TrueCar (TRUE) 10-Q 14 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Aug. 08, 2014
Document and Entity Information	'	'
Entity Registrant Name	'TrueCar, Inc.	'
Entity Central Index Key	'0001327318	'
Document Type	'10-Q	'
Document Period End Date	30-Jun-14	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Current Reporting Status	'No	'
Entity Filer Category	'Non-accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	76,854,837
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current Assets	'	'
Cash and cash equivalents	$111,845	$43,819
Restricted cash — current	2,000	2,000
Accounts receivable, net of allowances of $1,490 and $2,184 at June 30, 2014 and December 31, 2013, respectively (includes related party receivables of $812 and $431 at June 30, 2014 and December 31, 2013, respectively)	24,829	18,803
Notes receivable from related parties — current	296	178
Prepaid expenses	6,866	3,550
Other current assets (includes related party receivables of $363 at December 31, 2013)	860	1,226
Total current assets	146,696	69,576
Property and equipment, net	17,104	15,238
Goodwill	53,270	53,270
Intangible assets, net	30,005	31,834
Notes receivable from related parties	'	2,682
Other assets	518	2,150
Total assets	247,593	174,750
Current liabilities	'	'
Accounts payable (includes related party payables of $1,307 and $1,161 at June 30, 2014 and December 31, 2013, respectively)	9,229	9,804
Accrued employee expenses	10,028	10,129
Revolving line of credit	'	4,764
Other accrued expenses	10,989	6,242
Total current liabilities	30,246	30,939
Deferred tax liabilities	2,104	1,791
Other liabilities	521	616
Total liabilities	32,871	33,346
Commitments and contingencies (Note 7)	'	'
Series A convertible preferred stock — $0.0001 par value; 4,500,000 shares authorized at December 31, 2013; no shares and 2,857,143 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	'	29,224
Stockholders' Equity	'	'
Preferred stock — $0.0001 par value; 20,000,000 shares authorized at June 30, 2014; no shares issued and outstanding at June 30, 2014 and December 31, 2013	'	'
Common stock — $0.0001 par value; 1,000,000,000 shares authorized at June 30, 2014 and 150,000,000 shares authorized at December 31, 2013; 76,814,334 and 59,955,343 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	8	6
Additional paid-in capital	402,229	275,803
Notes receivable from related parties	'	-1,069
Accumulated deficit	-187,515	-162,560
Total stockholders' equity	214,722	112,180
Total liabilities, convertible preferred stock and stockholders' equity	$247,593	$174,750

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Allowance for doubtful accounts receivable - current	$1,490	$2,184
Related party accounts receivable - current	812	431
Related party prepaid expenses - current	1,864	'
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares authorized	20,000,000	'
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	$0.00
Common stock, shares authorizied	1,000,000,000	150,000,000
Common stock, shares issued	76,814,334	59,955,343
Common stock, shares outstanding	76,814,334	59,955,343
Other current assets	'	'
Related party receivables - current	'	363
Accounts payable	'	'
Related party accounts payable - current	1,307	1,161
Accrued liabilities	'	'
Related party accounts payable - current	$150	$259
Convertible preferred stock	'	'
Par value	$0.00	$0.00
Shares authorizied	'	4,500,000
Shares issued	0	2,857,143
Shares outstanding	0	2,857,143

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Loss (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Statement [Abstract]	'	'	'	'
Revenues	$50,497	$31,223	$94,427	$56,266
Costs and operating expenses:	'	'	'	'
Cost of revenue (exclusive of depreciation and amortization presented separately below; includes related party expenses of $634 for the three months ended June 30, 2013, and $405 and $1,162 for six months ended June 30, 2014 and 2013, respectively)	4,137	3,673	7,858	7,435
Sales and marketing (includes related party expenses of $7,169 and $6,244 for the three months ended June 30, 2014 and 2013 and $10,771 and $7,651 for six months ended June 30, 2014 and 2013, respectively)	33,292	15,626	61,059	29,409
Technology and development	8,513	5,618	15,843	11,422
General and administrative	16,439	6,629	27,955	12,942
Depreciation and amortization	2,972	2,868	6,086	5,934
Total costs and operating expenses	65,353	34,414	118,801	67,142
Loss from operations	-14,856	-3,191	-24,374	-10,876
Interest income	10	29	27	61
Interest expense	-131	-510	-301	-1,751
Other income	10	6	10	14
Loss before provision for income taxes	-14,967	-3,666	-24,638	-12,552
Provision for income taxes	67	136	317	273
Net loss	-15,034	-3,802	-24,955	-12,825
Net loss per share	'	'	'	'
Basic and diluted	($0.22)	($0.07)	($0.39)	($0.22)
Weighted average common shares outstanding, basic and diluted	67,784	58,313	63,962	57,231
Other comprehensive loss:	'	'	'	'
Comprehensive loss	($15,034)	($3,802)	($24,955)	($12,825)

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Loss (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Cost of revenue	'	'	'	'
Costs and expenses with related paties	'	$634	$405	$1,162
Sales and marketing	'	'	'	'
Costs and expenses with related paties	$6,789	$2,040	$11,034	$3,447

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (Deficit) (USD $)	Common stock	APIC	Notes Receivable from Related Parties	Accumulated Deficit	Total
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2013	$6	$275,803	($1,069)	($162,560)	$112,180
Balance (in shares) at Dec. 31, 2013	59,955,343	'	'	'	59,955,343
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Net loss	'	'	'	-24,955	-24,955
Issuance of common stock in connection with initial public offering, net of underwriting discounts and offering costs	1	69,150	'	'	69,151
Issuance of common stock in connection with initial public offering, net of underwriting discounts and offering costs (in shares)	8,941,250	'	'	'	'
Conversion of Series A convertible preferred stock in connection with initial public offering	'	29,224	'	'	29,224
Conversion of Series A convertible preferred stock in connection with initial public offering (in shares)	2,857,143	'	'	'	'
Stock-based compensation	'	12,154	'	'	12,154
Issuance of warrants in connection with marketing agreements	'	4,668	'	'	4,668
Exercise of warrants to purchase common stock	1	9,460	'	'	9,461
Exercise of warrants to purchase common stock (in shares)	3,319,540	'	'	'	'
Exercise of options to purchase common stock	'	1,760	'	'	1,760
Exercise of options to purchase common stock (in shares)	1,741,058	'	'	'	'
Imputed interest on notes receivable	'	10	'	'	10
Interest income on notes receivable	'	'	-3	'	-3
Repayment of notes receivable	'	'	1,072	'	1,072
Balance at Jun. 30, 2014	$8	$402,229	'	($187,515)	$214,722
Balance (in shares) at Jun. 30, 2014	76,814,334	'	'	'	76,814,334

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash flows from operating activities	'	'
Net loss	($24,955)	($12,825)
Adjustments to reconcile net loss to net cash used in operating activities:	'	'
Depreciation and amortization	5,875	5,609
Deferred income taxes	317	271
Bad debt expense and other reserves	109	153
Stock-based compensation	11,540	3,616
Increase in fair value of contingent consideration liability	'	48
Common stock warrant expense	4,668	1,262
Imputed interest on notes receivable	10	62
Interest income on notes receivable	-18	-100
Interest expense on note payable	'	805
Accretion of beneficial conversion feature on convertible notes payable and discount on revolving line of credit	236	945
Loss on disposal of fixed assets	211	325
Changes in operating assets and liabilities	'	'
Accounts receivable	-6,183	-4,317
Prepaid expenses	-3,319	-2,953
Other current assets	457	-203
Other assets	-62	-30
Accounts payable	491	-1,315
Accrued employee expenses	-410	2,521
Other accrued expenses	4,700	178
Other liabilities	-97	-175
Net cash used in operating activities	-6,430	-6,123
Cash flows from investing activities	'	'
Change in restricted cash	'	2,500
Purchase of property and equipment	-4,790	-3,320
Purchase of intangible assets	-350	'
Notes receivable from related parties	-60	'
Repayment of notes receivable from related parties	3,761	'
Net cash used in investing activities	-1,439	-820
Cash flows from financing activities	'	'
Proceeds from initial public offering, net of underwriting discounts	69,674	'
Repayments under credit agreement	-5,000	'
Repurchase of vested common stock option awards	'	-2,000
Proceeds from exercise of common stock options	1,760	185
Exercise of warrants	9,461	'
Net cash provided by (used in) financing activities	75,895	-1,815
Net increase (decrease) in cash and cash equivalents	68,026	-8,758
Cash and cash equivalents at beginning of period	43,819	22,062
Cash and cash equivalents at end of period	111,845	13,304
Supplemental disclosures of non-cash activities	'	'
Stock-based compensation capitalized for software development	614	251
Capitalized assets included in accounts payable, accrued employee expenses and other accrued expenses	370	53
Conversion of convertible note payable and accrued interest to common stock	'	$25,447

