BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Jun. 20, 2023 USD ($) $ / shares shares	Dec. 28, 2025 USD ($) shares	Dec. 29, 2024 USD ($) shares	Dec. 31, 2023 USD ($) shares	Dec. 25, 2022 shares
Basis Of Presentation And Significant Accounting Policies [Line Items]
Underwriting discounts and commissions				$ 22,800
Offering expenses		$ 0	$ 0	5,384
Proceeds from IPO		$ 0	$ 0	$ 342,604
Conversion of preferred stock (in shares) \| shares	95,200,000			95,204,000
Par value (in usd per share) \| $ / shares	$ 0.0001
Conversion ratio	1
Redeemable preferred stock, shares outstanding (in shares) \| shares		0	0	0	95,204,000
Allowance for doubtful accounts		$ 100	$ 100
Operating lease, term (in years)		10 years
Operating lease, option to extend term (in years)		5 years
Goodwill		$ 1,944	1,944
Intangible assets, net		$ 1,779	1,355
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]		Intangible assets, net		Intangible assets, net
Impairment, long-lived asset		$ 1,300		$ 1,300
Expiration period for inactive account		180 days
Expiration period for converted points		60 days
Marketing and advertising expense		$ 14,400	8,800	6,100
License
Basis Of Presentation And Significant Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life		2 years
Trademarks
Basis Of Presentation And Significant Accounting Policies [Line Items]
Intangible assets, net		$ 800
Other Intangible Assets
Basis Of Presentation And Significant Accounting Policies [Line Items]
Intangible assets, net		600
Construction and Technology Activities
Basis Of Presentation And Significant Accounting Policies [Line Items]
Property, plant and equipment, additions		$ 9,000	$ 6,000	$ 5,600
Series A Preferred Stock
Basis Of Presentation And Significant Accounting Policies [Line Items]
Par value (in usd per share) \| $ / shares	$ 0.0001
Series B Preferred Stock
Basis Of Presentation And Significant Accounting Policies [Line Items]
Par value (in usd per share) \| $ / shares	0.0001
Series C Preferred Stock
Basis Of Presentation And Significant Accounting Policies [Line Items]
Par value (in usd per share) \| $ / shares	0.0001
Series D Preferred Stock
Basis Of Presentation And Significant Accounting Policies [Line Items]
Par value (in usd per share) \| $ / shares	0.0001
Series E Preferred Stock
Basis Of Presentation And Significant Accounting Policies [Line Items]
Par value (in usd per share) \| $ / shares	0.0001
Series F Preferred Stock
Basis Of Presentation And Significant Accounting Policies [Line Items]
Par value (in usd per share) \| $ / shares	$ 0.0001
IPO
Basis Of Presentation And Significant Accounting Policies [Line Items]
Number of shares issued in IPO (in shares) \| shares	16,600,000
Sale of stock (in usd per share) \| $ / shares	$ 22.00
Underwriting discounts and commissions	$ 22,800
Offering expenses	6,500
Proceeds from IPO	$ 336,100
Over-Allotment Option
Basis Of Presentation And Significant Accounting Policies [Line Items]
Number of shares issued in IPO (in shares) \| shares	2,200,000

CAVA GROUP, INC. 10-K