Annual report pursuant to Section 13 and 15(d)

Consolidated Statement of Stockholders' Equity (Deficit) (Parenthetical)

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Consolidated Statement of Stockholders' Equity (Deficit) (Parenthetical) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]      
Cash dividend per share of common stock (in dollars per share) $ 0.04961 $ 0.0451 $ 0.041