Organization_and_Nature_of_Bus

Organization and Nature of Business	6 Months Ended
	Jun. 30, 2014
Organization and Nature of Business	'
Organization and Nature of Business	'
	1.Organization and Nature of Business
	TrueCar, Inc. is an Internet‑based information, technology, and communication services company. Hereinafter, TrueCar, Inc. and its wholly owned subsidiaries TrueCar.com, Inc. and ALG, Inc. are collectively referred to as “TrueCar” or the “Company”; TrueCar.com, Inc. is referred to as “TrueCar.com” and ALG, Inc. is referred to as “ALG”.
	TrueCar has established an intelligent, data‑driven online platform operating on a common technology infrastructure, powered by proprietary data and analytics. TrueCar operates its platform on the TrueCar.com website and TrueCar mobile applications. In addition, TrueCar customizes and operates its platform for affinity group marketing partners (“Affinity Group Marketing Partners”). An affinity group is comprised of a network of members or employees that provide discounts to its members. The TrueCar.com website and the car‑buying websites TrueCar operates for its Affinity Group Marketing Partners (the “Auto Buying Programs”) allow users to obtain market‑based pricing data on new and used cars, and to connect with TrueCar’s network of Certified Dealers.
	Initial Public Offering
	In May 2014, the Company completed its initial public offering (“IPO”) in which the Company sold an aggregate of 8,941,250 shares of its common stock, including 1,166,250 shares sold pursuant to the exercise by the underwriters of their option to purchase such shares, at a public offering price of $9.00 per share.  The Company received net proceeds of $69.2 million, after deducting underwriting discounts and commissions and offering expenses payable by the Company, from sales of its shares in the IPO. Immediately prior to the completion of the IPO, all shares of the then-outstanding Series A convertible preferred stock automatically converted into 2,857,143 shares of common stock.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2014
Summary of Significant Accounting Policies	'
Summary of Significant Accounting Policies	'
	2.Summary of Significant Accounting Policies
	Basis of Presentation
	The Company’s unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) for quarterly reports on Form 10–Q and Article 10-01 of Regulation S-X. Accordingly, some information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted pursuant to such rules and regulations. In the opinion of the Company’s management, the accompanying unaudited condensed consolidated financial statements and notes have been prepared on the same basis as the audited consolidated financial statements for the year ended December 31, 2013 and include all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the interim periods presented.
	The condensed consolidated balance sheet at December 31, 2013 has been derived from the audited financial statements at that date, but does not include all of the disclosures required by GAAP. The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s prospectus filed with the SEC on May 16, 2014 pursuant to Rule 424(b) of the Securities Act of 1933, as amended.
	Reclassification
	Certain prior year amounts have been reclassified for consistency with the current period presentation. These reclassifications were not material to the financial statements.
	Reverse Stock Split
	The Company’s board of directors and stockholders approved a 2‑for‑3 reverse split of its common stock and its Series A convertible preferred stock, or preferred stock, which was effected on May 2, 2014. All share data and per share data, and related information presented in the consolidated financial statements and accompanying notes have been retroactively adjusted, where applicable, to reflect the reverse stock split of its common stock and preferred stock.
	Use of Estimates
	The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the dates of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Assets and liabilities which are subject to judgment and use of estimates include sales allowances and allowances for doubtful accounts, the fair value of assets and liabilities assumed in business combinations, the recoverability of goodwill and long‑lived assets, valuation allowances with respect to deferred tax assets, useful lives associated with property and equipment and intangible assets, contingencies, and the valuation and assumptions underlying stock‑based compensation and other equity instruments. On an ongoing basis, the Company evaluates its estimates compared to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities.
	Segments
	The Company has one operating segment. The Company’s Chief Operating Decision Makers (“CODM”), the Chief Executive Officer, the President and the Chief Financial Officer, manage the Company’s operations based on consolidated financial information for purposes of evaluating financial performance and allocating resources.
	All of the Company’s principal operations, decision‑making functions and assets are located in the United States.
	Recent Accounting Pronouncements
	Under the Jumpstart Our Business Startups Act (“JOBS Act”), the Company meets the definition of an emerging growth company. The Company has irrevocably elected to opt out of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act.
	In June 2014, the Financial Accounting Standards Board (“FASB”) issued new guidance related to stock compensation. The new standard requires that a performance target that affects vesting, and that could be achieved after the requisite service period, be treated as a performance condition. As such, the performance target should not be reflected in estimating the grant date fair value of the award. This update further clarifies that compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the requisite service has already been rendered. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 and can be applied either prospectively or retrospectively to all awards outstanding as of the beginning of the earliest annual period presented as an adjustment to opening retained earnings. The adoption of this guidance is not expected to have an impact on the Company’s consolidated financial statements.
	In May 2014, the FASB issued guidance related to revenue from contracts with customers. Under this guidance, revenue is recognized when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The updated standard will replace all existing revenue recognition guidance under GAAP when it becomes effective and permits the use of either the retrospective or cumulative effect transition method. Early adoption is not permitted. The guidance is effective for annual and interim reporting periods beginning after December 15, 2016. The Company is evaluating the impact of adopting this guidance on its consolidated financial statements.
	In April 2014, the FASB issued an accounting standards update clarifying the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. This standards update is effective for fiscal years beginning on or after December 15, 2014. Early adoption is permitted but only for disposals that have not been reported in financial statements previously issued. The adoption of this guidance is not expected to have any impact on the Company’s consolidated financial statements.

Fair_Value_Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2014
Fair Value Measurements	'
Fair Value Measurements	'
	3.Fair Value Measurements
	Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date.
	Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy is based on the following three levels of inputs, of which the first two are considered observable and the last is considered unobservable:
		·		Level 1 — Unadjusted quoted prices in active markets for identical assets or liabilities.
		·		Level 2 — Inputs other than Level 1 that are observable, either directly or indirectly; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
		·		Level 3 — Unobservable inputs that are supported by little or no market activity, which requires the Company to develop its own assumptions.
	The carrying amounts of cash equivalents, restricted cash, accounts receivable, prepaid and other current assets, accounts payable, and accrued expenses approximate fair value because of the short maturity of these items.
	The following table summarizes the Company’s financial assets and liabilities measured at fair value on a recurring basis at June 30, 2014 and December 31, 2013 by level within the fair value hierarchy. Financial assets and financial liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands):
			At June 30, 2014								At December 31, 2013
									Total Fair								Total Fair
			Level 1		Level 2		Level 3		Value		Level 1		Level 2		Level 3		Value
	Cash equivalents		$	98,929	$	—	$	—	$	98,929	$	7,726	$	—	$	—	$	7,726
	Total Assets		$	98,929	$	—	$	—	$	98,929	$	7,726	$	—	$	—	$	7,726

Property_and_Equipment_net

Property and Equipment, net	6 Months Ended
	Jun. 30, 2014
Property and Equipment, net	'
Property and Equipment, net	'
	4.Property and Equipment, net
	Property and equipment consisted of the following at June 30, 2014 and December 31, 2013 (in thousands):
		June 30,		December 31,
		2014		2013
	Computer equipment and internally developed software	$	26,757	$	22,517
	Furniture and fixtures		2,048		1,654
	Leasehold improvements		3,050		2,921
			31,855		27,092
	Less: Accumulated depreciation		-14,751		-11,854
	Total property and equipment, net	$	17,104	$	15,238
	Total depreciation and amortization expense of property and equipment was $1.9 million and $1.7 million for the three months ended June 30, 2014 and 2013, respectively. Total depreciation and amortization expense of property and equipment was $3.9 million and $3.4 million for the six months ended June 30, 2014 and 2013, respectively.
	Amortization of internal use capitalized software development costs was $1.2 million and $1.0 million for the three months ended June 30, 2014 and 2013, respectively.  Amortization of internal use capitalized software development costs was $2.3 million and $2.0 million for the six months ended June 30, 2014 and 2013, respectively.

