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Earnings Per Share - Reconciliation of the Weighted Average Number of Common Shares Outstanding (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]        
Beginning Balance, Shares 12,618 12,462 12,618 12,462
Weighted average common shares issued 24 18 10 6
Weighted average number of common shares outstanding 12,642 12,480 12,628 12,468
Diluted weighted average number of common shares outstanding 12,642 12,480 12,628 12,468