HomeAway 10-Q 6 Nov 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Trading Symbol	AWAY
Entity Registrant Name	HOMEAWAY INC
Entity Central Index Key	1,366,684
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		96,237,408

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 301,293	$ 292,325
Short-term investments	618,343	520,844
Accounts receivable, net of allowance for doubtful accounts of $633 and $663 as of September 30, 2015 and December 31, 2014, respectively	24,019	23,189
Income tax receivable	1,680	1,900
Prepaid expenses and other current assets	18,269	17,913
Deferred tax assets	9,384	8,774
Total current assets	972,988	864,945
Property and equipment, net	60,773	56,173
Goodwill	460,049	493,671
Intangible assets, net	58,003	70,456
Non-marketable investments	39,549	35,285
Deferred tax assets	880	1,545
Other non-current assets	6,295	8,053
Total assets	1,598,537	1,530,128
Current liabilities:
Accounts payable	7,487	8,281
Income tax payable	907	1,344
Accrued expenses	50,446	50,255
Deferred revenue	193,769	170,522
Total current liabilities	252,609	230,402
Convertible senior notes, net	329,905	316,181
Deferred revenue, less current portion	2,981	3,179
Deferred tax liabilities	24,376	26,624
Other non-current liabilities	19,817	12,192
Total liabilities	$ 629,688	$ 588,578
Commitments and contingencies (see Note 6)
Redeemable noncontrolling interests (see Note 8)	$ 9,033	$ 9,742
Stockholders' equity:
Common stock: $0.0001 par value; 350,000,000 shares authorized; 96,162,374 and 94,515,344 shares issued and outstanding as of September 30, 2015 and December 31, 2014, respectively	10	9
Additional paid-in capital	1,076,292	1,022,586
Accumulated other comprehensive loss	(60,608)	(28,053)
Accumulated deficit	(55,878)	(62,734)
Total stockholders' equity	959,816	931,808
Total liabilities, redeemable noncontrolling interests and stockholders' equity	$ 1,598,537	$ 1,530,128

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Accounts receivable, Allowance for doubtful accounts	$ 633	$ 663
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	350,000,000	350,000,000
Common stock, shares issued	96,162,374	94,515,344
Common stock, shares outstanding	96,162,374	94,515,344

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue:
Listing	$ 106,484	$ 96,601	$ 301,281	$ 278,459
Other	24,198	20,511	74,272	58,591
Total revenue	130,682	117,112	375,553	337,050
Costs and expenses:
Cost of revenue (exclusive of amortization shown separately below)	19,361	16,926	58,472	50,291
Product development	22,058	20,212	65,235	56,952
Sales and marketing	42,963	42,234	143,850	117,251
General and administrative	23,874	22,995	72,115	69,467
Amortization expense	2,819	3,397	8,713	10,163
Total costs and expenses	111,075	105,764	348,385	304,124
Operating income	19,607	11,348	27,168	32,926
Other income (expense):
Interest expense	(4,718)	(4,373)	(13,971)	(8,842)
Interest income	927	552	2,426	1,117
Other expense, net	(338)	(1,434)	(633)	(6,452)
Total other income (expense)	(4,129)	(5,255)	(12,178)	(14,177)
Income before income taxes	15,478	6,093	14,990	18,749
Income tax expense	(5,625)	(845)	(9,757)	(5,909)
Net income	9,853	5,248	5,233	12,840
Less: Impact of noncontrolling interests, net of tax	(564)	336	(709)	(382)
Net income attributable to HomeAway, Inc.	$ 10,417	$ 4,912	$ 5,942	$ 13,222
Net income per share attributable to HomeAway Inc.:
Basic	$ 0.11	$ 0.05	$ 0.06	$ 0.14
Diluted	$ 0.11	$ 0.05	$ 0.06	$ 0.14
Weighted average number of shares outstanding:
Basic	95,716	94,106	95,162	93,507
Diluted	97,688	96,389	97,389	96,358

Condensed Consolidated Stateme5

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 9,853	$ 5,248	$ 5,233	$ 12,840
Other comprehensive income (loss):
Foreign currency translation adjustments (net of tax)	(19,823)	(14,793)	(29,024)	(6,463)
Unrealized gain (loss) on short-term investments (net of tax)	209	(491)	618	(642)
Defined benefit pension plan adjustments	96		(4,149)
Total other comprehensive loss, net of tax	(19,518)	(15,284)	(32,555)	(7,105)
Less: Comprehensive loss attributable to noncontrolling interests	(655)	(515)	(1,623)	(1,233)
Currency translation adjustments attributable to noncontrolling interests		12		29
Comprehensive income (loss) attributable to HomeAway, Inc.	$ (9,010)	$ (9,509)	$ (25,699)	$ 6,997

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - 9 months ended Sep. 30, 2015 - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]
Beginning Balance, value at Dec. 31, 2014	$ 931,808	$ 9	$ 1,022,586	$ (28,053)	$ (62,734)
Beginning Balance, shares at Dec. 31, 2014		94,515,344
Issuance of stock under Company plans, net of shares withheld for taxes, value	9,640	$ 1	9,639
Issuance of stock under Company plans, net of shares withheld for taxes, shares		1,647,000
Stock-based compensation	37,487		37,487
Excess tax benefits related to employee stock options	7,494		7,494
Other comprehensive loss	(32,555)			(32,555)
Net income (loss) attributable to HomeAway, Inc.	5,942		(914)		6,856
Ending Balance, value at Sep. 30, 2015	$ 959,816	$ 10	$ 1,076,292	$ (60,608)	$ (55,878)
Ending Balance, shares at Sep. 30, 2015	96,162,374	96,162,374

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities
Net income	$ 5,233	$ 12,840
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	16,204	12,091
Amortization of intangible assets	8,713	10,163
Amortization of debt discount and transaction costs	13,764	8,720
Amortization of premiums on securities and other	8,683	4,288
Stock-based compensation	37,487	35,582
Excess tax benefit related to stock-based compensation	(8,161)	(2,583)
Deferred income taxes	(1,368)	(435)
Net unrealized foreign exchange loss (gain)	15,564	(6,057)
Realized loss (gain) on foreign currency forwards	(15,081)	12,011
Changes in operating assets and liabilities, net of assets and liabilities assumed in business combinations:
Accounts receivable	(2,172)	(2,591)
Income tax receivable	(426)	(1,590)
Prepaid expenses and other current assets	(2,519)	(4,938)
Accounts payable	1,151	6,668
Accrued expenses	1,748	(3,394)
Income tax payable	7,087	1,272
Deferred revenue	29,667	25,392
Other non-current liabilities	3,520	3,976
Net cash provided by operating activities	119,094	111,415
Cash flows from investing activities
Acquisition of businesses, net of cash acquired		(17,847)
Change in restricted cash	122	166
Purchases of intangibles and other assets	(278)	(303)
Purchases and sales of non-marketable investments	(3,866)	(10,135)
Purchases of short-term investments	(379,387)	(473,331)
Proceeds from maturities and redemptions of marketable securities	272,022	23,048
Proceeds from sales of marketable securities	1,525	4,358
Net settlement of foreign currency forwards	15,081	(12,011)
Purchases of property and equipment	(23,792)	(20,456)
Net cash used in investing activities	(118,573)	(506,511)
Cash flows from financing activities
Proceeds from borrowings on convertible senior notes, net		390,978
Proceeds from issuance of warrants		38,278
Purchase of convertible note hedge		(85,853)
Other financing activities		(919)
Proceeds from exercise of options to purchase common stock	9,640	22,827
Excess tax benefit from stock-based compensation	8,161	2,583
Net cash provided by financing activities	17,801	367,894
Effect of exchange rate changes on cash and cash equivalents	(9,354)	(5,303)
Net increase (decrease) in cash and cash equivalents	8,968	(32,505)
Cash and cash equivalents at beginning of period	292,325	324,608
Cash and cash equivalents at end of period	301,293	292,103
Cash paid for interest	503	253
Cash paid for taxes, net of refunds	2,091	3,727
Supplemental disclosure of non-cash activities
Changes to accrued capital expenditures	2,455
Changes to redemption value of noncontrolling interests	$ 914	$ 851

