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)

v3.3.0.814
Loss per Share of Common Stock - Basic and Diluted Loss Per Share of Common Stock (Parenthetical) (Detail) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
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 828,444 429,673 791,582 362,162