Dealertrack 10-Q 11 May 15 2015 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Entity Registrant Name	Dealertrack Technologies, Inc
Entity Central Index Key	1333513
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		54,792,778

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Current assets
Cash and cash equivalents	$87,578	$332,310
Marketable securities		2,101
Customer funds and customer funds receivable	40,807	33,568
Accounts receivable, net of allowances of $11,301 and $7,174, as of March 31, 2015 and December 31, 2014, respectively	128,863	101,019
Deferred tax assets, net	18,495	18,838
Prepaid expenses and other current assets	51,944	54,183
Total current assets	327,687	542,019
Property and equipment, net	97,724	86,909
Software and website development costs, net	96,590	91,146
Equity method investments	34,487	34,662
Intangible assets, net	571,191	526,202
Goodwill	1,181,455	1,055,262
Other assets - long-term	25,521	24,875
Total assets	2,334,655	2,361,075
Current liabilities
Accounts payable	49,209	42,319
Accrued compensation and benefits	23,659	30,885
Accrued liabilities - other	47,723	43,594
Customer funds payable	40,807	33,568
Deferred revenue	23,354	15,112
Deferred tax liabilities	2,786
Due to acquirees and notes payable	4,778	23,906
Total current liabilities	192,316	189,384
Long-term liabilities
Deferred tax liabilities	164,664	166,646
Deferred revenue	7,463	7,488
Long term debt, net	889,341	886,563
Other liabilities	16,537	12,306
Total long-term liabilities	1,078,005	1,073,003
Total liabilities	1,270,321	1,262,387
Commitments and contingencies (Note 17)
Stockholders' equity
Preferred stock, $0.01 par value: 10,000,000 shares authorized and no shares issued and outstanding
Common stock, $0.01 par value: 175,000,000 shares authorized; 58,094,500 shares issued and 54,721,274 shares outstanding as of March 31, 2015; and 57,562,564 shares issued and 54,244,016 shares outstanding as of December 31, 2014	581	576
Treasury stock, at cost, 3,373,226 shares and 3,318,548 shares as of March 31, 2015 and December 31, 2014, respectively	-63,344	-61,143
Additional paid-in capital	1,112,845	1,100,449
Accumulated other comprehensive (loss) income	-25,325	-3,499
Retained earnings	39,577	62,305
Total stockholders' equity	1,064,334	1,098,688
Total liabilities and stockholders' equity	$2,334,655	$2,361,075

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowances for doubtful accounts	$11,301	$7,174
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	175,000,000	175,000,000
Common stock, shares issued	58,094,500	57,562,564
Common stock, shares outstanding	54,721,274	54,244,016
Treasury stock, shares	3,373,226	3,318,548

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenue:
Net revenue	$252,754	$158,808
Operating expenses:
Cost of revenue	143,468	89,907
Research and development	33,260	24,048
Selling, general and administrative	94,465	67,486
Total operating expenses	271,193	181,441
Loss from operations	-18,439	-22,633
Interest income	71	100
Interest expense	-9,628	-5,910
Other (expense) income, net	-5,712	709
Gain on sale of investment		9,828
Earnings from equity method investment, net	2,200	1,625
Loss before benefit from income taxes, net	-31,508	-16,281
Benefit from income taxes, net	8,780	4,639
Net loss	($22,728)	($11,642)
Basic net loss per share	($0.42)	($0.25)
Diluted net loss per share	($0.42)	($0.25)
Weighted average common stock outstanding (basic)	54,441	47,351
Weighted average common stock outstanding (diluted)	54,441	47,351

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Consolidated Statements Of Comprehensive Income [Abstract]
Net loss	($22,728)	($11,642)
Other comprehensive loss, net of tax
Foreign currency translation adjustments	-22,041	-2,640
Net change in unrealized gains on securities	215	-2
Other comprehensive loss, net of tax	-21,826	-2,642
Total comprehensive loss	($44,554)	($14,284)

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Operating Activities:
Net loss	($22,728)	($11,642)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	39,097	31,291
Deferred tax benefit	-12,991	-34,603
Stock-based compensation expense	5,315	4,123
Provision for doubtful accounts and sales credits	3,538	3,114
Earnings from equity method investment, net	-2,200	-1,625
Deferred compensation	27	50
Stock-based compensation windfall tax benefit	-3,242	-8,685
Gain on sale of investment		-9,828
Amortization of debt issuance costs and debt discount	3,191	3,170
Change in contingent consideration	100	-250
Net foreign currency adjustments	1,069
Forfeited customer deposits	-20	-648
Amortization of deferred interest	7	53
Changes in operating assets and liabilities, net of effects of acquisitions:
Accounts receivable	-10,653	-12,534
Prepaid expenses and other current assets	12,490	4,236
Other assets - long-term	1,104	-4,227
Accounts payable and accrued liabilities	-44,679	-68,213
Deferred rent	37	-6
Deferred revenue	5,857	1,714
Other liabilities - long-term	1,435	11,646
Net cash used in operating activities	-23,246	-92,864
Investing Activities:
Capital expenditures	-13,039	-5,108
Capitalized software and website development costs	-9,954	-10,645
Proceeds from sale of investment in TrueCar		92,518
Purchases of marketable securities		-2,150
Proceeds from sales and maturities of marketable securities	2,095	7,539
Payment for acquisition of businesses, net of acquired cash	-174,574	-541,288
Net cash used in investing activities	-195,472	-459,134
Financing Activities:
Proceeds from issuance of term loan B credit facility		575,000
Repayment of incadea debt facilities	-22,604
Payments for debt issuance costs		-15,501
Stock-based compensation windfall tax benefit	3,242	8,685
Proceeds from stock purchase plan and exercise of stock options	4,099	10,729
Purchases of treasury stock	-2,201	-4,412
Proceeds from note receivable		500
Payment of contingent consideration	-5,250
Principal payments on capital lease obligations and financing arrangements	-23	-29
Net cash (used in) provided by financing activities	-22,737	574,972
Net (decrease) increase in cash and cash equivalents	-241,455	22,974
Effect of exchange rate changes on cash and cash equivalents	-3,277	-1,080
Cash and cash equivalents, beginning of period	332,310
Cash and cash equivalents, end of period	87,578	144,267
Cash paid for:
Income taxes	326	2,210
Interest	7,864	3,424
Non-cash investing and financing activities:
Accrued capitalized hardware, software and fixed assets	5,856	6,771
Assets acquired under capital leases and financing arrangements		35
Dealer.com [Member]
Non-cash investing and financing activities:
Non-cash consideration issued for acquisition		$471,220

Business_Description_and_Basis

Business Description and Basis of Presentation	3 Months Ended
	Mar. 31, 2015
Business Description and Basis of Presentation [Abstract]
Business Description and Basis of Presentation	1. Basis of Presentation and Business Description
	Business Description
	Dealertrack Technologies’ web-based software solutions and services enhance efficiency and profitability for all major segments of the automotive retail industry, including dealers, lenders, OEMs, third-party retailers, aftermarket providers and other service providers. Dealertrack operates the largest online credit application networks in the United States and Canada. We believe we deliver the industry’s most comprehensive solution set, including:
		·	Digital Marketing solutions, which provide websites, digital advertising, and other digital marketing offerings to assist dealers in achieving higher lead conversion rates by helping to optimize the number of shoppers to their websites;
		·	Dealer Management solutions, which provide franchised and independent dealers with a powerful dealer management systems (DMS) featuring easy-to-use tools and real-time data access to enhance their efficiency;
		·	F&I solutions, which allow dealers to streamline the in-store and online sales and financing processes as they structure deals from a single integrated platform;
		·	Inventory solutions, which provide vehicle inventory management and transportation offerings to help dealers accelerate used-vehicle turn rates and assist with the facilitation of vehicle delivery;
		·	Registration & Titling solutions, which include online and cross-state vehicle registration services; and
		·	Collateral Management solutions, which include electronic lien and titling applications and service, title and collateral administration, as well as our digital contracting processing services.
	References in this Quarterly Report on Form 10-Q to “Dealertrack,” the “company,” “our” or “we” are to Dealertrack Technologies, Inc., a Delaware corporation, and/or its subsidiaries.
	In January 2015, we acquired more than 99% of the voting equity of incadea plc (the acquisition of incadea) (incadea), a leading provider of DMS software and services to the global automotive retail and wholesale market. We subsequently made the final disbursements related to the acquisition and acquired the remaining 1% of the outstanding voting equity which resulted in us acquiring all of the total voting equity in incadea.
	Basis of Presentation
	The accompanying unaudited consolidated financial statements for the three months ended March 31, 2015 and 2014 have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and, therefore, they do not necessarily include all information and footnotes required by accounting principles generally accepted in the United States (GAAP) for complete financial statements. The December 31, 2014 balance sheet information has been derived from the audited financial statements at that date, but does not include all disclosures required by GAAP.
	In the opinion of management, the unaudited financial information for the interim periods presented reflects all adjustments, which are normal and recurring, necessary for a fair presentation of the statement of operations, financial position, other comprehensive income and cash flows. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2014, filed with the Securities and Exchange Commission (SEC) on February 24, 2015. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2015.
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and the disclosures of contingent amounts in our consolidated financial statements and the accompanying notes. Actual results could differ from those estimates.
	Subsequent to the acquisition of incadea, we report our operations in two reportable segments: U.S. & Canada and International. For further information, see Note 12 and Note 18 to our consolidated financial statements.

Significant_Accounting_Policie

Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Summary Of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Significant Accounting Policies
	Our significant accounting policies are those that we believe are both important to the portrayal of our financial condition and results of operations and that involve difficult, subjective or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain.  There have been no material changes to the significant accounting policies discussed in Note 2 of our Annual Report on Form 10-K for the year ended December 31, 2014, except as set forth below.
	International Segment
	In a majority of the arrangements in the international segment, perpetual software licenses are sold in multiple-element arrangements that also include development, implementation, training and other professional services, as well as support and maintenance services. Professional services are deemed to be essential to the functionality of the software, therefore an arrangement is accounted for using contract accounting until the essential services are complete.
	For multiple-element arrangements in which vendor-specific objective evidence (VSOE) for post-contract services (PCS) has not been established, and it is reasonably assured that no loss will be incurred under the arrangement, revenue is recognized pursuant to the zero gross margin method. Under this method, revenue recognition is limited to the costs incurred, and no margin is recognized for any element until the only remaining elements are PCS (generally support and maintenance services).  Any deferred margin is then recognized over the remaining contractual period.
	For multiple-element arrangements in which VSOE for PCS has been established, and it is reasonably assured that no loss will be incurred under the arrangement, licenses and professional services are considered a single element and are accounted for using contract accounting, with revenue and margin being recognized as costs are incurred. PCS services are recognized ratably over the contractual period. The company expects that VSOE will be available for an increasing portion of our multi-element arrangements during 2015.
	Renewals of support and maintenance are recognized ratably over the period that is contractually agreed upon, without deferrals.
	A limited number of our software license arrangements include customer-specific acceptance provisions. These provisions are generally presumed to be substantive and the company does not recognize revenue until the earlier of the receipt of a written customer acceptance or objective demonstration that the delivered product meets the customer-specific acceptance criteria.
	For software license arrangements in which the company utilizes a third-party distributor or value-added reseller (VAR), the company recognizes revenue on a sell-in basis when business practices and operating history indicate that there is no risk of returns, rebates, or credits and there are no other risks related to the distributors’ or sales agents’ ability to honor payment or distribution commitments.  We currently do not have arrangements in which the business practices and operating history would require recognition on a sell-through basis.
	Concentration of Credit Risk
	Our assets that are exposed to concentrations of credit risk consist primarily of cash equivalents, marketable securities and receivables from customers. We place our cash, cash equivalents, and marketable securities with financial institutions. We regularly evaluate the creditworthiness of the issuers in which we invest. Our trade receivables are spread over many customers. We maintain an allowance for uncollectible accounts receivable based on expected collectability and perform ongoing credit evaluations of customers’ financial condition.
	Our revenue is generated from customers in the automotive retail industry. As of March 31, 2015 and December 31, 2014, one customer accounted for 11% of our accounts receivable, respectively. For the three months ended March 31, 2015 and 2014,  no customer accounted for more than 10% of our revenue.
	Related Party Transactions
	We own a 50% interest in Chrome Data Solutions.  We incur an annual data license fee payable to Chrome Data Solutions of $0.5 million, which is recorded as cost of revenue. In addition, we both provide services to and receive services from Chrome Data Solutions in the normal course of business, which results in the payment and receipt of insignificant amounts.