Description of Business

Description of Business	9 Months Ended
	Sep. 30, 2015
Accounting Policies [Abstract]
Description of Business	1. Description of Business HomeAway, Inc. (the “Company”) operates an online vacation rental property marketplace that enables property owners and managers to market properties available for rental to vacation travelers who rely on the Company’s websites to search for and find available properties. Property owners and managers pay listing fees to provide detailed listings of their properties on the Company’s websites and reach a broad audience of travelers seeking vacation rentals. Listing fees are typically annual subscriptions or payments on a performance basis, based on bookings or inquiries made by travelers to property owners and managers. A listing includes published detailed property information, including photographs, descriptions, location, pricing, availability and contact information. The Company also sells, directly or through third parties, complementary products, including travel guarantees, insurance products and property management software and services. Travelers use the network of websites to search for vacation rentals meeting their desired criteria, including location, size and price. Travelers that find properties meeting their requirements through the Company’s marketplace are able to make reservations online or contact property owners and managers directly by phone or through form-based communication tools on the Company’s websites. The Company is a Delaware corporation headquartered in Austin, Texas.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2015
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of HomeAway, Inc. and its wholly and majority-owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States, or GAAP, for interim financial reporting and applicable quarterly reporting regulations of the Securities and Exchange Commission, (the “SEC”). All significant intercompany transactions and balances have been eliminated in consolidation. In the opinion of the Company’s management, the accompanying interim unaudited condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements and include all adjustments, consisting of normal recurring adjustments and those items discussed in these notes, necessary for a fair statement of the Company’s financial position, as of September 30, 2015 and December 31, 2014, results of operations for the three and nine months ended September 30, 2015 and September 30, 2014, comprehensive income (loss) for the three and nine months ended September 30, 2015 and September 30, 2014, cash flows for the nine months ended September 30, 2015 and September 30, 2014, and changes in stockholders’ equity for the nine months ended September 30, 2015. Certain information and disclosures normally included in the notes to the annual financial statements prepared in accordance with GAAP have been omitted from these interim condensed consolidated financial statements pursuant to the rules and regulations of the SEC. Accordingly, these unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014. Operating results for this interim period are not necessarily indicative of the results that may be expected for the year ending December 31, 2015, or for any other period. Business Segment The Company has one operating segment consisting of various products and services related to its online marketplace of accommodation rental listings. The Company’s chief operating decision maker is the Chief Executive Officer. The chief operating decision maker allocates resources and assesses performance of the business and other activities at the single operating segment level. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements; and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates. These differences could have a material effect on the Company’s future results of operations and financial position. Significant items subject to estimates and assumptions include certain revenues, traveler guarantees, the allowance for doubtful accounts, marketable and non-marketable investments, goodwill and other indefinite-lived intangible assets, definite-lived intangible assets, depreciation and amortization, stock-based compensation, deferred income taxes and noncontrolling interests. Fair Value of Financial Instruments Fair value is defined as the price received from the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. To increase the comparability of fair value measures, the following hierarchy prioritizes the inputs to valuation methodologies used to measure fair value: Level 1: Valuations based on quoted prices for identical assets and liabilities in active markets. Level 2: Valuations based on observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. Level 3: Valuations based on unobservable inputs reflecting the Company’s assumptions, consistent with reasonably available assumptions made by other market participants. These valuations require significant judgment. The Company’s financial instruments classified as Level 1 are valued using quoted prices generated by market transactions involving identical assets. Instruments classified as Level 2 are valued using non-binding market consensus prices corroborated with observable market data; quoted market prices for similar instruments in active markets; or pricing models, such as a discounted cash flow model, with significant inputs derived from or corroborated with observable market data. The Company did not hold financial instruments categorized as Level 3 in any period presented. Short-term investments are classified as available-for-sale and reported at fair value using the specific identification method. Unrealized gains and losses are excluded from earnings and reported as a component of other comprehensive income (loss), net of tax. Additionally, the Company periodically assesses whether an other than temporary impairment loss on investments has occurred due to declines in fair value or other market conditions. Declines in fair value considered other-than-temporary are recorded as an impairment in the condensed consolidated statement of operations. The Company did not record impairments of its investments during any of the periods presented. The carrying amounts of certain of the Company’s financial instruments, including cash and cash equivalents, accounts receivable, prepaid expenses and other current assets, accounts payable, accrued liabilities and deferred revenue approximate fair value because of the relatively short maturity of these instruments. The following table summarizes the basis used to measure certain financial assets at fair value on a recurring basis in the Company’s condensed consolidated balance sheet at September 30, 2015 (in thousands): Balance as of Quoted Prices in Significant Significant Assets: Cash equivalents Money market funds $ 151,691 $ 151,691 $ — $ — Total cash equivalents 151,691 151,691 — — Restricted cash Time deposits 1,983 — 1,983 — Total restricted cash 1,983 — 1,983 — Short-term investments U.S. government agency bonds 23,339 — 23,339 — Time deposits 39,529 — 39,529 — Corporate bonds 346,782 — 346,782 — International government bonds 21,390 — 21,390 — Municipal bonds 187,303 — 187,303 — Total short-term investments 618,343 — 618,343 — Total financial assets $ 772,017 $ 151,691 $ 620,326 $ — The following table summarizes the basis used to measure certain financial assets at fair value on a recurring basis in the Company’s condensed consolidated balance sheet at December 31, 2014 (in thousands): Balance as of Quoted Prices in Significant Significant Assets: Cash equivalents Money market funds $ 183,008 $ 183,008 $ — $ — Municipal bonds 1,001 — 1,001 — Total cash equivalents 184,009 183,008 1,001 — Restricted cash — Time deposits 2,058 — 2,058 — Total restricted cash 2,058 — 2,058 — Short-term investments Time deposits 21,726 — 21,726 — Corporate bonds 353,212 — 353,212 — International government bonds 1,501 — 1,501 — Municipal bonds 140,406 — 140,406 — Commercial paper 3,999 — 3,999 — Total short-term investments 520,844 — 520,844 — Total financial assets $ 706,911 $ 183,008 $ 523,903 $ — Cash and Cash Equivalents Cash and cash equivalents include investments in demand deposits, money market funds, and municipal bonds readily convertible into cash. Cash and cash equivalents are stated at cost, which approximates fair value. The Company considers all highly liquid investments purchased with an original maturity date of three months or less to be cash equivalents. Cash and cash equivalents consisted of the following (in thousands): September 30, December 31, Demand deposit accounts $ 149,602 $ 108,316 Money market funds 151,691 183,008 Municipal bonds — 1,001 Total cash and cash equivalents $ 301,293 $ 292,325 Restricted Cash Restricted cash of $2,200,000 and $2,492,000 at September 30, 2015 and December 31, 2014, respectively, was held in accounts owned by the Company to secure property licenses, leased office space, credit card availability and reimbursable direct debits due from the Company. Restricted cash is recorded as “Other non-current assets” on the Company’s condensed consolidated balance sheets. Short-term Investments Short-term investments generally consist of marketable securities with original maturities greater than ninety days as of the date of purchase. Investments in which the Company has the ability and intent, if necessary, to liquidate in order to support its current operations, including those with contractual maturities greater than one year from the date of purchase, are classified as short-term. The Company’s investment securities are classified as available-for-sale and presented at estimated fair value with any unrealized gains and losses included in other comprehensive income (loss). Cash flows from purchases, sales and maturities of available-for-sale securities are classified as investing activities and reported gross, including any related premiums or discounts. Premiums related to purchases of available-for-sale securities were $9,240,000 and $11,239,000 during the nine months ended September 30, 2015 and 2014, respectively. Short-term investments consisted of the following (in thousands): September 30, 2015 Gross Cost Gross Gross Estimated U.S government agency bonds $ 23,375 $ 3 $ (39 ) $ 23,339 Time deposits 39,529 — — 39,529 Corporate bonds 346,949 141 (308 ) 346,782 International government bonds 21,418 — (28 ) 21,390 Municipal bonds 187,254 83 (34 ) 187,303 Total short-term investments $ 618,525 $ 227 $ (409 ) $ 618,343 December 31, 2014 Gross Cost Gross Gross Estimated Time deposits $ 21,726 $ — $ — $ 21,726 Corporate bonds 353,957 7 (752 ) 353,212 International government bonds 1,504 — (3 ) 1,501 Municipal bonds 140,455 45 (94 ) 140,406 Commercial paper 3,999 — — 3,999 Total short-term investments $ 521,641 $ 52 $ (849 ) $ 520,844 For fixed income securities with unrealized losses as of September 30, 2015, the Company does not intend to sell any of these investments; and the Company expects it will not be required to sell any of these investments before recovery of the entire amortized cost basis. The Company has evaluated these fixed income securities and determined that no credit losses exist. Accordingly, the Company has determined that the unrealized losses on fixed income securities as of September 30, 2015 were temporary in nature. The following table summarizes the contractual underlying maturities of the Company’s short-term investments (in thousands): September 30, 2015 Less than 1 Year 1 to 3 Years Total U.S government agency bonds $ 597 $ 22,742 $ 23,339 Time deposits 25,951 13,578 39,529 Corporate bonds 203,039 143,743 346,782 International government bonds 15,192 6,198 21,390 Municipal bonds 131,167 56,136 187,303 Total short-term investments $ 375,946 $ 242,397 $ 618,343 December 31, 2014 Less than 1 Year 1 to 3 Years Total Time deposits $ 21,479 $ 247 $ 21,726 Corporate bonds 240,570 112,642 353,212 International government bonds 1,501 — 1,501 Municipal bonds 87,615 52,791 140,406 Commercial paper 3,999 — 3,999 Total short-term investments $ 355,164 $ 165,680 $ 520,844 Non-marketable Cost Investments During the nine months ended September 30, 2015, the Company invested $2,799,000 for a non-controlling equity interest in a privately-held vacation rental website company in Canada and $2,000,000 for a non-controlling equity interest in a privately-held vacation rental website company in Turkey. The Company also has a non-controlling equity interest in a privately-held company in China with a carrying value of $19,498,000 and a non-controlling equity investment with a carrying value of $15,000,000 in a privately-held company in the United States that operates a travel research application and website. The Company’s investment in these privately-held companies is reported using the cost method of accounting and adjusted to fair value when an event or circumstance indicates an other-than-temporary decline in value has occurred. No event or circumstance indicating an other-than-temporary decline in value of the Company’s interest in the non-marketable cost investments has been identified during any of the periods presented. Accounts Receivable Accounts receivable are generated from credit card merchants who process the Company’s property listing sales, property listings sold on installments to the Company’s customers, partners who advertise the Company’s inventory on their websites and/or sell ancillary products to the Company’s customers and Internet display advertising. Accounts receivable outstanding beyond the contractual payment terms are considered past due. The Company determines its allowance for doubtful accounts by estimating losses on receivables based on known troubled accounts and historical experiences of losses incurred. Property and Equipment Property and equipment are recorded at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets. Computer equipment and purchased software are generally depreciated over three years. Furniture and fixtures are generally depreciated over five to ten years. Leasehold improvements are depreciated over the shorter of the contractual lease period or estimated useful life. Upon disposal, property and equipment and the related accumulated depreciation are removed and the resulting gain or loss is reflected in the condensed consolidated statements of operations. Ordinary maintenance and repairs are charged to expense, while expenditures that extend the physical or economic life of the assets are capitalized. The Company capitalizes certain internally developed software and website development costs. These capitalized costs were approximately $38,759,000 and $36,038,000 at September 30, 2015 and December 31, 2014, respectively, and are included in property and equipment, net, in the condensed consolidated balance sheets. Internally developed software costs are generally depreciated over five years. The Company recorded depreciation expense on internally developed software and website development costs as follows (in thousands): Three Months Ended Nine Months Ended 2015 2014 2015 2014 Depreciation expense on internally developed software and website development costs $ 1,677 $ 1,343 $ 4,867 $ 3,947 Goodwill and Intangible Assets Goodwill arises from business combinations and is measured as the excess of the purchase consideration over the sum of the acquisition-date fair values of tangible and identifiable intangible assets acquired, less any liabilities assumed. The Company uses estimates and assumptions to value assets acquired and liabilities assumed at the acquisition date, and these estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, adjustments to the assets acquired and liabilities assumed are recorded with the corresponding offset to goodwill. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to the condensed consolidated statements of operations. Goodwill and intangible assets deemed to have indefinite useful lives, such as certain trade names, are not amortized. Tests for impairment of goodwill and indefinite-lived intangible assets are performed on an annual basis or when events or circumstances indicate that the carrying amount may not be recoverable. Circumstances that could trigger an impairment test outside of the annual test include but are not limited to: a significant adverse change in the business climate or legal factors, adverse cash flow trends, an adverse action or assessment by a regulator, unanticipated competition, loss of key personnel, decline in stock price and the results of tests for recoverability of a significant asset group. The Company has determined that no triggering event occurred during any of the periods presented. For goodwill and indefinite-lived intangible assets, the Company completes a “Step 0” analysis, which involves evaluating qualitative factors, including macroeconomic conditions, industry and market considerations, cost factors and overall financial performance related to its goodwill and its indefinite-lived intangible assets. If the Company’s “Step 0” analysis indicates that it is more likely than not that the fair value of a reporting unit or of an indefinite-lived intangible asset is less than its carrying amount, then the Company would perform a quantitative two-step impairment test. The quantitative analysis compares the fair value of the Company’s reporting unit or indefinite-lived intangible assets to its carrying amount, and an impairment loss is recognized equivalent to the excess of the carrying amount over fair value. If, after assessing the totality of events or circumstances, the Company determines that it is more likely than not that the fair value of a reporting unit or indefinite-lived intangible asset exceeds its carrying amount, then the quantitative impairment tests are unnecessary. The Company performs an evaluation of goodwill and indefinite-lived intangible assets for impairment annually in the fourth quarter of its fiscal year. The determination of whether or not goodwill or indefinite-lived intangible assets have become impaired involves a significant level of judgment. Changes in the Company’s strategy and/or market conditions could significantly impact these judgments and require adjustments to recorded amounts of goodwill or indefinite-lived intangible assets. No impairment of goodwill or indefinite-lived intangible assets was identified in any of the periods presented. Identifiable intangible assets consist of trade names, customer relationships, developed technology, domain names and contractual non-competition agreements associated with acquired businesses. Intangible assets with finite lives are amortized over their estimated useful lives on a straight-line basis and reviewed for impairment whenever events or changes in circumstances indicate that an asset’s carrying value may not be recoverable (see Note 3). The straight-line method of amortization represents the Company’s best estimate of the distribution of the economic value of the identifiable intangible assets. Impairment of Long-lived Assets The Company evaluates long-lived assets held for use, such as property and equipment, for impairment whenever events or changes in circumstances indicate the carrying value of an asset may not be recoverable. An impairment loss is recognized when estimated future undiscounted cash flows expected from the use of the asset plus net proceeds expected from disposition of the asset, if any, are less than the carrying value of the asset. When an impairment loss is recognized, the carrying amount of the asset is reduced to its estimated fair value in the period in which the determination is made. No material impairments of long-lived assets have been recorded during any of the periods presented. Leases The Company leases facilities in several countries around the world and certain equipment under non-cancelable lease agreements. The terms of certain lease agreements provide for rental payments on a graduated basis. Rent expense is recognized on a straight-line basis over the lease period and accrued as rent expense incurred but not paid. Revenue Recognition The Company recognizes revenue when persuasive evidence of an agreement exists, delivery has occurred, the sales price is fixed or determinable and collectability is reasonably assured. The Company accounts for sales incentives to customers as a reduction of revenue at the time revenue is recognized from the related product sale. The Company also reports revenue net of any sales taxes collected. The Company generates a significant portion of its revenue from customers purchasing online advertising services related to the listing of their properties for rent, primarily on a subscription basis over a fixed-term. The Company also generates revenue based on the number of traveler inquiries and reservation bookings for property listings on the Company’s websites, local and national Internet display advertisers, license of property management software and ancillary products and services. Payments for term-based subscriptions received in advance of services rendered are recorded as deferred revenue and recognized on a straight-line basis over the listing period. Revenue for inquiry-based contracts are determined on a fixed fee-per-inquiry basis as stated in the arrangement and recognized when the service has been performed. The Company earns commission revenue for reservations made online through its websites, which is calculated as a percentage of the value of the reservation. This revenue is earned as the services are performed or as the customers’ refund privileges lapse and is included in listing revenue in the condensed consolidated statements of operations. Internet display advertising revenue is generated primarily from advertisements appearing on the Company’s websites. Depending upon the terms, revenue is earned each time an impression is delivered, a user clicks on an ad, a graphic ad is displayed, or a user clicks-through the ad and takes a specified action on the destination site. The Company sells gift cards with no expiration date to travelers and does not charge administrative fees on unused cards. There is a portion of the gift card obligation that, based on historical redemption patterns, will not be used by the Company’s customers and is not required to be remitted to relevant jurisdictions (“breakage”). At the point of sale, the Company recognizes estimated breakage as deferred revenue and amortizes it over 48 months based on historical redemption patterns. The Company also records commission revenue for each gift card sale over the same 48-month redemption period. Through its professional software for bed and breakfasts and professional property managers, the Company also makes selected, online bookable properties available to online travel agencies and channel partners. The Company receives a percentage of the transaction value or a fee from the property manager for making this inventory available, which is recognized when earned. This revenue is included in other revenue in the condensed consolidated statements of operations. The Company generates revenue from the sale of hosted software solutions where revenue is recognized on a straight-line basis over the contract term, generally one year. Certain implementation services are essential to the customer’s use of the Company’s hosted software solutions. Accordingly, the Company recognizes implementation revenue ratably over the estimated period of the hosting relationship, which is three years. Recognition starts once the product has been made available to the customer. Training and consulting revenue is recognized upon delivery of the training or consulting services to the end customer. Stock-Based Compensation Stock-based compensation for option awards is recognized based upon the estimated grant date fair value of the awards measured using the Black–Scholes valuation model. The fair value of restricted stock awards is determined based on the number of shares granted and the fair value of the Company’s common stock on the grant date. Fair value is generally recognized as an expense on a straight-line basis, net of estimated forfeitures, over the requisite service period. When estimating forfeitures, the Company considers voluntary termination behaviors as well as trends of actual option forfeitures. The Company uses the “with and without” approach in determining the order in which tax attributes are utilized. As a result, the Company only recognizes a tax benefit from stock-based awards in additional paid-in capital if an incremental tax benefit is realized after all other tax attributes currently available to the Company have been utilized. When tax deductions from stock-based awards are less than the cumulative book compensation expense, the tax effect of the resulting difference is charged first to additional paid-in capital to the extent of the Company’s pool of windfall tax benefits with any remainder recognized in income tax expense. The Company has determined that it has a sufficient windfall pool available and therefore no amounts have been recognized as income tax expense. In addition, the Company accounts for the indirect effects of stock-based awards on other tax attributes through the condensed consolidated statements of operations. The gross benefits of tax deductions in excess of recognized compensation costs are reported as financing cash inflows, but only when such excess tax benefits are realized by a reduction to current taxes payable. The following table summarizes the excess tax benefit that the Company recorded (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Excess tax benefit from stock-based compensation, net $ 5,200 $ 1,362 $ 7,494 $ 2,583 This tax benefit has been recorded as additional paid-in capital on the Company’s condensed consolidated balance sheets. Defined Benefit Pension Plan During the nine months ended September 30, 2015, the Company recorded an adjustment to correct a prior period accounting error related to the Company’s defined benefit pension plan for one of its foreign subsidiaries. The adjustment increased the Company’s liabilities by approximately $4,200,000 and decreased other comprehensive income by approximately $4,000,000 and income before income taxes by approximately $200,000 as of and during the nine months ended September 30, 2015. The Company does not believe these adjustments are material to the consolidated financial statements for the three and nine months ended September 30, 2015, the expected annual results for 2015 or to the consolidated financial statements of any prior period. Income Taxes The Company recognizes income taxes using an asset and liability approach. This approach requires the recognition of deferred tax liabilities and assets for the future tax consequences of events that have been recognized in the Company’s consolidated financial statements or tax returns. The measurement of deferred taxes is based on provisions of the enacted tax law and the effects of future changes in tax laws or rates are not anticipated. A valuation allowance is recognized if, based on the weight of available evidence, it is more likely than not that some portion or all of the deferred tax asset will not be realized. Evaluating the need for an amount of a valuation allowance for deferred tax assets requires significant judgment and analysis of the positive and negative evidence available, including past operating results, estimates of future taxable income, reversals of existing taxable temporary differences and the feasibility of tax planning in order to determine whether all or some portion of the deferred tax assets will not be realized. Based on the available evidence and judgment, the Company has determined that it is more likely than not that certain loss carryforwards will not be realized; therefore, the Company has established a valuation allowance for such deferred tax assets to reduce the loss carryforward assets to amounts expected to be utilized. The Company may be subject to income tax audits by the respective tax authorities in any or all of the jurisdictions in which the Company operates. The Company is currently undergoing audits in the United States as well as at its subsidiary in the United Kingdom. Significant judgment is required in determining uncertain tax positions. The Company recognizes the benefit of uncertain income tax positions only if these positions are more likely than not to be sustained. Also, the recognized income tax benefit is measured at the largest amount that is more than 50% likely of being realized. The Company adjusts these reserves in light of changing facts and circumstances, such as the closing of an audit or the refinement of an estimate. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest and penalties related to unrecognized tax benefits as a component of income tax expense. The countries in which the Company may be subject to potential examination by tax authorities include Australia, Brazil, Colombia, France, Germany, Italy, the Netherlands, New Zealand, Singapore, Spain, Switzerland, Thailand, the United Kingdom and the United States. The calculation of the Company’s tax liabilities involves the inherent uncertainty associated with the application of complex tax laws. As a multinational corporation, the Company conducts its business in many countries and is subject to taxation in many jurisdictions. The taxation of the Company’s business is subject to the application of various and sometimes conflicting tax laws and regulations as well as multinational tax conventions. The Company’s effective tax rate is highly dependent upon the geographic distribution of its worldwide earnings or losses, the tax regulations and tax rates in each geographic region, the availability of tax credits and carryforwards, and the effectiveness of its tax planning strategies. The application of tax laws and regulations is subject to legal and factual interpretation, judgment and uncertainty. Tax laws themselves are subject to change as a result of changes in fiscal policy, changes in legislation, and the evolution of regulations and court rulings. Consequently, taxing authorities may impose tax assessments or judgments against the Company that could materially impact its tax liability and/or its effective income tax rate. The Company believes it has adequately provided in its financial statements for additional taxes that it estimates may be assessed by the various taxing authorities. While the Company believes that it has adequately provided for all uncertain tax positions, amounts asserted by tax authorities could be greater or less than the Company’s accrued position. These tax liabilities, including the interest and penalties, are adjusted pursuant to a settlement with tax authorities, completion of audit, refinement of estimates or expiration of various statutes of limitation. Foreign Currency The functional currency of the Company’s foreign subsidiaries is generally their respective local currency. The financial statements of the Company’s international operations are translated into U.S. dollars using the exchange rate at each balance sheet date for assets and liabilities, the historical exchange rate for stockholders’ equity, and a weighted average exchange rate for each period for revenue, expenses, gains and losses. Foreign currency translation adjustments are recorded as a separate component of stockholders’ equity. Gains and losses from non-functional currency denominated transactions are recorded in other income (expense) in the Company’s condensed consolidated statements of operations. The following table summarizes the foreign exchange loss that the Company recorded (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Foreign exchange loss $ 279 $ 1,432 $ 930 $ 6,421 Derivative Financial Instruments As a result of the Company’s international operations, it is exposed to various market risks that may affect its consolidated results of operations, cash flows and financial position. These market risks include, but are not limited to, fluctuations in currency exchange rates. The Company’s primary foreign currency exposures are in Euros, British Pounds, Brazilian Real, Australian Dollars, Singapore Dollars and New Zealand Dollars. As a result, the Company faces exposure to adverse movements in currency exchange rates as the financial results of its operations are translated from local currency into U.S. dollars. Additionally, foreign exchange rate fluctuations on transactions denominated in currencies other than the functional currency result in gains and losses that are reflected in other income (expense) in the Company’s co

