Noncontrolling Interests - Summary of Ownership Interests in EWC Ventures LLC on Equity (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 05, 2025	Jul. 06, 2024	Jul. 05, 2025	Jul. 06, 2024
Minority Interest [Line Items]
Net income attributable to European Wax Center Inc.	$ 3,752	$ 4,249	$ 5,487	$ 7,014
(Decrease) increase in additional-paid-in-capital as a result of equity allocations from the noncontrolling interest	(656)	1,149	(1,563)	1,170
Net increase in equity of European Wax Center, Inc. due to equity interest transactions with noncontrolling interests	$ 3,096	$ 5,398	$ 3,924	$ 8,184

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details