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Earnings Per Share (Details)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Earnings Per Share [Abstract]    
Denominator for Basic Earnings Per Share (in shares) 44,193,267 44,545,092
Dilutive Effect of Stock Options (in shares) 155,130 83,459
Dilutive Effect of Restricted Stock (in shares) 71,952 58,081
Denominator for Diluted Earnings Per Share (in shares) 44,420,349 44,686,632
Antidilutive Stock Options and Restricted Stock Outstanding 862 497,037