Income Taxes	9 Months Ended
Sep. 30, 2011
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Successor Company Our quarterly income tax (provision) benefit is measured using an estimated annual effective tax rate for the period, adjusted for discrete items that occurred within the periods presented. For the three months ended September 30, 2011, we recorded an income tax provision of $0.7 million, which represents an effective tax rate of 3.1%. For the nine months ended September 30, 2011, we recorded an income tax benefit of $142.8 million, which represents an effective tax rate of 21.4%. The effective tax rate for the three months ended September 30, 2011 differs from the federal statutory rate of 35.0% primarily due to changes in deferred tax liabilities related to the stock basis of subsidiaries, changes in recorded valuation allowances, increases in the liability for unrecognized tax benefits and tax planning associated with Internal Revenue Code ("IRC") Section 108 and other adjustments related to the filing of our consolidated federal income tax return. The effective tax rate for the nine months ended September 30, 2011 differs from the federal statutory rate of 35.0% primarily due to non-deductible goodwill impairment, changes in deferred tax liabilities related to the stock basis of subsidiaries, changes in recorded valuation allowances, decreases in the liability for unrecognized tax benefits and tax planning associated with IRC Section 108 and other adjustments related to the filing of our consolidated federal income tax return. The Company recorded a goodwill impairment charge of $801.1 million during the second quarter of 2011, of which $457.2 million related to non-deductible goodwill. Impairment of non‑deductible goodwill reduced the income tax benefit of the impairment by $174.1 million and reduced our effective tax rate by approximately 26.1% for the nine months ended September 30, 2011. Upon emergence from bankruptcy, the Company recorded deferred tax liabilities related to the excess of the financial statement carrying amount over the tax basis of investments in certain subsidiaries. The estimated annual effective tax rate for the current year includes an estimate of the change in these deferred tax liabilities for the year. The goodwill impairment charge reduced the financial statement carrying amount of investments in certain subsidiaries, which also caused a reduction in these deferred tax liabilities. The resulting reduction in income tax expense for the three and nine months ended September 30, 2011 related to the change in these deferred tax liabilities was $6.3 million and $85.1 million, respectively, which (decreased) increased the effective tax rate for the three and nine months ended September 30, 2011 by approximately (27.3)% and 12.8%, respectively. The discharge of our debt in conjunction with our emergence from Chapter 11 resulted in a tax gain of $5,016.6 million. Generally, the discharge of a debt obligation for an amount less than the adjusted issue price creates cancellation of debt income ("CODI"), which must be included in a taxpayer's taxable income. In accordance with IRC Section 108, in lieu of recognizing taxable income from bankruptcy-related CODI, the Company is required to reduce existing tax attributes. In conjunction with the filing of our consolidated federal tax return for the year ended December 31, 2010, the Company made an election under IRC Section 108(b)(5) to first apply this reduction to certain amortizable and depreciable property. As a result of this election, the Company recognized an increase in deferred tax assets related to net operating losses of approximately $325.9 million. These increases were offset by a decrease in the basis of amortizable and depreciable property. The estimated annual effective tax rate for the current year includes an estimate of the valuation allowance expected to be necessary at the end of the year for originating deferred tax assets. The goodwill impairment charge during the second quarter of 2011 gave rise to a deferred tax asset whose realization did not meet a more-likely-than-not threshold, requiring a valuation allowance. In addition, changes in deferred tax assets and liabilities primarily related to the filing of our consolidated federal tax return resulted in increases to the valuation allowance during the three months ended September 30, 2011. The resulting increase in income tax expense for the three and nine months ended September 30, 2011 was $14.1 million and $60.7 million, respectively, which increased (decreased) the effective tax rate for the three and nine months ended September 30, 2011 by approximately 61.6% and (9.1)%, respectively. With the filing of our consolidated federal income tax return for the year ended December 31, 2010, the Company recorded an income tax benefit of $23.6 million for both the three and nine months ended September 30, 2011 primarily related to tax planning associated with IRC Section 108 and other adjustments associated with the filing of our consolidated tax return, which resulted in a (decrease) increase in our effective tax rate of (103.1)% and 3.5% for the three and nine months ended September 30, 2011, respectively. On June 15, 2011, the federal statute of limitations closed for a tax year in which a prior uncertain tax position related to revenue recognition was established. As a result, the Company decreased its liability for unrecognized tax benefits associated with this federal and state uncertain tax position by $28.2 million and recorded a tax benefit of $24.0 million for the nine months ended September 30, 2011, which resulted in an increase to our effective tax rate of 3.6% for the nine months ended September 30, 2011. The Company has increased its liability for unrecognized tax benefits during the three months ended September 30, 2011 by $7.4 million, which resulted in an increase (decrease) to our effective tax rate of 29.6% and (1.0)% for the three and nine months ended September 30, 2011, respectively, primarily related to uncertainty in the realization of certain tax attributes available for reduction under IRC Section 108. The increase also relates to the exclusion of non-business income currently under audit in the state of Illinois. If the Illinois audit is resolved favorably within the next twelve months, the total amount of unrecognized tax benefits reported above could decrease by approximately $1.8 million. For the three and eight months ended September 30, 2010, we recorded an income tax benefit of $68.2 million and $626.8 million, respectively, which represents an effective tax rate of 14.9% and 41.0%, respectively. As a result of the goodwill and non-goodwill intangible asset impairment charges during the three and eight months ended September 30, 2010, we recognized a non-deductible adjustment to our effective tax rate of $101.0 million and $302.8 million for the three and eight months ended September 30, 2010, respectively. Internal Revenue Code Section 382 (“Section 382”) imposes limitations on the availability of net operating losses and other corporate tax attributes as ownership changes occur. Under Section 382, potential limitations are triggered when there has been an ownership change, which is generally defined as a greater than 50% change in stock ownership (by value) over a three-year prescribed testing period. Such change in ownership will restrict the Company’s ability to use certain net operating losses and other corporate tax attributes in the future. However, the ownership change does not constitute a change in control under any of the Company’s debt agreements or other contracts. The Company experienced an ownership change in March 2009. Based upon the closing of the SEC filing period for Schedules 13-G and review of these schedules filed through February 15, 2010, the Company determined that, more likely than not, a certain “check-the-box” election was effective prior to the date of the 2009 ownership change under Section 382. As a result, the Company recorded a tax benefit for the reversal of a liability for unrecognized tax benefit of $351.9 million in the condensed consolidated statement of operations for the eight months ended September 30, 2010, which was the primary driver of our effective tax rate for the period. Predecessor Company For the one month ended January 31, 2010, the Predecessor Company recorded an income tax provision of $(917.5) million which represents an effective tax rate of 11.7%.

