Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.8.0.1
Consolidated Balance Sheets (Parenthetical) - $ / shares
Mar. 31, 2018
Dec. 31, 2017
Statement of Financial Position [Abstract]    
Preferred stock, par value (in usd per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 100,000,000 100,000,000
Preferred stock, shares outstanding 6,123,782 0
Common stock, par value (in usd per share) $ 0.01 $ 0.01
Common stock, shares authorized 400,000,000 400,000,000
Common stock, shares outstanding 228,421,102 222,749,220