CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Preferred Stock [Member]
Conversion of Stock, Shares Converted	25,802	0
Treasury Stock - Common [Member]
Purchase of shares for company benefit plans, shares	10,100	12,401
Release of shares from company benefit plans, shares	63,318	41,046
Convertible Note Exchange [Member]
Stock Issued During Period, Shares, Conversion of Convertible Securities	14,699,000	0
Senior Note Exhange [Member]
Stock Issued During Period, Shares, Conversion of Convertible Securities	2,556,000	0
Preferred Stock Exchange [Member]
Stock Issued During Period, Shares, Conversion of Convertible Securities	1,022,000	0