Quarterly report pursuant to Section 13 or 15(d)

Computations of Basic and Diluted Earnings Per Share (Parenthetical) (Detail)

v3.20.1
Computations of Basic and Diluted Earnings Per Share (Parenthetical) (Detail) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Earnings Per Share Disclosure [Line Items]    
Weighted average shares of participating restricted stock 683,000 659,000
Restricted Stock Units (RSUs)    
Earnings Per Share Disclosure [Line Items]    
Common equivalent shares for restricted stock units 92,000 239,000 [1]
[1] For the three months ended March 31, 2020, approximately 92 common equivalent shares for restricted stock units were excluded because they were anti-dilutive.