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Share-Based Compensation-Restricted Stock (Details) (Restricted Stock [Member], USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Restricted Stock [Member]
     
Number of Shares      
Outstanding at beginning of year 1,805,829    
Granted 1,078,000    
Expired/cancelled/forfeited (186,926)    
Lapse of restrictions (770,452)    
Outstanding at end of year 1,926,451 1,805,829  
Wgtd. Avg. Fair Value per Share      
Outstanding at beginning of year $ 6.28    
Granted $ 4.18 $ 5.24 $ 7.54
Expired/cancelled/forfeited $ 5.85    
Lapse of restrictions $ 6.95    
Outstanding at end of year $ 4.88 $ 6.28  
Total value of stock that vested $ 5.4 $ 4.7 $ 5.6
Additional Information      
Weighted average remaining life 2 years    
Value of restricted stock outstanding $ 8,300,000