Recently_Adopted_Accounting_Pr

Recently Adopted Accounting Pronouncements	3 Months Ended
	Mar. 31, 2015
Recently Adopted Accounting Pronouncements [Abstract]
Recently Adopted Accounting Pronouncements	3. Recently Adopted Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2014-09, Revenue from Contracts with Customers, which supersedes the revenue recognition requirements in Accounting Standards Codification (“ASC”) 605, Revenue Recognition. This ASU is based on a principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance will be effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period, using one of two retrospective application methods. Early adoption is not permitted. On April 29, 2015, the FASB issued for public comment a proposal to defer the effective date of ASU 2014-09 by one year to December 15, 2017 for annual reporting periods beginning after that date. The FASB also proposed permitting early adoption of the standard, but not before the original effective date of December 15, 2016. We are currently evaluating the application method and expected impact of this new ASU on our consolidated financial statements.
	In June 2014, the FASB issued ASU 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period. The guidance 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.  The guidance will be effective for interim and annual periods beginning after December 15, 2015, with early adoption permitted. We adopted this standard effective beginning with the quarter ended March 31, 2015. The adoption did not have a material impact on our consolidated financial statements.
	In August 2014, the FASB issued ASU 2014-15, Preparation of Financial Statements – Going Concern. The amendments in this ASU provide guidance about management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures.  The guidance will be effective for interim and annual periods beginning after December 15, 2016, with early adoption permitted.  We do not expect the adoption to have a material impact on our consolidated financial statements.
	In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs. The guidance requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. The guidance will be effective for interim and annual periods beginning after December 15, 2015, with early adoption permitted. We do not expect the adoption to have a material impact on our consolidated financial statements.

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2015
Fair Value Measurements [Abstract]
Fair Value Measurements
	4. Fair Value Measurements
	Fair value is defined as the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Inputs used to measure fair value are prioritized into a three-level fair value hierarchy. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair values are as follows:
		•		Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.
		•		Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.
		•		Level 3 – Unobservable inputs for the asset or liability. The fair value hierarchy gives the lowest priority to Level 3 inputs.
	We have segregated all financial assets that are measured at fair value on a recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date in the table below. There were no transfers between levels of the fair value hierarchy during the periods presented below.
	The fair value of our investments in marketable securities, reported by the fund managers, are verified by management through the utilization of third party pricing services and review of trades completed around the period end date. We consider market liquidity in determining the fair value for these securities. After completing our validation procedures, we did not adjust any fair value measurements provided by the fund managers. These investments in marketable securities are included in Level 2 of the fair value hierarchy below.
	Financial assets and liabilities measured at fair value on a recurring basis include the following as of March 31, 2015 and December 31, 2014 (in thousands):
	As of March 31, 2015		Quoted Prices in Active Markets		Significant Other Observable Inputs		Significant Unobservable Inputs		31-Mar-15
			(Level 1)		(Level 2)		(Level 3)
	Assets
	Cash equivalents (1)		$	6	$	—	$	—	$	6
	Marketable securities			—		—		—		—
	Total		$	6	$	—	$	—	$	6
	Liabilities
	Contingent consideration - ASR Pro (3)		$	—	$	—	$	-2,200	$	-2,200
	Contingent consideration - incadea (4)			—		—		-1,411		-1,411
	Total		$	—	$	—	$	-3,611	$	-3,611
	As of December 31, 2014		Quoted Prices in Active Markets		Significant Other Observable Inputs		Significant Unobservable Inputs		31-Dec-14
			(Level 1)		(Level 2)		(Level 3)
	Assets
	Cash equivalents (1)		$	5,197	$	—	$	—	$	5,197
	Marketable securities (2)			—		2,101		—		2,101
	Total		$	5,197	$	2,101	$	—	$	7,298
	Liabilities
	Contingent consideration - ASR Pro (3)		$	—	$	—	$	-2,100	$	-2,100
	Total		$	—	$	—	$	-2,100	$	-2,100
		-1		Cash equivalents consist of highly liquid investments with original maturity dates of three months or less, for which we determine fair value through quoted market prices. As of March 31, 2015 and December 31, 2014, these investments were money market funds of reputable financial institutions.
		-2		As of December 31, 2014,  Level 2 marketable securities were all short-term and consisted of corporate debt securities. Fair market value was determined based on the quoted market prices of the underlying securities.
		-3		In connection with our July 1, 2014 acquisition of substantially all of the assets of ASR Pro, LLC (ASR Pro), a portion of the purchase price included contingent consideration of up to $3.0 million that will be payable in 2017 based upon the achievement of certain revenue performance targets in 2015 and 2016.  The fair value of the contingent consideration is determined based upon probability-weighted revenue forecasts for the underlying period. The contingent consideration will be revalued each reporting period, until settled, with the resulting gains or losses recorded in the consolidated statements of operations.  We recorded expense of $0.1 million for the three months ended March 31, 2015 as a result of the increase in the estimated settlement of the contingent consideration from the estimated amount of $2.1 million as of December 31, 2014.
		-4		In connection with our January 2015 acquisition of incadea, we acquired a pre-existing contingent consideration liability of up to €4.4 million, of which portions are payable in 2015, 2016, and 2017 based upon certain net results (net income). The fair value of the contingent consideration is determined based upon probability-weighted forecasts of net results for the underlying periods. The contingent consideration will be revalued each reporting period, until settled, with the resulting gains or losses recorded in the consolidated statements of operations. The fair value at the time of acquisition was €1.3 million ($1.5 million). There was no change in the fair value of the contingent consideration subsequent to the date of the acquisition of incadea through March 31, 2015. As of March 31, 2015, the fair value was €1.3 million ($1.4 million).
	A reconciliation of the beginning and ending balances of the contingent consideration, a Level 3 liability, as of March 31, 2015 is as follows (in thousands):
	Balance as of December 31, 2014		$	-2,100
	Change in fair value of contingent consideration - ASR Pro			-100
	Record fair value of contingent consideration - incadea			-1,535
	Impact of foreign currency translation on change in fair value of contingent consideration - incadea			124
	Balance as of March 31, 2015		$	-3,611
	Long Term Debt
	Our senior convertible notes are shown in the accompanying consolidated balance sheets at their original issuance value, net of unamortized discount, and are not marked to market. The approximate aggregate fair value of our senior convertible notes as of March 31, 2015 and December 31, 2014 was $236.8 million and $259.0 million, respectively. The fair value of the senior convertible notes was estimated on the basis of quoted market prices of the security, which, due to limited trading activity, would be considered Level 2 in the fair value hierarchy.
	Our term loan B credit facility is shown in the accompanying consolidated balance sheets at its original issuance value, net of unamortized discount, and is not marked to market. The aggregate fair value of the term loan B credit facility as of March 31, 2015 and December 31, 2014 approximates the outstanding principal amount, as the underlying interest rate is variable. We also review quoted market prices, which, due to limited trading activity, would be considered Level 2 in the fair value hierarchy.

Marketable_Securities

Marketable Securities	3 Months Ended
	Mar. 31, 2015
Marketable Securities [Abstract]
Marketable Securities	5. Marketable Securities
	Our investments in marketable securities are made within the guidelines of our investment policy, which has established guidelines relative to the diversification of our investments and their maturities, with the principle objectives of capital preservation, maintaining liquidity, and avoiding concentrations. As of March 31, 2015, there are no available-for-sale securities. As of December 31, 2014, available-for-sale securities included corporate debt securities with an aggregate cost basis of $2.1 million and an aggregate fair value of $2.1 million. As of March 31, 2015 and December 31, 2014, gross unrealized gains and losses on available-for-sale securities were insignificant.
	As of December 31, 2014, all of our marketable securities had scheduled maturities of less than one year. A majority of our marketable securities were at least an AA rated, and all securities were at least A rated.
	Investments in money market and similar short-term investments are recorded on our consolidated balance sheets as cash and cash equivalents.
	Realized gains and losses are included as a component of other income, net, in our consolidated statements of operations. For the three months ended March 31, 2015 and 2014,  realized gains and losses on available-for-sale securities reclassified out of accumulated other comprehensive income, if any, were insignificant.

Property_And_Equipment

Property And Equipment	3 Months Ended
	Mar. 31, 2015
Property And Equipment [Abstract]
Property And Equipment	6. Property and Equipment
	Property and equipment are recorded at cost and consist of the following (dollars in thousands):
		Estimated Useful Life		March 31,		December 31,
		(Years)		2015		2014
	Building and improvements		35	$	21,879	$	21,879
	Land		–		1,100		1,100
	Computer equipment		3 – 5		104,594		88,578
	Office equipment and other		5 – 6		6,467		5,651
	Furniture and fixtures		5 – 7		10,094		8,391
	Leasehold improvements		3 – 11		18,854		17,758
	Total property and equipment, gross				162,988		143,357
	Less: Accumulated depreciation and amortization				-65,264		-56,448
	Total property and equipment, net			$	97,724	$	86,909
	Depreciation expense related to property and equipment for the three months ended March 31, 2015 and 2014 was $7.0 million and $3.7 million, respectively.
	The increase in total property and equipment, net from December 31, 2014 to March 31, 2015 primarily relates to the property and equipment acquired as part of the incadea acquisition, which was recorded at its estimated fair value of $3.5 million.  For further information, see Note 12.

Software_And_Website_Developme

Software And Website Development Costs, Net	3 Months Ended
	Mar. 31, 2015
Software And Website Development Costs, Net [Abstract]
Software And Website Development Costs, Net	7. Software and website development costs, net
	Software and website development costs are recorded at cost and consist of the following (dollars in thousands):
		Estimated Useful Life		March 31,		December 31,
		(Years)		2015		2014
	Software and website development costs		7-Feb	$	183,453	$	169,813
	Less: Accumulated depreciation and amortization				-86,863		-78,667
	Software and website development costs, net			$	96,590	$	91,146
	Amortization expense related to software and website development costs for the three months ended March 31, 2015 and 2014 were $8.9 million and $6.9 million, respectively.

Equity_Method_Investments

Equity Method Investments	3 Months Ended
	Mar. 31, 2015
Equity Method Investments [Abstract]
Investments	8. Equity Method Investments
	Equity method investments as of March 31, 2015 and December 31, 2014 were $34.5 million and $34.7 million, respectively.
	We own a 50% interest in Chrome Data Solutions and record in our consolidated statement of operations 50% of the net income of Chrome Data Solutions. Cash distributions, which are recorded as a reduction of our investment upon receipt, are based on a calculation considering results of operations and cash on hand and are generally received quarterly.
	Our earnings from the equity method investment are reduced by amortization expense relating to the basis difference between the book basis of the contributed assets and the fair value of the investment recorded. This basis difference is being recorded over the lives of the underlying assets which gave rise to the basis difference, which range from 3 to 10 years. The unrecorded basis difference as of March 31, 2015 is $6.1 million. The amortization of the basis difference to be recorded for the remainder of 2015 is $1.3 million.
	The change in our equity method investment for the three months ended March 31, 2015 and 2014 was as follows (in thousands):
		Three Months Ended March 31,
		2015		2014
	Beginning balance	$	34,662	$	36,628
	Share of net income		2,637		2,171
	Amortization of basis difference		-437		-547
	Cash distributions received		-2,500		-1,700
	Payable to partner		125		100
	Ending balance	$	34,487	$	36,652
	There were no returns of investment during the three months ended March 31, 2015 and 2014.
	We incur an annual data license fee payable to Chrome Data Solutions of $0.5 million, which is recorded as cost of revenue. In addition, there are other services performed by both us and Chrome Data Solutions, which results in both the payment and receipt of insignificant amounts, in the normal course of business.
	The unaudited summarized financial information of Chrome Data Solutions is presented below (in thousands):
	Condensed Balance Sheet
		31-Mar-15		31-Dec-14
	Current assets	$	14,456	$	13,992
	Non-current assets		31,377		31,021
	Total assets	$	45,833	$	45,013
	Current liabilities	$	9,047	$	6,970
	Non-current liabilities		—		1,450
	Total liabilities	$	9,047	$	8,420
	Condensed Results of Operations
		Three Months Ended March 31,
		2015		2014
	Revenue	$	12,709	$	11,577
	Gross profit		9,562		7,836
	Net income		5,275		4,344

