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Capital Structure and Per Share Data | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Capital Structure and Per Share Data | Capital Structure and Per Share Data Preferred Stock - We have 3,000,000 shares of “blank check” preferred stock authorized with such designations, rights and preferences as may be determined from time to time by our Board of Directors. Our Board of Directors has designated 300,000 shares of preferred stock as Class A Convertible Preferred Stock, par value $0.10 per share (the “Preferred Stock”), which is divided into 100,000 shares of Series I Preferred Stock, 100,000 shares of Series II Preferred Stock and 100,000 shares of Series III Preferred Stock. There were no shares of Preferred Stock issued or outstanding at December 31, 2020 or 2019. Common Stock - We have two classes of common stock. We have authorized 100,000,000 shares of Class A Common Stock at a par value of $0.01 per share. Class A Common Stock entitles its holder to one vote per share. We have also authorized 30,000,000 shares of Class B Common Stock at a par value of $0.01 per share. Class B Common Stock entitles its holder to 10 votes per share, except in certain circumstances. Each share of Class B Common Stock is convertible into one share of Class A Common Stock either upon voluntary conversion at the option of the holder, or automatically upon the occurrence of certain events, as provided in our charter. The two classes of common stock share equally in dividends and in the event of liquidation. Share Repurchases - Prior to December 31, 2019, our Board of Directors had authorized us to expend up to $695.0 million to repurchase shares of our Class A Common Stock. In 2020, our Board of Directors approved an additional $60.0 million of share repurchase authorization. As of December 31, 2020, we had repurchased a total of approximately 35.8 million shares of Class A Common Stock at an average price per share of approximately $18.76 and had redeemed and retired 13,801.5 shares of the Preferred Stock at an average price of $1,000 per share. As of December 31, 2020, we had approximately $69.5 million remaining under our Board’s share repurchase authorization. Per Share Data - The calculation of diluted earnings per share considers the potential dilutive effect of restricted stock units, restricted stock awards and stock options granted under Sonic’s stock compensation plans (and any non-forfeitable dividends paid on such awards), in addition to Class A Common Stock purchase warrants.

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