Intangible_Assets

Intangible Assets	6 Months Ended
	Jun. 30, 2014
Intangible Assets	'
Intangible Assets	'
	5.Intangible Assets
	Intangible assets consisted of the following at June 30, 2014 and December 31, 2013 (in thousands):
		At June 30, 2014
		Gross Carrying		Accumulated		Net Carrying
		Value		amortization		Value
	Acquired technology and domain name	$	31,075	$	-9,260	$	21,815
	Customer relationships		6,300		-2,112		4,188
	Tradenames		4,900		-898		4,002
	Total	$	42,275	$	-12,270	$	30,005
		At December 31, 2013
		Gross Carrying		Accumulated		Net Carrying
		Value		amortization		Value
	Acquired technology and domain name	$	30,725	$	-7,624	$	23,101
	Customer relationships		6,300		-1,732		4,568
	Trade names		4,970		-805		4,165
	Total	$	41,995	$	-10,161	$	31,834
	For the six months ended June 30, 2014, the increase in the gross intangible assets balance was due to the purchase of the True.com domain name of $0.4 million.
	Amortization expense for the three months ended June 30, 2014 and 2013 was $1.1 million and $1.1 million, respectively.  For the six months ended June 30, 2014 and 2013, amortization expense was $2.2 million and $2.2 million, respectively.
	Amortization expense with respect to intangible assets at June 30, 2014 for each of the five years through December 31, 2018 and thereafter is as follows (in thousands):
	Six months ending December 31, 2014	$	2,072
	2015		4,129
	2016		4,038
	2017		3,859
	2018		3,858
	Thereafter		12,049
	Total amortization expense	$	30,005

Credit_Facility

Credit Facility	6 Months Ended
	Jun. 30, 2014
Credit Facility	'
Credit Facility	'
	6.Credit Facility
	The Company had previously entered into a credit facility with a financial institution that provided for advances under a formula-based revolving line of credit that expired on June 13, 2014. The maximum amount available under the line of credit was $12.0 million, of which $4.8 million was outstanding at December 31, 2013. The Company repaid all amounts outstanding in May 2014.
	In August 2014, the Company amended its credit facility (the “Credit Facility”), effective as of June 13, 2014, with the same financial institution that provides for advances of up to $25.0 million under a formula-based revolving line of credit that expires on June 13, 2016. The Credit Facility provides advances equal to 80% of eligible accounts receivable (the “Borrowing Base”), and is subject to sub‑limits, as defined, for letters of credit, foreign exchange, and cash management services provided by the financial institution.
	The Credit Facility bears interest at either (i) the London Interbank Offered Rate (“LIBOR”) plus 2.25% if net cash, as defined, is greater than or equal to $1.00 (ii) LIBOR plus 3.75% if net cash, as defined, is less than $1.00, (iii) the bank’s prime rate if net cash is greater than or equal to $1.00, or (iv) the bank’s prime rate plus 1.5% if net cash is less than $1.00. The Company can select whether its borrowings will fall under a LIBOR or prime rate interest rate, and will also pay an annual commitment fee of $50,000 to the financial institution.
	The Credit Facility requires the Company to maintain an adjusted quick ratio of at least 1.5 to 1 on the last day of each month during periods when the Company has drawn down at least 75% of the lesser of the Borrowing Base or $25.0 million. The Credit Facility restricts the Company’s ability to pay dividends. In the event the Company is in default of the Credit Facility or other indebtedness with other third parties, or have judgments or liens that may have a material adverse effect on the Company’s business, the financial institution reserves the right to accelerate the maturity of all outstanding debt associated with the Credit Facility.

Commitments_and_Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2014
Commitment and Contingencies	'
Commitments and Contingencies	'
	7.Commitments and Contingencies
	Operating Leases
	At June 30, 2014, the Company had various non‑cancellable operating leases related to the Company’s equipment and office facilities which expire through 2024. Additionally, in July 2014, the Company entered into a new facility lease in Santa Monica that will increase its total future minimum lease commitments over the next fifteen years, beginning in January 2015, by $36.3 million.
	At June 30, 2014 and including the new facility lease executed in July 2014, future minimum payments for obligations under non‑cancellable operating leases are as follows (in thousands):
	Six months ending December 31, 2014	$	1,337
	2015		5,149
	2016		5,922
	2017		5,201
	2018		5,530
	Thereafter		37,008
	Total minimum lease payments	$	60,147
	The Company recorded rent expense of $0.7 million and $0.7 million for the three months ended June 30, 2014 and 2013, respectively. For the six months ended June 30, 2014 and 2013, total rent expense was $1.3 million and $1.3 million, respectively.
	In connection with the facility lease executed in July 2014, the Company was required to obtain an irrevocable standby letter of credit, in the amount of $3.5 million for the benefit of its landlord. Beginning October 1, 2019 through October 1, 2025, the letter of credit is subject to an annual reduction to as little as $1.2 million.
	Automotive Website Program Partnership Agreement
	As part of the Company’s prior partnership agreement with Yahoo!, Inc. or Yahoo! in June 2012, the Company was required to issue a stand‑by letter of credit in the amount of $10.0 million. The Company is required to maintain restricted cash equal to the amount of the stand‑by letter of credit. In April 2013, the stand‑by letter of credit was reduced to $2.0 million and will be reduced to zero on September 29, 2014, the expiration date of the stand-by letter of credit agreement.
	Legal Proceedings
	From time to time, the Company may become subject to legal proceedings, claims and litigation arising in the ordinary course of business. The Company is not currently a party to any material legal proceedings, nor is the Company aware of any pending or threatened litigation that would have a material adverse effect on the Company’s business, operating results, cash flows or financial condition should such litigation be resolved unfavorably.
	Employment Contracts
	The Company has entered into employment contracts with certain executives of the Company. Employment under these contracts is at‑will employment. However, under the provisions of the contracts, the Company would incur severance obligations up to twelve months of the executive’s annual base salary for certain events such as involuntary terminations. In addition, upon the consummation of the IPO, certain executives earned liquidity bonuses totaling $2.6 million, which were recorded in sales and marketing and general and administrative expenses in the Company’s consolidated statements of comprehensive loss during the three and six months ended June 30, 2014.
	Indemnifications
	In the ordinary course of business, the Company may provide indemnifications of varying scope and terms to customers, vendors, lessors, investors, directors, officers, employees and other parties with respect to certain matters, including, but not limited to, losses arising out of the Company’s breach of such agreements, services to be provided by the Company, or from intellectual property infringement claims made by third‑parties. These indemnifications may survive termination of the underlying agreement and the maximum potential amount of future payments the Company could be required to make under these indemnification provisions may not be subject to maximum loss provisions. The maximum potential amount of future payments the Company could be required to make under these indemnification provisions is indeterminable. To date, there has not been a material claim paid by the Company, nor has the Company been sued in connection with these indemnification arrangements. At June 30, 2014 and December 31, 2013, the Company has not accrued a liability for these guarantees, because the likelihood of incurring a payment obligation, if any, in connection with these guarantees is not probable or reasonably estimable.
	Marketing Sponsorships
	The Company has entered into marketing sponsorship agreements with professional sporting affiliations. At June 30, 2014, the sponsorship agreements require future commitments of $0.2 million payable during the remainder of 2014 and $0.8 million payable in 2015.

