The Global Payments Company logo seen displayed on a smartphone.Igor Golovniov | LightRocket | Getty ImagesGlobal Payments shares tumbled 17% on Thursday after the company said it is buying Worldpay for more than $24 billion while simultaneously selling its Issuer Solutions business to Fidelity National Information Services, or FIS.The company said that in acquiring Worldpay, which FIS had purchased in 2019 before later selling a majority stake, it is expanding its reach and will be able to serv...