Share-based Compensation (Summary of Stock Option Activity) (Details) - Equity Option [Member] - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding and Exercisable, Beginning of Period	7,500	18,750	22,500
Shares, Granted	0	0	0
Shares, Canceled	0	0	0
Shares, Exercised	(7,500)	(11,250)	(3,750)
Shares, Outstanding and Exercisable, End of Period	0	7,500	18,750
Weighted Average Exercise Price, Exercised	$ 9.08	$ 11.67	$ 9.30