Stockholders_Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2014
Stockholders' Equity	'
Stockholders' Equity	'
	8.Stockholders’ Equity
	In November 2013, the Company sold an aggregate of 2,857,143 shares of Series A preferred stock and warrants to purchase 666,666 shares of common stock at an exercise price of $15.00 per share to Vulcan Capital Growth Equity LLC (“Vulcan”), in a private placement at a price of $10.50 per share, for an aggregate purchase price of $30.0 million.
	Immediately prior to the completion of the Company’s IPO, all of the outstanding shares of the Series A preferred stock automatically converted into 2,857,143 shares of common stock on a one-to-one basis.
	Warrants Issued to USAA
	Beginning in March 2009, the Company entered into various agreements with USAA, an affinity partner and significant stockholder of the Company, which agreements provided for the issuance of warrants to purchase shares of the Company’s common stock if minimum performance milestones, based on the level of vehicle sales, were achieved. The warrants issued to USAA were in exchange for marketing services performed by USAA under the Company’s affinity group marketing program. The purpose of the marketing services performed by USAA is to create awareness and to acquire traffic for, and drive users to, the Company’s auto buying platforms. Warrants issued to USAA are recorded as sales and marketing expenses in the Company’s consolidated statements of comprehensive loss.
	In May 2014, the Company and USAA agreed to an extension of the affinity group marketing agreement with USAA. As part of the agreement, the Company issued to USAA a warrant to purchase 1,458,979 shares of the Company’s common stock, which will be exercisable in two tranches. The first tranche of 392,313 shares has an exercise price of $7.95 per share and the second tranche of 1,066,666 shares has an exercise price of $15.00 per share. The warrant becomes exercisable based on the achievement of performance milestones based on the level of vehicle sales of USAA members through the Company’s auto buying platforms. The warrant terminates on the earlier of the eighth anniversary of the date of issuance, the first anniversary of the termination of the USAA car-buying program or the date on which the Company no longer operates the USAA car-buying program. In addition, the agreement provides for the Company to spend marketing program funds with the actual level of marketing spend to be mutually agreed upon by USAA and the Company, subject to limits based on the number of actual vehicle sales generated through the affinity marketing program (Note 12).
	Warrants to purchase 3,265,168 shares of the Company’s common stock earned from agreements entered into prior to May 2014 were exercised in connection with the Company’s IPO in May 2014 for an aggregate purchase price of $9.5 million.
	For the three months ended June 30, 2014 and 2013, the Company recognized expense of $1.6 million and $0.3 million related to warrants to purchase 201,056 shares and 120,495 shares of common stock that have been earned and are vested, respectively. For the six months ended June 30, 2014 and 2013, the Company recognized expense of $1.9 million and $0.4 million related to warrants to purchase 340,558 shares and 154,294 shares of common stock that have been earned and are vested, respectively.
	Warrants Issued to Third Party Marketing Firm
	On February 25, 2011, the Company entered into a media and marketing services agreement with a direct marketing firm. Under the arrangement, the marketing firm will provide media purchasing, production, advertising, and marketing services in connection with the advertising and marketing of the Company’s services. In addition to cash consideration, the Company agreed to issue a warrant to the marketing firm to purchase up to 1,433,333 shares of the Company’s common stock at a price of $6.02 per share. All shares under the warrant agreement will become exercisable in accordance with the vesting schedule or termination by either party pursuant to the agreement in the event of a default, as defined. The warrant expires eight years from the issuance date and as of June 30, 2014, all warrants have been earned and issued to the marketing firm.
	For the three months ended June 30, 2014 and 2013, the Company recognized expense of $0.4 million and $0.5 million related to 104,992 and 134,400 warrants earned, respectively. For the six months ended June 30, 2014 and 2013, the Company recognized expense of $2.3 million and $0.7 million related to 343,665 and 268,800 warrants earned, respectively. The expense has been reflected as sales and marketing expense on the accompanying consolidated statements of comprehensive loss.
	Warrants Issued to Financial Institution
	On June 13, 2012, in connection with the execution of the amended credit facility (Note 6), the Company entered into a warrant agreement with a financial institution to purchase 26,666 shares of the Company’s common stock, at an exercise price of $11.51 per share if the Company draws on the credit facility at any time after the issuance date. If at any time, the advances to the Company in aggregate principal amount are greater than $4.0 million, the number of shares increases to 66,666. The warrants are immediately vested upon drawing on the line and expire on the earlier of June 13, 2022, or an acquisition of the Company consisting solely of cash and or marketable securities. On June 13, 2013 the Company entered into a second amendment and restated loan and security agreement which reduced the exercise price of the warrants to $7.92. On August 29, 2013, the Company drew down $5.0 million on the credit facility, triggering the issuance of warrants to purchase 66,666 shares of TrueCar’s common stock at an exercise of $7.92 per share. In June 2014, warrants to purchase 66,666 shares of the Company’s common stock were exercised through a net settlement election. The Company issued 27,526 shares of its common stock to the financial institution.
	Warrants Issued to Vulcan
	In November 2013, in the Vulcan private placement, the Company issued to Vulcan a warrant to purchase 666,666 shares of its common stock at an exercise price of $15.00 per share. The warrant is immediately exercisable and expires in November 2015.
	Warrants Issued to Service Provider
	In May 2014, the Company entered into a consulting agreement with an individual to provide marketing services to the Company. The Company agreed to issue a warrant to the individual to purchase up to 333,333 shares of the Company’s common stock at a price of $12.81 per share. All shares under the warrant agreement will become exercisable in accordance with the vesting schedule over a four year period. The warrant expires five years from the issuance date or, if earlier, twelve months following the termination of the consulting agreement.
	For the three and six months ended June 30, 2014, the Company recognized expense of $0.4 million, which has been reflected as sales and marketing expense on the accompanying consolidated statements of comprehensive loss. At June 30, 2014, warrants earned under this agreement totaled 33,333 shares.

Stockbased_Awards

Stock-based Awards	6 Months Ended
	Jun. 30, 2014
Stock-based Awards	'
Stock-based Awards	'
	9.Stock‑based Awards
	Stock Options
	A summary of the Company’s stock option activity under the 2005 and 2008 plans for the six months ended June 30, 2014 is as follows (unaudited):
							Weighted-
				Weighted-			Average
				Average			Remaining
		Number of		Exercise			Contract Life
		Options		Price			(in years)
	Outstanding at December 31, 2013	18,363,144		$	4.89		7.17
	Granted	10,545,647		$	15.86
	Exercised	-1,741,058		$	1.01
	Canceled/forfeited	-502,943		$	9.36
	Outstanding at June 30, 2014	26,664,790		$	9.40		7.98
	Vested and expected to vest at June 30, 2014	25,236,587		$	9.32		7.91
	Exercisable at June 30, 2014	18,884,427		$	8.72		7.39
	At June 30, 2014, total remaining stock‑based compensation expense for unvested stock option awards was $73.3 million, which is expected to be recognized over a weighted‑average period of 3.1 years.
	Restricted Stock Units and Awards
	Activity in connection with the restricted stock units is as follows for the six months ended June 30, 2014:
				Weighted-
				Average
		Number of		Grant Date
		Shares		Fair Value
	Non-vested — December 31, 2013	—		$	—
	Granted	720,146		$	10.04
	Vested	—		$	—
	Canceled/forfeited	-6,607		$	9.63
	Non-vested — June 30, 2014	713,539		$	10.04
	At June 30, 2014, total remaining stock‑based compensation expense for non-vested restricted stock units amounted to $5.0 million, which is expected to be recognized over a weighted-average period of 2.6 years.
	In addition, previously issued restricted stock awards of 27,778 shares with a weighted average grant date fair value of $3.56 were non-vested at June 30, 2014.
	Stock‑based Compensation Cost
	The Company recorded stock‑based compensation cost relating to stock options and restricted stock awards in the following categories on the accompanying consolidated statements of comprehensive loss (in thousands):
		Three Months Ended						Six Months Ended
		June 30,						June 30,
		2014			2013			2014		2013
	Cost of revenue	$	113		$	28		$	163	$	53
	Sales and marketing		1,307			580			2,344		1,104
	Technology and development		1,156			443			1,865		783
	General and administrative		4,819			992			7,168		1,676
	Total stock-based compensation expense		7,395			2,043			11,540		3,616
	Amount capitalized to internal software use		321			145			614		251
	Total stock-based compensation cost	$	7,716		$	2,188		$	12,154	$	3,867

Income_Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2014
Income Taxes	'
Income taxes	'
	10.Income Taxes
	In determining quarterly provisions for income taxes, the Company uses the annual estimated effective tax rate applied to the actual year‑to‑date loss. The Company’s annual estimated effective tax rate differs from the statutory rate primarily as a result of state taxes, tax amortization of goodwill and changes in the Company’s valuation allowance. For the three months ended June 30, 2014 and 2013, the Company recorded $0.1 million and $0.1 million in income tax expense, respectively. For the six months ended June 30, 2014 and 2013, the Company recorded $0.3 million and $0.3 million in income tax expense, respectively.
	There were no material changes to the Company’s unrecognized tax benefits in the three and six months ended June 30, 2014, and the Company does not expect to have any significant changes to unrecognized tax benefits through the end of the fiscal year. The Company is currently under audit examination by the Internal Revenue Service for the 2011 and 2012 tax years, and under a state audit for the 2010 through the 2012 tax years.

Net_Loss_Per_Share

Net Loss Per Share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share Attributable to Common Stockholders	'
Earnings Per Share Attributable to Common Stockholders	'
	11.Net Loss Per Share
	The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share data):
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014			2013		2014		2013
	Net loss	$	-15,034		$	-3,802	$	-24,955	$	-12,825
	Weighted-average common shares outstanding		67,784			58,313		63,962		57,231
	Net loss per share - basic and diluted	$	-0.22		$	-0.07	$	-0.39	$	-0.22
	The following table presents the number of anti‑dilutive shares excluded from the calculation of diluted net loss per share at June 30, 2014 and 2013 (in thousands):
		June 30,
		2014		2013
	Options to purchase common stock	26,665		16,078
	Common stock warrants	3,981		5,251
	Conversion of convertible preferred stock	—		2,857
	Unvested restricted stock awards	741		95
	Contingently redeemable shares	—		189
	Total shares excluded from net loss per share	31,387		24,470

