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Stockholders' Equity (Narrative) (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2015
USD ($)
$ / shares
shares
Dec. 31, 2014
USD ($)
$ / shares
shares
Dec. 31, 2013
USD ($)
Equity, Class of Treasury Stock [Line Items]      
Stock Repurchase Program Authorized Amount1 $ 70,000    
Total number of shares purchased | shares 803,985 1,153,998  
Treasury Stock Acquired, Average Cost Per Share | $ / shares $ 11.1 $ 14.66  
Treasury Stock, Value, Acquired, Cost Method $ 8,950 $ 16,948 $ 0
Stock Repurchase Program Remaining Authorized Repurchase Amount1 $ 7,700    
Stock repurchase program remaining number of shares authorized to be repurchased | shares 1,056,128    
SharePrice | $ / shares $ 7.32    
Average Share Price 11.1 14.66  
Preferred Stock [Member]      
Equity, Class of Treasury Stock [Line Items]      
Preferred Stock Issue Costs $ 13,600 $ 13,600  
Common Stock [Member]      
Equity, Class of Treasury Stock [Line Items]      
Common Stock Issuance Cost $ 10,100 $ 10,100