Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Earnings Per Share - Additional Information (Detail)

v2.4.0.8
Stockholders' Equity and Earnings Per Share - Additional Information (Detail)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Stockholders' Equity and Earnings Per Share (Textual) [Abstract]      
Common stock, shares authorized 100,000,000 100,000,000  
Option to purchase shares, anti-dilutive 3,508,865 1,018,900 1,169,064