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Stock-Based Compensation (Textual) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Series A Preferred Stock [Member]
Sep. 30, 2013
Series A Preferred Stock [Member]
Sep. 18, 2012
Series A Preferred Stock [Member]
Mar. 31, 2010
2010 Plan [Member]
Sep. 30, 2013
Restricted stock units [Member]
Sep. 30, 2012
Restricted stock units [Member]
Sep. 30, 2013
Restricted stock units [Member]
Sep. 30, 2012
Restricted stock units [Member]
Sep. 30, 2013
Performance stock units [Member]
Sep. 30, 2012
Performance stock units [Member]
Sep. 30, 2013
Performance stock units [Member]
Sep. 30, 2012
Performance stock units [Member]
Sep. 30, 2013
Minimum [Member]
Performance stock units [Member]
Sep. 30, 2013
Maximum [Member]
Performance stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                    
Shares reserved for future issuance (shares)               1,100,000                    
Stock units granted (shares)                     843,698       523,048      
Conversion of convertible securities per share (shares)                             1   0 2
Share-based Compensation $ 626 $ 1,466 $ 3,361 $ 4,543 $ 300       $ 527 $ 566 $ 1,823 $ 1,288 $ (298) $ 0 $ 0 $ 0    
Estimated performance goal percentage (percent)                         100.00%   100.00%      
Common stock dividend paid in kind (shares)           1                        
Preferred stock par value of one thousandth of a share (dollars per share)             $ 0.0001                      
Preferred stock purchase price of one thousandth of a share (dollars per share)             $ 11.35                      
Shares subject to warrants (shares)         0.001 0.001                        
Tender offer portion of common stock (percent)             15.00%                      
Portion of common stock (percent)             15.00%