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Share-Based Compensation (Narrative) (Details) (USD $)
1 Months Ended 12 Months Ended 13 Months Ended
Jun. 30, 2011
Jan. 31, 2011
Jan. 31, 2010
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Maximum number of shares to be granted per year to a participant       500,000      
Weighted-average grant date fair value per share       $ 5.65 $ 4.68 $ 5.40  
Fair value of vested shares $ 2,000,000     $ 1,863,000 $ 2,126,000 $ 5,507,000  
Accelerated vestings         362,000 1,980,000  
Number or grants vested 706,000            
Vesting period   3 years 3 years        
Grant date market price           $ 6.54  
Shares previously designated as equity and liability awards             2,000,000
Performance-based grants           275,000  
Remaining performance-based awards after accelerated vestings   63,000          
2012 Plan [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares authorized under a Stock Incentive Plan       4,500,000      
Maximum number of shares to be granted per year to a participant       500,000      
Shares available for grant under a Stock Incentive Plan       1,800,000      
Aggregate cost of awards not yet recognized       11,400,000      
Unrecognized cost recognition period       4 years      
Accelerated vestings         $ 585,000 $ 3,569,000  
Chief Executive Officer [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares issued             500,000
Shares granted to Company's President 2,500,000            
Average annual TSR threshold 6.50%            
Vesting period 7 years            
Appraisal value $ 4.39            
Grant date market price $ 4.98            
Shares accounted for as equity award             1,500,000
Shares accounted for as liability award             500,000
Time-Based Awards [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number or grants vested 284,000            
Performance-Based Awards [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number or grants vested 422,000            
Restricted Stock [Member] | 2012 Plan [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares issued       584,000 698,000 436,000  
Weighted-average grant date fair value per share       $ 5.65 $ 4.75 $ 5.97