Intangible_Assets

Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill And Intangible Assets [Abstract]
Intangible Assets	9. Intangible Assets
	Intangible assets are recorded at estimated fair value and are amortized either ratably over their estimated useful lives or based upon the underlying cash flows. The gross book value, accumulated amortization and amortization periods of the intangible assets were as follows (dollars in thousands):
		31-Mar-15						31-Dec-14
														Estimated
		Gross		Accumulated		Net		Gross		Accumulated		Net		Useful Life
		Book Value		Amortization		Book Value		Book Value		Amortization		Book Value		(Years)
	Customer relationships	$	339,607	$	-74,709	$	264,898	$	324,860	$	-66,681	$	258,179	16-Apr
	Technology		305,917		-82,784		223,133		267,400		-71,419		195,981	8-Apr
	Trade names		91,602		-14,814		76,788		76,970		-11,995		64,975	10-Mar
	Non-compete agreements		5,740		-2,459		3,281		5,740		-2,072		3,668	6-Mar
	State DMV relationships		7,790		-4,699		3,091		7,790		-4,391		3,399	8-Jun
	Total	$	750,656	$	-179,465	$	571,191	$	682,760	$	-156,558	$	526,202
	The increase in intangible assets from December 31, 2014 to March 31, 2015 primarily relates to the intangibles acquired as part of the incadea acquisition, which were recorded at their estimated fair value of $74.9 million.
	Amortization expense related to intangibles for the three months ended March 31, 2015 and 2014 was $23.2 million and $20.7 million, respectively.  During the three months ended March 31, 2014, we recorded additional amortization expense of $8.2 million relating to changes in the expected useful lives of certain asset use as we integrate solutions.
	Amortization expense that will be incurred for the remaining period of 2015 and for each of the subsequent four years and thereafter is estimated as follows (in thousands):
	Remainder of 2015	$	67,961
	2016		83,960
	2017		78,837
	2018		71,645
	2019		66,130
	Thereafter		202,658
	Total	$	571,191

Goodwill

Goodwill	3 Months Ended
	Mar. 31, 2015
Goodwill And Intangible Assets [Abstract]
Goodwill	10. Goodwill
	The change in carrying amount of goodwill by reporting segment for the three months ended March 31, 2015 was as follows (in thousands):
		U.S. & Canada		International		Total
	Goodwill, gross, as of December 31, 2014	$	1,055,262	$	—	$	1,055,262
	Accumulated impairment losses as of December 31, 2014		—		—		—
	Goodwill, net, as of December 31, 2014	$	1,055,262	$	—	$	1,055,262
	Goodwill, net, as of December 31, 2014	$	1,055,262	$	—	$	1,055,262
	Acquisition of incadea		—		140,858		140,858
	Currency translation adjustment		-2,096		-12,569		-14,665
	Goodwill, gross, as of March 31, 2015	$	1,053,166	$	128,289	$	1,181,455
	Accumulated impairment losses as of March 31, 2015		—		—		—
	Goodwill, net, as of March 31, 2015	$	1,053,166	$	128,289	$	1,181,455

Long_Term_Debt

Long Term Debt	3 Months Ended
	Mar. 31, 2015
Long Term Debt [Abstract]
Long Term Debt	11.  Long Term Debt
	Our long term debt as of March 31, 2015 is comprised of the following (in thousands):
			31-Mar-15
	Revolving credit facility	$	160,000
	Term loan B credit facility		539,724
	Senior convertible notes		181,132
	Notes payable		8,195
	Other		290
	Net carrying value	$	889,341
	Credit Agreement - 2014
	On February 28, 2014, Dealertrack and one of our subsidiaries, Dealertrack Canada, Inc., entered into a credit agreement (the 2014 Credit Agreement) which provides credit facilities aggregating $800.0 million, including a $575.0 million term loan B credit facility and a $225.0 million revolving credit facility. Up to $25.0 million of the revolving credit facility may be used to obtain letters of credit, up to $25.0 million of the revolving credit facility may be used to obtain swing line loans, and up to $35.0 million of the revolving credit facility may be used to obtain revolving loans and letters of credit in Canadian Dollars.
	The 2014 Credit Agreement provides that, subject to certain conditions, we may request, at any time and from time to time, the establishment of one or more additional term loan facilities and/or the borrowers may request increases to the revolving credit facility in an aggregate principal amount not to exceed the sum of (i) $200.0 million plus (ii) an additional amount if, after giving effect to such additional amount on a pro forma basis, our consolidated first lien leverage ratio (the calculation of which is subject to certain adjustments for purposes of this test) does not exceed 4.0 to 1.0.
	The 2014 Credit Agreement contains certain mandatory prepayments, representations and warranties, affirmative covenants, negative covenants and conditions that are customarily required for similar financings. The 2014 Credit Agreement includes, for the benefit of the revolving credit facility only, a financial covenant based on a maximum consolidated first lien leverage ratio. The 2014 Credit Agreement also contains customary events of default including, but not limited to, the failure to make payments of interest or principal under the 2014 Credit Agreement, the failure to comply with certain covenants and agreements specified in the 2014 Credit Agreement for a period of time after notice has been provided, the failure to pay certain other indebtedness, the acceleration of such other indebtedness and certain events of insolvency. If any event of default occurs, the principal, interest and any other monetary obligations on all the then outstanding amounts under the 2014 Credit Agreement may become due and payable immediately.
	For further information, see Note 12 included in our Annual Report on Form 10-K for the year ended December 31, 2014.
	Revolving Credit Facility
	Our $225.0 million revolving credit facility has a maturity date of February 28, 2019. Interest on loans made in U.S. Dollars under this revolving credit facility accrues, at our option, at a rate per annum equal to (1) the ABR plus a margin ranging from 0.50% to 1.25% depending upon our consolidated first lien leverage ratio or (2) LIBOR for an interest period to be selected by us plus a margin ranging from 1.50% to 2.25% depending upon our consolidated first lien leverage ratio. Interest on loans made in Canadian Dollars under this revolving credit facility accrues, at our option, at a rate per annum equal to (1) the ABR plus a margin ranging from 0.50% to 1.25% depending upon our consolidated first lien leverage ratio or (2) the CDOR Rate (as defined below) for an interest period to be selected by us plus a margin ranging from 1.50% to 2.25% depending upon our consolidated first lien leverage ratio.
	The “ABR” is equal to (i) for loans denominated in U.S. Dollars, a fluctuating rate equal to the highest of (a) the prime rate, (b) ½ of the 1% above the federal funds effective rate and (c) one-month LIBOR plus 1.0% and (ii) for loans denominated in Canadian Dollars, equal to the higher of (a) the Canadian prime rate and (b) the one-month CDOR Rate plus 1.0%. The “CDOR Rate” for any interest period is the rate equal to the sum of (a) the annual rate of interest determined with reference to the arithmetic average of certain discount rate quotations, plus (b) 0.10% per annum.
	As of March 31, 2015, we had $160.0 million outstanding under our revolving credit facility and we were in compliance with all covenants and financial ratios under the 2014 Credit Agreement. As of March 31, 2015, we had $65.0 million available for borrowing under the revolving credit facility. The borrowing on our revolving credit facility was related to the acquisition of incadea, which closed in January 2015. See Note 12 for further details.
	As of March 31, 2015, the total capitalized debt issuance costs remaining to be amortized to interest expense were $4.5 million.
	Term Loan B Credit Facility
	The $575.0 million term loan B credit facility has a maturity date of February 28, 2021. Interest on loans made under the term loan B credit facility accrues, at our option, at a rate per annum equal to (1) the ABR (as defined below) plus a margin ranging from 1.50% to 1.75% depending upon our consolidated first lien leverage ratio or (2) LIBOR for an interest period to be selected by us plus a margin ranging from 2.50% to 2.75% depending upon our consolidated first lien leverage ratio.  For purposes of the term loan B credit facility, the ABR is subject to a floor of 1.75% per annum and LIBOR is subject to a floor of 0.75% per annum.
	As a result of principal payments made in 2014, there are no required principal payments until the quarter ending December 31, 2018.
	The interest rate per annum on the term loan B credit facility loans as of March 31, 2015 was 3.25%.
	The principal amount, unamortized discount, and net carrying amount of the liability component of the term loan B credit facility as of March 31, 2015 and December 31, 2014 consisted of the following (in thousands):
			31-Mar-15		31-Dec-14
	Principal amount	$	548,563	$	548,563
	Less: Unamortized discount		8,839		9,213
	Net carrying value	$	539,724	$	539,350
	As of March 31, 2015, the total capitalized debt issuance costs remaining to be amortized to interest expense were $0.8 million.
	Senior Convertible Notes
	On March 5, 2012, we issued $200.0 million in aggregate principal amount of 1.50% senior convertible notes in a private placement. In connection with the offering of the notes, we entered into privately negotiated convertible note hedge transactions with the initial purchasers of the notes or their respective affiliates. The notes are senior unsecured obligations, subordinated in right of payment to existing and future secured senior indebtedness. We do not have the right to redeem the notes before maturity. The notes will mature on March 15, 2017, unless earlier repurchased or converted. For further information, see Note 12 included in our Annual Report on Form 10-K for the year ended December 31, 2014.
	The closing sale price of our common stock did not exceed $48.58  (130% of the conversion price of $37.37) for at least 20 of the last 30 trading days of the quarter ended March 31, 2015 and December 31, 2014. As a result, the senior convertible notes may not be surrendered for conversion during the calendar quarter following March 31, 2015 and could not be surrendered for conversion during the calendar quarter following December 31, 2014. As there is no potential conversion, the net carrying value of the senior convertible notes was presented as a long-term liability on the consolidated balance sheet as of March 31, 2015 and December 31, 2014.
	The net carrying amount of the liability component of the notes as of March 31, 2015 and December 31, 2014 consisted of the following (in thousands):
			31-Mar-15		31-Dec-14
	Principal amount	$	200,000	$	200,000
	Less: Unamortized discount		18,868		21,094
	Net carrying value	$	181,132	$	178,906
	As of March 31, 2015,  the total capitalized debt issuance costs remaining to be amortized to interest expense were  $2.3 million.
	As of March 31, 2015, the "if-converted value" of the notes exceeded the principal amount by $6.2 million.
	It is our intent to settle the par value of the notes in cash, and we expect to have the liquidity to do so based upon cash on hand, net cash flows from operations, and proceeds of our revolving credit facility.  As a result, there is no potential impact to diluted earnings per share unless the average share price of our common stock for the respective periods exceeds the conversion price of $37.37, with additional dilution if the average share price exceeds the warrant strike price of $46.18.
	For the three months ended March 31, 2015 and 2014, the average share price of our common stock exceeded the conversion price of $37.37, which resulted in additional dilution of 0.4 million shares and 1.4 million shares to our diluted net loss per share calculation for the respective periods. However, due to the net loss for the respective periods, the 0.4 million shares and 1.4 million shares were excluded from the diluted net loss per share calculations as they were antidilutive.
	For three months ended March 31, 2015, the average share price of our common stock did not exceed the warrant strike price of $46.18, and therefore there was no impact to diluted net loss per share for the period. For the three months ended March 31, 2014, the average share price of our common stock exceeded the warrant strike price of $46.18, which resulted in additional dilution of 0.4 million shares to our diluted net loss per share calculation for the period. However, due to the net loss for the period, the 0.4 million shares were excluded from the diluted net loss per share calculation as they were antidilutive.
	Notes Payable
	In conjunction with the acquisition of Dealer.com, we acquired three notes payable for which the aggregate outstanding amount is $8.7 million as of March 31, 2015, of which $8.2 million is classified as long term as of March 31, 2015.  The notes have varying maturities through 2028.  For further information, see Note 12 included in our Annual Report on Form 10-K for the year ended December 31, 2014.
	Interest Expense
	The total interest expense, including amortization of debt issuance costs and commitment fees, associated with our senior convertible notes, term loan B credit facility, and revolving credit facility for the three months ended March 31, 2015 and 2014 are as follows (in thousands):
		Three Months Ended March 31,
		2015		2014
	Convertible notes - coupon interest	$	750	$	750
	Convertible notes - amortization of debt discount		2,226		2,082
	Convertible notes - amortization of debt issuance costs		275		258
	Term loan B credit facility - cash interest	$	4,482	$	1,789
	Term loan B credit facility - amortization of debt issuance costs and debt discount		405		134
	Revolving credit facility - cash interest	$	866	$	—
	Revolving credit facility - commitment fees		57		136
	Revolving credit facility - amortization of debt issuance costs		285		696
	Other	$	282	$	65
	Total interest expense	$	9,628	$	5,910

