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INCOME TAXES
3 Months Ended
Dec. 31, 2013
INCOME TAXES  
Income Tax Disclosure
12.  INCOME TAXES

Our provision for income taxes is based on an estimated effective annual income tax rate, as well as the impact of discrete items, if any, occurring during the period. The provision differs from income taxes currently payable because certain items of income and expense are recognized in different periods for financial statement purposes than for tax return purposes. We reduce deferred tax assets by a valuation allowance when it is more likely than not that some or all of the deferred tax assets will not be realized.

Our effective tax rate for the three months ended December 31, 2013 decreased to -4.9 % from 33.2% for the same prior year period. The current year effective tax rate was positively impacted by the settlement of income tax audits for fiscal years 1999, and 2006 through 2009.

At December 31, 2013, our gross UTBs totaled $69.2 million, excluding related accrued interest and penalties of $11.1 million. At December 31, 2013, $52.3 million of our UTBs, including related accrued interest, penalties, and indirect effects in other jurisdictions, would affect our effective tax rate if recognized. During the three months ended December 31, 2013, our UTBs decreased $40.0 million and related interest and penalties decreased $12.2 million. We do not believe our total UTBs will change significantly during the next twelve months.

As of December 31, 2013 we effectively settled audits with the US tax authorities related to our fiscal year 1999 and 2006 through 2009 tax years.  As a result of the settlement, we reduced our tax provision by $29.6 million and our UTBs by $33.1 million, inclusive of related interest, penalties and indirect effects in other jurisdictions.

We are also subject to examination in various state and foreign jurisdictions. We believe we have recorded all appropriate provisions for outstanding issues for all jurisdictions and open years. However, we can give no assurance that taxing authorities will not propose adjustments that increase our tax liabilities.