The food delivery service is reporting record quarterly revenue despite Americans' waning sentiment on economy.

DoorDash said its agreement to buy Deliveroo, a British food delivery service, in a roughly $3.9 billion deal would give it a larger footprint in Europe and a presence in the Middle East, covering millions of users in more than 40 countries.

DoorDash is reporting record quarterly revenue even as more Americans feel increasingly uneasy about the U.S. economy