Business_Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Business Combinations
	12. Business Combinations
	incadea Acquisition
	On January 9, 2015, we acquired more than 99% of the voting equity of incadea. Total consideration was £120.3 million ($181.5  million).  We  subsequently made the final disbursements related to the acquisition of the outstanding voting equity which resulted in us acquiring 100% of the voting equity of incadea.
	Incadea is a leading provider of DMS software and services to the global automotive retail market. The acquisition expands our addressable market of software solutions to grow our existing global customer base.
	This business combination was accounted for under the acquisition method of accounting, resulting in the total preliminary purchase price being allocated to the assets acquired and liabilities assumed according to their fair values at the date of acquisition as follows (in thousands):
	Current assets	$	38,925
	Property and equipment		3,487
	Non-current assets		5,947
	Intangible assets		74,894
	Goodwill		140,858
	Total assets acquired		264,111
	Liabilities assumed - current		-42,446
	Liabilities assumed - non-current		-40,167
	Net assets acquired	$	181,498
	While the purchase proceeds were paid in Great British Pounds (GBP), a significant portion of the acquired assets and liabilities are denominated in Euros. Amounts reflected above are the USD equivalent of the purchase price allocation as of the acquisition date. The acquired current assets include $6.9 million of acquired cash. The GBP funds held in escrow to fund the acquisition resulted in foreign currency translation losses of $1.9 million that were recorded in 2014, and foreign currency translation losses of $4.8 million that were recorded during the three months ended March 31, 2015.
	Goodwill represents the excess of the purchase price over the fair values of the acquired net tangible and intangible assets. In accordance with the provisions of FASB ASC 350, goodwill is not amortized but will be tested for impairment at least annually. The allocated value of goodwill primarily relates to the acquired workforce, future additional customers and future technology development. The acquired goodwill and intangible assets are not deductible for tax purposes.
	The amounts allocated to acquired intangible assets, and their associated weighted-average useful lives, which were determined based on the period during which the assets are expected to contribute directly or indirectly to our future cash flows, consisted of the following:
				Weighted-Average
		Amount		Useful Life
		(In thousands)		(Years)
	Customer relationships	$	16,538	15
	Technology		42,290	8
	Trade names		16,066	8
	Total acquired identifiable intangible assets	$	74,894
	Acquired liabilities include a pre-existing contingent consideration arrangement based upon certain net results (net income). The fair value of the contingent consideration at the time of acquisition was €1.3 million ($1.5 million). The contingent consideration is revalued each reporting period, until settled, with the resulting gains or losses recorded in the consolidated statements of operations. There was no change in the fair value of the contingent consideration subsequent to the date of the acquisition of incadea through March 31, 2015.
	The results of incadea were included in our consolidated statement of operations from January 9, 2015, the date of acquisition. Incadea revenue and loss from operations were $12.5 million and $6.4 million, respectively, from the date of acquisition through March 31, 2015.
	We expensed approximately $3.0 million of professional fees associated with the acquisition for the three months ended March 31, 2015.
	Unaudited Pro Forma Summary of Operations
	The accompanying unaudited pro forma summary represents our consolidated results of operations as if the 2015 acquisition of incadea had been completed as of January 1, 2014, and the 2014 acquisitions of Dealer.com and ASR Pro had been completed as of January 1, 2013. The unaudited pro forma financial results for 2015 reflect the results for the three months ended March 31, 2015, as well as the effects of the pro forma adjustments for the stated transactions that occurred in 2015. The unaudited pro forma financial results for 2014 reflect the results for the three months ended March 31, 2014, as well as the effects of the pro forma adjustments for the stated transactions that occurred in both 2015 and 2014.
	The unaudited pro forma financial information includes the accounting effects of the business combinations, including adjustments to the amortization of intangible assets, professional fees associated with the transactions, interest related to our term loan B credit facility and acquired debt from the incadea acquisition, foreign exchange losses resulting from the funding of the incadea acquisition, and shares issued as part of acquisitions. The unaudited pro forma information does not necessarily reflect the actual results that would have been achieved, nor is it necessarily indicative of our future consolidated results.
		Three Months Ended March 31,
		2015			2014
		(in thousands, except per share data)
	Net revenue	$	252,754		$	214,911
	Net (loss)		-15,621			-27,868
	Basic net (loss) per share		-0.29			-0.53
	Diluted net (loss) per share		-0.29			-0.53

Accrued_Liabilities_Other

Accrued Liabilities - Other	3 Months Ended
	Mar. 31, 2015
Accrued Liabilities - Other [Abstract]
Accrued Liabilities - Other	13. Accrued Liabilities – Other
	A summary of the components of accrued liabilities – other as of March 31, 2015 and December 31, 2014 is as follows (in thousands):
		31-Mar-15		31-Dec-14
	Professional fees	$	8,727	$	7,143
	Interest payable		4,867		6,069
	Digital marketing - advertising and direct service costs		3,758		6,021
	Acquired contingent consideration		—		5,250
	Acquisition related compensation		805		2,615
	Customer deposits		3,185		2,903
	Sales taxes		2,618		2,453
	Revenue share		1,930		1,212
	Computer and office equipment, furniture and fixtures		636		1,174
	Income taxes payable		6,204		458
	State DMV transaction fees		815		756
	Other		14,178		7,540
	Total accrued liabilities – other	$	47,723	$	43,594

Net_Income_Loss_Per_Share

Net Income (Loss) Per Share	3 Months Ended
	Mar. 31, 2015
Net Income (Loss) Per Share [Abstract]
Net Income (Loss) Per Share	14. Net Income (Loss) Per Share
	Basic earnings per share is calculated by dividing net income (loss) by the weighted average number of common shares outstanding during the period. Diluted earnings per share is calculated by dividing net income by the weighted average number of common shares outstanding, assuming dilution, during the period. The diluted earnings per share calculation assumes (i) all stock options which are in the money are exercised at the beginning of the period, (ii) if applicable, unvested awards that are considered to be contingently issuable shares because they contain either a performance or market condition will be included in diluted earnings per share if dilutive and if their conditions (a) have been satisfied at the reporting date or (b) would have been satisfied if the reporting date was the end of the contingency period, (iii) if applicable, potential common shares which may be issued to satisfy the conversion spread value of our senior convertible notes, and (iv) if applicable, potential common shares which may be issued to satisfy the warrants issued in conjunction with our senior convertible notes. In periods with net losses, there is no dilution in the earnings per share calculation.
	The number of shares included in the denominator of diluted earnings per share relating to our senior convertible notes is calculated by dividing the conversion spread value by the average share price of our common stock during the period. The conversion spread value is the value that would be delivered to investors based on the terms of the notes, at the assumed conversion date.
	The number of shares included in the denominator of diluted earnings per share relating to the warrants issued in conjunction with our senior convertible notes is calculated using the treasury stock method, with the dilution calculated by dividing the warrant premium by the average share price of our common stock during the period. The warrant premium is the value that would be delivered to investors based on the terms of the warrants, at the assumed conversion date.
	The following table sets forth the computation of basic and diluted net loss per share for the three months ended March 31, 2015 and 2014 (in thousands, except per share amounts):
		Three Months Ended March 31,
		2015		2014
	Numerator:
	Net loss	$	-22,728	$	-11,642
	Denominator:
	Weighted average common stock outstanding (basic)		54,441		47,351
	Common equivalent shares from stock based awards		—		—
	Potential common shares related to convertible senior notes		—		—
	Potential common shares related to warrants		—		—
	Weighted average common stock outstanding (diluted)		54,441		47,351
	Basic net loss per share	$	-0.42	$	-0.25
	Diluted net loss per share	$	-0.42	$	-0.25
	The following is a summary of the weighted shares outstanding during the respective periods that have been excluded from the diluted net loss per share calculation because the effect would have been antidilutive (in thousands):
		Three Months Ended March 31,
		2015		2014
	Stock options		2,764		3,379
	Restricted stock units		939		948
	Performance stock units		172		307
	Senior convertible notes		433		1,366
	Warrants related to senior convertible notes		—		426
	Total antidilutive awards		4,308		6,426
	In regards to our senior convertible notes, it is our intent to settle the par value of the notes in cash, and we expect to have the liquidity to do so. As a result, there is no potential impact to diluted earnings per share except when the average share price of our common stock for the respective periods exceeds the conversion price of $37.37, with additional dilution if the average share price exceeds the warrant strike price of $46.18.
	For the three months ended March 31, 2015 and 2014, the average share price of our common stock exceeded the conversion price of $37.37, which resulted in additional dilution of 0.4 million shares and 1.4 million shares to our diluted net loss per share calculation for the respective periods. However, due to the net loss for the respective periods, the 0.4 million shares and 1.4 million shares were excluded from the diluted net loss per share calculations as they were antidilutive.
	For three months ended March 31, 2015, the average share price of our common stock did not exceed the warrant strike price of $46.18, and therefore there was no impact to diluted net loss per share for the period. For the three months ended March 31, 2014, the average share price of our common stock exceeded the warrant strike price of $46.18, which resulted in additional dilution of 0.4 million shares to our diluted net loss per share calculation for the period. However, due to the net loss for the period, the 0.4 million shares were excluded from the diluted net loss per share calculation as they were antidilutive.

StockBased_Compensation_Expens

Stock-Based Compensation Expense	3 Months Ended
	Mar. 31, 2015
Stock-Based Compensation Expense [Abstract]
Stock-Based Compensation Expense	15. Stock-Based Compensation Expense
	Stock-based compensation is measured at the grant date, based on the fair value of the award, and recognized as an expense over the requisite service period, net of an estimated forfeiture rate. We currently have three types of stock-based compensation awards: stock options, restricted stock units and performance stock units. In addition, stock-based compensation expense includes expense related to the discount on shares purchased under our employee stock purchase plan (ESPP). For further information, see Notes 2 and 14 included in our Annual Report on Form 10-K for the year ended December 31, 2014.
	The following summarizes stock-based compensation expense by expense category for the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended March 31,
		2015		2014
	Cost of revenue	$	327	$	276
	Research and development		923		752
	Selling, general and administrative		4,065		3,095
	Total stock-based compensation expense	$	5,315	$	4,123

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Taxes [Abstract]
Income Taxes	16. Income Taxes
	We file a consolidated U.S. Federal income tax return and tax returns in various state and local jurisdictions. Certain of our subsidiaries also file tax returns in non-domestic jurisdictions within North America, Latin America, Europe, Asia and the South Pacific.
	The total liability recorded for uncertain tax positions that would affect our effective tax rate upon resolution of the uncertain tax position, as of March 31, 2015 and December 31, 2014, was $2.7 million and $1.2 million, respectively.
	Interest and penalties, if any, related to tax positions taken in our tax returns are recorded in interest expense and general and administrative expenses, respectively, in our consolidated statements of operations. As of March 31, 2015 and December 31, 2014, accrued interest and penalties related to tax positions taken on our tax returns were approximately $0.5 million and  $0.2 million, respectively.
	The effective tax rate for the three months ended March 31, 2015 and 2014 was 27.9% and 28.5%, respectively. The decrease in the effective tax rate is due to the change in the mix of earnings between jurisdictions from the acquisition of incadea and discrete tax adjustments related to the acquisition of incadea and state apportionment rate changes.

Commitments_And_Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments And Contingencies [Abstract]
Commitments And Contingencies	17. Commitments and Contingencies
	Contingencies
	We are a party to a variety of agreements pursuant to which we may be obligated to indemnify the other party with respect to breach of contract, infringement and other matters. Typically, these obligations arise in the context of agreements entered into by us, under which we customarily agree to hold the other party harmless against losses arising from breaches of representations, warranties and/or covenants. In these circumstances, payment by us is generally conditioned on the other party making a claim pursuant to the procedures specified in the particular agreement, which procedures typically allow us to challenge the other party’s claims. Further, our obligations under these agreements may be limited to indemnification only with respect to third-party claims and limited in terms of time and/or amount. In some instances, we may have recourse against third parties for certain indemnification payments made by us.
	It is not possible to predict the maximum potential amount of future payments under these or similar agreements due to the conditional nature of our obligations and the unique facts and circumstances involved in each particular agreement. To date, we have not been required to make any material payments. We believe that if we were to incur a loss in any of these matters, it is not probable that such loss would have a material effect on our business or financial condition, financial position, results of operations or cash flows.
	Retail Sales Tax
	On an ongoing basis, various tax jurisdictions conduct reviews or audits regarding the sales taxability of our products. Historically, we have been able to respond to their inquiries without significant additional sales tax liability imposed. However, in the event we are unsuccessful in responding to future inquiries, additional  tax liabilities may be incurred. If we are obligated to charge sales tax for certain products, we believe our contractual arrangements with our customers obligate them to pay all sales taxes that are levied or imposed by any taxing authority. We currently have $0.9 million of pending assessments in one state. In June 2013, an administrative hearing was held on this matter and a decision upholding the original assessment was issued in August 2013. This decision is not considered a final ruling. In September 2013, we filed a complaint with the state tax court requesting that the decision be vacated.
	As of March 31, 2015, we have not accrued any amounts related to this assessment as we believe that our position on this matter is correct. We have estimated that potential additional assessments of $0.8 million (including interest) may exist for periods after the assessment period based upon a calculation consistent with the pending assessment. We are unable to estimate an amount for penalties due, if any.
	Employment Agreements
	Pursuant to employment or severance agreements with certain team members, we have a commitment to pay severance of approximately $11.7 million as of March 31, 2015, in the event of termination without cause, as defined in the agreements, as well as certain potential gross-up payments to the extent any such severance payment would constitute an excess parachute payment under the Internal Revenue Code. Additionally, in the event of termination without cause due to a change in control, we would also have a commitment to pay additional severance of $3.3 million as of March 31, 2015.
	Legal Proceedings
	From time to time, we are a party to litigation matters arising in connection with the ordinary course of business, none of which are expected to have a material adverse effect on our financial position, results of operations or cash flows. There are no litigation matters exclusive of those arising in connection with the ordinary course of our business.

