitment (Detail) $ in Millions	Jun. 30, 2015USD ($)
Schedule of Capital Lease Obligations [Line Items]
Six months ending December 31, 2015	$ 9
Years ending December 31, 2016	15
2,017	10
2,018	9
2,019	5
2,020	0
Due after 5 years	0
Gross lease commitments	48
Less: interest	9
Net lease commitments included in other long-term liabilities	$ 39

Stock Option Activity (Detail)

Stock Option Activity (Detail) - 6 months ended Jun. 30, 2015 - $ / shares shares in Thousands		Total
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding stock options, Beginning balance	[1]	9,225
Stock options granted during the period		0
Stock options assumed in acquisitions during the period		0
Stock options exercised during the period	[2]	(1,328)
Stock options expired during the period		(562)
Stock options cancelled/forfeited during the period		(105)
Outstanding stock options, Ending balance	[1]	7,230
Weighted average exercise price of options outstanding, Beginning balance	[1]	$ 18.57
Weighted-average exercise price of shares granted during period		0
Weighted-average exercise price of shares assumed in acquisitions during period		0
Weighted-average exercise price of shares exercised during period	[2]	17.19
Weighted-average exercise price of shares expired during period		19.18
Weighted-average exercise price of shares cancelled/forfeited during period		15.55
Weighted average exercise price of options outstanding, Ending balance	[1]	$ 18.82
[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 ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	6 Months Ended
	Mar. 31, 2015	Jun. 30, 2015	Jun. 30, 2014	Nov. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payments made to taxing authorities for employees' tax obligations		$ 149,960	$ 159,581
November 2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock acquired repurchase authorization value				$ 5,000,000
Stock repurchase program expiration date		2016-12
Remaining authorized purchase capacity		$ 726,000
Repurchases of common stock, shares		4,000
Average purchase price per share of common stock repurchased during the period		$ 47.65
Repurchases of common stock, value		$ 204,000
March 2015 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock acquired repurchase authorization value	$ 2,000,000
Stock repurchase program expiration date	2018-03
Remaining authorized purchase capacity		$ 2,000,000
GAAP Revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
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 restricted stock units awards		33.3333%
Adjusted EBITDA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
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		$ 36,000
Stock-based compensation, recognition period		1 year 7 months 6 days
Restricted Stock Awards And Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized stock-based compensation expense		$ 847,000
Stock-based compensation, recognition period		2 years 6 months
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested		9,100	11,400
Shares withheld to settle employees' minimum statutory obligation for applicable income and other employment taxes		3,400	4,200
Performance Based Stock Options | 2015 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		$ 31,000
Performance Based Stock Options | GAAP Revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance metrics for stock option awards		33.3333%
Performance Based Stock Options | Revenue ex -TAC
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance metrics for stock option awards		33.3333%
Performance Based Stock Options | Adjusted EBITDA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial performance metrics for stock option awards		33.3333%
Performance Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, recognition period		12 months
Performance Based Restricted Stock Units | 2015 Tranche
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units grant date fair value		$ 9,000
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		11,000
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		$ 19,000
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 for each performance period		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 for each performance period		200.00%

Restricted Stock Units Activity

Restricted Stock Units Activity (Detail) - Restricted Stock Units (RSUs) - $ / shares shares in Thousands		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awarded and unvested, Beginning balance	[1]	40,677
Granted	[2]	12,767
Assumed in acquisitions		0
Vested		(9,100)	(11,400)
Forfeited		(7,243)
Awarded and unvested, Ending balance	[1]	37,101
Weighted-average grant date fair value per share, Beginning balance	[1]	$ 32.38
Weighted-average grant date fair value per share, granted shares	[2]	43.82
Weighted-average grant date fair value per share, assumed in acquisitions		0
Weighted-average grant date fair value per share, vested shares		27.88
Weighted-average grant date fair value per share, forfeited shares		32.67
Weighted-average grant date fair value per share, Ending balance	[1]	$ 37.37
[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 six months ended June 30, 2015 (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 six months ended June 30, 2015.

