XML 53 R57.htm IDEA: XBRL DOCUMENT v3.19.3
Weighted Average Common Shares - Summary of Weighted Average Numbers of Common Shares Used to Compute Basic and Diluted Net Income Per Share (Detail) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Earnings Per Share [Abstract]        
Basic common shares outstanding 70,142 69,737 70,029 69,542
Common stock equivalents 2,000 2,053 1,872 1,883
Diluted common shares outstanding 72,142 71,790 71,901 71,425