Noncontrolling Interests - Summary of Ownership Interests in EWC Ventures LLC on Equity (Details) - USD ($) $ in Thousands	5 Months Ended	12 Months Ended
	Dec. 25, 2021	Jan. 06, 2024	Dec. 31, 2022
Noncontrolling Interest [Line Items]
Net income (loss) attributable to European Wax Center, Inc.	$ (3,415)	$ 8,931	$ 7,277
Increase in additional-paid-in-capital as a result in ownership changes in EWC Ventures	34,208	18,149	21,412
Net increase in equity of European Wax Center, Inc. due to equity interest transactions with noncontrolling interests	$ 30,793	$ 27,080	$ 28,689