Noncontrolling Interests - Summary of Ownership Interests in EWC Ventures LLC on Equity (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 04, 2026	Apr. 05, 2025
Minority Interest [Line Items]
Net income attributable to European Wax Center Inc.	$ 960	$ 1,735
Increase (decrease) in additional-paid-in-capital as a result of equity allocations from the noncontrolling interest	60	(907)
Net increase in equity of European Wax Center, Inc. due to equity interest transactions with noncontrolling interests	$ 1,020	$ 828

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

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