Stock Incentive Plans (Details 3) (Stock option awards, USD $)
12 Months Ended
Dec. 31, 2014
Options Outstanding  
Number (in shares) 510,130
Weighted-Average Exercise Price (in dollars per share) $ 16.33
Weighted-Average Remaining Contractual Life 1 year 8 months 16 days
Intrinsic Value (in dollars) $ 106
Options Exercisable  
Number (in shares) 510,130
Intrinsic Value (in dollars) 106
Unrecognized stock option expense $ 0
$ 4.49-7.53  
Range of Exercise Prices  
Low end of the range (in dollars per share) $ 4.49
High end of the range (in dollars per share) $ 7.53
Options Outstanding  
Number (in shares) 105,000
Weighted-Average Exercise Price (in dollars per share) $ 6.01
Weighted-Average Remaining Contractual Life 5 years
Options Exercisable  
Number (in shares) 105,000
$ 17.12-19.74  
Range of Exercise Prices  
Low end of the range (in dollars per share) $ 17.12
High end of the range (in dollars per share) $ 19.55
Options Outstanding  
Number (in shares) 405,130
Weighted-Average Exercise Price (in dollars per share) $ 19.00
Weighted-Average Remaining Contractual Life 10 months 10 days
Options Exercisable  
Number (in shares) 405,130