Income Taxes

Successor Company

Our quarterly income tax (provision) benefit is measured using an estimated annual effective tax rate for the period, adjusted for discrete items that occurred within the periods presented.

For the three months ended September 30, 2011, we recorded an income tax provision of $0.7 million, which represents an effective tax rate of 3.1%. For the nine months ended September 30, 2011, we recorded an income tax benefit of $142.8 million, which represents an effective tax rate of 21.4%. The effective tax rate for the three months ended September 30, 2011 differs from the federal statutory rate of 35.0% primarily due to changes in deferred tax liabilities related to the stock basis of subsidiaries, changes in recorded valuation allowances, increases in the liability for unrecognized tax benefits and tax planning associated with Internal Revenue Code ("IRC") Section 108 and other adjustments related to the filing of our consolidated federal income tax return. The effective tax rate for the nine months ended September 30, 2011 differs from the federal statutory rate of 35.0% primarily due to non-deductible goodwill impairment, changes in deferred tax liabilities related to the stock basis of subsidiaries, changes in recorded valuation allowances, decreases in the liability for unrecognized tax benefits and tax planning associated with IRC Section 108 and other adjustments related to the filing of our consolidated federal income tax return.

The Company recorded a goodwill impairment charge of $801.1 million during the second quarter of 2011, of which $457.2 million related to non-deductible goodwill. Impairment of non‑deductible goodwill reduced the income tax benefit of the impairment by $174.1 million and reduced our effective tax rate by approximately 26.1% for the nine months ended September 30, 2011.

Upon emergence from bankruptcy, the Company recorded deferred tax liabilities related to the excess of the financial statement carrying amount over the tax basis of investments in certain subsidiaries. The estimated annual effective tax rate for the current year includes an estimate of the change in these deferred tax liabilities for the year. The goodwill impairment charge reduced the financial statement carrying amount of investments in certain subsidiaries, which also caused a reduction in these deferred tax liabilities. The resulting reduction in income tax expense for the three and nine months ended September 30, 2011 related to the change in these deferred tax liabilities was $6.3 million and $85.1 million, respectively, which (decreased) increased the effective tax rate for the three and nine months ended September 30, 2011 by approximately (27.3)% and 12.8%, respectively.

