Consolidated Balance Sheets Parentheticals - $ / shares	Jun. 30, 2016	Dec. 31, 2015
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	71,163,098	70,960,461
Common stock, shares outstanding	71,163,098	70,960,461