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Stock-Based Compensation Plans (Aggregate Restricted Stock, Restricted Stock Units and Deferred Stock Units) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Stock-Based Compensation Plans Aggregate Restricted Stock Restricted Stock Units And Deferred Stock Units Details  
Nonvested at beginning of year 505,000
Granted 570,000
Released (318,000)
Forfeited (5,000)
Nonvested at December 31, 2013 752,000
Weighted-average grant date fair market value, beginning balance $ 6.96
Weighted-average grant date fair market value of restricted stock rights granted $ 9.18
Weighted-average grant date fair market value, released during period $ 6.37
Weighted-average grant date fair market value, forfeited during period $ 8.21
Weighted-average grant date fair market value, ending balance $ 8.89