Interim_Financial_Data_by_Segm

Interim Financial Data by Segment	3 Months Ended
	Mar. 31, 2015
Interim Financial Data By Segment [Abstract]
Interim Financial Data by Segment	18. Interim Financial Data by Segment
	Subsequent to the acquisition of incadea, we report our operations in two reportable segments: U.S. & Canada and International. Our reportable segments are consistent with our operating segments. For our U.S. & Canada segment, refer to Note 1 and 2 in the notes to the consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2014 for further information on the basis of presentation and business description. Our International segment is the result of our acquisition of incadea on January 9, 2015. This segment consists of international services revenue earned from international solutions including dealer management, business intelligence and customer and vehicle relationship management systems, which are used by dealerships affiliated with multinational car manufacturers (OEMs). Our international solutions are based on a single global platform with significant auto industry and OEM specializations built on top of proven Microsoft technology.
	The segment information provided is being reported consistent with our method of internal reporting. Operating segments are defined as components of an enterprise for which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance.
	Our revenue by segment for the three months ended March 31, 2015 and 2014 are as follows (in thousands):
			Three Months Ended March 31,
			2015				2014
			$ Amount		% of Total Revenue		$ Amount		% of Total Revenue
	U.S. & Canada		$	240,230	95	%	$	158,808	100	%
	International			12,524	5	%		—	0	%
	Total net revenue		$	252,754	100	%	$	158,808	100	%
	No country outside of the United States exceeded 5% of total revenue for the three months ended March 31, 2015.  Revenue from Canada was 6% of total revenue for the three months ended March 31, 2014.
	Supplemental disclosure of revenue by service type for the three months ended March 31, 2015 and 2014 is as follows (in thousands):
		Three Months Ended March 31,
		2015			2014
	Subscription services revenue	$	100,283		$	61,969
	Transaction services revenue		84,497			77,735
	Advertising and other revenue		55,450			19,104
	Total U.S. & Canada revenue	$	240,230		$	158,808
	International services revenue		12,524			—
	Total net revenue	$	252,754		$	158,808
	The reconciliation of segment loss from operations to our consolidated loss before the benefit from income taxes for the three months ended March 31, 2015 and 2014 is as follows (in thousands):
			Three Months Ended March 31,
			2015		2014
	U.S. & Canada (1)		$	-12,086	$	-22,633
	International			-6,353		—
	Loss from operations		$	-18,439	$	-22,633
	Unallocated amounts
	Interest income		$	71	$	100
	Interest expense			-9,628		-5,910
	Other income, net			-5,712		709
	Gain on sale of investment			—		9,828
	Earnings from equity method investment, net			2,200		1,625
	Loss before benefit from income taxes, net		$	-31,508	$	-16,281
		-1		Includes $2.5 million of costs incurred in conjunction with international segment integration activities.
	Total assets by segment as of March 31, 2015 and December 31, 2014 are as follows (in thousands):
			March 31,		December 31,
			2015		2014
	U.S. & Canada		$	2,089,520	$	2,361,075
	International			245,135		—
	Total assets		$	2,334,655	$	2,361,075
	Long-lived assets held in Canada and countries included in our international segment were $233.7 million and $32.3 million as of March 31, 2015 and December 31, 2014, respectively, representing 10% and 1% of total assets, respectively. There were no long-lived assets in any country outside of the United States that exceeded 10% of total assets as of March 31, 2015 or December 31, 2014.

Business_Description_and_Basis1

Business Description and Basis of Presentation (Policy)	3 Months Ended
	Mar. 31, 2015
Business Description and Basis of Presentation [Abstract]
Basis Of Presentation	Basis of Presentation
	The accompanying unaudited consolidated financial statements for the three months ended March 31, 2015 and 2014 have been prepared in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X and, therefore, they do not necessarily include all information and footnotes required by accounting principles generally accepted in the United States (GAAP) for complete financial statements. The December 31, 2014 balance sheet information has been derived from the audited financial statements at that date, but does not include all disclosures required by GAAP.
	In the opinion of management, the unaudited financial information for the interim periods presented reflects all adjustments, which are normal and recurring, necessary for a fair presentation of the statement of operations, financial position, other comprehensive income and cash flows. These consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2014, filed with the Securities and Exchange Commission (SEC) on February 24, 2015. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2015.
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts and the disclosures of contingent amounts in our consolidated financial statements and the accompanying notes. Actual results could differ from those estimates.
	Subsequent to the acquisition of incadea, we report our operations in two reportable segments: U.S. & Canada and International. For further information, see Note 12 and Note 18 to our consolidated financial statements.

Summary_of_Significant_Account

Summary of Significant Accounting Policies (Policy)	3 Months Ended
	Mar. 31, 2015
Summary Of Significant Accounting Policies [Abstract]
Revenue Recognition	International Segment
	In a majority of the arrangements in the international segment, perpetual software licenses are sold in multiple-element arrangements that also include development, implementation, training and other professional services, as well as support and maintenance services. Professional services are deemed to be essential to the functionality of the software, therefore an arrangement is accounted for using contract accounting until the essential services are complete.
	For multiple-element arrangements in which vendor-specific objective evidence (VSOE) for post-contract services (PCS) has not been established, and it is reasonably assured that no loss will be incurred under the arrangement, revenue is recognized pursuant to the zero gross margin method. Under this method, revenue recognition is limited to the costs incurred, and no margin is recognized for any element until the only remaining elements are PCS (generally support and maintenance services).  Any deferred margin is then recognized over the remaining contractual period.
	For multiple-element arrangements in which VSOE for PCS has been established, and it is reasonably assured that no loss will be incurred under the arrangement, licenses and professional services are considered a single element and are accounted for using contract accounting, with revenue and margin being recognized as costs are incurred. PCS services are recognized ratably over the contractual period. The company expects that VSOE will be available for an increasing portion of our multi-element arrangements during 2015.
	Renewals of support and maintenance are recognized ratably over the period that is contractually agreed upon, without deferrals.
	A limited number of our software license arrangements include customer-specific acceptance provisions. These provisions are generally presumed to be substantive and the company does not recognize revenue until the earlier of the receipt of a written customer acceptance or objective demonstration that the delivered product meets the customer-specific acceptance criteria.
	For software license arrangements in which the company utilizes a third-party distributor or value-added reseller (VAR), the company recognizes revenue on a sell-in basis when business practices and operating history indicate that there is no risk of returns, rebates, or credits and there are no other risks related to the distributors’ or sales agents’ ability to honor payment or distribution commitments.  We currently do not have arrangements in which the business practices and operating history would require recognition on a sell-through basis.
Concentration Of Credit Risk
	Concentration of Credit Risk
	Our assets that are exposed to concentrations of credit risk consist primarily of cash equivalents, marketable securities and receivables from customers. We place our cash, cash equivalents, and marketable securities with financial institutions. We regularly evaluate the creditworthiness of the issuers in which we invest. Our trade receivables are spread over many customers. We maintain an allowance for uncollectible accounts receivable based on expected collectability and perform ongoing credit evaluations of customers’ financial condition.
	Our revenue is generated from customers in the automotive retail industry. As of March 31, 2015 and December 31, 2014, one customer accounted for 11% of our accounts receivable, respectively. For the three months ended March 31, 2015 and 2014,  no customer accounted for more than 10% of our revenue.
Related Party Transactions	Related Party Transactions
	We own a 50% interest in Chrome Data Solutions.  We incur an annual data license fee payable to Chrome Data Solutions of $0.5 million, which is recorded as cost of revenue. In addition, we both provide services to and receive services from Chrome Data Solutions in the normal course of business, which results in the payment and receipt of insignificant amounts.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Measurements [Abstract]
Assets And Liabilities Measured At Fair Value On A Recurring Basis
	As of March 31, 2015		Quoted Prices in Active Markets		Significant Other Observable Inputs		Significant Unobservable Inputs		31-Mar-15
			(Level 1)		(Level 2)		(Level 3)
	Assets
	Cash equivalents (1)		$	6	$	—	$	—	$	6
	Marketable securities			—		—		—		—
	Total		$	6	$	—	$	—	$	6
	Liabilities
	Contingent consideration - ASR Pro (3)		$	—	$	—	$	-2,200	$	-2,200
	Contingent consideration - incadea (4)			—		—		-1,411		-1,411
	Total		$	—	$	—	$	-3,611	$	-3,611
	As of December 31, 2014		Quoted Prices in Active Markets		Significant Other Observable Inputs		Significant Unobservable Inputs		31-Dec-14
			(Level 1)		(Level 2)		(Level 3)
	Assets
	Cash equivalents (1)		$	5,197	$	—	$	—	$	5,197
	Marketable securities (2)			—		2,101		—		2,101
	Total		$	5,197	$	2,101	$	—	$	7,298
	Liabilities
	Contingent consideration - ASR Pro (3)		$	—	$	—	$	-2,100	$	-2,100
	Total		$	—	$	—	$	-2,100	$	-2,100
		-1		Cash equivalents consist of highly liquid investments with original maturity dates of three months or less, for which we determine fair value through quoted market prices. As of March 31, 2015 and December 31, 2014, these investments were money market funds of reputable financial institutions.
		-2		As of December 31, 2014,  Level 2 marketable securities were all short-term and consisted of corporate debt securities. Fair market value was determined based on the quoted market prices of the underlying securities.
		-3		In connection with our July 1, 2014 acquisition of substantially all of the assets of ASR Pro, LLC (ASR Pro), a portion of the purchase price included contingent consideration of up to $3.0 million that will be payable in 2017 based upon the achievement of certain revenue performance targets in 2015 and 2016.  The fair value of the contingent consideration is determined based upon probability-weighted revenue forecasts for the underlying period. The contingent consideration will be revalued each reporting period, until settled, with the resulting gains or losses recorded in the consolidated statements of operations.  We recorded expense of $0.1 million for the three months ended March 31, 2015 as a result of the increase in the estimated settlement of the contingent consideration from the estimated amount of $2.1 million as of December 31, 2014.
		-4		In connection with our January 2015 acquisition of incadea, we acquired a pre-existing contingent consideration liability of up to €4.4 million, of which portions are payable in 2015, 2016, and 2017 based upon certain net results (net income). The fair value of the contingent consideration is determined based upon probability-weighted forecasts of net results for the underlying periods. The contingent consideration will be revalued each reporting period, until settled, with the resulting gains or losses recorded in the consolidated statements of operations. The fair value at the time of acquisition was €1.3 million ($1.5 million). There was no change in the fair value of the contingent consideration subsequent to the date of the acquisition of incadea through March 31, 2015. As of March 31, 2015, the fair value was €1.3 million ($1.4 million).
Reconciliation Of Beginning And Ending Balances For Contingent Consideration
	Balance as of December 31, 2014		$	-2,100
	Change in fair value of contingent consideration - ASR Pro			-100
	Record fair value of contingent consideration - incadea			-1,535
	Impact of foreign currency translation on change in fair value of contingent consideration - incadea			124
	Balance as of March 31, 2015		$	-3,611

