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Common and Common Equivalent Shares - Schedule of Calculation of Shares Used in Basic and Diluted Net Income Per Share (Detail) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Earnings Per Share [Abstract]        
Weighted average number of common shares outstanding 85,078,000 84,912,000 85,190,000 84,660,000
Weighted average number of dilutive common share equivalents 541,000 1,021,000 724,000 993,000
Weighted average number of common and common equivalent shares outstanding 85,619,000 85,933,000 85,914,000 85,653,000
Antidilutive securities not included in the diluted net income per common share calculation 569,000 13,000 409,000 15,000