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Equity-Based Compensation Plans (Details) (Stock Options [Member], USD $)
In Thousands, except Share data, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Stock Options [Member]
 
Weighted Average Exercise Price  
Balance, beginning $ 17.75
Expired $ 21.22
Outstanding $ 16.11
Exercisable $ 18.46
Number of shares:  
Balance options outstanding, beginning 408,408
Expired (130,729)
Balance options outstanding, end 277,679
Exercisable, end of period 202,679
Weighted- Average Contractual Term (years), outstanding 4 years 2 months 12 days
Weighted- Average Contractual Term (years), exercisable 2 years 10 months 24 days
Aggregate Intrinsic Value, outstanding $ 530,400
Aggregate Intrinsic Value, exercisable $ 49,275