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Equity Compensation (Schedule of Equity Compensation Restricted Stock Activity) (Details) - Restricted Stock - $ / shares
shares in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Equity Compensation [Abstract]    
Number of shares nonvested at beginning of period 445  
Number of shares granted 0 0
Number of shares vested 0  
Number of shares forfeited (41)  
Number of shares nonvested at end of period 404  
Weighted average grant date fair value nonvested at beginning of period $ 24.32  
Weighted average grant date fair value shares granted 0.00  
Weighted average grant date fair value shares vested 0.00  
Weighted average grant date fair value shares forfeited 20.88  
Weighted average grant date fair value nonvested at end of period $ 24.67