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           Stock Based and Deferred Compensation (Tables) 
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        3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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           Mar. 31, 2015 
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| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of compensation expense and stock award activity | 
 Below is a summary of compensation expense and stock award activity (in thousands): 
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| Summary of stock based compensation agreements | 
 The following table includes additional information regarding our Plan (dollars in thousands): 
 (1)        Includes options outstanding and unvested restricted stock and performance-based awards and restricted stock units. 
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- Definition 
          Schedule of Stock-based Compensation Expense and Cash Proceeds Received from Share-based Payment Awards [Table Text Block] No definition available. 
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- Details 
          
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- Definition 
          Tabular disclosure of the total compensation cost related to nonvested awards not yet recognized and the weighted-average period over which it is expected to be recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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