XML 22 R33.htm IDEA: XBRL DOCUMENT v3.19.3
Basis of Financial Statements - Earnings Per Share (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Antidilutive shares excluded from calculation of diluted earnings per share (in shares) 0 0 0 100,000