XML 72 R60.htm IDEA: XBRL DOCUMENT v3.21.2
Net Income Per Common Share (Narrative) (Details) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of earnings per share (in shares) 32 758 21 602