Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Additional Information (Detail)

v3.4.0.3
Earnings Per Share - Additional Information (Detail) - shares
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Restricted Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Securities not included in the effect of dilutive securities 130,573 171,220