XML 50 R37.htm IDEA: XBRL DOCUMENT v3.25.2

REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2025	Jun. 30, 2024	Jun. 29, 2025	Jun. 30, 2024	Dec. 29, 2024
Revenue Recognition, Milestone Method [Line Items]
Gift card breakage			$ 502	$ 502
Gift Card
Revenue Recognition, Milestone Method [Line Items]
Gift card breakage, percent of sales	11.00%		11.00%
Gift card breakage	$ 200	$ 500	$ 200	$ 500
Gift card liability	4,450		4,450		$ 6,875
Portillo’s Perks
Revenue Recognition, Milestone Method [Line Items]
Gift card liability	$ 100		$ 100
Minimum | Portillo’s Perks
Revenue Recognition, Milestone Method [Line Items]
Expiration period			14 days
Maximum | Portillo’s Perks
Revenue Recognition, Milestone Method [Line Items]
Expiration period			30 days

X

- Definition

Gift Card Breakage

+ References

No definition available.

+ Details

Name:	ptlo_GiftCardBreakage
Namespace Prefix:	ptlo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Gift Card Breakage, Percent Of Sales

+ References

No definition available.

+ Details

Name:	ptlo_GiftCardBreakagePercentOfSales
Namespace Prefix:	ptlo_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Gift Card, Expiration Period

+ References

No definition available.

+ Details

Name:	ptlo_GiftCardExpirationPeriod
Namespace Prefix:	ptlo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479837/606-10-45-2

+ Details

Name:	us-gaap_ContractWithCustomerLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_RevenueRecognitionMilestoneMethodLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_ProductOrServiceAxis=ptlo_GiftCardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ptlo_PortillosPerksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: