XML 19 R28.htm IDEA: XBRL DOCUMENT v2.4.0.8
Net Loss Per Share - Additional Information (Detail)
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Outstanding warrants and equity awards were not included in diluted net loss per share calculation 77,800,000 30,800,000