| Component: (Network and Table) | |
|---|---|
| Network | 100550 - Disclosure - Other Noncurrent Liabilities - Schedule of Other Noncurrent Liabilities (Detail) (http://www.elpolloloco.com/20161228/taxonomy/role/DisclosureOtherNoncurrentLiabilitiesScheduleOfOtherNoncurrentLiabilitiesDetail) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0001606366 (http://www.sec.gov/CIK) |
| Other Liabilities Noncurrent [Abstract] | Period [Axis] | |
|---|---|---|
2016-12-28 | 2015-12-30 | |
Other Liabilities Noncurrent [Abstract] | ||
Deferred rent | ||
Income tax receivable agreement payable | ||
Other | ||
Total noncurrent liabilities | 36,988,000 | 43,367,000 |