Related_Party_Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2014
Related Party Transactions	'
Related Party Transactions	'
	12.Related Party Transactions
	Transactions with Stockholders
	In October 2011, as part of the acquisition of ALG, the Company entered into various data licensing and transition services agreements with Dealertrack, a former significant stockholder of the Company. In the first quarter of 2014, Dealertrack divested its holdings in the Company and was no longer a related party. Costs under these agreements included in cost of revenue for the three months ended June 30, 2013 was $0.6 million. Costs under these agreements included in cost of revenue for the six months ended June 30, 2014 and 2013 were $0.4 million and $1.2 million, respectively. Costs under these agreements included in sales and marketing expense for the three and six months ended June 30, 2013 were $0.1 million and $0.2 million, respectively. There were no costs recorded in sales and marketing expense for the six months ended June 30, 2014.  No amounts were due to Dealertrack at December 31, 2013.
	Notes Receivable from Related Parties
	From 2007 to 2011, the Company issued notes to executives of the Company totaling $4.1 million of which $2.9 million were exchanged for cash and $1.2 million were in consideration for the purchase of common stock. The notes bear interest at rates between 1.2% and 6.0%. Principal and interest payments are due at maturity. The loans have maturity dates ranging from 2011 to 2016, and were primarily repaid in full by February 2014, with the exception of $0.3 million which has been partially reserved for by the Company, and the Company is pursuing collection.
	In the three months ended June 30, 2014, the Company advanced $60,000 to an employee. The note is due on December 31, 2014 at an interest rate of 3.5%. At June 30, 2014, the note receivable of $60,000 remained outstanding.
	Service Provider
	Beginning in October 2013, an employee of the Company is an officer of a firm that provides marketing services to the Company. For the three and six months ended June 30, 2014, the Company recorded sales and marketing expense of $3.6 million and $4.8 million, respectively. At June 30, 2014, the Company recorded $1.9 million in prepaid expenses related to this marketing firm. There was no prepaid expense relating to this marketing firm at December 31, 2013. Additionally, the Company has amounts due to this marketing firm at June 30, 2014 and December 31, 2013 of $0.2 million and $0.3 million, respectively.
	Transactions with USAA
	USAA is the Company’s largest stockholder and most significant affinity marketing partner. The Company has entered into arrangements with USAA to operate their Auto Buying Program. The Company has amounts due from USAA at June 30, 2014 and December 31, 2013 of $0.8 million and $0.4 million, respectively. In addition, the Company has amounts due to USAA at June 30, 2014 and December 31, 2013 of $1.1 million and $1.2 million, respectively. The Company recorded sales and marketing expense of $3.2 million and $1.9 million for the three months ended June 30, 2014 and 2013, respectively, related to service arrangements entered into with USAA, including non-cash expense associated with warrants to purchase shares of common stock (Note 8). For the six months ended June 30, 2014 and 2013, the Company recorded sales and marketing expense of $6.2 million and $3.2 million, respectively.

Revenue_Information

Revenue Information	6 Months Ended
	Jun. 30, 2014
Revenue Information	'
Revenue Information	'
	13.Revenue Information
	The CODM reviews separate revenue information for its Transaction and Data and Other service offerings. All other financial information is reviewed by the CODM on a consolidated basis. The following table presents the Company’s revenue categories during the periods presented (in thousands):
		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2014		2013		2014		2013
	Transaction revenue	$	46,127	$	27,436	$	86,119	$	48,959
	Data and other revenue		4,370		3,787		8,308		7,307
	Total revenues	$	50,497	$	31,223	$	94,427	$	56,266

Subsequent_Events

Subsequent Events	6 Months Ended
	Jun. 30, 2014
Subsequent Events	'
Subsequent Events	'
	14.     Subsequent Events
	In July 2014, the Company entered into an office building lease (the “Lease”) for approximately 33,700 square feet commencing on January 1, 2015 (the “Lease Commencement Date”). Under the terms of the agreement, approximately 16,700 square feet will be leased for 15 years from the Lease Commencement Date. Additional expansion spaces totaling approximately 17,000 square feet will be leased for 10 years from the Lease Commencement Date. The Company has the option to extend the Lease for a total term of twenty years. Annual base rent for fiscal year 2015 will be approximately $2.2 million, and the cumulative base rent for the initial lease term will be approximately $36.3 million. In conjunction with the Lease, the Company was required to obtain an irrevocable standby letter of credit in the amount of $3.5 million for the benefit of the landlord. Beginning October 1, 2019 through October 1, 2025, the letter of credit is subject to an annual reduction to as little as $1.2 million.
	In August 2014, the Company amended its credit facility. Refer to Note 6 herein for further details of the amended credit facility.
	In August 2014, the Company entered into an agreement to purchase a perpetual software subscription license totaling $4.9 million, which is expected to be fully paid in the third quarter of 2014. In addition to the software license agreement, the Company purchased a support services package for a three year term totaling $2.4 million payable quarterly.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2014
Summary of Significant Accounting Policies	'
Basis of Presentation	'
	Basis of Presentation
	The Company’s unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) for quarterly reports on Form 10–Q and Article 10-01 of Regulation S-X. Accordingly, some information and footnote disclosures required by GAAP for complete financial statements have been condensed or omitted pursuant to such rules and regulations. In the opinion of the Company’s management, the accompanying unaudited condensed consolidated financial statements and notes have been prepared on the same basis as the audited consolidated financial statements for the year ended December 31, 2013 and include all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the interim periods presented.
	The condensed consolidated balance sheet at December 31, 2013 has been derived from the audited financial statements at that date, but does not include all of the disclosures required by GAAP. The accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s prospectus filed with the SEC on May 16, 2014 pursuant to Rule 424(b) of the Securities Act of 1933, as amended.
	Reclassification
	Certain prior year amounts have been reclassified for consistency with the current period presentation. These reclassifications were not material to the financial statements.
Reverse Stock Split	'
	Reverse Stock Split
	The Company’s board of directors and stockholders approved a 2‑for‑3 reverse split of its common stock and its Series A convertible preferred stock, or preferred stock, which was effected on May 2, 2014. All share data and per share data, and related information presented in the consolidated financial statements and accompanying notes have been retroactively adjusted, where applicable, to reflect the reverse stock split of its common stock and preferred stock.
Use of Estimates	'
	Use of Estimates
	The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the dates of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Assets and liabilities which are subject to judgment and use of estimates include sales allowances and allowances for doubtful accounts, the fair value of assets and liabilities assumed in business combinations, the recoverability of goodwill and long‑lived assets, valuation allowances with respect to deferred tax assets, useful lives associated with property and equipment and intangible assets, contingencies, and the valuation and assumptions underlying stock‑based compensation and other equity instruments. On an ongoing basis, the Company evaluates its estimates compared to historical experience and trends, which form the basis for making judgments about the carrying value of assets and liabilities.
Segments	'
	Segments
	The Company has one operating segment. The Company’s Chief Operating Decision Makers (“CODM”), the Chief Executive Officer, the President and the Chief Financial Officer, manage the Company’s operations based on consolidated financial information for purposes of evaluating financial performance and allocating resources.
	All of the Company’s principal operations, decision‑making functions and assets are located in the United States.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	Under the Jumpstart Our Business Startups Act (“JOBS Act”), the Company meets the definition of an emerging growth company. The Company has irrevocably elected to opt out of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act.
	In June 2014, the Financial Accounting Standards Board (“FASB”) issued new guidance related to stock compensation. The new standard requires that a performance target that affects vesting, and that could be achieved after the requisite service period, be treated as a performance condition. As such, the performance target should not be reflected in estimating the grant date fair value of the award. This update further clarifies that compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the requisite service has already been rendered. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 and can be applied either prospectively or retrospectively to all awards outstanding as of the beginning of the earliest annual period presented as an adjustment to opening retained earnings. The adoption of this guidance is not expected to have an impact on the Company’s consolidated financial statements.
	In May 2014, the FASB issued guidance related to revenue from contracts with customers. Under this guidance, revenue is recognized when promised goods or services are transferred to customers in an amount that reflects the consideration that is expected to be received for those goods or services. The updated standard will replace all existing revenue recognition guidance under GAAP when it becomes effective and permits the use of either the retrospective or cumulative effect transition method. Early adoption is not permitted. The guidance is effective for annual and interim reporting periods beginning after December 15, 2016. The Company is evaluating the impact of adopting this guidance on its consolidated financial statements.
	In April 2014, the FASB issued an accounting standards update clarifying the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. This standards update is effective for fiscal years beginning on or after December 15, 2014. Early adoption is permitted but only for disposals that have not been reported in financial statements previously issued. The adoption of this guidance is not expected to have any impact on the Company’s consolidated financial statements.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2014
Fair Value Measurements	'
Financial assets and liabilities measured at fair value on a recurring basis	'
		At June 30, 2014								At December 31, 2013
								Total Fair								Total Fair
		Level 1		Level 2		Level 3		Value		Level 1		Level 2		Level 3		Value
	Cash equivalents	$	98,929	$	—	$	—	$	98,929	$	7,726	$	—	$	—	$	7,726
	Total Assets	$	98,929	$	—	$	—	$	98,929	$	7,726	$	—	$	—	$	7,726

Property_and_Equipment_net_Tab

Property and Equipment, net (Tables)	6 Months Ended
	Jun. 30, 2014
Property and Equipment, net	'
Schedule of property and equipment, net	'
		June 30,		December 31,
		2014		2013
	Computer equipment and internally developed software	$	26,757	$	22,517
	Furniture and fixtures		2,048		1,654
	Leasehold improvements		3,050		2,921
			31,855		27,092
	Less: Accumulated depreciation		-14,751		-11,854
	Total property and equipment, net	$	17,104	$	15,238