Restructuring Charges (Reversal

Restructuring Charges (Reversals), Net (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
Employee severance pay and related costs	$ 7,149	$ 82	$ 51,149	$ 3,673
Non-cancelable lease, contract termination, and other charges	13,403	61,906	22,020	68,438
Reversals of previous charges	(790)	(2,336)	(4,021)	(2,972)
Non-cash accelerations of stock-based compensation expense			2,705
Other non-cash credits	(74)	(7,031)	(933)	(7,031)
Restructuring charges, net	$ 19,688	$ 52,621	$ 70,920	$ 62,108

Restructuring Charges (Revers80

Restructuring Charges (Reversals), Net - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	$ 19,688	$ 52,621	$ 70,920	$ 62,108
Restructuring liability	69,349		69,349		$ 83,608
Americas Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	12,000	50,000	53,000	55,000
Restructuring liability	58,210		58,210		65,949
Europe Middle East Africa Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	7,000	$ 3,000	14,000	$ 7,000
Restructuring liability	11,058		11,058		16,797
Asia Pacific Segment
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net	1,000		4,000
Restructuring liability	81		81		$ 862
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring liability	8,000		8,000
Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Restructuring liability	$ 61,000		$ 61,000

Restructuring Accrual Activity

Restructuring Accrual Activity (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
Beginning balance			$ 83,608
Restructuring charges	$ 19,688	$ 52,621	70,920	$ 62,108
Cash paid			(82,766)
Non-cash accelerations of stock-based compensation expense			(2,705)
Foreign currency translation and other adjustments			292
Ending balance	$ 69,349		$ 69,349

Restructuring Accrual by Report

Restructuring Accrual by Reportable Segment (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Total restructuring accruals	$ 69,349	$ 83,608
Americas Segment
Restructuring Cost and Reserve [Line Items]
Total restructuring accruals	58,210	65,949
Europe Middle East Africa Segment
Restructuring Cost and Reserve [Line Items]
Total restructuring accruals	11,058	16,797
Asia Pacific Segment
Restructuring Cost and Reserve [Line Items]
Total restructuring accruals	$ 81	$ 862

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2012
Income Taxes [Line Items]
Income tax expense	$ 58,495	$ 8,143	$ 17,595	$ 12,360
Undistributed earnings of foreign subsidiaries	3,000,000		3,000,000
Unrecognized tax benefits	1,041,000		1,041,000
Unrecognized tax benefits recorded on condensed consolidated balance sheets	987,000		987,000
Increase (decrease) in gross unrecognized tax benefit			17,000
Reasonably possible reduction in unrecognized tax benefits in the next twelve months	153,000		153,000
Indirect tax assessed, not accrued	$ 110,000		$ 110,000
Alibaba Group
Income Taxes [Line Items]
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		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Revenue		$ 1,243,265	$ 1,084,191	$ 2,469,235	$ 2,216,921
TAC		200,230	43,826	383,369	89,735
Revenue ex-TAC		1,043,035	1,040,365	2,085,866	2,127,186
Global operating costs	[1]	649,915	631,801	1,334,006	1,282,659
Gain on sale of patents		(9,100)	(61,500)	(11,100)	(61,500)
Depreciation and amortization		153,679	146,860	305,218	304,394
Stock-based compensation expense		125,130	102,445	240,826	211,626
Restructuring charges, net		19,688	52,621	70,920	62,108
Income (loss) from operations		(44,794)	38,437	(132,148)	68,616
Americas Segment
Segment Reporting Information [Line Items]
Revenue		992,210	805,535	1,976,931	1,672,463
TAC		180,822	30,296	347,477	64,390
Revenue ex-TAC		811,388	775,239	1,629,454	1,608,073
Direct costs by segment	[2]	76,148	60,167	134,892	120,977
Restructuring charges, net		12,000	50,000	53,000	55,000
Europe Middle East Africa Segment
Segment Reporting Information [Line Items]
Revenue		85,830	97,847	166,916	189,417
TAC		12,950	10,212	24,654	19,405
Revenue ex-TAC		72,880	87,635	142,262	170,012
Direct costs by segment	[2]	20,551	21,395	40,702	43,339
Restructuring charges, net		7,000	3,000	14,000	7,000
Asia Pacific Segment
Segment Reporting Information [Line Items]
Revenue		165,225	180,809	325,388	355,041
TAC		6,458	3,318	11,238	5,940
Revenue ex-TAC		158,767	177,491	314,150	349,101
Direct costs by segment	[2]	51,818	$ 48,139	102,550	$ 94,967
Restructuring charges, net		$ 1,000		$ 4,000
[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. Beginning in the fourth quarter of 2014, marketing, media, costs associated with Yahoo Properties and other ad operation costs are managed globally and included as global costs. Prior period amounts have been revised to conform to the current presentation.
[2]	Direct costs for each segment include costs associated with the local sales teams and other cost of revenue. Prior to the fourth quarter of 2014, marketing, media, costs associated with Yahoo Properties and ad operation costs were managed locally and included as direct costs for each segment. Such costs are now included in global operating costs. Prior period amounts have been revised to conform to the current presentation.