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	3. Goodwill and Other Intangible Assets Goodwill Changes in the Company’s goodwill balance are summarized in the table below (in thousands): Balance at December 31, 2013 $ 507,611 Acquired in business combinations 11,647 Foreign currency translation adjustment (26,098 ) Post-acquisition goodwill adjustment for Stayz 511 Balance at December 31, 2014 493,671 Foreign currency translation adjustment (33,622 ) Balance at September 30, 2015 $ 460,049 The goodwill arising from the December 2013 acquisition of Stayz was increased by $511,000 to $178,288,000 in the year ended December 31, 2014 due to certain income taxes and changes in fair value estimates derived from additional information gained during the measurement period. Goodwill adjustments were not significant to the Company’s previously reported operating results or financial position. Therefore, the Company elected not to retrospectively adjust the acquisition date accounting and instead recorded the adjustment in the year ended December 31, 2014. Intangible Assets The Company’s intangible assets, excluding goodwill, primarily consist of assets acquired in business combinations and are recorded at estimated fair value on the date of acquisition. The Company’s finite-lived intangible assets are summarized in the table below (in thousands): September 30, 2015 December 31, 2014 Useful Life Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Trade names and trademarks 10 $ 28,525 $ (9,572 ) $ 18,953 $ 30,316 $ (8,396 ) $ 21,920 Developed technology 2-8 20,290 (14,748 ) 5,542 21,293 (13,231 ) 8,062 Customer relationships 6-14 53,436 (27,650 ) 25,786 57,656 (25,512 ) 32,144 Noncompete agreements and domain names 2-5 1,949 (1,256 ) 693 2,224 (923 ) 1,301 Total $ 104,200 $ (53,226 ) $ 50,974 $ 111,489 $ (48,062 ) $ 63,427 Amortization of noncompete agreements is recorded over the term of the agreements. The following table summarizes amortization expense (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Amortization expense $ 2,819 $ 3,397 $ 8,713 $ 10,163 The Company has the following indefinite-lived intangible assets recorded in its consolidated balance sheet (in thousands): September 30, December 31, 2015 2014 Trade names $ 7,029 $ 7,029

Accrued Expenses

Accrued Expenses	9 Months Ended
	Sep. 30, 2015
Payables and Accruals [Abstract]
Accrued Expenses	4. Accrued Expenses The Company’s accrued expenses are comprised of the following (in thousands): September 30, December 31, 2015 2014 Compensation and related benefits $ 19,591 $ 21,413 Taxes 6,810 4,954 Marketing 5,131 4,115 Gift cards 4,103 5,654 Contracting, consulting and professional fees 3,111 3,254 Traveler guarantee 1,246 1,790 Foreign exchange-forward contracts 683 99 Other 9,771 8,976 Total $ 50,446 $ 50,255

Convertible Senior Notes

Convertible Senior Notes	9 Months Ended
	Sep. 30, 2015
Debt Disclosure [Abstract]
Convertible Senior Notes	5. Convertible Senior Notes Convertible Senior Notes Equity Carrying Value of Convertible Component Senior Notes as of Recorded September 30, December 31, (In thousands) Par Value at Issuance 2015 2014 0.125% Convertible Senior Notes due April 1, 2019 $ 402,500 $ 90,887 (1) $ 329,905 $ 316,181 (1) This amount represents the equity component recorded at the initial issuance of the 0.125% convertible senior notes. In March 2014, the Company issued at par value $402.5 million of 0.125% convertible senior notes (the “Notes”) due April 1, 2019, unless earlier purchased by the Company or converted. Interest is payable semi-annually, in arrears on April 1 and October 1 of each year, commencing October 1, 2014. The Notes are governed by an indenture between the Company, as issuer, and U.S. Bank National Association, as trustee. The Notes are unsecured and do not contain any financial covenants or any restrictions on the payment of dividends, the incurrence of senior debt or other indebtedness or the issuance or repurchase of securities by the Company. If converted, holders will receive cash and/or shares of the Company’s common stock, at the Company’s election. 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 amount of the Notes are considered in diluted earnings per share under the treasury stock method. Conversion Initial Free 0.125% Convertible Senior Notes 19.1703 $ 52.16 October 1, 2018 Throughout the term of the Notes, the conversion rate may be adjusted upon the occurrence of certain events as described in the indenture governing the Notes. Holders of the Notes will not receive any cash payment representing accrued and unpaid interest upon conversion of a Note. Accrued but unpaid interest will be deemed to be paid in full upon conversion rather than cancelled, extinguished or forfeited. Holders may convert their Notes under the following circumstances: • during any calendar quarter commencing after June 30, 2014, if, for at least 20 trading days during the 30 consecutive trading day period ending on the last trading day of the immediately preceding calendar quarter, the last reported sales price of the Company’s common stock for such trading day is greater than or equal to 130% of the applicable conversion price for the Notes on each applicable trading day; • during the five business day period after any five consecutive trading day period in which the trading price per $1,000 principal amount of the Notes is less than 98% of the product of the sale price of the Company’s common stock and the conversion rate; • upon the occurrence of specified corporate transactions described under the indenture governing the Notes, such as a consolidation, merger or binding share exchange; or • at any time on or after October 1, 2018. As of September 30, 2015, the Notes are not convertible. Holders of the Notes have the right to require the Company to purchase with cash all or a portion of the Notes upon the occurrence of a fundamental change, such as a change of control, at a purchase price equal to 100% of the principal amount of the Notes plus accrued and unpaid interest. Following certain corporate transactions that constitute a fundamental change, the Company will increase the conversion rate for a holder who elects to convert the Notes in connection with such make-whole fundamental change. In accounting for the issuance of the Notes, the Company separated the Notes into liability and equity components. The carrying amount of the liability component was calculated by measuring the fair value of a similar liability that does not have an associated conversion feature. The carrying amount of the equity component representing the conversion option was determined by deducting the fair value of the liability component from the par value of the Notes as a whole. The excess of the principal amount of the liability component over its carrying amount (“debt discount”) is amortized to interest expense over the term of the Notes. The equity component is not remeasured as long as it continues to meet the conditions for equity classification. In accounting for the transaction costs related to the Note issuance, the Company allocated the total amount incurred to the liability and equity components based on their relative values. Transaction costs attributable to the liability component are being amortized to expense over the term of the Notes, and transaction costs attributable to the equity component were netted with the equity component in stockholders’ equity. Additionally, the Company recorded a deferred tax liability of $0.8 million in connection with the Notes. The Notes consist of the following (in thousands): September 30, December 31, 2015 2014 Liability component: Principal: 0.125% Convertible Senior Notes $ 402,500 $ 402,500 Less: debt discount, net 0.125% Convertible Senior Notes (72,595 ) (86,319 ) Net carrying amount $ 329,905 $ 316,181 The Notes are included in the consolidated balance sheets within convertible senior notes, net, which is classified as a non-current liability. The debt discount is amortized over the life of the Notes using the effective interest rate method. The total estimated fair value of the Company’s Notes at September 30, 2015 was $293.3 million. The fair value of the Notes was determined based on inputs that are observable in the market (Level 2). Based on the closing price of the Company’s common stock of $26.54 on September 30, 2015, the if-converted value of the Notes was less than their principal amount. Note Hedges To minimize the impact of potential economic dilution upon conversion of the Notes, the Company entered into convertible note hedge transactions with respect to its common stock (the “Note Hedges”). Date Purchase Shares underlying Note Hedges March 2014 $ 85,853 7,716,049 The Note Hedges cover shares of the Company’s common stock at a strike price that corresponds to the initial conversion price of the respective Notes, also subject to adjustment, and are exercisable upon conversion of the Notes. The Note Hedges will expire upon the maturity of the Notes. The Note Hedges are intended to reduce the potential economic dilution upon conversion of the Notes in the event that the market value per share of the Company’s common stock, as measured under the Notes, at the time of exercise is greater than the conversion price of the Notes. The Note Hedges are separate transactions and are not part of the terms of the Notes. Holders of the Notes will not have any rights with respect to the Note Hedges. Warrants Date Proceeds Shares Strike Warrants March 2014 $ 38,278 7,716,049 $ 81.14 Separately, in March 2014, the Company also entered into warrant transactions (the “Warrants”), whereby the Company sold warrants to acquire, subject to anti-dilution adjustments, shares of the Company’s common stock at $81.14 per share. The Warrants have a term of five years from the date of issuance. If the average market value per share of the Company’s common stock for the reporting period, as measured under the Warrants, exceeds the strike price of the Warrants, the Warrants would have a dilutive effect on the Company’s earnings per share if the Company reports net income for the reporting period. The Warrants were anti-dilutive for the period ended September 30, 2015. The Warrants are separate transactions, entered into by the Company and are not part of the terms of the Notes or Note Hedges. Holders of the Notes will not have any rights with respect to the Warrants. Interest Expense The following table sets forth total interest expense recognized related to the Notes (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 0.125% coupon $ 126 $ 126 $ 378 $ 252 Amortization of debt issuance costs 14 13 40 26 Amortization of debt discount 4,641 4,378 13,724 8,694 Total $ 4,781 $ 4,517 $ 14,142 $ 8,972

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	6. Commitments and Contingencies Leases The Company leases its facilities and certain office equipment under noncancellable operating leases. The following table summarizes total rental expense (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Rental expense $ 1,733 $ 1,911 $ 5,754 $ 5,134 Guarantees The Company offers two guarantee products to travelers: Basic Rental Guarantee and Carefree Rental Guarantee. The Basic Rental Guarantee is offered to travelers that book a vacation rental property listed on any one of the Company’s websites to protect their vacation rental payments up to $1,000 against Internet fraud. Travelers can also purchase additional protection to cover their vacation rental payments up to $10,000 against Internet fraud, misrepresentation, wrongful denial of entry, wrongful deposit loss or losses from phishing claims by the purchase of the Carefree Rental Guarantee. The Company does not maintain insurance from any third party for claims under these guarantees, and any amounts payable for claims made under these guarantees are payable by the Company. Amounts recorded for estimated future claims under the guarantees are based on historical experience and expectations for future claims. Claim costs related to the Basic Rental Guarantee are recognized in general and administrative expenses in the consolidated statements of operations while claim costs related to the Carefree Rental Guarantee are recognized in cost of revenue. Expected future claims for traveler guarantees, which are presented as a current liability in the Company’s condensed consolidated balance sheets, and changes for the guarantees, are as follows (in thousands): Traveler guarantee liability at December 31, 2013 $ 956 Costs accrued for new and expected future claims 3,576 Guarantee obligations honored (2,742 ) Traveler guarantee liability at December 31, 2014 $ 1,790 Costs accrued for new and expected future claims 1,216 Guarantee obligations honored (1,760 ) Traveler guarantee liability at September 30, 2015 $ 1,246 The Company maintains a guarantee of £5,000,000 (approximately $7,595,000 as of September 30, 2015) to a bank in the United Kingdom for extending credit to the Company in connection with the wholly owned United Kingdom subsidiary’s business of collecting its subscription revenue in advance via credit card payments. Legal From time to time, the Company is involved in litigation relating to claims arising in the ordinary course of business. The Company assesses its potential liability by analyzing specific litigation and regulatory matters using available information. Views on estimated losses are developed by management in consultation with inside and outside counsel, which involves a subjective analysis of potential results and outcomes, assuming various combinations of appropriate litigation and settlement strategies. After taking all of the above factors into account, the Company determines whether an estimated loss from a contingency related to litigation should be accrued by assessing whether a loss is deemed probable and can be reasonably estimated. The Company further determines whether an estimated loss from a contingency related to litigation should be disclosed by assessing whether a material loss is deemed reasonably possible. Such disclosures will include an estimate of the additional loss or range of loss or will state that such an estimate cannot be made. Management believes that there are no claims or actions pending or threatened against the Company, the ultimate disposition of which would have a material impact on the Company’s consolidated financial position, results of operations or cash flows.