Intangible_Assets_Tables

Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2014
Intangible Assets	'
Schedule of intangible assets	'
		At June 30, 2014
		Gross Carrying		Accumulated		Net Carrying
		Value		amortization		Value
	Acquired technology and domain name	$	31,075	$	-9,260	$	21,815
	Customer relationships		6,300		-2,112		4,188
	Tradenames		4,900		-898		4,002
	Total	$	42,275	$	-12,270	$	30,005
		At December 31, 2013
		Gross Carrying		Accumulated		Net Carrying
		Value		amortization		Value
	Acquired technology and domain name	$	30,725	$	-7,624	$	23,101
	Customer relationships		6,300		-1,732		4,568
	Trade names		4,970		-805		4,165
	Total	$	41,995	$	-10,161	$	31,834
Amortization expense with respect to intangible assets at June 30, 2014 for each of the five years through December 31, 2018	'
	Six months ending December 31, 2014	$	2,072
	2015		4,129
	2016		4,038
	2017		3,859
	2018		3,858
	Thereafter		12,049
	Total amortization expense	$	30,005

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2014
Commitment and Contingencies	'
Future minimum payments for obligations under non-cancellable operating leases	'
	Six months ending December 31, 2014	$	1,337
	2015		5,149
	2016		5,922
	2017		5,201
	2018		5,530
	Thereafter		37,008
	Total minimum lease payments	$	60,147

Stockbased_Awards_Tables

Stock-based Awards (Tables)	6 Months Ended
	Jun. 30, 2014
Stock-based Awards	'
Summary of stock option activity	'
							Weighted-
				Weighted-			Average
				Average			Remaining
		Number of		Exercise			Contract Life
		Options		Price			(in years)
	Outstanding at December 31, 2013	18,363,144		$	4.89		7.17
	Granted	10,545,647		$	15.86
	Exercised	-1,741,058		$	1.01
	Canceled/forfeited	-502,943		$	9.36
	Outstanding at June 30, 2014	26,664,790		$	9.40		7.98
	Vested and expected to vest at June 30, 2014	25,236,587		$	9.32		7.91
	Exercisable at June 30, 2014	18,884,427		$	8.72		7.39
Summary of restricted stock unit activity	'
				Weighted-
				Average
		Number of		Grant Date
		Shares		Fair Value
	Non-vested — December 31, 2013	—		$	—
	Granted	720,146		$	10.04
	Vested	—		$	—
	Canceled/forfeited	-6,607		$	9.63
	Non-vested — June 30, 2014	713,539		$	10.04
Stock-based compensation cost categories	'
		Three Months Ended						Six Months Ended
		June 30,						June 30,
		2014			2013			2014		2013
	Cost of revenue	$	113		$	28		$	163	$	53
	Sales and marketing		1,307			580			2,344		1,104
	Technology and development		1,156			443			1,865		783
	General and administrative		4,819			992			7,168		1,676
	Total stock-based compensation expense		7,395			2,043			11,540		3,616
	Amount capitalized to internal software use		321			145			614		251
	Total stock-based compensation cost	$	7,716		$	2,188		$	12,154	$	3,867

Net_Loss_Per_Share_Tables

Net Loss Per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share Attributable to Common Stockholders	'
Computation of basic and diluted net loss per share attributable to common stockholders	'
		Three Months Ended					Six Months Ended
		June 30,					June 30,
		2014			2013		2014		2013
	Net loss	$	-15,034		$	-3,802	$	-24,955	$	-12,825
	Weighted-average common shares outstanding		67,784			58,313		63,962		57,231
	Net loss per share - basic and diluted	$	-0.22		$	-0.07	$	-0.39	$	-0.22
Anti-dilutive shares excluded from the calculation of diluted net loss per share	'
	:
		June 30,
		2014		2013
	Options to purchase common stock	26,665		16,078
	Common stock warrants	3,981		5,251
	Conversion of convertible preferred stock	—		2,857
	Unvested restricted stock awards	741		95
	Contingently redeemable shares	—		189
	Total shares excluded from net loss per share	31,387		24,470

Revenue_Information_Tables

Revenue Information (Tables)	6 Months Ended
	Jun. 30, 2014
Revenue Information	'
Revenue information for service offerings	'
	The following table presents the Company’s revenue categories during the periods presented (in thousands):
		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2014		2013		2014		2013
	Transaction revenue	$	46,127	$	27,436	$	86,119	$	48,959
	Data and other revenue		4,370		3,787		8,308		7,307
	Total revenues	$	50,497	$	31,223	$	94,427	$	56,266

Organization_and_Nature_of_Bus1

Organization and Nature of Business (Detail) (Common stock, USD $)	1 Months Ended	6 Months Ended
In Millions, except Share data, unless otherwise specified	31-May-14	Jun. 30, 2014
Initial Public Offering	'	'
Shares sold	'	8,941,250
Shares of common stock issued for conversion of Series A preferred	2,857,143	2,857,143
IPO	'	'
Initial Public Offering	'	'
Shares sold	8,941,250	'
Public offering price per share	9	'
Net proceeds from sale of shares in IPO	69.2	'
Over-allotment option	'	'
Initial Public Offering	'	'
Shares sold	1,166,250	'

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details)	6 Months Ended	0 Months Ended
	Jun. 30, 2014	2-May-14
	segment	Common stock
		Convertible preferred stock
Reverse Stock Split	'	'
Ratio for reverse stock split	'	0.6667
Segments	'	'
Number of operating segments	1	'

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (Recurring, Estimate of Fair Value, USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Measurements	'	'
Cash equivalents	$98,929	$7,726
Total Assets	98,929	7,726
Level 1	'	'
Fair Value Measurements	'	'
Cash equivalents	98,929	7,726
Total Assets	$98,929	$7,726

Property_and_Equipment_net_Det

Property and Equipment, net (Details) (USD $)

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Property and equipment

Property and equipment

Property and equipment

Property and equipment

Computer equipment and internally developed software

Computer equipment and internally developed software

Furniture and Fixtures

Furniture and Fixtures

Leasehold Improvements

Leasehold Improvements

Internally developed software

Internally developed software

Internally developed software

Internally developed software

Property and Equipment, net

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property and equipment, gross

$31,855,000

'

$27,092,000

'

'

'

'

$26,757,000

$22,517,000

$2,048,000

$1,654,000

$3,050,000

$2,921,000

'

'

'

'

Less: Accumulated depreciation

-14,751,000

'

-11,854,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total property and equipment, net

17,104,000

'

15,238,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Depreciation and amortization expense

5,875,000

5,609,000

'

1,900,000

1,700,000

3,900,000

3,400,000

'

'

'

'

'

'

'

'

'

'

Amortization

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,200,000

$1,000,000

$2,300,000

$2,000,000

Intangible_Assets_Details

Intangible Assets (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Intangible Assets	'	'	'	'	'
Gross Carrying Value	$42,275,000	'	$42,275,000	'	$41,995,000
Accumulated amortization	-12,270,000	'	-12,270,000	'	-10,161,000
Net Carrying Value	30,005,000	'	30,005,000	'	31,834,000
Intangible assets acquired	'	'	350,000	'	'
Amortization expense	1,100,000	1,100,000	2,200,000	2,200,000	'
Acquired technology and domain name	'	'	'	'	'
Intangible Assets	'	'	'	'	'
Gross Carrying Value	31,075,000	'	31,075,000	'	30,725,000
Accumulated amortization	-9,260,000	'	-9,260,000	'	-7,624,000
Net Carrying Value	21,815,000	'	21,815,000	'	23,101,000
Customer relationships	'	'	'	'	'
Intangible Assets	'	'	'	'	'
Gross Carrying Value	6,300,000	'	6,300,000	'	6,300,000
Accumulated amortization	-2,112,000	'	-2,112,000	'	-1,732,000
Net Carrying Value	4,188,000	'	4,188,000	'	4,568,000
Trade names	'	'	'	'	'
Intangible Assets	'	'	'	'	'
Gross Carrying Value	4,900,000	'	4,900,000	'	4,970,000
Accumulated amortization	-898,000	'	-898,000	'	-805,000
Net Carrying Value	4,002,000	'	4,002,000	'	4,165,000
Domain name	'	'	'	'	'
Intangible Assets	'	'	'	'	'
Intangible assets acquired	'	'	$400,000	'	'

Intangible_Assets_Future_Amort

Intangible Assets - Future Amortization Expense (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Amortization expense for each of the five years through December 31, 2018 and thereafter	'	'
Six months ending December 31, 2014	$2,072	'
2015	4,129	'
2016	4,038	'
2017	3,859	'
2018	3,858	'
Thereafter	12,049	'
Total amortization expense	$30,005	$31,834

