Quarterly report pursuant to Section 13 or 15(d)

Loss per Share of Common Stock - Basic and Diluted Loss Per Share of Common Stock (Parenthetical) (Detail)

v3.4.0.3
Loss per Share of Common Stock - Basic and Diluted Loss Per Share of Common Stock (Parenthetical) (Detail) - shares
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Senior Common Stock [Member]    
Summary Of Computation Of Basic And Diluted Earnings Per Share [Line Items]    
Anti-dilutive convertible shares of senior common stock excluded from calculation of diluted earnings per share 800,116 723,631