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	7. Stock-Based Compensation During the three and nine months ended September 30, 2015, the Company issued an aggregate of 502,383 and 1,686,767 restricted stock units, respectively, under its 2011 Equity Incentive Plan (the “2011 Plan”), for an aggregate fair value of $14,261,000 and $49,261,000, respectively. Additionally, during the three and nine months ended September 30, 2015, the Company issued an aggregate of 83,644 and 947,986 options, respectively, to purchase common stock under the 2011 Plan for an aggregate fair value of $958,000 and $9,995,000, respectively. The following table summarizes the total stock-based compensation expense (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Cost of revenue $ 881 $ 847 $ 2,615 $ 2,415 Product development 3,931 3,485 10,769 9,589 Sales and marketing 3,152 2,763 9,003 7,868 General and administrative 4,654 5,576 15,100 15,710 Total $ 12,618 $ 12,671 $ 37,487 $ 35,582

Redeemable Noncontrolling Inter

Redeemable Noncontrolling Interests	9 Months Ended
	Sep. 30, 2015
Noncontrolling Interest [Abstract]
Redeemable Noncontrolling Interests	8. Redeemable Noncontrolling Interests During the year ended December 31, 2013, the Company acquired 68.5% of the outstanding stock of Travelmob Pte. Ltd. (“travelmob”) and 55% of the outstanding stock of Bookabach Limited. During the year ended December 31, 2014, the Company acquired an additional 20% of the outstanding equity of Bookabach Limited, increasing its ownership to 75%. The redeemable noncontrolling interests are reported on the condensed consolidated balance sheets as redeemable noncontrolling interests. The Company recognizes changes to the redemption value of noncontrolling interests as they occur by adjusting the carrying value to estimated redemption value at the end of each reporting period. Changes in the Company’s redeemable noncontrolling interests are summarized in the table below (in thousands): Balance at December 31, 2013 $ 10,584 Net loss attributable to noncontrolling interests (1,839 ) Changes to redemption value of noncontrolling interests 2,421 Repurchase of redeemable noncontrolling interests (1,461 ) Currency translation adjustments 37 Balance at December 31, 2014 $ 9,742 Net loss attributable to noncontrolling interests (1,623 ) Changes to redemption value of noncontrolling interests 914 Balance at September 30, 2015 $ 9,033 In October 2015, the Company acquired the remaining outstanding equity interest of travelmob (see Note 12).

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Accumulated Other Comprehensive Loss	9. Accumulated Other Comprehensive Loss Accumulated other comprehensive loss consists of the following (in thousands): September 30, December 31, 2015 2014 Foreign currency translation adjustments $ (56,276 ) $ (27,252 ) Unrealized losses on short-term investments (183 ) (801 ) Defined benefit pension plan adjustments (4,149 ) — Total $ (60,608 ) $ (28,053 )

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Income Taxes	10. Income Taxes The following table summarizes the total income tax expense that the Company recorded, and the related effective tax rate, for the three and nine months ended September 30, 2015 and 2014 (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Income tax expense $ 5,625 $ 845 $ 9,757 $ 5,909 Effective tax rate 36.3 % 13.9 % 65.1 % 31.5 % At September 30, 2015, the Company’s effective tax rate estimate for the year ending December 31, 2015 differed from the statutory rate primarily due to losses in certain foreign jurisdictions for which a benefit cannot be recorded at this time, non-deductible stock compensation charges and state taxes, which is offset by the effect of different statutory tax rates in foreign jurisdictions and certain items recorded discretely in the nine months ended September 30, 2015. Those discrete items include a tax benefit due to disqualifying dispositions of incentive stock options, a tax benefit due to an income tax reserve release, a tax benefit for adjustments to the recognized value of the Company’s federal and Texas research and experimentation tax credit carryforwards and a tax benefit of $0.4 million related to a correction of an immaterial prior period transfer pricing error, offset by tax expense related to the amortization of tax charges on the intercompany sale of assets that were deferred in prior periods. The effective tax rate for the three months ended September 30, 2015 is lower than the effective tax rate estimated for the full year ending December 31, 2015 due to higher income before income taxes in the three months as well as the mix of earnings between income and loss jurisdictions. On July 27, 2015, in Altera Corp. v. Commissioner, the U.S. Tax Court issued a taxpayer-favorable opinion related to the treatment of stock-based compensation expense in an intercompany cost-sharing arrangement. A final decision has yet to be issued by the Tax Court due to other outstanding issues related to the case, and the decision is subject to appeal by the Internal Revenue Service. At this time, the U.S. Department of the Treasury has not withdrawn the requirement to include stock-based compensation from its regulations. The Company has reviewed this case and its impact and has concluded that no adjustment to the consolidated financial statements is appropriate at this time. The Company will continue to monitor ongoing developments and potential impacts to the condensed consolidated financial statements. At September 30, 2014, the Company’s effective tax rate estimate differed from the statutory rate primarily due to non-deductible stock compensation charges and state taxes, which was partially offset by the effect of different statutory tax rates in foreign jurisdictions and certain items recorded discretely in the nine months ended September 30, 2014. Those discrete items include a tax benefit due to disqualifying dispositions of incentive stock options, a tax benefit for a state tax apportionment change related to a prior period, a tax benefit for adjustments to the recognized value of our federal and Texas research and experimentation tax credit carryforwards, and a tax benefit resulting from the filing of certain 2013 tax returns, offset by tax expense related to the amortization of tax charges on the intercompany sale of assets that were deferred in prior periods. In addition, the merger of our wholly owned subsidiaries in Spain in the three months ended September 30, 2014 resulted in tax basis intangibles which will be deductible in future periods, with a tax benefit of $2.5 million recorded discretely.

Net Income Per Share Attributab

Net Income Per Share Attributable to HomeAway, Inc.	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Net Income Per Share Attributable to HomeAway, Inc.	11. Net Income Per Share Attributable to HomeAway, Inc. The following table sets forth the computation of basic and diluted net income per share of common stock (in thousands, except per share amounts): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Numerator Net income attributable to HomeAway, Inc. $ 10,417 $ 4,912 $ 5,942 $ 13,222 Denominator Weighted average common shares outstanding - basic 95,716 94,106 95,162 93,507 Dilutive effect of stock options, warrants and restricted stock units 1,972 2,283 2,227 2,851 Weighted average common shares outstanding - diluted 97,688 96,389 97,389 96,358 Net income per share attributable to HomeAway, Inc.: Basic $ 0.11 $ 0.05 $ 0.06 $ 0.14 Diluted $ 0.11 $ 0.05 $ 0.06 $ 0.14 The following common equivalent shares were excluded from the calculation of diluted net loss per share attributable to HomeAway, Inc. as their inclusion would have been anti-dilutive (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Stock options 3,295 2,604 3,089 2,038 Restricted stock units 547 62 21 49 Warrants 7,716 7,716 7,716 7,716 Total common equivalent shares excluded 11,558 10,382 10,826 9,803

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2015
Subsequent Events [Abstract]
Subsequent Events	12. Subsequent Events (i) On October 1, 2015, the Company acquired Dwellable, Inc., a United States company that is the creator of an online vacation rental search engine and mobile application that provides unique, interactive ways for travelers to find and book vacation rentals, for cash consideration of $18.0 million. (ii) In the fourth quarter of 2013, the Company acquired a controlling interest in travelmob. Under the terms of the acquisition agreement, the Company had a call option to purchase the remaining non-controlling interest of travelmob for the period defined in the agreement beginning on December 31, 2016. In the event the Company did not exercise its call option to purchase the remaining shares of travelmob by such deadline, the remaining travelmob stockholders had a put option to require the Company to repurchase their remaining interest for the period defined in the agreement beginning on February 1, 2017. The call and put were accounted for as embedded features of the non-controlling interest. In October 2015, the Company and the non-controlling interest holders agreed to terminate the call and put options and the Company acquired the remaining outstanding equity interest of travelmob. In connection with the mutual termination of the options, in the fourth quarter of 2015, the Company will recognize an operating expense charge of approximately $3.9 million representing the amount paid for the acquisition of the non-controlling interest in excess of the fair value of the non-controlling interest prior to the termination of the options. (iii) On November 4, 2015, the Company, Expedia, Inc., a Delaware corporation (“Expedia”), and HMS 1, Inc., a Delaware corporation and a direct wholly owned subsidiary of Expedia (“Purchaser”)entered into an Agreement and Plan of Reorganization (the “Merger Agreement”). Pursuant to the Merger Agreement, Purchaser commenced a tender offer to acquire all of the outstanding shares of Company common stock for an equity value of approximately $3.9 billion in cash and Expedia common stock, representing a per share price for HomeAway shares of $38.31, based on Expedia’s closing price on November 3, 2015. Under the terms of the transaction, Expedia will offer to acquire each outstanding share of common stock of HomeAway in exchange for $10.15 in cash and 0.2065 of a share of Expedia common stock. Under the terms of the transaction, Expedia will acquire each outstanding share of common stock of HomeAway through a tender offer, followed by a second-step merger. The Board of Directors of the Company unanimously approved the Merger Agreement and the consummation of the transactions contemplated thereby, including the tender offer and the Mergers. Consummation of the transactions is subject to the satisfaction or, if permissible, waiver of customary closing conditions, including there having been validly tendered and not validly withdrawn prior to the expiration of the tender offer a majority of all then outstanding shares of Company common stock, the absence of certain legal impediments and the expiration or termination of the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended. The Merger Agreement contains certain termination rights, including the right of the Company to terminate the Merger Agreement to accept a superior proposal (subject to compliance with certain notice and other requirements). The Merger Agreement provides that, in connection with termination of the Merger Agreement by the Company or Expedia upon specified conditions, the Company will be required to pay to Expedia a termination fee of $138 million. In addition, subject to certain exceptions and limitations, the Company or Expedia may terminate the Merger Agreement if the Merger is not consummated by May 4, 2016 (or as such date may be extended pursuant to the terms of the Merger Agreement).

