Quarterly report pursuant to Section 13 or 15(d)

Income Per Share - Additional Information (Detail)

v3.10.0.1
Income Per Share - Additional Information (Detail) - shares
shares in Thousands
3 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share [Abstract]    
Antidilutive securities excluded from computation of earnings per share 2 11