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Income Taxes
6 Months Ended
Jun. 30, 2011
INCOME TAXES  
INCOME TAXES
18. INCOME TAXES

The Company's effective income tax rate for the three months ended June 30, 2011 and 2010 was 30.4% and 36.1%, respectively.  The Company's effective income tax rate for the six months ended June 30, 2011 and 2010 was 30.5% and 35.7%, respectively.  The decline in the effective tax rate is principally attributable to the impact of relatively lower statutory income tax rates in the foreign jurisdictions associated with the Canadian and United Kingdom locations acquired in the Portec Rail business combination, effective December 15, 2010, and the release of $128,000 of reserves for uncertain tax positions due to the expiration of the statute of limitations.