Prospectus excerpt:  We are offering 2,000,000 shares of our 6.00% Series A Mandatory Convertible Preferred Stock, no par value per share (the “Mandatory Convertible Preferred Stock”). Dividends on the Mandatory Convertible Preferred Stock will be payable on a cumulative basis when, as and if declared by our board of directors, or an authorized committee of our board of directors, at an annual rate of 6.00% of the liquidation preference of $200.00 per share. We may pay declared dividends in cash or, subject to certain limitations, in shares of our common stock, no par value per share (the “common stock”), or in any combination of cash and shares of our common stock on January 1, April 1, July 1 and October 1 of each year, commencing on October 1, 2020 and ending on, and including, July 1, 2023. Each share of the Mandatory Convertible Preferred Stock has a liquidation preference of $200.00.