Shareholders' Equity (Class of Stock Disclosure) (Details)	12 Months Ended
	Dec. 31, 2016 shares
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock Held, beginning balance	2,090,409
Common Stock Outstanding, beginning balance	91,561,192
Restricted share activity	248,603
Stock options exercised	292,304
Common stock repurchased	350,000
Treasury Stock Held, ending balance	1,899,502
Common Stock Outstanding, ending balance	91,752,099
Series E Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares, beginning balance	5,060
Shares, ending balance	5,060
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares, beginning balance	93,651,601
Shares, ending balance	93,651,601
Treasury Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury Stock Held, beginning balance	2,090,409
Restricted share activity	248,603
Stock options exercised	292,304
Common stock repurchased	350,000
Treasury Stock Held, ending balance	1,899,502