Summary of Significant Accoun20

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2015
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements include the accounts of HomeAway, Inc. and its wholly and majority-owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States, or GAAP, for interim financial reporting and applicable quarterly reporting regulations of the Securities and Exchange Commission, (the “SEC”). All significant intercompany transactions and balances have been eliminated in consolidation. In the opinion of the Company’s management, the accompanying interim unaudited condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements and include all adjustments, consisting of normal recurring adjustments and those items discussed in these notes, necessary for a fair statement of the Company’s financial position, as of September 30, 2015 and December 31, 2014, results of operations for the three and nine months ended September 30, 2015 and September 30, 2014, comprehensive income (loss) for the three and nine months ended September 30, 2015 and September 30, 2014, cash flows for the nine months ended September 30, 2015 and September 30, 2014, and changes in stockholders’ equity for the nine months ended September 30, 2015. Certain information and disclosures normally included in the notes to the annual financial statements prepared in accordance with GAAP have been omitted from these interim condensed consolidated financial statements pursuant to the rules and regulations of the SEC. Accordingly, these unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014. Operating results for this interim period are not necessarily indicative of the results that may be expected for the year ending December 31, 2015, or for any other period.
Business Segment	Business Segment The Company has one operating segment consisting of various products and services related to its online marketplace of accommodation rental listings. The Company’s chief operating decision maker is the Chief Executive Officer. The chief operating decision maker allocates resources and assesses performance of the business and other activities at the single operating segment level.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements; and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates. These differences could have a material effect on the Company’s future results of operations and financial position. Significant items subject to estimates and assumptions include certain revenues, traveler guarantees, the allowance for doubtful accounts, marketable and non-marketable investments, goodwill and other indefinite-lived intangible assets, definite-lived intangible assets, depreciation and amortization, stock-based compensation, deferred income taxes and noncontrolling interests.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair value is defined as the price received from the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. To increase the comparability of fair value measures, the following hierarchy prioritizes the inputs to valuation methodologies used to measure fair value: Level 1: Valuations based on quoted prices for identical assets and liabilities in active markets. Level 2: Valuations based on observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data. Level 3: Valuations based on unobservable inputs reflecting the Company’s assumptions, consistent with reasonably available assumptions made by other market participants. These valuations require significant judgment. The Company’s financial instruments classified as Level 1 are valued using quoted prices generated by market transactions involving identical assets. Instruments classified as Level 2 are valued using non-binding market consensus prices corroborated with observable market data; quoted market prices for similar instruments in active markets; or pricing models, such as a discounted cash flow model, with significant inputs derived from or corroborated with observable market data. The Company did not hold financial instruments categorized as Level 3 in any period presented. Short-term investments are classified as available-for-sale and reported at fair value using the specific identification method. Unrealized gains and losses are excluded from earnings and reported as a component of other comprehensive income (loss), net of tax. Additionally, the Company periodically assesses whether an other than temporary impairment loss on investments has occurred due to declines in fair value or other market conditions. Declines in fair value considered other-than-temporary are recorded as an impairment in the condensed consolidated statement of operations. The Company did not record impairments of its investments during any of the periods presented. The carrying amounts of certain of the Company’s financial instruments, including cash and cash equivalents, accounts receivable, prepaid expenses and other current assets, accounts payable, accrued liabilities and deferred revenue approximate fair value because of the relatively short maturity of these instruments. The following table summarizes the basis used to measure certain financial assets at fair value on a recurring basis in the Company’s condensed consolidated balance sheet at September 30, 2015 (in thousands): Balance as of Quoted Prices in Significant Significant Assets: Cash equivalents Money market funds $ 151,691 $ 151,691 $ — $ — Total cash equivalents 151,691 151,691 — — Restricted cash Time deposits 1,983 — 1,983 — Total restricted cash 1,983 — 1,983 — Short-term investments U.S. government agency bonds 23,339 — 23,339 — Time deposits 39,529 — 39,529 — Corporate bonds 346,782 — 346,782 — International government bonds 21,390 — 21,390 — Municipal bonds 187,303 — 187,303 — Total short-term investments 618,343 — 618,343 — Total financial assets $ 772,017 $ 151,691 $ 620,326 $ — The following table summarizes the basis used to measure certain financial assets at fair value on a recurring basis in the Company’s condensed consolidated balance sheet at December 31, 2014 (in thousands): Balance as of Quoted Prices in Significant Significant Assets: Cash equivalents Money market funds $ 183,008 $ 183,008 $ — $ — Municipal bonds 1,001 — 1,001 — Total cash equivalents 184,009 183,008 1,001 — Restricted cash — Time deposits 2,058 — 2,058 — Total restricted cash 2,058 — 2,058 — Short-term investments Time deposits 21,726 — 21,726 — Corporate bonds 353,212 — 353,212 — International government bonds 1,501 — 1,501 — Municipal bonds 140,406 — 140,406 — Commercial paper 3,999 — 3,999 — Total short-term investments 520,844 — 520,844 — Total financial assets $ 706,911 $ 183,008 $ 523,903 $ —
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents include investments in demand deposits, money market funds, and municipal bonds readily convertible into cash. Cash and cash equivalents are stated at cost, which approximates fair value. The Company considers all highly liquid investments purchased with an original maturity date of three months or less to be cash equivalents. Cash and cash equivalents consisted of the following (in thousands): September 30, December 31, Demand deposit accounts $ 149,602 $ 108,316 Money market funds 151,691 183,008 Municipal bonds — 1,001 Total cash and cash equivalents $ 301,293 $ 292,325
Restricted Cash	Restricted Cash Restricted cash of $2,200,000 and $2,492,000 at September 30, 2015 and December 31, 2014, respectively, was held in accounts owned by the Company to secure property licenses, leased office space, credit card availability and reimbursable direct debits due from the Company. Restricted cash is recorded as “Other non-current assets” on the Company’s condensed consolidated balance sheets.
Short-term Investments	Short-term Investments Short-term investments generally consist of marketable securities with original maturities greater than ninety days as of the date of purchase. Investments in which the Company has the ability and intent, if necessary, to liquidate in order to support its current operations, including those with contractual maturities greater than one year from the date of purchase, are classified as short-term. The Company’s investment securities are classified as available-for-sale and presented at estimated fair value with any unrealized gains and losses included in other comprehensive income (loss). Cash flows from purchases, sales and maturities of available-for-sale securities are classified as investing activities and reported gross, including any related premiums or discounts. Premiums related to purchases of available-for-sale securities were $9,240,000 and $11,239,000 during the nine months ended September 30, 2015 and 2014, respectively. Short-term investments consisted of the following (in thousands): September 30, 2015 Gross Cost Gross Gross Estimated U.S government agency bonds $ 23,375 $ 3 $ (39 ) $ 23,339 Time deposits 39,529 — — 39,529 Corporate bonds 346,949 141 (308 ) 346,782 International government bonds 21,418 — (28 ) 21,390 Municipal bonds 187,254 83 (34 ) 187,303 Total short-term investments $ 618,525 $ 227 $ (409 ) $ 618,343 December 31, 2014 Gross Cost Gross Gross Estimated Time deposits $ 21,726 $ — $ — $ 21,726 Corporate bonds 353,957 7 (752 ) 353,212 International government bonds 1,504 — (3 ) 1,501 Municipal bonds 140,455 45 (94 ) 140,406 Commercial paper 3,999 — — 3,999 Total short-term investments $ 521,641 $ 52 $ (849 ) $ 520,844 For fixed income securities with unrealized losses as of September 30, 2015, the Company does not intend to sell any of these investments; and the Company expects it will not be required to sell any of these investments before recovery of the entire amortized cost basis. The Company has evaluated these fixed income securities and determined that no credit losses exist. Accordingly, the Company has determined that the unrealized losses on fixed income securities as of September 30, 2015 were temporary in nature. The following table summarizes the contractual underlying maturities of the Company’s short-term investments (in thousands): September 30, 2015 Less than 1 Year 1 to 3 Years Total U.S government agency bonds $ 597 $ 22,742 $ 23,339 Time deposits 25,951 13,578 39,529 Corporate bonds 203,039 143,743 346,782 International government bonds 15,192 6,198 21,390 Municipal bonds 131,167 56,136 187,303 Total short-term investments $ 375,946 $ 242,397 $ 618,343 December 31, 2014 Less than 1 Year 1 to 3 Years Total Time deposits $ 21,479 $ 247 $ 21,726 Corporate bonds 240,570 112,642 353,212 International government bonds 1,501 — 1,501 Municipal bonds 87,615 52,791 140,406 Commercial paper 3,999 — 3,999 Total short-term investments $ 355,164 $ 165,680 $ 520,844
Accounts Receivable	Accounts Receivable Accounts receivable are generated from credit card merchants who process the Company’s property listing sales, property listings sold on installments to the Company’s customers, partners who advertise the Company’s inventory on their websites and/or sell ancillary products to the Company’s customers and Internet display advertising. Accounts receivable outstanding beyond the contractual payment terms are considered past due. The Company determines its allowance for doubtful accounts by estimating losses on receivables based on known troubled accounts and historical experiences of losses incurred.
Property and Equipment	Property and Equipment Property and equipment are recorded at cost less accumulated depreciation. Depreciation is computed using the straight-line method over the estimated useful lives of the related assets. Computer equipment and purchased software are generally depreciated over three years. Furniture and fixtures are generally depreciated over five to ten years. Leasehold improvements are depreciated over the shorter of the contractual lease period or estimated useful life. Upon disposal, property and equipment and the related accumulated depreciation are removed and the resulting gain or loss is reflected in the condensed consolidated statements of operations. Ordinary maintenance and repairs are charged to expense, while expenditures that extend the physical or economic life of the assets are capitalized. The Company capitalizes certain internally developed software and website development costs. These capitalized costs were approximately $38,759,000 and $36,038,000 at September 30, 2015 and December 31, 2014, respectively, and are included in property and equipment, net, in the condensed consolidated balance sheets. Internally developed software costs are generally depreciated over five years. The Company recorded depreciation expense on internally developed software and website development costs as follows (in thousands): Three Months Ended Nine Months Ended 2015 2014 2015 2014 Depreciation expense on internally developed software and website development costs $ 1,677 $ 1,343 $ 4,867 $ 3,947
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill arises from business combinations and is measured as the excess of the purchase consideration over the sum of the acquisition-date fair values of tangible and identifiable intangible assets acquired, less any liabilities assumed. The Company uses estimates and assumptions to value assets acquired and liabilities assumed at the acquisition date, and these estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, adjustments to the assets acquired and liabilities assumed are recorded with the corresponding offset to goodwill. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to the condensed consolidated statements of operations. Goodwill and intangible assets deemed to have indefinite useful lives, such as certain trade names, are not amortized. Tests for impairment of goodwill and indefinite-lived intangible assets are performed on an annual basis or when events or circumstances indicate that the carrying amount may not be recoverable. Circumstances that could trigger an impairment test outside of the annual test include but are not limited to: a significant adverse change in the business climate or legal factors, adverse cash flow trends, an adverse action or assessment by a regulator, unanticipated competition, loss of key personnel, decline in stock price and the results of tests for recoverability of a significant asset group. The Company has determined that no triggering event occurred during any of the periods presented. For goodwill and indefinite-lived intangible assets, the Company completes a “Step 0” analysis, which involves evaluating qualitative factors, including macroeconomic conditions, industry and market considerations, cost factors and overall financial performance related to its goodwill and its indefinite-lived intangible assets. If the Company’s “Step 0” analysis indicates that it is more likely than not that the fair value of a reporting unit or of an indefinite-lived intangible asset is less than its carrying amount, then the Company would perform a quantitative two-step impairment test. The quantitative analysis compares the fair value of the Company’s reporting unit or indefinite-lived intangible assets to its carrying amount, and an impairment loss is recognized equivalent to the excess of the carrying amount over fair value. If, after assessing the totality of events or circumstances, the Company determines that it is more likely than not that the fair value of a reporting unit or indefinite-lived intangible asset exceeds its carrying amount, then the quantitative impairment tests are unnecessary. The Company performs an evaluation of goodwill and indefinite-lived intangible assets for impairment annually in the fourth quarter of its fiscal year. The determination of whether or not goodwill or indefinite-lived intangible assets have become impaired involves a significant level of judgment. Changes in the Company’s strategy and/or market conditions could significantly impact these judgments and require adjustments to recorded amounts of goodwill or indefinite-lived intangible assets. No impairment of goodwill or indefinite-lived intangible assets was identified in any of the periods presented. Identifiable intangible assets consist of trade names, customer relationships, developed technology, domain names and contractual non-competition agreements associated with acquired businesses. Intangible assets with finite lives are amortized over their estimated useful lives on a straight-line basis and reviewed for impairment whenever events or changes in circumstances indicate that an asset’s carrying value may not be recoverable (see Note 3). The straight-line method of amortization represents the Company’s best estimate of the distribution of the economic value of the identifiable intangible assets.
Impairment of Long-lived Assets	Impairment of Long-lived Assets The Company evaluates long-lived assets held for use, such as property and equipment, for impairment whenever events or changes in circumstances indicate the carrying value of an asset may not be recoverable. An impairment loss is recognized when estimated future undiscounted cash flows expected from the use of the asset plus net proceeds expected from disposition of the asset, if any, are less than the carrying value of the asset. When an impairment loss is recognized, the carrying amount of the asset is reduced to its estimated fair value in the period in which the determination is made. No material impairments of long-lived assets have been recorded during any of the periods presented.
Leases	Leases The Company leases facilities in several countries around the world and certain equipment under non-cancelable lease agreements. The terms of certain lease agreements provide for rental payments on a graduated basis. Rent expense is recognized on a straight-line basis over the lease period and accrued as rent expense incurred but not paid.
Revenue Recognition	Revenue Recognition The Company recognizes revenue when persuasive evidence of an agreement exists, delivery has occurred, the sales price is fixed or determinable and collectability is reasonably assured. The Company accounts for sales incentives to customers as a reduction of revenue at the time revenue is recognized from the related product sale. The Company also reports revenue net of any sales taxes collected. The Company generates a significant portion of its revenue from customers purchasing online advertising services related to the listing of their properties for rent, primarily on a subscription basis over a fixed-term. The Company also generates revenue based on the number of traveler inquiries and reservation bookings for property listings on the Company’s websites, local and national Internet display advertisers, license of property management software and ancillary products and services. Payments for term-based subscriptions received in advance of services rendered are recorded as deferred revenue and recognized on a straight-line basis over the listing period. Revenue for inquiry-based contracts are determined on a fixed fee-per-inquiry basis as stated in the arrangement and recognized when the service has been performed. The Company earns commission revenue for reservations made online through its websites, which is calculated as a percentage of the value of the reservation. This revenue is earned as the services are performed or as the customers’ refund privileges lapse and is included in listing revenue in the condensed consolidated statements of operations. Internet display advertising revenue is generated primarily from advertisements appearing on the Company’s websites. Depending upon the terms, revenue is earned each time an impression is delivered, a user clicks on an ad, a graphic ad is displayed, or a user clicks-through the ad and takes a specified action on the destination site. The Company sells gift cards with no expiration date to travelers and does not charge administrative fees on unused cards. There is a portion of the gift card obligation that, based on historical redemption patterns, will not be used by the Company’s customers and is not required to be remitted to relevant jurisdictions (“breakage”). At the point of sale, the Company recognizes estimated breakage as deferred revenue and amortizes it over 48 months based on historical redemption patterns. The Company also records commission revenue for each gift card sale over the same 48-month redemption period. Through its professional software for bed and breakfasts and professional property managers, the Company also makes selected, online bookable properties available to online travel agencies and channel partners. The Company receives a percentage of the transaction value or a fee from the property manager for making this inventory available, which is recognized when earned. This revenue is included in other revenue in the condensed consolidated statements of operations. The Company generates revenue from the sale of hosted software solutions where revenue is recognized on a straight-line basis over the contract term, generally one year. Certain implementation services are essential to the customer’s use of the Company’s hosted software solutions. Accordingly, the Company recognizes implementation revenue ratably over the estimated period of the hosting relationship, which is three years. Recognition starts once the product has been made available to the customer. Training and consulting revenue is recognized upon delivery of the training or consulting services to the end customer.
Stock-Based Compensation	Stock-Based Compensation Stock-based compensation for option awards is recognized based upon the estimated grant date fair value of the awards measured using the Black–Scholes valuation model. The fair value of restricted stock awards is determined based on the number of shares granted and the fair value of the Company’s common stock on the grant date. Fair value is generally recognized as an expense on a straight-line basis, net of estimated forfeitures, over the requisite service period. When estimating forfeitures, the Company considers voluntary termination behaviors as well as trends of actual option forfeitures. The Company uses the “with and without” approach in determining the order in which tax attributes are utilized. As a result, the Company only recognizes a tax benefit from stock-based awards in additional paid-in capital if an incremental tax benefit is realized after all other tax attributes currently available to the Company have been utilized. When tax deductions from stock-based awards are less than the cumulative book compensation expense, the tax effect of the resulting difference is charged first to additional paid-in capital to the extent of the Company’s pool of windfall tax benefits with any remainder recognized in income tax expense. The Company has determined that it has a sufficient windfall pool available and therefore no amounts have been recognized as income tax expense. In addition, the Company accounts for the indirect effects of stock-based awards on other tax attributes through the condensed consolidated statements of operations. The gross benefits of tax deductions in excess of recognized compensation costs are reported as financing cash inflows, but only when such excess tax benefits are realized by a reduction to current taxes payable. The following table summarizes the excess tax benefit that the Company recorded (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Excess tax benefit from stock-based compensation, net $ 5,200 $ 1,362 $ 7,494 $ 2,583 This tax benefit has been recorded as additional paid-in capital on the Company’s condensed consolidated balance sheets.
Defined Benefit Pension Plan	Defined Benefit Pension Plan During the nine months ended September 30, 2015, the Company recorded an adjustment to correct a prior period accounting error related to the Company’s defined benefit pension plan for one of its foreign subsidiaries. The adjustment increased the Company’s liabilities by approximately $4,200,000 and decreased other comprehensive income by approximately $4,000,000 and income before income taxes by approximately $200,000 as of and during the nine months ended September 30, 2015. The Company does not believe these adjustments are material to the consolidated financial statements for the three and nine months ended September 30, 2015, the expected annual results for 2015 or to the consolidated financial statements of any prior period.
Income Taxes	Income Taxes The Company recognizes income taxes using an asset and liability approach. This approach requires the recognition of deferred tax liabilities and assets for the future tax consequences of events that have been recognized in the Company’s consolidated financial statements or tax returns. The measurement of deferred taxes is based on provisions of the enacted tax law and the effects of future changes in tax laws or rates are not anticipated. A valuation allowance is recognized if, based on the weight of available evidence, it is more likely than not that some portion or all of the deferred tax asset will not be realized. Evaluating the need for an amount of a valuation allowance for deferred tax assets requires significant judgment and analysis of the positive and negative evidence available, including past operating results, estimates of future taxable income, reversals of existing taxable temporary differences and the feasibility of tax planning in order to determine whether all or some portion of the deferred tax assets will not be realized. Based on the available evidence and judgment, the Company has determined that it is more likely than not that certain loss carryforwards will not be realized; therefore, the Company has established a valuation allowance for such deferred tax assets to reduce the loss carryforward assets to amounts expected to be utilized. The Company may be subject to income tax audits by the respective tax authorities in any or all of the jurisdictions in which the Company operates. The Company is currently undergoing audits in the United States as well as at its subsidiary in the United Kingdom. Significant judgment is required in determining uncertain tax positions. The Company recognizes the benefit of uncertain income tax positions only if these positions are more likely than not to be sustained. Also, the recognized income tax benefit is measured at the largest amount that is more than 50% likely of being realized. The Company adjusts these reserves in light of changing facts and circumstances, such as the closing of an audit or the refinement of an estimate. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Company records interest and penalties related to unrecognized tax benefits as a component of income tax expense. The countries in which the Company may be subject to potential examination by tax authorities include Australia, Brazil, Colombia, France, Germany, Italy, the Netherlands, New Zealand, Singapore, Spain, Switzerland, Thailand, the United Kingdom and the United States. The calculation of the Company’s tax liabilities involves the inherent uncertainty associated with the application of complex tax laws. As a multinational corporation, the Company conducts its business in many countries and is subject to taxation in many jurisdictions. The taxation of the Company’s business is subject to the application of various and sometimes conflicting tax laws and regulations as well as multinational tax conventions. The Company’s effective tax rate is highly dependent upon the geographic distribution of its worldwide earnings or losses, the tax regulations and tax rates in each geographic region, the availability of tax credits and carryforwards, and the effectiveness of its tax planning strategies. The application of tax laws and regulations is subject to legal and factual interpretation, judgment and uncertainty. Tax laws themselves are subject to change as a result of changes in fiscal policy, changes in legislation, and the evolution of regulations and court rulings. Consequently, taxing authorities may impose tax assessments or judgments against the Company that could materially impact its tax liability and/or its effective income tax rate. The Company believes it has adequately provided in its financial statements for additional taxes that it estimates may be assessed by the various taxing authorities. While the Company believes that it has adequately provided for all uncertain tax positions, amounts asserted by tax authorities could be greater or less than the Company’s accrued position. These tax liabilities, including the interest and penalties, are adjusted pursuant to a settlement with tax authorities, completion of audit, refinement of estimates or expiration of various statutes of limitation.
Foreign Currency	Foreign Currency The functional currency of the Company’s foreign subsidiaries is generally their respective local currency. The financial statements of the Company’s international operations are translated into U.S. dollars using the exchange rate at each balance sheet date for assets and liabilities, the historical exchange rate for stockholders’ equity, and a weighted average exchange rate for each period for revenue, expenses, gains and losses. Foreign currency translation adjustments are recorded as a separate component of stockholders’ equity. Gains and losses from non-functional currency denominated transactions are recorded in other income (expense) in the Company’s condensed consolidated statements of operations. The following table summarizes the foreign exchange loss that the Company recorded (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Foreign exchange loss $ 279 $ 1,432 $ 930 $ 6,421
Derivative Financial Instruments	Derivative Financial Instruments As a result of the Company’s international operations, it is exposed to various market risks that may affect its consolidated results of operations, cash flows and financial position. These market risks include, but are not limited to, fluctuations in currency exchange rates. The Company’s primary foreign currency exposures are in Euros, British Pounds, Brazilian Real, Australian Dollars, Singapore Dollars and New Zealand Dollars. As a result, the Company faces exposure to adverse movements in currency exchange rates as the financial results of its operations are translated from local currency into U.S. dollars. Additionally, foreign exchange rate fluctuations on transactions denominated in currencies other than the functional currency result in gains and losses that are reflected in other income (expense) in the Company’s condensed consolidated statements of operations. The Company may enter into derivative instruments to hedge certain net exposures of nonfunctional currency denominated assets and liabilities, primarily related to intercompany loans, even though it does not elect to apply hedge accounting or hedge accounting does not apply. Gains and losses resulting from a change in fair value for these derivatives are reflected in the period in which the change occurs and are recognized on the condensed consolidated statement of operations in other income (expense). Cash flows from these contracts are classified within cash flows from investing activities on the condensed consolidated statements of cash flows. The Company does not use financial instruments for trading or speculative purposes. The Company recognizes all derivative instruments on the balance sheet at fair value and its derivative instruments are generally short-term in duration. The Company is exposed to the risk that counterparties to derivative contracts may fail to meet their contractual obligations. The following table shows the fair value and notional amounts of the Company’s outstanding or unsettled derivative instruments that are not designated as hedging instruments covering foreign currency exposures as of September 30, 2015 which settled October 2, 2015 (in thousands): September 30, 2015 Significant Other Observable Inputs (Level 2) Gross Amount of Gross Amounts Net Amount U.S. Dollar Prepaid expense and other current assets $ 1,173 $ — $ 1,173 $ 41,301 Accrued expenses (656 ) — (656 ) 129,303 Total $ 517 $ — $ 517 $ 170,604 In addition to the notional amounts listed above, the Company entered into new derivative contracts with notional amounts of $157,735,000 on September 30, 2015 with a closing date of January 5, 2016. The following table shows the fair value and notional amounts of the Company’s outstanding or unsettled derivative instruments that are not designated as hedging instruments covering foreign currency exposures as of December 31, 2014 which settled January 2, 2015 (in thousands): December 31, 2014 Significant Other Gross Amount of Gross Amounts Net Amount U.S. Dollar Prepaid expense and other current assets $ 4,506 $ — $ 4,506 $ 157,164 Accrued expenses (67 ) — (67 ) 11,562 Total $ 4,439 $ — $ 4,439 $ 168,726
Net Income Per Share	Net Income Per Share Attributable to HomeAway, Inc. Basic net income per share is computed by dividing net income attributable to HomeAway, Inc. by the weighted average number of common shares outstanding during the period. Diluted income per share is computed by dividing net income attributable to HomeAway, Inc. by the weighted average common shares outstanding plus potentially dilutive common shares. The dilutive effect of outstanding options, warrants and awards is reflected in diluted earnings per share by application of the treasury stock method. Restricted stock awards provide the holder of unvested shares the right to participate in dividends declared on the Company’s common stock. Accordingly, these shares are included in the weighted average shares outstanding for the computation of basic earnings per share in periods of undistributed earnings. Restricted stock awards are excluded from the basic earnings per share in periods of undistributed losses as the holders are not contractually obligated to participate in the losses of the Company. Unvested restricted stock units do not provide the holder the right to participate in dividends declared on the Company’s common stock. Accordingly, these shares are excluded in the weighted average shares outstanding for the computation of basic earnings per share in periods of undistributed earnings or losses.
Comprehensive Income (Loss)	Comprehensive Income (Loss) Attributable to HomeAway, Inc. Comprehensive income (loss) attributable to HomeAway, Inc. consists of net income (loss), foreign currency translation adjustments, unrealized gain (loss) on short-term investments, defined benefit pension plan adjustments and comprehensive loss attributable to noncontrolling interests.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2014-09, Revenue from Contracts with Customers, requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The updated standard will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective and permits the use of either the retrospective or cumulative effect transition method. In July 2015, the FASB voted to defer the effective date to fiscal years, and interim reporting periods within those years, beginning after December 15, 2017. Early adoption is permitted. The Company has not yet selected a transition method and is currently evaluating the effect the updated standard will have on its consolidated financial statements and related disclosures. In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs, which changes the presentation of debt issuance costs in financial statements. The updated standard requires an entity to present such costs in the balance sheet as a direct deduction from the related debt liability rather than as an asset. Amortization of the costs will continue to be reported as interest expense. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Early adoption is permitted. The Company is currently evaluating the effect the updated standard will have on its consolidated balance sheets. In April 2015, the FASB issued ASU No. 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement. This standard clarifies whether a customer should account for a cloud computing arrangement as an acquisition of a software license or as a service arrangement by providing characteristics that a cloud computing arrangement must have in order to be accounted for as a software license acquisition. This guidance is effective for annual periods beginning after December 15, 2015. Early adoption is permitted. Upon adoption, an entity may apply the new guidance prospectively or retrospectively to all prior periods presented in the financial statements. The Company is currently evaluating the effect that the updated standard will have on its consolidated financial statements and related disclosures. In September 2015, the FASB issued ASU No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which requires that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined, including the effects on current-period income that would have been recognized in previous periods if the adjustments were recognized as of the acquisition date. The new standard is effective for fiscal years, and interim period within those fiscal years, beginning after December 15, 2015. Early adoption is permitted. The Company is currently evaluating the effect that the update standard will have on its consolidated financial statements and related disclosures.

