Shareholders' Equity (Summary of the Company's Common and Preferred Stock) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Common stock, shares authorized	100,000,000	100,000,000	3,000,000
Common stock, shares issued	51,978,289	48,468,894
Preferred stock, shares authorized	20,000,000	20,000,000
Common stock
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	51,978,289	48,468,894
Common stock, shares outstanding	51,880,540	48,383,279
Common stock, cash dividend per share	$ 0.48	$ 0.44
Preferred stock
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	5,126,257	5,126,287
Preferred stock, shares outstanding	5,126,257	5,126,287