---
title: "Detention"
description: "Detention, also known as per diem, is a fee charged for the extra days a container is away from port."
language: en
canonical: https://www.flex.thisisbrew.com/glossary/detention/
lifecycle: live
dateModified: 2026-08-20T06:44:07Z
topics:
  - "Port Congestion"
  - "Ocean Freight"
---

# Detention

Detention, also known as per diem, is a fee charged for the extra days a container is away from port.

Detention, also known as per diem, is a fee charged for the extra days a container is kept outside the port or terminal beyond the allotted free time. For a full explanation, see the Per Diem Charge entry.

Back to the [full glossary](https://www.flex.thisisbrew.com/glossary/).

---

*This is a markdown version of [https://www.flex.thisisbrew.com/glossary/detention/](https://www.flex.thisisbrew.com/glossary/detention/) for AI/LLM consumption.*