Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We are subject to federal and state income taxes in the United States and federal and provincial income taxes in Canada. As of September 30, 2020 and December 31, 2019, we have provided a valuation allowance against our net deferred tax assets that we believe, based on the weight of available evidence, are not more likely than not to be realized. Therefore, no material current tax liability or expense has been recorded in the condensed consolidated financial statements. We have accumulated federal tax losses of approximately $1,137.6 million as of December 31, 2019, which are available to reduce future taxable income. We have accumulated state tax losses of approximately $34.3 million (tax effected) as of December 31, 2019. We recorded income tax expense of $0.4 million for the three months ended September 30, 2020 and an income tax benefit of $8.1 million for the nine months ended September 30, 2020. The income tax benefit for the nine months ended September 30, 2020 was primarily a result of a $9.7 million income tax benefit related to the $71.5 million non-cash impairment we recorded during the nine months ended September 30, 2020 related to the Trulia trade names and trademarks intangible asset. For additional information about the non-cash impairment, see Note 10 to our condensed consolidated financial statements. This income tax benefit was partially offset by an immaterial amount of state income tax expense recorded for the nine months ended September 30, 2020.

The 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.