Income Taxes

6 Months Ended

Jun. 30, 2011

Income Taxes [Abstract]

Income Taxes

12. Income Taxes

Income taxes for the six months ended June 30,2011and 2010amounted to an expense of $13,095 and $20,152, respectively. The Company's effective tax rate was 44.2% for the six months endedJune 30, 2011 compared with 63.6% during the same period in 2010. The Company's effectivetax rate is affected by deferred tax expense resulting from differences between the book and income tax basis of its investment in EBS Master,noncontrolling interest, changes in the Company's valuation allowances and other factors. Changes in valuation allowances resulted in $1,413 and $5,762of additional income tax expense for the six months endedJune 30,2011 and2010, respectively.

A reconciliation of the beginning and ending liability for uncertain tax positions is as follows:

Unrecognized benefit January 1, 2011	$	1,368
Decrease in six months ended June 30, 2011		(6)
Unrecognized benefit June 30, 2011	$	1,362

The Company decreased its liability for uncertain tax positions during the six months ended June 30, 2011 following the lapse of the statute of limitations on an open year.The Company does not currently anticipate that the total amount of uncertain tax positions will significantly increase or decrease in the next twelve months.

The Company recognizes interest income and expense (if any) related to income taxes as a component of income tax expense. Interest of $42 has been included in the tax provision for the six months endedJune 30,2011.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various states and foreign jurisdictions. The Company's U.S. federal and state income tax returns for the tax years 2007 and beyond remain subject to examination by the Internal Revenue Service. With respect to state and local jurisdictions and countries outside of the United States, the Company and its subsidiaries are typically subject to examination for a number of years after the income tax returns have been filed. Although the outcome of tax audits is always uncertain, the Company believes that adequate amounts of tax, interest and penalties have been provided for in the accompanying unaudited condensed consolidated financial statements for any adjustments that may be incurred due to state, local or foreign audits.