Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	9 Months Ended	12 Months Ended
Sep. 30, 2020	Dec. 31, 2019
Shareholders' equity
Common stock, par value
Common stock, shares issued	58,878,749	61,362,872
Common stock, shares outstanding	58,861,171	61,175,852
Number of treasury shares held in trust for future settlement of share based awards	17,578	187,020

Face amount per share of no-par value common stock.

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