Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Shareholders' Equity (Parenthetical)

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Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Payment of dividends (in dollars per share) $ 0 $ 0.25 $ 0.13
Issuance of common stock from the treasury (in shares) 162,869 66,632 58,532
Stock options exercised, net (in shares) 3,628 31,488 5,389
Shares issued in connection at-the-market offering (in shares) 0 44,378