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Stock Compensation Plans (Performance Award Transactions) (Details) (Performance Shares [Member])
3 Months Ended
Mar. 31, 2014
Performance Shares [Member]
 
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]  
Shares awarded but not earned, beginning of period 2,808,519
Shares awarded 864,600
Shares forfeited or unearned (67,296)
Shares earned 0
Shares awarded but not earned, end of period 3,605,823