Quarterly report pursuant to Section 13 or 15(d)

Earnings (Loss) Per Share - Additional Information (Detail)

v2.4.0.8
Earnings (Loss) Per Share - Additional Information (Detail)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Earnings Per Share [Abstract]        
Options excluded from the computation of diluted earnings 0 0 0 0