CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Common stock and paid in capital, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock and paid in capital, authorized (in shares)	370,100,000	370,100,000
Common stock and paid in capital, issued (in shares)	303,742,090	284,213,685
Common stock and paid in capital, outstanding (in shares)	303,742,090	284,213,685