Netflix said Monday that Chief Financial Officer David Wells plans to step down after helping the company choose his successor. Wells has served as Netflix’s CFO since 2010, during a transformative time for the streaming service that has emerged as an entertainment powerhouse. Wells says he intends to stay until his successor takes the role to ensure a smooth transition, then will focus on philanthropy.

Netflix CEO Reed Hastings is writing a book pulling back the curtain on his leadership strategy and the company’s culture. Co-authored by business writer Erin Miller, it will be published by Penguin next year.

With Comcast out of the picture, Disney will now likely acquire most of Fox and double its size with enough content and assets to square off against Netflix. Disney will also get access to a range of new cable channels in the deal to help populate its own streaming service.