Summary of Significant Accoun21

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2015
Accounting Policies [Abstract]
Fair Value of Financial Assets and Liabilities Measured on Recurring Basis	The following table summarizes the basis used to measure certain financial assets at fair value on a recurring basis in the Company’s condensed consolidated balance sheet at September 30, 2015 (in thousands): Balance as of Quoted Prices in Significant Significant Assets: Cash equivalents Money market funds $ 151,691 $ 151,691 $ — $ — Total cash equivalents 151,691 151,691 — — Restricted cash Time deposits 1,983 — 1,983 — Total restricted cash 1,983 — 1,983 — Short-term investments U.S. government agency bonds 23,339 — 23,339 — Time deposits 39,529 — 39,529 — Corporate bonds 346,782 — 346,782 — International government bonds 21,390 — 21,390 — Municipal bonds 187,303 — 187,303 — Total short-term investments 618,343 — 618,343 — Total financial assets $ 772,017 $ 151,691 $ 620,326 $ — The following table summarizes the basis used to measure certain financial assets at fair value on a recurring basis in the Company’s condensed consolidated balance sheet at December 31, 2014 (in thousands): Balance as of Quoted Prices in Significant Significant Assets: Cash equivalents Money market funds $ 183,008 $ 183,008 $ — $ — Municipal bonds 1,001 — 1,001 — Total cash equivalents 184,009 183,008 1,001 — Restricted cash — Time deposits 2,058 — 2,058 — Total restricted cash 2,058 — 2,058 — Short-term investments Time deposits 21,726 — 21,726 — Corporate bonds 353,212 — 353,212 — International government bonds 1,501 — 1,501 — Municipal bonds 140,406 — 140,406 — Commercial paper 3,999 — 3,999 — Total short-term investments 520,844 — 520,844 — Total financial assets $ 706,911 $ 183,008 $ 523,903 $ —
Schedule of Cash and Cash Equivalents	Cash and cash equivalents consisted of the following (in thousands): September 30, December 31, Demand deposit accounts $ 149,602 $ 108,316 Money market funds 151,691 183,008 Municipal bonds — 1,001 Total cash and cash equivalents $ 301,293 $ 292,325
Short-Term Investments	Short-term investments consisted of the following (in thousands): September 30, 2015 Gross Cost Gross Gross Estimated U.S government agency bonds $ 23,375 $ 3 $ (39 ) $ 23,339 Time deposits 39,529 — — 39,529 Corporate bonds 346,949 141 (308 ) 346,782 International government bonds 21,418 — (28 ) 21,390 Municipal bonds 187,254 83 (34 ) 187,303 Total short-term investments $ 618,525 $ 227 $ (409 ) $ 618,343 December 31, 2014 Gross Cost Gross Gross Estimated Time deposits $ 21,726 $ — $ — $ 21,726 Corporate bonds 353,957 7 (752 ) 353,212 International government bonds 1,504 — (3 ) 1,501 Municipal bonds 140,455 45 (94 ) 140,406 Commercial paper 3,999 — — 3,999 Total short-term investments $ 521,641 $ 52 $ (849 ) $ 520,844
Summary of Contractual Underlying Maturities of Short-Term Investments	The following table summarizes the contractual underlying maturities of the Company’s short-term investments (in thousands): September 30, 2015 Less than 1 Year 1 to 3 Years Total U.S government agency bonds $ 597 $ 22,742 $ 23,339 Time deposits 25,951 13,578 39,529 Corporate bonds 203,039 143,743 346,782 International government bonds 15,192 6,198 21,390 Municipal bonds 131,167 56,136 187,303 Total short-term investments $ 375,946 $ 242,397 $ 618,343 December 31, 2014 Less than 1 Year 1 to 3 Years Total Time deposits $ 21,479 $ 247 $ 21,726 Corporate bonds 240,570 112,642 353,212 International government bonds 1,501 — 1,501 Municipal bonds 87,615 52,791 140,406 Commercial paper 3,999 — 3,999 Total short-term investments $ 355,164 $ 165,680 $ 520,844
Summary of Depreciation Expenses on Internally Developed Software and Website Development Costs	The Company recorded depreciation expense on internally developed software and website development costs as follows (in thousands): Three Months Ended Nine Months Ended 2015 2014 2015 2014 Depreciation expense on internally developed software and website development costs $ 1,677 $ 1,343 $ 4,867 $ 3,947
Summary of Excess Tax Benefit	The following table summarizes the excess tax benefit that the Company recorded (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Excess tax benefit from stock-based compensation, net $ 5,200 $ 1,362 $ 7,494 $ 2,583
Summary of Foreign Exchange Loss	The following table summarizes the foreign exchange loss that the Company recorded (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2015 2014 2015 2014 Foreign exchange loss $ 279 $ 1,432 $ 930 $ 6,421
Schedule of Fair Value and Notional Amounts of Outstanding or Unsettled Derivative Instruments	The following table shows the fair value and notional amounts of the Company’s outstanding or unsettled derivative instruments that are not designated as hedging instruments covering foreign currency exposures as of September 30, 2015 which settled October 2, 2015 (in thousands): September 30, 2015 Significant Other Observable Inputs (Level 2) Gross Amount of Gross Amounts Net Amount U.S. Dollar Prepaid expense and other current assets $ 1,173 $ — $ 1,173 $ 41,301 Accrued expenses (656 ) — (656 ) 129,303 Total $ 517 $ — $ 517 $ 170,604 In addition to the notional amounts listed above, the Company entered into new derivative contracts with notional amounts of $157,735,000 on September 30, 2015 with a closing date of January 5, 2016. The following table shows the fair value and notional amounts of the Company’s outstanding or unsettled derivative instruments that are not designated as hedging instruments covering foreign currency exposures as of December 31, 2014 which settled January 2, 2015 (in thousands): December 31, 2014 Significant Other Gross Amount of Gross Amounts Net Amount U.S. Dollar Prepaid expense and other current assets $ 4,506 $ — $ 4,506 $ 157,164 Accrued expenses (67 ) — (67 ) 11,562 Total $ 4,439 $ — $ 4,439 $ 168,726

