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

v2.4.0.8

Earnings (Loss) Per Share of Common Stock - Basic and Diluted Earnings (Loss) Per Share of Common Stock (Parenthetical) (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013
Earnings Per Share [Abstract]
Additional convertible senior common stock	257,429	93,871	217,010