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Acquisitions (Portec Rail Products, Inc. Unaudited Pro Forma Results) (Table) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
0 Months Ended 12 Months Ended 0 Months Ended
Dec. 15, 2010
Portec Rail Products, Inc. [Member]
Dec. 31, 2010
Portec Rail Products, Inc. [Member]
Mar. 23, 2010
Interlocking Deck Systems International, LLC [Member]
Business Acquisition [Line Items]      
Business Acquisition, Pro Forma Information, Description The unaudited pro forma results for the periods presented below are prepared as if the transaction occurred as of January 1, 2010. Pro forma adjustments exclude operating results of the divested rail joint business, and include depreciation and amortization and other adjustments in connection with the acquisition   The pro forma results for this acquisition were not material to the Company's financial results
Total net sales   $ 564,028  
Earnings before income taxes   32,557  
Net income   $ 21,817  
Basic earnings per share   $ 2.13  
Dilutive earnings per share   $ 2.11