Quarterly report pursuant to Section 13 or 15(d)

Net Loss Per Share - Additional Information (Details)

v3.3.0.814
Net Loss Per Share - Additional Information (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Earnings Per Share [Abstract]        
Shares excluded from dilutive shares outstanding because their effect was anti-dilutive 547,411 753,583 912,944 1,549,922