The discharge of our debt in conjunction with our emergence from Chapter 11 resulted in a tax gain of $5,016.6 million. Generally, the discharge of a debt obligation for an amount less than the adjusted issue price creates cancellation of debt income ("CODI"), which must be included in a taxpayer's taxable income. In accordance with IRC Section 108, in lieu of recognizing taxable income from bankruptcy-related CODI, the Company is required to reduce existing tax attributes. In conjunction with the filing of our consolidated federal tax return for the year ended December 31, 2010, the Company made an election under IRC Section 108(b)(5) to first apply this reduction to certain amortizable and depreciable property. As a result of this election, the Company recognized an increase in deferred tax assets related to net operating losses of approximately $325.9 million. These increases were offset by a decrease in the basis of amortizable and depreciable property.

The estimated annual effective tax rate for the current year includes an estimate of the valuation allowance expected to be necessary at the end of the year for originating deferred tax assets. The goodwill impairment charge during the second quarter of 2011 gave rise to a deferred tax asset whose realization did not meet a more-likely-than-not threshold, requiring a valuation allowance. In addition, changes in deferred tax assets and liabilities primarily related to the filing of our consolidated federal tax return resulted in increases to the valuation allowance during the three months ended September 30, 2011. The resulting increase in income tax expense for the three and nine months ended September 30, 2011 was $14.1 million and $60.7 million, respectively, which increased (decreased) the effective tax rate for the three and nine months ended September 30, 2011 by approximately 61.6% and (9.1)%, respectively.

With the filing of our consolidated federal income tax return for the year ended December 31, 2010, the Company recorded an income tax benefit of $23.6 million for both the three and nine months ended September 30, 2011 primarily related to tax planning associated with IRC Section 108 and other adjustments associated with the filing of our consolidated tax return, which resulted in a (decrease) increase in our effective tax rate of (103.1)% and 3.5% for the three and nine months ended September 30, 2011, respectively.

On June 15, 2011, the federal statute of limitations closed for a tax year in which a prior uncertain tax position related to revenue recognition was established. As a result, the Company decreased its liability for unrecognized tax benefits associated with this federal and state uncertain tax position by $28.2 million and recorded a tax benefit of $24.0 million for the nine months ended September 30, 2011, which resulted in an increase to our effective tax rate of 3.6% for the nine months ended September 30, 2011.

The Company has increased its liability for unrecognized tax benefits during the three months ended September 30, 2011 by $7.4 million, which resulted in an increase (decrease) to our effective tax rate of 29.6% and (1.0)% for the three and nine months ended September 30, 2011, respectively, primarily related to uncertainty in the realization of certain tax attributes available for reduction under IRC Section 108. The increase also relates to the exclusion of non-business income currently under audit in the state of Illinois. If the Illinois audit is resolved favorably within the next twelve months, the total amount of unrecognized tax benefits reported above could decrease by approximately $1.8 million.

For the three and eight months ended September 30, 2010, we recorded an income tax benefit of $68.2 million and $626.8 million, respectively, which represents an effective tax rate of 14.9% and 41.0%, respectively. As a result of the goodwill and non-goodwill intangible asset impairment charges during the three and eight months ended September 30, 2010, we recognized a non-deductible adjustment to our effective tax rate of $101.0 million and $302.8 million for the three and eight months ended September 30, 2010, respectively.

Internal Revenue Code Section 382 (“Section 382”) imposes limitations on the availability of net operating losses and other corporate tax attributes as ownership changes occur. Under Section 382, potential limitations are triggered when there has been an ownership change, which is generally defined as a greater than 50% change in stock ownership (by value) over a three-year prescribed testing period. Such change in ownership will restrict the Company’s ability to use certain net operating losses and other corporate tax attributes in the future. However, the ownership change does not constitute a change in control under any of the Company’s debt agreements or other contracts. The Company experienced an ownership change in March 2009.

Based upon the closing of the SEC filing period for Schedules 13-G and review of these schedules filed through February 15, 2010, the Company determined that, more likely than not, a certain “check-the-box” election was effective prior to the date of the 2009 ownership change under Section 382. As a result, the Company recorded a tax benefit for the reversal of a liability for unrecognized tax benefit of $351.9 million in the condensed consolidated statement of operations for the eight months ended September 30, 2010, which was the primary driver of our effective tax rate for the period.

Predecessor Company

For the one month ended January 31, 2010, the Predecessor Company recorded an income tax provision of $(917.5) million which represents an effective tax rate of 11.7%.