Property_And_Equipment_Tables

Property And Equipment (Tables)	3 Months Ended
	Mar. 31, 2015
Property And Equipment [Abstract]
Schedule Of Property And Equipment
		Estimated Useful Life		March 31,		December 31,
		(Years)		2015		2014
	Building and improvements		35	$	21,879	$	21,879
	Land		–		1,100		1,100
	Computer equipment		3 – 5		104,594		88,578
	Office equipment and other		5 – 6		6,467		5,651
	Furniture and fixtures		5 – 7		10,094		8,391
	Leasehold improvements		3 – 11		18,854		17,758
	Total property and equipment, gross				162,988		143,357
	Less: Accumulated depreciation and amortization				-65,264		-56,448
	Total property and equipment, net			$	97,724	$	86,909

Software_And_Website_Developme1

Software And Website Development Costs, Net (Tables)	3 Months Ended
	Mar. 31, 2015
Software And Website Development Costs, Net [Abstract]
Software And Website Development Costs, Net
		Estimated Useful Life		March 31,		December 31,
		(Years)		2015		2014
	Software and website development costs		7-Feb	$	183,453	$	169,813
	Less: Accumulated depreciation and amortization				-86,863		-78,667
	Software and website development costs, net			$	96,590	$	91,146

Equity_Method_Investments_Tabl

Equity Method Investments (Tables) (Chrome Data Solutions [Member])	3 Months Ended
	Mar. 31, 2015
Chrome Data Solutions [Member]
Schedule of Equity Method Investments [Line Items]
Activity In Equity Method Investment
		Three Months Ended March 31,
		2015		2014
	Beginning balance	$	34,662	$	36,628
	Share of net income		2,637		2,171
	Amortization of basis difference		-437		-547
	Cash distributions received		-2,500		-1,700
	Payable to partner		125		100
	Ending balance	$	34,487	$	36,652
Condensed Balance Sheet - Chrome Data Solutions
	Condensed Balance Sheet
		31-Mar-15		31-Dec-14
	Current assets	$	14,456	$	13,992
	Non-current assets		31,377		31,021
	Total assets	$	45,833	$	45,013
	Current liabilities	$	9,047	$	6,970
	Non-current liabilities		—		1,450
	Total liabilities	$	9,047	$	8,420
Condensed Results Of Operations - Chrome Data Solutions
	Condensed Results of Operations
		Three Months Ended March 31,
		2015		2014
	Revenue	$	12,709	$	11,577
	Gross profit		9,562		7,836
	Net income		5,275		4,344

Intangible_Assets_Tables

Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill And Intangible Assets [Abstract]
Components Of Finite-Lived Intangible Assets
		31-Mar-15						31-Dec-14
														Estimated
		Gross		Accumulated		Net		Gross		Accumulated		Net		Useful Life
		Book Value		Amortization		Book Value		Book Value		Amortization		Book Value		(Years)
	Customer relationships	$	339,607	$	-74,709	$	264,898	$	324,860	$	-66,681	$	258,179	16-Apr
	Technology		305,917		-82,784		223,133		267,400		-71,419		195,981	8-Apr
	Trade names		91,602		-14,814		76,788		76,970		-11,995		64,975	10-Mar
	Non-compete agreements		5,740		-2,459		3,281		5,740		-2,072		3,668	6-Mar
	State DMV relationships		7,790		-4,699		3,091		7,790		-4,391		3,399	8-Jun
	Total	$	750,656	$	-179,465	$	571,191	$	682,760	$	-156,558	$	526,202
Estimated Future Amortization Expense Related To Intangible Assets
	Remainder of 2015	$	67,961
	2016		83,960
	2017		78,837
	2018		71,645
	2019		66,130
	Thereafter		202,658
	Total	$	571,191

Goodwill_Tables

Goodwill (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill And Intangible Assets [Abstract]
Change In Carrying Amount Of Goodwill
		U.S. & Canada		International		Total
	Goodwill, gross, as of December 31, 2014	$	1,055,262	$	—	$	1,055,262
	Accumulated impairment losses as of December 31, 2014		—		—		—
	Goodwill, net, as of December 31, 2014	$	1,055,262	$	—	$	1,055,262
	Goodwill, net, as of December 31, 2014	$	1,055,262	$	—	$	1,055,262
	Acquisition of incadea		—		140,858		140,858
	Currency translation adjustment		-2,096		-12,569		-14,665
	Goodwill, gross, as of March 31, 2015	$	1,053,166	$	128,289	$	1,181,455
	Accumulated impairment losses as of March 31, 2015		—		—		—
	Goodwill, net, as of March 31, 2015	$	1,053,166	$	128,289	$	1,181,455

Long_Term_Debt_Tables

Long Term Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Instrument [Line Items]
Net Carrying Amount Of Long Term Debt
			31-Mar-15
	Revolving credit facility	$	160,000
	Term loan B credit facility		539,724
	Senior convertible notes		181,132
	Notes payable		8,195
	Other		290
	Net carrying value	$	889,341
Schedule Of Interest Expense Associated With Debt
		Three Months Ended March 31,
		2015		2014
	Convertible notes - coupon interest	$	750	$	750
	Convertible notes - amortization of debt discount		2,226		2,082
	Convertible notes - amortization of debt issuance costs		275		258
	Term loan B credit facility - cash interest	$	4,482	$	1,789
	Term loan B credit facility - amortization of debt issuance costs and debt discount		405		134
	Revolving credit facility - cash interest	$	866	$	—
	Revolving credit facility - commitment fees		57		136
	Revolving credit facility - amortization of debt issuance costs		285		696
	Other	$	282	$	65
	Total interest expense	$	9,628	$	5,910
Term Loan B Credit Facility [Member]
Debt Instrument [Line Items]
Net Carrying Amount Of Long Term Debt
			31-Mar-15		31-Dec-14
	Principal amount	$	548,563	$	548,563
	Less: Unamortized discount		8,839		9,213
	Net carrying value	$	539,724	$	539,350
1.50% Senior Convertible Notes Due 2017 [Member]
Debt Instrument [Line Items]
Net Carrying Amount Of Long Term Debt
			31-Mar-15		31-Dec-14
	Principal amount	$	200,000	$	200,000
	Less: Unamortized discount		18,868		21,094
	Net carrying value	$	181,132	$	178,906

Business_Combinations_Tables

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2015
Business Acquisition [Line Items]
Unaudited Pro Forma Summary Of Operations
		Three Months Ended March 31,
		2015			2014
		(in thousands, except per share data)
	Net revenue	$	252,754		$	214,911
	Net (loss)		-15,621			-27,868
	Basic net (loss) per share		-0.29			-0.53
	Diluted net (loss) per share		-0.29			-0.53
incadea [Member]
Business Acquisition [Line Items]
Purchase Price Allocation
	Current assets	$	38,925
	Property and equipment		3,487
	Non-current assets		5,947
	Intangible assets		74,894
	Goodwill		140,858
	Total assets acquired		264,111
	Liabilities assumed - current		-42,446
	Liabilities assumed - non-current		-40,167
	Net assets acquired	$	181,498
Acquired Intangible Assets And Weighted-Average Useful Lives
				Weighted-Average
		Amount		Useful Life
		(In thousands)		(Years)
	Customer relationships	$	16,538	15
	Technology		42,290	8
	Trade names		16,066	8
	Total acquired identifiable intangible assets	$	74,894

Accrued_Liabilities_Other_Tabl

Accrued Liabilities - Other (Tables)	3 Months Ended
	Mar. 31, 2015
Accrued Liabilities - Other [Abstract]
Components Of Accrued Liabilities - Other
		31-Mar-15		31-Dec-14
	Professional fees	$	8,727	$	7,143
	Interest payable		4,867		6,069
	Digital marketing - advertising and direct service costs		3,758		6,021
	Acquired contingent consideration		—		5,250
	Acquisition related compensation		805		2,615
	Customer deposits		3,185		2,903
	Sales taxes		2,618		2,453
	Revenue share		1,930		1,212
	Computer and office equipment, furniture and fixtures		636		1,174
	Income taxes payable		6,204		458
	State DMV transaction fees		815		756
	Other		14,178		7,540
	Total accrued liabilities – other	$	47,723	$	43,594

Net_Income_Loss_Per_Share_Tabl

Net Income (Loss) Per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Net Income (Loss) Per Share [Abstract]
Computation Of Basic And Diluted Net (Loss) Income Per Share
		Three Months Ended March 31,
		2015		2014
	Numerator:
	Net loss	$	-22,728	$	-11,642
	Denominator:
	Weighted average common stock outstanding (basic)		54,441		47,351
	Common equivalent shares from stock based awards		—		—
	Potential common shares related to convertible senior notes		—		—
	Potential common shares related to warrants		—		—
	Weighted average common stock outstanding (diluted)		54,441		47,351
	Basic net loss per share	$	-0.42	$	-0.25
	Diluted net loss per share	$	-0.42	$	-0.25
Securities Excluded From Computation Of Diluted Earnings Per Share
		Three Months Ended March 31,
		2015		2014
	Stock options		2,764		3,379
	Restricted stock units		939		948
	Performance stock units		172		307
	Senior convertible notes		433		1,366
	Warrants related to senior convertible notes		—		426
	Total antidilutive awards		4,308		6,426

StockBased_Compensation_Expens1

Stock-Based Compensation Expense (Tables)	3 Months Ended
	Mar. 31, 2015
Stock-Based Compensation Expense [Abstract]
Summary Of Stock-Based Compensation Expense By Expense Category And By Award Type
		Three Months Ended March 31,
		2015		2014
	Cost of revenue	$	327	$	276
	Research and development		923		752
	Selling, general and administrative		4,065		3,095
	Total stock-based compensation expense	$	5,315	$	4,123

Interim_Financial_Data_by_Segm1

Interim Financial Data by Segment (Tables)	3 Months Ended
	Mar. 31, 2015
Interim Financial Data By Segment [Abstract]
Schedule of Revenue from External Customers by Geographic Areas
			Three Months Ended March 31,
			2015				2014
			$ Amount		% of Total Revenue		$ Amount		% of Total Revenue
	U.S. & Canada		$	240,230	95	%	$	158,808	100	%
	International			12,524	5	%		—	0	%
	Total net revenue		$	252,754	100	%	$	158,808	100	%
Supplemental Disclosure Of Revenue By Service Type
		Three Months Ended March 31,
		2015			2014
	Subscription services revenue	$	100,283		$	61,969
	Transaction services revenue		84,497			77,735
	Advertising and other revenue		55,450			19,104
	Total U.S. & Canada revenue	$	240,230		$	158,808
	International services revenue		12,524			—
	Total net revenue	$	252,754		$	158,808
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
			Three Months Ended March 31,
			2015		2014
	U.S. & Canada (1)		$	-12,086	$	-22,633
	International			-6,353		—
	Loss from operations		$	-18,439	$	-22,633
	Unallocated amounts
	Interest income		$	71	$	100
	Interest expense			-9,628		-5,910
	Other income, net			-5,712		709
	Gain on sale of investment			—		9,828
	Earnings from equity method investment, net			2,200		1,625
	Loss before benefit from income taxes, net		$	-31,508	$	-16,281
		-1		Includes $2.5 million of costs incurred in conjunction with international segment integration activities.
Total Assets By Segment
			March 31,		December 31,
			2015		2014
	U.S. & Canada		$	2,089,520	$	2,361,075
	International			245,135		—
	Total assets		$	2,334,655	$	2,361,075

Basis_of_Presentation_and_Busi

Basis of Presentation and Business Description (Details) (incadea [Member])	Mar. 31, 2015	Jan. 09, 2015
incadea [Member]
Business Acquisition [Line Items]
Percent of voting interest acquired	1.00%	99.00%

Significant_Accounting_Policie1

Significant Accounting Policies (Details) (USD $)	15 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2015
Accounts Receivable [Member]
Significant Accounting Policies [Line Items]
Percentage of concentration risk	11.00%
Chrome Data Solutions [Member]
Significant Accounting Policies [Line Items]
Ownership interest percentage	50.00%	50.00%
Expenses incurred with related party		$0.50

Fair_Value_Measurements_Narrat

Fair Value Measurements (Narrative) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified
Fair Value Measurements [Abstract]
Fair value of senior convertible notes	$236.80	$259

Fair_Value_Measurements_Assets

Fair Value Measurements (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details)

3 Months Ended

3 Months Ended

2 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Jul. 01, 2014

Mar. 31, 2015

Mar. 31, 2015

Jan. 31, 2015

Jan. 09, 2015

Jan. 09, 2015

Mar. 31, 2015

Dec. 31, 2014

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

Dec. 31, 2014

Mar. 31, 2015

USD ($)

