Priced upsized public offering of 2.625% senior unsecured convertible notes due 2023. Underwriters received 30-day option to purchase $25 million additional notes. The net proceeds from the offering-- possibly alongside additional revolving credit facility borrowings--will fund separate tender offers for the existing 7.25% notes due 2019; 6.5% notes due 2021; 6.875% notes due 2022 and 6.875% notes due 2023. If tender offers are not completed, part of the net proceeds might support general corporate purposes, which could include redemption or repurchases of the senior notes. The notes will be convertible into cash, common shares or a blend of cash and shares. They will mature on Sept. 15, 2023. RBC Capital Markets is the sole structuring adviser and lead book-running manager. Citigroup is also lead joint book-running manager. Deutsche Bank Securities, Goldman Sachs & Co., J.P. Morgan and Wells Fargo Securities are joint book-running managers.