Capital Expenditures by Segment

Capital Expenditures by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Total capital expenditures, net	$ 155,442	$ 107,358	$ 290,363	$ 192,013
Americas Segment
Segment Reporting Information [Line Items]
Total capital expenditures, net	139,935	100,340	262,188	164,317
Europe Middle East Africa Segment
Segment Reporting Information [Line Items]
Total capital expenditures, net	6,978	3,274	14,648	19,036
Asia Pacific Segment
Segment Reporting Information [Line Items]
Total capital expenditures, net	$ 8,529	$ 3,744	$ 13,527	$ 8,660

Property and Equipment Net by S

Property and Equipment Net by Segment (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Total property and equipment, net	$ 1,524,539	$ 1,487,684
Americas Segment
Segment Reporting Information [Line Items]
Total property and equipment, net	1,417,314	1,383,384
Americas Segment | United States
Segment Reporting Information [Line Items]
Total property and equipment, net	1,416,724	1,382,597
Americas Segment | Other Americas
Segment Reporting Information [Line Items]
Total property and equipment, net	590	787
Europe Middle East Africa Segment
Segment Reporting Information [Line Items]
Total property and equipment, net	39,841	34,649
Asia Pacific Segment
Segment Reporting Information [Line Items]
Total property and equipment, net	$ 67,384	$ 69,651

Revenues for Groups of Similar

Revenues for Groups of Similar Services (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue from External Customer [Line Items]
Total revenue	$ 1,243,265	$ 1,084,191	$ 2,469,235	$ 2,216,921
Search
Revenue from External Customer [Line Items]
Total revenue	521,126	428,418	1,052,792	873,185
Display
Revenue from External Customer [Line Items]
Total revenue	500,376	436,053	964,109	889,277
Other
Revenue from External Customer [Line Items]
Total revenue	221,763	219,720	452,334	454,459
United States
Revenue from External Customer [Line Items]
Total revenue	965,228	771,959	1,928,739	1,605,616
International
Revenue from External Customer [Line Items]
Total revenue	$ 278,037	$ 312,232	$ 540,496	$ 611,305

Search Agreement with Microso88

Search Agreement with Microsoft Corporation - Additional Information (Detail) - USD ($) $ in Millions	May. 01, 2015	Apr. 15, 2015	Feb. 23, 2015	Dec. 09, 2010	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
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					37.00%	36.00%	38.00%	36.00%
Revenue collected from Search Agreement									$ 52
Uncollected Search Agreement revenue							$ 328		$ 330
Term of license of core search technology with Microsoft, years				10 years
Maximum
Search Agreement With Microsoft Corporation [Line Items]
Revenue collected from Search Agreement							$ 1

Subsequent Events (Detail)

Subsequent Events (Detail)	Jul. 24, 2015	Jun. 30, 2015
After Amendment 2
Subsequent Event [Line Items]
Unsecured revolving credit facility expiration date		Oct. 8, 2015
Subsequent Event | After Amendment 3
Subsequent Event [Line Items]
Unsecured revolving credit facility expiration date	Jul. 22, 2016