USD ($)

USD ($)

ASR Pro, Inc. [Member]

ASR Pro, Inc. [Member]

ASR Pro, Inc. [Member]

incadea [Member]

incadea [Member]

incadea [Member]

incadea [Member]

incadea [Member]

Quoted Prices In Active Markets (Level 1) [Member]

Quoted Prices In Active Markets (Level 1) [Member]

Significant Other Observable Inputs (Level 2) [Member]

Significant Unobservable Inputs (Level 3) [Member]

Significant Unobservable Inputs (Level 3) [Member]

Significant Unobservable Inputs (Level 3) [Member]

Significant Unobservable Inputs (Level 3) [Member]

Significant Unobservable Inputs (Level 3) [Member]

USD ($)

USD ($)

USD ($)

USD ($)

EUR (€)

EUR (€)

USD ($)

EUR (€)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

ASR Pro, Inc. [Member]

ASR Pro, Inc. [Member]

incadea [Member]

USD ($)

USD ($)

USD ($)

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Cash equivalents

$6,000

[1]

$5,197,000

[1]

$6,000

[1]

$5,197,000

[1]

Marketable securities

0

2,101,000

[2]

2,101,000

[2]

Total

6,000

7,298,000

6,000

5,197,000

2,101,000

Contingent consideration

-2,200,000

[3]

-2,100,000

[3]

-1,411,000

[4]

-2,200,000

[3]

-2,100,000

[3]

-1,411,000

[4]

Total

-3,611,000

-2,100,000

-3,611,000

-2,100,000

Potential contingent consideration obligations

3,000,000

Contingent consideration liability assumed

4,400,000

Change in contingent consideration

100,000

-250,000

100,000

0

Estimated fair value of contingent consideration

$2,100,000

$1,400,000

€ 1,300,000

$1,500,000

€ 1,300,000

[1]

Cash equivalents consist of highly liquid investments with original maturity dates of three months or less, for which we determine fair value through quoted market prices. As of March 31, 2015 and December 31, 2014, these investments were money market funds of reputable financial institutions.

[2]

As of December 31, 2014, Level 2 marketable securities were all short-term and consisted of corporate debt securities. Fair market value was determined based on the quoted market prices of the underlying securities.

[3]

In connection with our July 1, 2014 acquisition of substantially all of the assets of ASR Pro, LLC (ASR Pro), a portion of the purchase price included contingent consideration of up to $3.0 million that will be payable in 2017 based upon the achievement of certain revenue performance targets in 2015 and 2016. The fair value of the contingent consideration is determined based upon probability-weighted revenue forecasts for the underlying period. The contingent consideration will be revalued each reporting period, until settled, with the resulting gains or losses recorded in the consolidated statements of operations. We recorded expense of $0.1 million for the three months ended March 31, 2015 as a result of the increase in the estimated settlement of the contingent consideration from the estimated amount of $2.1 million as of December 31, 2014.

[4]

In connection with our January 2015 acquisition of incadea, we acquired a pre-existing contingent consideration liability of up to €4.4 million, of which portions are payable in 2015, 2016, and 2017 based upon certain net results (net income). The fair value of the contingent consideration is determined based upon probability-weighted forecasts of net results for the underlying periods. The contingent consideration will be revalued each reporting period, until settled, with the resulting gains or losses recorded in the consolidated statements of operations. The fair value at the time of acquisition was €1.3 million ($1.5 million). There was no change in the fair value of the contingent consideration subsequent to the date of the acquisition of incadea through March 31, 2015. As of March 31, 2015, the fair value was €1.3 million ($1.4 million).

Fair_Value_Measurements_Reconc

Fair Value Measurements (Reconciliation Of Beginning And Ending Balances For Contingent Consideration) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance		($2,100)
Balance	-3,611	-2,100
ASR Pro, Inc. [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Change in fair value of contingent consideration	-100
incadea [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Record fair value of contingent consideration	-1,535
Impact of foreign currency translation on change in fair value of contingent consideration	$124

Marketable_Securities_Narrativ

Marketable Securities (Narrative) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Marketable Securities [Abstract]
Available-for-sale securities, amortized cost basis		$2,100,000
Aggregate Fair Value	$0	$2,101,000	[1]
[1]	As of December 31, 2014, Level 2 marketable securities were all short-term and consisted of corporate debt securities. Fair market value was determined based on the quoted market prices of the underlying securities.

Property_And_Equipment_Narrati

Property And Equipment (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Property, Plant and Equipment [Line Items]
Depreciation expense	$7	$3.70
incadea [Member]
Property, Plant and Equipment [Line Items]
Property and equipment acquired	$3.50

Property_And_Equipment_Schedul

Property And Equipment (Schedule Of Property And Equipment) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$162,988	$143,357
Less: Accumulated depreciation and amortization	-65,264	-56,448
Total property and equipment, net	97,724	86,909
Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	21,879	21,879
Estimated Useful Life (Years)	35 years
Land [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	1,100	1,100
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	104,594	88,578
Office Equipment And Other [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	6,467	5,651
Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	10,094	8,391
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$18,854	$17,758
Maximum [Member] | Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	5 years
Maximum [Member] | Office Equipment And Other [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	6 years
Maximum [Member] | Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	7 years
Maximum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	11 years
Minimum [Member] | Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	3 years
Minimum [Member] | Office Equipment And Other [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	5 years
Minimum [Member] | Furniture And Fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	5 years
Minimum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	3 years

Software_And_Website_Developme2

Software And Website Development Costs, Net (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Property, Plant and Equipment [Line Items]
Intangible amortization expense	$23.20	$20.70
Software And Website Development Costs [Member]
Property, Plant and Equipment [Line Items]
Intangible amortization expense	$8.90	$6.90

Software_And_Website_Developme3

Software And Website Development Costs, Net (Components Of Software And Website Development Costs) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Software and website development costs	183,453	$169,813
Less: Accumulated depreciation and amortization	-86,863	-78,667
Software and website development costs, net	96,590	$91,146
Software And Website Development Costs [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	2 years
Software And Website Development Costs [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (Years)	7 years

Equity_Method_Investments_Narr

Equity Method Investments (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2013
Schedule of Equity Method Investments [Line Items]
Equity method investments	$34,487,000		$34,662,000
Chrome Data Solutions [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investments	34,487,000	36,652,000	34,662,000	36,628,000
Ownership interest percentage	50.00%
Unrecorded basis difference	6,100,000
Amortization of the basis difference to be recorded for the remainder of 2015	1,300,000
Return of contribution from equity method investment	0	0
Annual data license fee payable	$500,000
Maximum [Member] | Chrome Data Solutions [Member]
Schedule of Equity Method Investments [Line Items]
Estimated useful life	10 years
Minimum [Member] | Chrome Data Solutions [Member]
Schedule of Equity Method Investments [Line Items]
Estimated useful life	3 years

Equity_Method_Investments_Acti

Equity Method Investments (Activity In Equity Method Investment) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Beginning balance			$34,662
Ending balance	34,487		34,662
Chrome Data Solutions [Member]
Schedule of Equity Method Investments [Line Items]
Beginning balance	34,662	36,628
Share of net income	2,637	2,171
Amortization of basis difference	-437	-547
Payable to partner	125	100
Cash distributions received	-2,500	-1,700
Ending balance	$34,487	$36,652

Equity_Method_Investments_Cond

Equity Method Investments (Condensed Balance Sheet - Chrome Data Solutions) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Equity Method Investments [Abstract]
Current assets	$14,456	$13,992
Non-current assets	31,377	31,021
Total assets	45,833	45,013
Current liabilities	9,047	6,970
Non-current liabilities		1,450
Total liabilities	$9,047	$8,420

Equity_Method_Investments_Cond1

Equity Method Investments (Condensed Results Of Operations - Chrome Data Solutions) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Equity Method Investments [Abstract]
Revenue	$12,709	$11,577
Gross profit	9,562	7,836
Net income	$5,275	$4,344

Intangible_Assets_Narrative_De

Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Intangible amortization expense	$23.20	$20.70
Accelerated amortization expense		8.2
incadea [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset purchase accounting adjustment	$74.90

Intangible_Assets_Components_O

Intangible Assets (Components Of Finite-Lived Intangible Assets) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Book Value	750,656	$682,760
Accumulated Amortization	-179,465	-156,558
Total	571,191	526,202
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Book Value	339,607	324,860
Accumulated Amortization	-74,709	-66,681
Total	264,898	258,179
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Book Value	305,917	267,400
Accumulated Amortization	-82,784	-71,419
Total	223,133	195,981
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Book Value	91,602	76,970
Accumulated Amortization	-14,814	-11,995
Total	76,788	64,975
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Book Value	5,740	5,740
Accumulated Amortization	-2,459	-2,072
Total	3,281	3,668
State DMV Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Book Value	7,790	7,790
Accumulated Amortization	-4,699	-4,391
Total	3,091	$3,399
Maximum [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	16 years
Maximum [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	8 years
Maximum [Member] | Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	10 years
Maximum [Member] | Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	6 years
Maximum [Member] | State DMV Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	8 years
Minimum [Member] | Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	4 years
Minimum [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	4 years
Minimum [Member] | Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	3 years
Minimum [Member] | Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	3 years
Minimum [Member] | State DMV Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life (Years)	6 years

Intangible_Assets_Estimated_Fu

Intangible Assets (Estimated Future Amortization Expense Related To Intangible Assets) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Goodwill And Intangible Assets [Abstract]
Remainder of 2015	$67,961
2016	83,960
2017	78,837
2018	71,645
2019	66,130
Thereafter	202,658
Total	$571,191	$526,202

Goodwill_Change_In_Carrying_Am

Goodwill (Change In Carrying Amount Of Goodwill) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Goodwill [Line Items]
Goodwill, gross	$1,181,455	$1,055,262
Accumulated impairment losses
Goodwill, net	1,181,455	1,055,262
U.S. & Canada [Member]
Goodwill [Line Items]
Goodwill, gross	1,053,166	1,055,262
Accumulated impairment losses
Goodwill, net	1,053,166	1,055,262
International [Member]
Goodwill [Line Items]
Goodwill, gross	128,289
Accumulated impairment losses
Goodwill, net	$128,289

Goodwill_Change_In_Carrying_Am1

Goodwill (Change In Carrying Amount Of Goodwill 2) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Goodwill [Line Items]
Goodwill, net, beginning	$1,055,262
Currency translation adjustment	-14,665
Goodwill, net, ending	1,181,455
U.S. & Canada [Member]
Goodwill [Line Items]
Goodwill, net, beginning	1,055,262
Currency translation adjustment	-2,096
Goodwill, net, ending	1,053,166
International [Member]
Goodwill [Line Items]
Goodwill, net, beginning
Currency translation adjustment	-12,569
Goodwill, net, ending	128,289
incadea [Member]
Goodwill [Line Items]
Acquisition	140,858
Goodwill, net, ending	140,858
incadea [Member] | International [Member]
Goodwill [Line Items]
Acquisition	$140,858

Long_Term_Debt_Schedule_of_Lon

Long Term Debt (Schedule of Long Term Debt- Net Carrying Value) (Details) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Long-term Debt, Gross	$889,341
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	8,195
Other [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	290
Term Loan B Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	539,724
1.50% Senior Convertible Notes Due 2017 [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	181,132
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	$160,000

Long_Term_Debt_Credit_Agreemen

Long Term Debt (Credit Agreement 2014) (Details) (USD $)	Mar. 31, 2015	Feb. 28, 2014
In Millions, unless otherwise specified
Line of Credit Facility [Line Items]
Credit facility borrowing capacity		$800
Consolidated first lien leverage ratio		4
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity	225	225
Maximum increase in credit facility		200
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity		25
Swing Line Loans [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity		25
Revolving Loans and Letters of Credit in Canadian Dollars [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity		35
Term Loan B Credit Facility [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity		$575