Goodwill and Other Intangible22

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Goodwill Balance	Changes in the Company’s goodwill balance are summarized in the table below (in thousands): Balance at December 31, 2013 $ 507,611 Acquired in business combinations 11,647 Foreign currency translation adjustment (26,098 ) Post-acquisition goodwill adjustment for Stayz 511 Balance at December 31, 2014 493,671 Foreign currency translation adjustment (33,622 ) Balance at September 30, 2015 $ 460,049
Summary of Finite-Lived Intangible Assets	The Company’s finite-lived intangible assets are summarized in the table below (in thousands): September 30, 2015 December 31, 2014 Useful Life Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Trade names and trademarks 10 $ 28,525 $ (9,572 ) $ 18,953 $ 30,316 $ (8,396 ) $ 21,920 Developed technology 2-8 20,290 (14,748 ) 5,542 21,293 (13,231 ) 8,062 Customer relationships 6-14 53,436 (27,650 ) 25,786 57,656 (25,512 ) 32,144 Noncompete agreements and domain names 2-5 1,949 (1,256 ) 693 2,224 (923 ) 1,301 Total $ 104,200 $ (53,226 ) $ 50,974 $ 111,489 $ (48,062 ) $ 63,427
Summary of Amortization Expenses	The following table summarizes amortization expense (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Amortization expense $ 2,819 $ 3,397 $ 8,713 $ 10,163
Indefinite-Lived Intangible Assets	The Company has the following indefinite-lived intangible assets recorded in its consolidated balance sheet (in thousands): September 30, December 31, 2015 2014 Trade names $ 7,029 $ 7,029

Accrued Expenses (Tables)

Accrued Expenses (Tables)	9 Months Ended
	Sep. 30, 2015
Payables and Accruals [Abstract]
Accrued Expenses	The Company’s accrued expenses are comprised of the following (in thousands): September 30, December 31, 2015 2014 Compensation and related benefits $ 19,591 $ 21,413 Taxes 6,810 4,954 Marketing 5,131 4,115 Gift cards 4,103 5,654 Contracting, consulting and professional fees 3,111 3,254 Traveler guarantee 1,246 1,790 Foreign exchange-forward contracts 683 99 Other 9,771 8,976 Total $ 50,446 $ 50,255

Convertible Senior Notes (Table

Convertible Senior Notes (Tables)	9 Months Ended
	Sep. 30, 2015
Debt Disclosure [Abstract]
Summary of Convertible Senior Notes	Equity Carrying Value of Convertible Component Senior Notes as of Recorded September 30, December 31, (In thousands) Par Value at Issuance 2015 2014 0.125% Convertible Senior Notes due April 1, 2019 $ 402,500 $ 90,887 (1) $ 329,905 $ 316,181 (1) This amount represents the equity component recorded at the initial issuance of the 0.125% convertible senior notes.
Schedule of Conversion of Senior Notes to Common Stock	Conversion Initial Free 0.125% Convertible Senior Notes 19.1703 $ 52.16 October 1, 2018
Schedule of Convertible Senior Notes	The Notes consist of the following (in thousands): September 30, December 31, 2015 2014 Liability component: Principal: 0.125% Convertible Senior Notes $ 402,500 $ 402,500 Less: debt discount, net 0.125% Convertible Senior Notes (72,595 ) (86,319 ) Net carrying amount $ 329,905 $ 316,181
Summary of Hedge Notes	Date Purchase Shares underlying Note Hedges March 2014 $ 85,853 7,716,049
Components of Warrants	Date Proceeds Shares Strike Warrants March 2014 $ 38,278 7,716,049 $ 81.14
Schedule of Total Interest Expense Recognized	The following table sets forth total interest expense recognized related to the Notes (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 0.125% coupon $ 126 $ 126 $ 378 $ 252 Amortization of debt issuance costs 14 13 40 26 Amortization of debt discount 4,641 4,378 13,724 8,694 Total $ 4,781 $ 4,517 $ 14,142 $ 8,972

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Summary of Rental Expense	The following table summarizes total rental expense (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Rental expense $ 1,733 $ 1,911 $ 5,754 $ 5,134
Changes for Traveler Guarantees	Expected future claims for traveler guarantees, which are presented as a current liability in the Company’s condensed consolidated balance sheets, and changes for the guarantees, are as follows (in thousands): Traveler guarantee liability at December 31, 2013 $ 956 Costs accrued for new and expected future claims 3,576 Guarantee obligations honored (2,742 ) Traveler guarantee liability at December 31, 2014 $ 1,790 Costs accrued for new and expected future claims 1,216 Guarantee obligations honored (1,760 ) Traveler guarantee liability at September 30, 2015 $ 1,246

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Total Stock-Based Compensation Expense	The following table summarizes the total stock-based compensation expense (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Cost of revenue $ 881 $ 847 $ 2,615 $ 2,415 Product development 3,931 3,485 10,769 9,589 Sales and marketing 3,152 2,763 9,003 7,868 General and administrative 4,654 5,576 15,100 15,710 Total $ 12,618 $ 12,671 $ 37,487 $ 35,582

Redeemable Noncontrolling Int27

Redeemable Noncontrolling Interests (Tables)	9 Months Ended
	Sep. 30, 2015
Noncontrolling Interest [Abstract]
Schedule of Changes of Redeemable Noncontrolling Interests	Changes in the Company’s redeemable noncontrolling interests are summarized in the table below (in thousands): Balance at December 31, 2013 $ 10,584 Net loss attributable to noncontrolling interests (1,839 ) Changes to redemption value of noncontrolling interests 2,421 Repurchase of redeemable noncontrolling interests (1,461 ) Currency translation adjustments 37 Balance at December 31, 2014 $ 9,742 Net loss attributable to noncontrolling interests (1,623 ) Changes to redemption value of noncontrolling interests 914 Balance at September 30, 2015 $ 9,033

Accumulated Other Comprehensi28

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Sep. 30, 2015
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated other comprehensive loss consists of the following (in thousands): September 30, December 31, 2015 2014 Foreign currency translation adjustments $ (56,276 ) $ (27,252 ) Unrealized losses on short-term investments (183 ) (801 ) Defined benefit pension plan adjustments (4,149 ) — Total $ (60,608 ) $ (28,053 )

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Summary of Income Tax Expenses	The following table summarizes the total income tax expense that the Company recorded, and the related effective tax rate, for the three and nine months ended September 30, 2015 and 2014 (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Income tax expense $ 5,625 $ 845 $ 9,757 $ 5,909 Effective tax rate 36.3 % 13.9 % 65.1 % 31.5 %

Net Income Per Share Attribut30

Net Income Per Share Attributable to HomeAway, Inc. (Tables)	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Computation of Basic and Diluted Net Income Per Share of Common Stock	The following table sets forth the computation of basic and diluted net income per share of common stock (in thousands, except per share amounts): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Numerator Net income attributable to HomeAway, Inc. $ 10,417 $ 4,912 $ 5,942 $ 13,222 Denominator Weighted average common shares outstanding - basic 95,716 94,106 95,162 93,507 Dilutive effect of stock options, warrants and restricted stock units 1,972 2,283 2,227 2,851 Weighted average common shares outstanding - diluted 97,688 96,389 97,389 96,358 Net income per share attributable to HomeAway, Inc.: Basic $ 0.11 $ 0.05 $ 0.06 $ 0.14 Diluted $ 0.11 $ 0.05 $ 0.06 $ 0.14
Common Equivalent Shares Excluded from Calculation of Diluted Net Loss Per Share Attributable to HomeAway, Inc as their Inclusion Would have been Anti-Dilutive	The following common equivalent shares were excluded from the calculation of diluted net loss per share attributable to HomeAway, Inc. as their inclusion would have been anti-dilutive (in thousands): Three Months Ended Nine Months Ended September 30, September 30, 2015 2014 2015 2014 Stock options 3,295 2,604 3,089 2,038 Restricted stock units 547 62 21 49 Warrants 7,716 7,716 7,716 7,716 Total common equivalent shares excluded 11,558 10,382 10,826 9,803

Summary of Significant Accoun31

Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended	9 Months Ended
	Sep. 30, 2015USD ($)	Sep. 30, 2015USD ($)Segment	Dec. 31, 2014USD ($)	Sep. 30, 2014USD ($)
Significant Accounting Policies [Line Items]
Number of operating segment | Segment		1
Available for sales securities, premium	$ 9,240,000	$ 9,240,000		$ 11,239,000
Capitalized certain internally developed software	38,759,000	38,759,000	$ 36,038,000
Decrease in other comprehensive income	$ (96,000)	$ 4,149,000
Recognized income tax positions, percentage	50.00%	50.00%
Derivatives amount	$ 157,735,000	$ 157,735,000
Money market funds [Member]
Significant Accounting Policies [Line Items]
Restricted cash	2,200,000	$ 2,200,000	$ 2,492,000
Breakage Revenue [Member]
Significant Accounting Policies [Line Items]
Revenue recognition period		48 months
Commission Revenue [Member]
Significant Accounting Policies [Line Items]
Revenue recognition period		48 months
Canada [Member]
Significant Accounting Policies [Line Items]
Carrying value of non-marketable cost investment	2,799,000	$ 2,799,000
China [Member]
Significant Accounting Policies [Line Items]
Total carrying value of company investments	19,498,000	19,498,000
United States [Member]
Significant Accounting Policies [Line Items]
Carrying value of non-marketable cost investment	15,000,000	15,000,000
Turkey [Member]
Significant Accounting Policies [Line Items]
Carrying value of non-marketable cost investment	$ 2,000,000	2,000,000
Adjustments to Prior Period Errors [Member]
Significant Accounting Policies [Line Items]
Increase in liabilities		4,200,000
Decrease in other comprehensive income		4,000,000
Decrease in profit before tax		$ 200,000
Equipment, computer hardware and purchased computer software [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment useful life		3 years
Furniture and fixtures [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment useful life		5 years
Furniture and fixtures [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment useful life		10 years
Leasehold Improvements [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment useful life description		Shorter of the contractual lease period or estimated useful life.
Internally Developed Software and Website Development Costs [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment useful life		5 years

Summary of Significant Accoun32

Summary of Significant Accounting Policies - Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 618,343	$ 520,844
Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash	2,200	2,492
Time Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	39,529	21,726
Municipal bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	187,303	140,406
Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	346,782	353,212
International government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	21,390	1,501
U.S. government agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	23,339
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	151,691	184,009
Restricted cash	1,983	2,058
Short-term investments	618,343	520,844
Total financial assets	772,017	706,911
Fair Value, Measurements, Recurring [Member] | Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	151,691	183,008
Fair Value, Measurements, Recurring [Member] | Time Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash	1,983	2,058
Short-term investments	39,529	21,726
Fair Value, Measurements, Recurring [Member] | Municipal bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		1,001
Short-term investments	187,303	140,406
Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	346,782	353,212
Fair Value, Measurements, Recurring [Member] | International government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	21,390	1,501
Fair Value, Measurements, Recurring [Member] | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments		3,999
Fair Value, Measurements, Recurring [Member] | U.S. government agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	23,339
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	151,691	183,008
Total financial assets	151,691	183,008
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fair Value, Measurements, Recurring [Member] | Money market funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	151,691	183,008
(Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		1,001
Restricted cash	1,983	2,058
Short-term investments	618,343	520,844
Total financial assets	620,326	523,903
(Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Time Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Restricted cash	1,983	2,058
Short-term investments	39,529	21,726
(Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Municipal bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents		1,001
Short-term investments	187,303	140,406
(Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Corporate bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	346,782	353,212
(Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | International government bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	21,390	1,501
(Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | Commercial paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments		$ 3,999
(Level 2) [Member] | Fair Value, Measurements, Recurring [Member] | U.S. government agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	$ 23,339

Summary of Significant Accoun33

Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 301,293	$ 292,325	$ 292,103	$ 324,608
Demand Deposits [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	149,602	108,316
Money market funds [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 151,691	183,008
Municipal bonds [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents		$ 1,001

Summary of Significant Accoun34

Summary of Significant Accounting Policies - Short-Term Investments (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Gross Cost	$ 618,525	$ 521,641
Gross Unrealized Gains	227	52
Gross Unrealized Losses	(409)	(849)
Short-term Investments, fair value	618,343	520,844
Time Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Cost	39,529	21,726
Short-term Investments, fair value	39,529	21,726
Commercial paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Cost		3,999
Short-term Investments, fair value		3,999
U.S. government agency bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Cost	23,375
Gross Unrealized Gains	3
Gross Unrealized Losses	(39)
Short-term Investments, fair value	23,339
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Cost	346,949	353,957
Gross Unrealized Gains	141	7
Gross Unrealized Losses	(308)	(752)
Short-term Investments, fair value	346,782	353,212
International government bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Cost	21,418	1,504
Gross Unrealized Losses	(28)	(3)
Short-term Investments, fair value	21,390	1,501
Municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross Cost	187,254	140,455
Gross Unrealized Gains	83	45
Gross Unrealized Losses	(34)	(94)
Short-term Investments, fair value	$ 187,303	$ 140,406

Summary of Significant Accoun35

Summary of Significant Accounting Policies - Summary of Contractual Underlying Maturities of Short-Term Investments (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Short-term Investments, Less than 1 Year	$ 375,946	$ 355,164
Short-term Investments, 1 to 3 Years	242,397	165,680
Short-term Investments, fair value	618,343	520,844
Time Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term Investments, Less than 1 Year	25,951	21,479
Short-term Investments, 1 to 3 Years	13,578	247
Short-term Investments, fair value	39,529	21,726
Commercial paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term Investments, Less than 1 Year		3,999
Short-term Investments, fair value		3,999
U.S. government agency bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term Investments, Less than 1 Year	597
Short-term Investments, 1 to 3 Years	22,742
Short-term Investments, fair value	23,339
Corporate bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term Investments, Less than 1 Year	203,039	240,570
Short-term Investments, 1 to 3 Years	143,743	112,642
Short-term Investments, fair value	346,782	353,212
International government bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term Investments, Less than 1 Year	15,192	1,501
Short-term Investments, 1 to 3 Years	6,198
Short-term Investments, fair value	21,390	1,501
Municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Short-term Investments, Less than 1 Year	131,167	87,615
Short-term Investments, 1 to 3 Years	56,136	52,791
Short-term Investments, fair value	$ 187,303	$ 140,406

Summary of Significant Accoun36

Summary of Significant Accounting Policies - Summary of Depreciation Expenses on Internally Developed Software and Website Development Costs (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Depreciation and Other Amortization Expenses [Line Items]
Depreciation expense on internally developed software and website development costs			$ 16,204	$ 12,091
Internally Developed Software and Website Development Costs [Member]
Depreciation and Other Amortization Expenses [Line Items]
Depreciation expense on internally developed software and website development costs	$ 1,677	$ 1,343	$ 4,867	$ 3,947

Summary of Significant Accoun37

Summary of Significant Accounting Policies - Summary of Excess Tax Benefit (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accounting Policies [Abstract]
Excess tax benefit from stock-based compensation, net	$ 5,200	$ 1,362	$ 7,494	$ 2,583

Summary of Significant Accoun38

Summary of Significant Accounting Policies - Summary of Foreign Exchange Loss (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Accounting Policies [Abstract]
Foreign exchange loss	$ 279	$ 1,432	$ 930	$ 6,421

