"He recognized it and took care of it," a source told E! News. "He's doing well and back to work."
Friends and family urged him to get treatment, he told the website.
The "Capote" Oscar-winner is said to have stayed at the detox facility for 10 days before checking out last Friday.
Hoffman, 45, has struggled with
The actor, who has three children with costume designer Mimi O'Donnell, is already back at work, filming a movie in Europe, according to ET.
Hoffman will next appear in "The Hunger Games" sequel
A rep for Hoffman declined to comment on the report.
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