The House Judiciary Committee late Wednesday night formally approved a report on monopoly power in digital marketplaces.

The over 400-page document depicting ways that Alphabet, Amazon, Apple and Facebook allegedly abuse their market power was approved on a 24-17 party-line vote.

The report was released in October by Democrats on the committee but was the result of a bipartisan investigation, and some Republicans have signaled support for antitrust initiatives drawing on the report. Democrats on the committee are now expected to move forward with legislation.