Long_Term_Debt_Revolving_Credi

Long Term Debt (Revolving Credit Facility) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Feb. 28, 2014
Line of Credit Facility [Line Items]
Credit facility borrowing capacity		$800,000,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Revolving credit facility - available	65,000,000
Issuance costs remaining to be amortized	4,500,000
Revolving credit facility amount	160,000,000
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity		25,000,000
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity	225,000,000	225,000,000
Maturity date of debt	28-Feb-19
Revolving Credit Facility [Member] | ABR Calculated With Federal Funds [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
Revolving Credit Facility [Member] | ABR Calculated With LIBOR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Revolving Credit Facility [Member] | Minimum [Member] | ABR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
Revolving Credit Facility [Member] | Minimum [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.50%
Revolving Credit Facility [Member] | Maximum [Member] | ABR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.25%
Revolving Credit Facility [Member] | Maximum [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.25%
Revolving Loans and Letters of Credit in Canadian Dollars [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity		$35,000,000
Revolving Loans and Letters of Credit in Canadian Dollars [Member] | ABR Calculated With CDOR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
Revolving Loans and Letters of Credit in Canadian Dollars [Member] | ABR Calculated With CDOR, Average Of Discount Rate Quatations [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.10%
Revolving Loans and Letters of Credit in Canadian Dollars [Member] | Minimum [Member] | ABR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%
Revolving Loans and Letters of Credit in Canadian Dollars [Member] | Minimum [Member] | CDOR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.50%
Revolving Loans and Letters of Credit in Canadian Dollars [Member] | Maximum [Member] | ABR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.25%
Revolving Loans and Letters of Credit in Canadian Dollars [Member] | Maximum [Member] | CDOR [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.25%

Long_Term_Debt_Term_Loan_B_Fac

Long Term Debt (Term Loan B Facility) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Feb. 28, 2014	Dec. 31, 2014
Line of Credit Facility [Line Items]
Credit facility borrowing capacity			$800,000,000
Principal payments on term loan B credit facility	22,604,000
Total interest expense	9,628,000	5,910,000
Term Loan B Credit Facility [Member]
Line of Credit Facility [Line Items]
Credit facility borrowing capacity			575,000,000
Maturity date of debt	28-Feb-21
Required principal payment	0
Issuance costs remaining to be amortized	800,000
Effective interest rate	3.25%
Principal amount	548,563,000			548,563,000
Unamortized discount	8,839,000			9,213,000
Net carrying value	$539,724,000			$539,350,000
Term Loan B Credit Facility [Member] | ABR [Member]
Line of Credit Facility [Line Items]
Interest rate, floor percentage	1.75%
Term Loan B Credit Facility [Member] | ABR [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.50%
Term Loan B Credit Facility [Member] | ABR [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.75%
Term Loan B Credit Facility [Member] | LIBOR [Member]
Line of Credit Facility [Line Items]
Interest rate, floor percentage	0.75%
Term Loan B Credit Facility [Member] | LIBOR [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.50%
Term Loan B Credit Facility [Member] | LIBOR [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.75%

Long_Term_Debt_Senior_Converti

Long Term Debt (Senior Convertible Notes) (Details) (USD $)	3 Months Ended
Share data in Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Mar. 05, 2012
Debt Instrument [Line Items]
Percentage above the conversion price for surrender	130.00%
Debt instrument surrender, minimum trading days	20 days
Debt instrument surrender, trading days	30 days
"If-converted value" in excess of principal	$6,200,000
Surrender conversion price	$48.58
Debt instrument convertible stock price trigger	$37.37
Antidilutive securities excluded from diluted earnings per share	4,308	6,426
Warrant transactions, initial strike price	$46.18
Senior Convertible Notes [Member]
Debt Instrument [Line Items]
Antidilutive securities excluded from diluted earnings per share	433	1,366
Warrants Related to Senior Convertible Notes [Member]
Debt Instrument [Line Items]
Antidilutive securities excluded from diluted earnings per share		426
1.50% Senior Convertible Notes Due 2017 [Member]
Debt Instrument [Line Items]
Principal amount	200,000,000		200,000,000	200,000,000
Interest rate of senior convertible notes				1.50%
Maturity date of debt	15-Mar-17
Unamortized discount	18,868,000		21,094,000
Net carrying value	181,132,000		178,906,000
Issuance costs remaining to be amortized	$2,300,000

Long_Term_Debt_Notes_Payable_D

Long Term Debt (Notes Payable) (Details) (USD $)	Mar. 31, 2015
Debt Instrument [Line Items]
Aggregate amount of promissory notes	$889,341,000
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Note payable	8,700,000
Aggregate amount of promissory notes	$8,195,000

Long_Term_Debt_Schedule_Of_Int

Long Term Debt (Schedule Of Interest Expense) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Debt Instrument [Line Items]
Amortization of debt issuance costs and debt discount	$3,191	$3,170
Other	282	65
Total interest expense	9,628	5,910
1.50% Senior Convertible Notes Due 2017 [Member]
Debt Instrument [Line Items]
Coupon interest	750	750
Amortization of debt discount	2,226	2,082
Amortization of debt issuance costs	275	258
Term Loan B Credit Facility [Member]
Debt Instrument [Line Items]
Coupon interest	4,482	1,789
Amortization of debt issuance costs and debt discount	405	134
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Coupon interest	866
Commitment fee	57	136
Amortization of debt issuance costs	$285	$696

Business_Combinations_Narrativ

Business Combinations (Narrative) (Details)	3 Months Ended		0 Months Ended		3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2015	Jan. 09, 2015	Jan. 09, 2015	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2015	Jan. 09, 2015	Jan. 09, 2015
	USD ($)	ASR Pro, Inc. [Member]	incadea [Member]	incadea [Member]	incadea [Member]	incadea [Member]	incadea [Member]	incadea [Member]	incadea [Member]
		USD ($)	USD ($)	GBP (£)	USD ($)	USD ($)	EUR (€)	USD ($)	EUR (€)
Business Acquisition [Line Items]
Business acquisition date					9-Jan-15
Percent of voting interest acquired					1.00%			99.00%	99.00%
Cash consideration			$181.50	£ 120.3
Professional fees associated with acquisition					3
Cash acquired included in current assets								6.9
Foreign currency translation losses					4.8	1.9
Contingent consideration, fair value		2.1			1.4		1.3	1.5	1.3
Revenue from date of acquisition through period end	12.5
Loss from operations from date of acquisition through period end	$6.40

Business_Combinations_Purchase

Business Combinations (Purchase Price Allocation) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Business Acquisition [Line Items]
Goodwill	$1,181,455	$1,055,262
incadea [Member]
Business Acquisition [Line Items]
Current assets	38,925
Property and equipment	3,487
Non-current assets	5,947
Intangible assets	74,894
Goodwill	140,858
Total assets acquired	264,111
Liabilities assumed - current	-42,446
Liabilities assumed - non-current	-40,167
Net assets acquired	$181,498

Business_Combinations_Acquired

Business Combinations (Acquired Intangible Assets And Weighted-Average Useful Lives) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets, Amount	$74,894
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets, Amount	16,538
Weighted-Average Useful Life	15 years
Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets, Amount	42,290
Weighted-Average Useful Life	8 years
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total acquired identifiable intangible assets, Amount	$16,066
Weighted-Average Useful Life	8 years

Business_Combinations_Unaudite

Business Combinations (Unaudited Pro Forma Summary Of Operations) (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Business Combinations [Abstract]
Net revenue	$252,754	$214,911
Net (loss) income	($15,621)	($27,868)
Basic net (loss) income per share	($0.29)	($0.53)
Diluted net (loss) income per share	($0.29)	($0.53)

Accrued_Liabilities_Other_Comp

Accrued Liabilities - Other (Components Of Accrued Liabilities - Other) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accrued Liabilities - Other [Abstract]
Professional fees	$8,727	$7,143
Interest payable	4,867	6,069
Digital marketing - advertising and direct service costs	3,758	6,021
Acquired contingent consideration		5,250
Acquisition related compensation	805	2,615
Customer deposits	3,185	2,903
Sales taxes	2,618	2,453
Revenue share	1,930	1,212
Computer and office equipment, furniture and fixtures	636	1,174
Income taxes payable	6,204	458
State DMV transaction fees	815	756
Other	14,178	7,540
Total accrued liabilities - other	$47,723	$43,594

Net_Income_Loss_Per_Share_Narr

Net Income (Loss) Per Share (Narrative) (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Debt instrument convertible stock price trigger	$37.37
Warrant transactions, initial strike price	$46.18
Antidilutive securities excluded from diluted earnings per share	4,308	6,426
Senior Convertible Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from diluted earnings per share	433	1,366

Net_Income_Loss_Per_Share_Comp

Net Income (Loss) Per Share (Computation Of Basic And Diluted Net Income Per Share) (Details) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net Income (Loss) Per Share [Abstract]
Net loss	($22,728)	($11,642)
Weighted average common stock outstanding (basic)	54,441	47,351
Weighted average common stock outstanding (diluted)	54,441	47,351
Basic net loss per share	($0.42)	($0.25)
Diluted net loss per share	($0.42)	($0.25)

Net_Income_Loss_Per_Share_Secu

Net Income (Loss) Per Share (Securities Excluded From Computation Of Diluted Earnings Per Share) (Details)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive awards	4,308	6,426
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive awards	2,764	3,379
Restricted Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive awards	939	948
Performance Stock Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive awards	172	307
Senior Convertible Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive awards	433	1,366
Warrants Related to Senior Convertible Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive awards		426

StockBased_Compensation_Expens2

Stock-Based Compensation Expense (Summary Of Stock-Based Compensation Expense By Expense Category And By Award Type) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$5,315	$4,123
Cost Of Revenue [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	327	276
Research And Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	923	752
Selling, General And Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$4,065	$3,095

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Income Taxes [Abstract]
Accrued interest and penalties related to tax positions	$0.50		$0.20
Liability for uncertain tax positions that would affect the effective rate upon resolution	$2.70		$1.20
Effective tax rate	27.90%	28.50%

Commitments_And_Contingencies_

Commitments And Contingencies (Narrative) (Details) (USD $)	Mar. 31, 2015
In Millions, unless otherwise specified
Retail Sales Tax [Member]
Loss Contingencies [Line Items]
Estimate of possible loss	$0.90
Estimate of possible loss for additional assessments in subsequent periods	0.8
Severance [Member]
Loss Contingencies [Line Items]
Estimate of possible loss	11.7
Change Of Control And Employee Severance [Member]
Loss Contingencies [Line Items]
Estimate of possible loss	$3.30

Recovered_Sheet1

Interim Financial Data By Segment (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
	segment
Revenue, Major Customer [Line Items]
Number of reportable segments	2
Long-lived assets	$233.70	32.3
Assets, Total [Member] | Geographic Concentration Risk [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk	10.00%	1.00%
Sales Revenue, Net [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk	100.00%		100.00%
Sales Revenue, Net [Member] | Canada [Member]
Revenue, Major Customer [Line Items]
Percentage of concentration risk			6.00%

Interim_Financial_Date_By_Segm

Interim Financial Date By Segment (Schedule of Revenue from External Customers by Geographic Areas) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$252,754	$158,808
Sales Revenue, Net [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of Total	100.00%	100.00%
U.S. & Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	240,230	158,808
U.S. & Canada [Member] | Sales Revenue, Net [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of Total	95.00%	100.00%
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$12,524
International [Member] | Sales Revenue, Net [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Percentage of Total	5.00%	0.00%

Recovered_Sheet2

Interim Financial Data By Segment (Supplemental Disclosure Of Revenue By Service Type) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenue from External Customer [Line Items]
Net revenue	$252,754	$158,808
Subscription Services [Member]
Revenue from External Customer [Line Items]
Net revenue	100,283	61,969
Transaction Services [Member]
Revenue from External Customer [Line Items]
Net revenue	84,497	77,735
Advertising and Other Revenue [Member]
Revenue from External Customer [Line Items]
Net revenue	55,450	19,104
International Services [Member]
Revenue from External Customer [Line Items]
Net revenue	12,524
U.S. & Canada [Member]
Revenue from External Customer [Line Items]
Net revenue	$240,230	$158,808

Interim_Financial_Data_By_Segm2

Interim Financial Data By Segment (Reconciliation of Operating Profit (Loss) from Segments to Consolidated) (Details) (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Loss from operations	($18,439,000)		($22,633,000)
Interest income	71,000		100,000
Interest expense	-9,628,000		-5,910,000
Other (expense) income, net	-5,712,000		709,000
Gain on sale of investment			9,828,000
Earnings from equity method investment, net	2,200,000		1,625,000
Loss before benefit from income taxes, net	-31,508,000		-16,281,000
Segment integration costs	2,500,000
U.S. & Canada [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Loss from operations	-12,086,000	[1]	-22,633,000	[1]
International [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Loss from operations	($6,353,000)
[1]	Includes $2.5 million of costs incurred in conjunction with international segment integration activities.

Interim_Financial_Data_By_Segm3

Interim Financial Data By Segment (Total Assets By Segment) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$2,334,655	$2,361,075
U.S. & Canada [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,089,520	2,361,075
International [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$245,135