2.4.0.811401 - Disclosure - Income Taxestruefalsefalse1false falsefalseDuration_1_1_2013_To_6_30_2013http://www.sec.gov/CIK0001333513duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_IncomeTaxDisclosureAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Income Taxes [Abstract]2false 2us-gaap_IncomeTaxDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div> <div style="margin-left:0pt;margin-right:0pt;"> 14. Income Taxes        We file a consolidated U.S. income tax return and tax returns in various state and local jurisdictions. Certain of our subsidiaries also file income tax returns in Canada. The Canadian Revenue Agency is reviewing our 2009 and 2010 tax return filings. The Internal Revenue Service has concluded a review of our consolidated federal income tax returns through December 31, 2007 and is currently reviewing our consolidated federal income tax returns for 2009, 2010 and 2011. New York has concluded their review of our 2006 (amended) and 2007 state tax returns and is currently reviewing our 2008 and 2009 state returns. Our amended return filings in California and Pennsylvania are under review by each of the respective states. In addition, we are appealing Pennsylvania’s assessment to our 2007, 2008 and 2009 tax return filings. All of our other significant taxing jurisdictions are closed for years prior to 2008. The total liability recorded for uncertain tax positions that would affect our effective tax rate upon resolution of the uncertain tax position, as of June 30, 2013 and December 31, 2012, was $0.5 million.       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 statement of operations. As of both June 30, 2013 and December 31, 2012, accrued interest and penalties related to tax positions taken on our tax returns was approximately $0.1 million.    The net provision from income taxes for the three months ended June 30, 2013 of $1.9 million consisted of $0.5 million of federal income tax expense, $0.3 million of state income tax expense and $1.1 million of tax expense for our Canadian subsidiary.     The net provision from income taxes for the six months ended June 30, 2013 of $0.7 million consisted of $0.8 million of federal income tax benefit and $1.5 million of tax expense for our Canadian subsidiary. </div> </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 false0Income TaxesfalseIncome TaxesUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.dealertrack.com/2010-09-30/role/DisclosureIncomeTaxes12