Credit_Facility_Details

Credit Facility (Details) (USD $)	0 Months Ended
	Aug. 13, 2014	Jun. 13, 2014	Dec. 31, 2013
Credit Facility	'	'	'
Line of credit outstanding	'	'	$4,764,000
Revolving line of credit	'	'	'
Credit Facility	'	'	'
Maximum borrowing capacity	25,000,000	12,000,000	'
Line of credit outstanding	'	'	4,800,000
Percentage of eligible accounts receivable in which advances are granted under the credit facility	80.00%	'	'
Commitment fee	50,000	'	'
Quick ratio minimum	1.5	'	'
Minimum percentage used in calculation to determine the quick ratio debt covenant requirement	75.00%	'	'
Specified amount of draws against credit facility used to determine quick ratio debt covenant requirement	25,000,000	'	'
Revolving line of credit | LIBOR | Variable interest rate, net cash greater than or equal to $1.00	'	'	'
Credit Facility	'	'	'
Variable rate basis spread (as a percent)	2.25%	'	'
Revolving line of credit | LIBOR | Variable interest rate, net cash less than $1.00	'	'	'
Credit Facility	'	'	'
Variable rate basis spread (as a percent)	3.75%	'	'
Revolving line of credit | LIBOR | Minimum | Variable interest rate, net cash greater than or equal to $1.00	'	'	'
Credit Facility	'	'	'
Net cash threshold	1	'	'
Revolving line of credit | LIBOR | Maximum | Variable interest rate, net cash less than $1.00	'	'	'
Credit Facility	'	'	'
Net cash threshold	1	'	'
Revolving line of credit | Prime | Variable interest rate, net cash less than $1.00	'	'	'
Credit Facility	'	'	'
Variable rate basis spread (as a percent)	1.50%	'	'
Revolving line of credit | Prime | Minimum | Variable interest rate, net cash greater than or equal to $1.00	'	'	'
Credit Facility	'	'	'
Net cash threshold	1	'	'
Revolving line of credit | Prime | Maximum | Variable interest rate, net cash less than $1.00	'	'	'
Credit Facility	'	'	'
Net cash threshold	$1	'	'

Commitments_and_Contingencies_1

Commitments and Contingencies - Operating Leases (Details) (USD $)	3 Months Ended		6 Months Ended		1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jul. 31, 2014	Jul. 31, 2014
					Office Building Lease	Office Building Lease
						Letter of Credit
						October, 2019 to October, 2025
Operating Leases	'	'	'	'	'	'
Lease term	'	'	'	'	'15 years	'
Future minimum payments	'	'	'	'	'	'
Six months ending December 31, 2014	$1,337,000	'	$1,337,000	'	'	'
2015	5,149,000	'	5,149,000	'	'	'
2016	5,922,000	'	5,922,000	'	'	'
2017	5,201,000	'	5,201,000	'	'	'
2018	5,530,000	'	5,530,000	'	'	'
Thereafter	37,008,000	'	37,008,000	'	'	'
Total minimum lease payments	60,147,000	'	60,147,000	'	36,300,000	'
Rent expense and other operating lease disclosures	'	'	'	'	'	'
Rent expense	700,000	700,000	1,300,000	1,300,000	'	'
Irrevocable stand-by letter of credit	'	'	'	'	3,500,000	'
Minimum requirement for letter of credit that is subject to annual reduction	'	'	'	'	'	$1,200,000

Commitments_and_Contingencies_2

Commitments and Contingencies - Automotive Website Program (Details) (Yahoo Auto Buying Program, USD $)	Apr. 30, 2013	Jun. 29, 2012	Sep. 29, 2014
In Millions, unless otherwise specified			Scenario Forecast
Other commitments	'	'	'
Stand-by letter of credit to guarantee performance	$2	$10	$0

Commitments_and_Contingencies_3

Commitments and Contingencies - Other Contracts (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014
	Employment Contracts	Indemnification Guarantee	Indemnification Guarantee	Marketing Sponsorships
Other commitments	'	'	'	'
Maximum term of contract	'12 months	'	'	'
Liquidity bonus	$2.60	'	'	'
Accrual for indemnification guarantees	'	0	0	'
Amount payable during remainder of 2014	'	'	'	0.2
Amount payable in 2015	'	'	'	$0.80

Stockholders_Equity_Preferred_

Stockholders' Equity - Preferred Stock and Warrants (Details) (USD $)	1 Months Ended	6 Months Ended	1 Months Ended		1 Months Ended
In Millions, except Share data, unless otherwise specified	31-May-14	Jun. 30, 2014	Nov. 30, 2013	Nov. 30, 2013	31-May-14	Nov. 30, 2013
	Common stock	Common stock	Vulcan	Vulcan	Vulcan	Vulcan
				Common Stock Purchase Warrants	Convertible preferred stock	Convertible preferred stock
Class of Stock [Line Items]	'	'	'	'	'	'
Shares sold	'	8,941,250	'	'	'	2,857,143
Number of shares that may be purchased under warrant	'	'	'	666,666	'	'
Exercise price of warrants (in dollars per share)	'	'	'	$15	'	'
Private placement price per share	'	'	$10.50	'	'	'
Aggregate purchase price for preferred stock and warrants	'	'	$30	'	'	'
Initial conversion rate	'	'	'	'	1	'
Shares of common stock issued for conversion of Series A preferred	2,857,143	2,857,143	'	'	'	'

Stockholders_Equity_Warrants_I

Stockholders' Equity - Warrants Issued for Services (Details) (USD $)

6 Months Ended

0 Months Ended

1 Months Ended

0 Months Ended

3 Months Ended

6 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

1 Months Ended

0 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Aug. 29, 2013

Jun. 30, 2014

Aug. 29, 2013

Jun. 13, 2013

Feb. 25, 2011

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Feb. 25, 2011

31-May-14

Jun. 30, 2014

Jun. 30, 2014

31-May-14

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

31-May-14

31-May-14

31-May-14

Jun. 13, 2012

Jun. 13, 2012

Jun. 13, 2012

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Tranche One

Tranche Two

Draws on credit facility at any time after issuance date

Advances greater than $4.0 million at any time after issuance date

Advances greater than $4.0 million at any time after issuance date

Revolving line of credit

Revolving line of credit

Revolving line of credit

Revolving line of credit

Third Party Marketing Firm

Third Party Marketing Firm

Third Party Marketing Firm

Third Party Marketing Firm

Third Party Marketing Firm

Third Party Marketing Firm

Service Provider

Service Provider

Service Provider

USAA

USAA

USAA

USAA

USAA

USAA

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Common Stock Purchase Warrants

Affinity Group Marketing Agreement

USAA

USAA

Revolving line of credit

Revolving line of credit

Revolving line of credit

tranche

Affinity Group Marketing Agreement

Affinity Group Marketing Agreement

Warrants Issued for Services

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares that may be purchased under warrant

'

'

'

66,666

66,666

'

'

'

'

'

'

'

333,333

'

'

'

'

'

'

'

1,458,979

392,313

1,066,666

26,666

'

66,666

Exercise price of warrants (in dollars per share)

'

'

'

'

$7.92

$7.92

'

'

'

'

'

$6.02

$12.81

'

'

'

'

'

'

'

'

$7.95

$15

$11.51

'

'

Number of warrant tranches

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

'

'

Maximum number of shares under warrant agreement

'

'

'

'

'

'

1,433,333

'

'

'

'

'

'

'

'

3,265,168

'

'

'

'

'

'

'

'

'

'

Exercise of warrants

$9,461,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$9,500,000

'

'

'

'

'

'

'

'

'

'

Warrant expense

4,668,000

1,262,000

'

'

'

'

'

400,000

500,000

2,300,000

700,000

'

'

400,000

400,000

'

1,600,000

300,000

1,900,000

400,000

'

'

'

'

'

'

Number of shares under warrants that have been earned

'

'

'

'

'

'

'

104,992

134,400

343,665

268,800

'

'

'

33,333

'

201,056

120,495

340,558

154,294

'

'

'

'

'

'

Warrant vesting period

'

'

'

'

'

'

'

'

'

'

'

'

'4 years

'

'

'

'

'

'

'

'

'

'

'

'

'

Period of warrant

'

'

'

'

'

'

'8 years

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares issued for exercise of warrants

'

'

'

27,526

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Threshold borrowings under the credit facility for higher number of shares under warrant

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,000,000

'

Amount drawn on credit facility

'

'

$5,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Period of warrant from termination date of agreement

'

'

'

'

'

'

'

'

'

'

'

'

'12 months

'

'

'

'

'

'

'

'

'

'

'

'

'

