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Income Taxes | 9 Months Ended
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Sep. 30, 2014
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Income Taxes | 3. Income Taxes TDS' overa ll effective tax rate s on Income (loss) before income taxes for the three and nine months ended September 30, 2014 were not meaningful, and for the three and nine months ended September 30, 2013 w ere 37.8% an d 42.7%, respectively. The effective tax rates for the three and nine months ended September 30, 2014 were negative and not meaningful due to the impact of several items on tax expense, including: A $40.8 million tax expense related to a valuation allowance recorded against certain state deferred tax assets. In each interim period, TDS evaluates the available positive and negative evidence to assess whether deferred tax assets are realizable, on a more likely than not basis. In the three months ended September 30, 2014, based on revised forecasts of future state income, TDS concluded that the negative evidence related to the realization of certain state deferred tax assets outweighed the positive evidence. Accordingly, TDS determined that such deferred tax assets related to certain states were not realizable, on a more likely than not basis. A $10.8 million tax benefit due to a valuation allowance reduction for federal net operating losses previously limited under loss utilization rules. Due to the shutdown of Airadigm's consumer wireless business and result ing intercompany sale of certain assets by Airadigm to U.S. Cellular during the period (as described in Note 5 — Acquisitions, Divestitures and Exchanges), Airadigm is expected to recognize sufficient taxable income for TDS to utilize the previously limited net operating loss es. A $19.9 million expense related to a portion of the goodwill impairment of the HMS reporting unit recorded in the third quarter of 2014, which is nondeductible for income tax purposes. See Note 6 — Intangible Assets for additional information related to the goodwill impairment. The effective tax rate for the nine months ended September 30, 2013 reflect ed incremental deferred tax expense related to the NY1 & NY2 Deconsolidation (as described in Note 7 — Investments in Unconsolidated Entities) and the Divestiture Transaction (as described in Note 5 — Acquisitions, Divestitures and Exchanges) in 2013.

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- Definition 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. + References 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 + Details
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