XML 51 R41.htm IDEA: XBRL DOCUMENT v3.21.2
Earnings Per Share - Narrative (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share [Abstract]        
Total anti-dilutive shares (in shares) 2,610 34,379 2,400 20,202