Stockbased_Awards_Stock_Option

Stock-based Awards - Stock Options (Details) (Options to purchase common stock, USD $)	0 Months Ended	6 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2014
Options to purchase common stock	'	'
Number of Options	'	'
Outstanding (in shares)	'	18,363,144
Granted (in shares)	'	10,545,647
Exercised (in shares)	'	-1,741,058
Canceled/forfeited (in shares)	'	-502,943
Outstanding (in shares)	18,363,144	26,664,790
Vested and expected to vest (in shares)	'	25,236,587
Exercisable (in shares)	'	18,884,427
Weighted-Average Exercise Price	'	'
Outstanding (in dollars per share)	'	$4.89
Granted (in dollars per share)	'	$15.86
Exercised (in dollars per share)	'	$1.01
Canceled/forfeited (in dollars per share)	'	$9.36
Outstanding (in dollars per share)	$4.89	$9.40
Vested and expected to vest (in dollars per share)	'	$9.32
Exercisable (in dollars per share)	'	$8.72
Additional disclosures	'	'
Weighted Average Remaining Contractual Life, Outstanding	'7 years 2 months 1 day	'7 years 11 months 23 days
Weighted Average Remaining Contractual Life, Vested and expected to vest	'	'7 years 10 months 28 days
Weighted Average Remaining Contractual Life, Exercisable	'	'7 years 4 months 21 days
Remaining compensation expense for unvested awards	'	$73.30
Recognition period	'	'3 years 1 month 6 days

Stockbased_Awards_Restricted_S

Stock-based Awards - Restricted Stock (Details) (USD $)	6 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014
Restricted stock units	'
Number of Shares	'
Granted (in shares)	720,146
Canceled/forfeited (in shares)	-6,607
Non-vested (in shares)	713,539
Weighted-Average Grant Date Fair Value	'
Granted (in dollars per share)	$10.04
Canceled/forfeited (in dollars per share)	$9.63
Non-vested (in dollars per share)	$10.04
Additional disclosures	'
Remaining compensation expense for unvested awards	$5
Recognition period	'2 years 7 months 6 days
Restricted stock awards	'
Number of Shares	'
Non-vested (in shares)	27,778
Weighted-Average Grant Date Fair Value	'
Non-vested (in dollars per share)	$3.56

Stockbased_Awards_Stock_Compen

Stock-based Awards - Stock Compensation Costs (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Stock based Compensation Cost	'	'	'	'
Total stock-based compensation expense	$7,395	$2,043	$11,540	$3,616
Amount capitalized to internal software use	321	145	614	251
Total stock-based compensation cost	7,716	2,188	12,154	3,867
Cost of revenue	'	'	'	'
Stock based Compensation Cost	'	'	'	'
Total stock-based compensation expense	113	28	163	53
Sales and marketing	'	'	'	'
Stock based Compensation Cost	'	'	'	'
Total stock-based compensation expense	1,307	580	2,344	1,104
Technology and development	'	'	'	'
Stock based Compensation Cost	'	'	'	'
Total stock-based compensation expense	1,156	443	1,865	783
General and administrative	'	'	'	'
Stock based Compensation Cost	'	'	'	'
Total stock-based compensation expense	$4,819	$992	$7,168	$1,676

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Taxes	'	'	'	'
Income tax expense	$67	$136	$317	$273

Earnings_Per_Share_Attributabl

Earnings Per Share Attributable to Common Stockholders (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share Attributable to Common Stockholders	'	'	'	'
Net loss	($15,034)	($3,802)	($24,955)	($12,825)
Weighted average common shares outstanding	67,784	58,313	63,962	57,231
Net loss per share - basic and diluted	($0.22)	($0.07)	($0.39)	($0.22)

Earnings_Per_Share_Attributabl1

Earnings Per Share Attributable to Common Stockholders - Anti-dilutive (Details)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	'	'
Total shares excluded from net loss per share attributable to common stockholders	31,387	24,470
Options to purchase common stock	'	'
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	'	'
Total shares excluded from net loss per share attributable to common stockholders	26,665	16,078
Common stock warrants	'	'
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	'	'
Total shares excluded from net loss per share attributable to common stockholders	3,981	5,251
Convertible preferred stock	'	'
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	'	'
Total shares excluded from net loss per share attributable to common stockholders	'	2,857
Restricted stock awards	'	'
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	'	'
Total shares excluded from net loss per share attributable to common stockholders	741	95
Contingently redeemable shares	'	'
Anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	'	'
Total shares excluded from net loss per share attributable to common stockholders	'	189

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)

Jun. 30, 2014

Dec. 31, 2013

Dec. 31, 2013

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2011

Jun. 30, 2014

Dec. 31, 2011

Dec. 31, 2011

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Dealertrack

Dealertrack

Dealertrack

Dealertrack

Dealertrack

Dealertrack

Dealertrack

Dealertrack

Executives

Executives

Executives

Executives

Marketing Firm with Related Officer

Marketing Firm with Related Officer

Marketing Firm with Related Officer

Marketing Firm with Related Officer

Employee

USAA

USAA

USAA

USAA

USAA

USAA

Cost of revenue

Cost of revenue

Cost of revenue

Sales and marketing

Sales and marketing

Sales and marketing

Sales and marketing

Minimum

Maximum

Sales and marketing

Sales and marketing

Sales and marketing

Sales and marketing

Sales and marketing

Sales and marketing

Related Party Transactions

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Costs under related party agreements

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'

'

$600,000

$400,000

$1,200,000

$0

$100,000

$0

$200,000

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'

'

'

'

'

$3,600,000

$4,800,000

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'

$3,200,000

$1,900,000

$6,200,000

$3,200,000

Payable to related party

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1,100,000

1,200,000

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Notes issued to related parties

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'

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4,100,000

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'

Cash exchanged for notes receivable

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'

'

'

'

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2,900,000

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Common stock exchanged for notes receivable

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'

'

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1,200,000

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Interest rate on notes receivable

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1.20%

6.00%

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3.50%

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Notes receivable from related party

296,000

178,000

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'

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300,000

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'

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Amount advanced to employee

'

'

'

'

'

'

'

'

'

'

'

'

'

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60,000

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Employee advance outstanding

'

'

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'

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'

'

'

'

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'

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60,000

'

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Receivable from related party

812,000

431,000

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800,000

400,000

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'

'

Amounts due to related party

'

'

0

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'

'

'

'

'

'

'

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200,000

300,000

'

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'

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Prepaid expenses

$6,866,000

$3,550,000

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'

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'

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'

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$1,900,000

$0

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Revenue_Information_Details

Revenue Information (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue Information	'	'	'	'
Revenue	$50,497	$31,223	$94,427	$56,266
Transaction Service Offering	'	'	'	'
Revenue Information	'	'	'	'
Revenue	46,127	27,436	86,119	48,959
Data And Other Service Offering	'	'	'	'
Revenue Information	'	'	'	'
Revenue	$4,370	$3,787	$8,308	$7,307

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	Jun. 30, 2014	Aug. 31, 2014	Jul. 31, 2014	Jul. 10, 2014	Jul. 10, 2014	Jul. 10, 2014	Jul. 10, 2014	Jul. 10, 2014	Jul. 10, 2014	Jul. 10, 2014	Aug. 31, 2014
		Subsequent Event	Office Building Lease	Office Building Lease	Office Building Lease	Office Building Lease, Space One	Office Building Lease, Space One	Office Building Lease, Space Two	Office Building Lease, Space Two	October, 2019 to October, 2025	Support Services Agreement
		Perpetual software license		Subsequent Event	Subsequent Event	Subsequent Event	Subsequent Event	Subsequent Event	Subsequent Event	Office Building Lease	Subsequent Event
					sqft		sqft		sqft	Subsequent Event
Subsequent Events	'	'	'	'	'	'	'	'	'	'	'
Area of Real Estate Property	'	'	'	'	33,700	'	16,700	'	17,000	'	'
Lease term	'	'	'15 years	'	'	'15 years	'	'10 years	'	'	'
Optional lease extension term	'	'	'	'20 years	'	'	'	'	'	'	'
Annual base rent for 2015	$5,149,000	'	'	'	$2,200,000	'	'	'	'	'	'
Cumulative base rent for initial lease term	60,147,000	'	36,300,000	'	36,300,000	'	'	'	'	'	'
Irrevocable stand-by letter of credit	'	'	3,500,000	'	3,500,000	'	'	'	'	'	'
Minimum requirement for letter of credit that is subject to annual reduction	'	'	'	'	'	'	'	'	'	1,200,000	'
Intangible asset acquired	'	4,900,000	'	'	'	'	'	'	'	'	'
Contract term	'	'	'	'	'	'	'	'	'	'	'3 years
Total contract obligation	'	'	'	'	'	'	'	'	'	'	$2,400,000