Summary of Significant Accoun39

Summary of Significant Accounting Policies - Schedule of Fair Value and Notional Amounts of Outstanding or Unsettled Derivative Instruments (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Notional Amount	$ 157,735,000
Not Designated as Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	170,604,000	$ 168,726,000
Not Designated as Hedging Instruments [Member] | Accrued expenses [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	129,303,000	11,562,000
Not Designated as Hedging Instruments [Member] | Prepaid expense and other current assets [Member]
Derivatives, Fair Value [Line Items]
Notional Amount	41,301,000	157,164,000
Not Designated as Hedging Instruments [Member] | (Level 2) [Member]
Derivatives, Fair Value [Line Items]
Gross Amount of Recognized Assets/Liabilities	517,000	4,439,000
Gross Amounts Offset in the Balance Sheet	0	0
Net Amount Presented in the Balance Sheet	517,000	4,439,000
Not Designated as Hedging Instruments [Member] | (Level 2) [Member] | Accrued expenses [Member]
Derivatives, Fair Value [Line Items]
Gross Amount of Recognized Assets/Liabilities	(656,000)	(67,000)
Gross Amounts Offset in the Balance Sheet	0	0
Net Amount Presented in the Balance Sheet	(656,000)	(67,000)
Not Designated as Hedging Instruments [Member] | (Level 2) [Member] | Prepaid expense and other current assets [Member]
Derivatives, Fair Value [Line Items]
Gross Amount of Recognized Assets/Liabilities	1,173,000	4,506,000
Gross Amounts Offset in the Balance Sheet	0	0
Net Amount Presented in the Balance Sheet	$ 1,173,000	$ 4,506,000

Goodwill and Other Intangible40

Goodwill and Other Intangible Assets - Changes in Goodwill Balance (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Beginning balance	$ 493,671	$ 507,611
Acquired in business combinations		11,647
Foreign currency translation adjustment	(33,622)	(26,098)
Post-acquisition goodwill adjustment for Stayz		511
Ending balance	$ 460,049	$ 493,671

Goodwill and Other Intangible41

Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Line Items]
Goodwill	$ 460,049	$ 493,671	$ 507,611
Stayz [Member]
Goodwill [Line Items]
Increase in goodwill	511
Goodwill	$ 178,288

Goodwill and Other Intangible42

Goodwill and Other Intangible Assets - Summary of Finite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 104,200	$ 111,489
Accumulated Amortization	(53,226)	(48,062)
Net Carrying Amount	$ 50,974	63,427
Trade names and trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset useful life	10 years
Gross Carrying Amount	$ 28,525	30,316
Accumulated Amortization	(9,572)	(8,396)
Net Carrying Amount	18,953	21,920
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	20,290	21,293
Accumulated Amortization	(14,748)	(13,231)
Net Carrying Amount	$ 5,542	8,062
Developed technology [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset useful life	2 years
Developed technology [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset useful life	8 years
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 53,436	57,656
Accumulated Amortization	(27,650)	(25,512)
Net Carrying Amount	$ 25,786	32,144
Customer relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset useful life	6 years
Customer relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset useful life	14 years
Noncompete agreements and domain names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,949	2,224
Accumulated Amortization	(1,256)	(923)
Net Carrying Amount	$ 693	$ 1,301
Noncompete agreements and domain names [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset useful life	2 years
Noncompete agreements and domain names [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset useful life	5 years

Goodwill and Other Intangible43

Goodwill and Other Intangible Assets - Summary of Amortization Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 2,819	$ 3,397	$ 8,713	$ 10,163

Goodwill and Other Intangible44

Goodwill and Other Intangible Assets - Indefinite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Trade names [Member]
Indefinite-lived Intangible Assets [Line Items]
Trade names	$ 7,029	$ 7,029

Accrued Expenses - Accrued Expe

Accrued Expenses - Accrued Expenses (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Payables and Accruals [Abstract]
Compensation and related benefits	$ 19,591	$ 21,413
Taxes	6,810	4,954
Marketing	5,131	4,115
Gift cards	4,103	5,654
Contracting, consulting and professional fees	3,111	3,254
Traveler guarantee	1,246	1,790	$ 956
Foreign exchange-forward contracts	683	99
Other	9,771	8,976
Total	$ 50,446	$ 50,255

Convertible Senior Notes - Summ

Convertible Senior Notes - Summary of Convertible Senior Notes (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Mar. 31, 2014
Debt Instrument [Line Items]
Carrying Value of Convertible Senior Notes	$ 329,905	$ 316,181
Convertible Senior Notes 0.125% due April 1, 2019 [Member]
Debt Instrument [Line Items]
Par Value	402,500		$ 402,500
Equity Component Recorded at Issuance	90,887
Carrying Value of Convertible Senior Notes	$ 329,905	$ 316,181

Convertible Senior Notes - Su47

Convertible Senior Notes - Summary of Convertible Senior Notes (Parenthetical) (Detail) - Convertible Senior Notes 0.125% due April 1, 2019 [Member]	9 Months Ended
	Sep. 30, 2015	Mar. 31, 2014
Debt Instrument [Line Items]
Senior notes, Interest rate	0.125%	0.125%
Senior notes, Maturity date	Apr. 1, 2019

Convertible Senior Notes - Addi

Convertible Senior Notes - Additional Information (Detail)	3 Months Ended	9 Months Ended
	Mar. 31, 2014USD ($)	Sep. 30, 2015USD ($)$ / shares	Dec. 31, 2014USD ($)
Debt Instrument [Line Items]
Closing price of common stock | $ / shares		$ 26.54
Warrants price per unit | $ / shares		$ 81.14
Term issuance of warrants		5 years
Convertible Senior Notes 0.125% due April 1, 2019 [Member]
Debt Instrument [Line Items]
Interest rate	0.125%	0.125%
Debt par value	$ 402,500,000	$ 402,500,000
Semi-annual first interest is payable	--04-01
Semi-annual second interest is payable	--10-01
Interest is payable start date	Oct. 1, 2014
Debt conversion description		During any calendar quarter commencing after June 30, 2014, if, for at least 20 trading days during the 30 consecutive trading day period ending on the last trading day of the immediately preceding calendar quarter, the last reported sales price of the Company's common stock for such trading day is greater than or equal to 130% of the applicable conversion price for the Notes on each applicable trading day
Debt instrument convertible threshold trading days		20
Common stock closing sales price percentage		130.00%
Percentage of trading price for conversion of note		98.00%
Consecutive trading period		5 days
Principal amount		$ 1,000
Percentage of principal amount of notes		100.00%
Convertible Senior Notes 0.125% due April 1, 2019 [Member] | (Level 2) [Member]
Debt Instrument [Line Items]
Total estimated fair value of the notes		$ 293,300,000
0.125% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Debt par value		402,500,000	$ 402,500,000
Deferred tax liability		$ 800,000

Convertible Senior Notes - Sche

Convertible Senior Notes - Schedule of Conversion of Senior Notes to Common Stock (Detail) - 0.125% Convertible Senior Notes [Member]	9 Months Ended
	Sep. 30, 2015$ / shares
Debt Instrument [Line Items]
Debt instrument conversion rate	19.1703
Initial conversion price per share	$ 52.16
Free Convertibility Date	Oct. 1, 2018

Convertible Senior Notes - Sc50

Convertible Senior Notes - Schedule of Conversion of Senior Notes (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Net carrying amount	$ 329,905	$ 316,181
0.125% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Principal: 0.125% Convertible Senior Notes	402,500	402,500
Less: debt discount, net 0.125% Convertible Senior Notes	(72,595)	(86,319)
Net carrying amount	$ 329,905	$ 316,181

Convertible Senior Notes - Su51

Convertible Senior Notes - Summary of Hedge Notes (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Derivatives, Fair Value [Line Items]
Note Hedges, Purchase		$ 85,853
Note Hedges [Member]
Derivatives, Fair Value [Line Items]
Note Hedges, Contract Date	2014-03
Note Hedges, Purchase	$ 85,853
Underlying Note Hedges, Shares	7,716,049

Convertible Senior Notes - Comp

Convertible Senior Notes - Components of Warrants (Detail) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Class of Warrant or Right [Line Items]
Warrants, proceed amount		$ 38,278
Warrants, shares	7,716,049
Warrants, strike price	$ 81.14
Warrants [Member]
Class of Warrant or Right [Line Items]
Warrants, proceed amount	$ 38,278

Convertible Senior Notes - Sc53

Convertible Senior Notes - Schedule of Total Interest Expense Recognized (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Debt Disclosure [Abstract]
0.125% coupon	$ 126	$ 126	$ 378	$ 252
Amortization of debt issuance costs	14	13	40	26
Amortization of debt discount	4,641	4,378	13,724	8,694
Total	$ 4,781	$ 4,517	$ 14,142	$ 8,972

Commitments and Contingencies -

Commitments and Contingencies - Summary of Rental Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Leases [Abstract]
Rental expense	$ 1,733	$ 1,911	$ 5,754	$ 5,134

Commitments and Contingencies55

Commitments and Contingencies - Additional Information (Detail) - Sep. 30, 2015	USD ($)	GBP (£)
Carefree Rental Guarantee [Member]
Commitments and Contingencies [Line Items]
Guarantee maximum exposure amount	$ 10,000
Basic Rental Guarantee [Member]
Commitments and Contingencies [Line Items]
Guarantee maximum exposure amount	1,000
Subsidiary's Bank Credit, United Kingdom [Member] | United Kingdom [Member]
Commitments and Contingencies [Line Items]
Guarantee maximum exposure amount	$ 7,595,000	£ 5,000,000

Commitments and Contingencies56

Commitments and Contingencies - Changes for Traveler Guarantees (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Traveler guarantee liability, beginning balance	$ 1,790	$ 956
Costs accrued for new and expected future claims	1,216	3,576
Guarantee obligations honored	(1,760)	(2,742)
Traveler guarantee liability, ending balance	$ 1,246	$ 1,790

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - Stock Incentive Plan 2011 [Member] - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015
Stock-Based Compensation And Stockholders Equity [Line Items]
Restricted stock units issued, aggregate fair value	$ 14,261,000	$ 49,261,000
Restricted Stock Units [Member]
Stock-Based Compensation And Stockholders Equity [Line Items]
Share-based compensation, Number of shares issued	502,383	1,686,767
Stock Option [Member]
Stock-Based Compensation And Stockholders Equity [Line Items]
Share-based compensation, Number of shares issued	83,644	947,986
Common stock issued pursuant to stock awards, aggregate fair value	$ 958,000	$ 9,995,000

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 12,618	$ 12,671	$ 37,487	$ 35,582
Cost of revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	881	847	2,615	2,415
Product development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	3,931	3,485	10,769	9,589
Sales and marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	3,152	2,763	9,003	7,868
General and administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 4,654	$ 5,576	$ 15,100	$ 15,710

Redeemable Noncontrolling Int59

Redeemable Noncontrolling Interests - Additional Information (Detail)	Dec. 31, 2014	Dec. 31, 2013
Travelmob [Member]
Redeemable Noncontrolling Interest [Line Items]
Percentage of ownership interest		68.50%
Bookabach [Member]
Redeemable Noncontrolling Interest [Line Items]
Percentage of ownership interest	75.00%	55.00%
Percentage of additional ownership interest acquired	20.00%

Redeemable Noncontrolling Int60

Redeemable Noncontrolling Interests - Schedule of Changes of Redeemable Noncontrolling Interests (Detail) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Noncontrolling Interest [Abstract]
Beginning balance	$ 9,742	$ 10,584	$ 10,584
Net loss attributable to noncontrolling interests	(1,623)		(1,839)
Changes to redemption value of noncontrolling interests	914	$ 851	2,421
Repurchase of redeemable noncontrolling interests			(1,461)
Currency translation adjustments			37
Ending balance	$ 9,033		$ 9,742

Accumulated Other Comprehensi61

Accumulated Other Comprehensive Loss - Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Foreign currency translation adjustments	$ (56,276)	$ (27,252)
Unrealized losses on short-term investments	(183)	(801)
Defined benefit pension plan adjustments	(4,149)
Total	$ (60,608)	$ (28,053)

Income Taxes - Summary of Incom

Income Taxes - Summary of Income Tax Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Income tax expense	$ 5,625	$ 845	$ 9,757	$ 5,909
Effective tax rate	36.30%	13.90%	65.10%	31.50%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Taxes [Line Items]
Income tax expense	$ 5,625	$ 845	$ 9,757	$ 5,909
Effective income tax rate, expense (Benefit) of wholly owned subsidiaries, amount		$ (2,500)
Adjustments to Prior Period Errors [Member]
Income Taxes [Line Items]
Income tax expense			$ (400)

Net Income Per Share Attribut64

Net Income Per Share Attributable to HomeAway, Inc. - Computation of Basic and Diluted Net Income Per Share of Common Stock (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Numerator
Net income attributable to HomeAway, Inc.	$ 10,417	$ 4,912	$ 5,942	$ 13,222
Denominator
Weighted average common shares outstanding - basic	95,716	94,106	95,162	93,507
Dilutive effect of stock options, warrants and restricted stock units	1,972	2,283	2,227	2,851
Weighted average common shares outstanding - diluted	97,688	96,389	97,389	96,358
Net income per share attributable to HomeAway, Inc.:
Basic	$ 0.11	$ 0.05	$ 0.06	$ 0.14
Diluted	$ 0.11	$ 0.05	$ 0.06	$ 0.14

Net Income Per Share Attribut65

Net Income Per Share Attributable to HomeAway, Inc. - Common Equivalent Shares Excluded from Calculation of Diluted Net Loss Per Share attributable to HomeAway, Inc as their Inclusion Would have been Anti-Dilutive (Detail) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common equivalent shares excluded from the calculation of net income per share	11,558	10,382	10,826	9,803
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common equivalent shares excluded from the calculation of net income per share	3,295	2,604	3,089	2,038
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common equivalent shares excluded from the calculation of net income per share	547	62	21	49
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common equivalent shares excluded from the calculation of net income per share	7,716	7,716	7,716	7,716

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) $ / shares in Units, $ in Millions	Nov. 04, 2015USD ($)$ / shares	Oct. 01, 2015USD ($)	Oct. 31, 2015USD ($)	Sep. 30, 2015
Dwellable Inc [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Cash consideration		$ 18
Travelmob [Member] | Call Option [Member]
Subsequent Event [Line Items]
Call option purchase agreement start date				Dec. 31, 2016
Travelmob [Member] | Put Option [Member]
Subsequent Event [Line Items]
Put option to repurchase remaining interest agreement start date				Feb. 1, 2017
Travelmob [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Operating expense charge			$ 3.9
Expedia, Inc. [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Outstanding shares of common stock equity value	$ 3,900
Common stock, per share price | $ / shares	$ 38.31
Outstanding shares of common stock exchange in cash | $ / shares	$ 10.15
Common stock, exchange in share	0.2065
Termination fee	$ 138