Quarterly report pursuant to Section 13 or 15(d)

Income Taxes

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Income Taxes
9 Months Ended
Sep. 30, 2011
Income Taxes [Abstract]  
Income Taxes
10. Income Taxes
We make estimates and judgments in determining income tax expense for financial statement purposes. These estimates and judgments occur in the calculation of certain tax assets and liabilities, which arise from differences in the timing of recognition of revenue and expense for tax and financial statement purposes. Our tax provision for interim periods is derived using an estimate of our annual effective rate, adjusted for any material items.
The acquisition of the stock of SLN and MTS resulted in an additional net deferred tax liability of $16.9 million. This net liability includes a deferred tax liability of $23.8 million related to indefinite lived intangibles, a deferred tax asset, net of valuation allowance, of $6.4 million related to net operating loss carryforwards and other miscellaneous deferred tax assets of $0.5 million. These net operating loss carryforwards are subject to a Section 382 limitation. The limitation on these pre-acquisition net operating loss carryforwards will fully expire in 2020.