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Shareholders' Equity and Other Comprehensive Income (Loss) (Narrative) (Details) - Common Stock
$ / shares in Units, shares in Thousands, $ in Millions
6 Months Ended
Jun. 30, 2020
USD ($)
$ / shares
shares
Class of Stock [Line Items]  
Share repurchased | $ $ 16.2
Shares repurchased (in shares) | shares 450
Share repurchased (in dollars per share) | $ / shares $ 36.08