CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015	[1]
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	51,480,284	31,726,767
Common stock, shares outstanding (in shares)	51,480,284	31,726,767

[1] Derived from the audited consolidated financial statements included in the Company's 2015 Annual Report on Form 10-K.