Net Income (Loss) Per Unit - Schedule of Income Per Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 26, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss)	$ 7,729	$ (11,372)	$ 8,831	$ (10,413)
EWC Ventures, LLC and Subsidiaries [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss)	7,729	(11,372)	8,831	(10,413)
Less: net income allocated to participating securities	(665)	0	(696)	0
Net income (loss) applicable to common unitholders	6,383	(11,726)	6,826	(10,767)
EWC Ventures, LLC and Subsidiaries [Member] | Class D Units [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Less: preferred return on Class D Units	(681)	(354)	(1,309)	(354)
EWC Ventures, LLC and Subsidiaries [Member] | Class A Founders' Units [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss) applicable to common unitholders	$ 1,532	$ (2,807)	$ 1,638	$ (2,577)
Basic and diluted weighted average units outstanding
Weighted Average Number of Shares Outstanding, Basic and Diluted	8,309,193	8,309,193	8,309,193	8,309,193
Basic and diluted net income (loss) per unit
Earnings Per Share, Basic and Diluted	$ 0.18	$ (0.34)	$ 0.20	$ (0.31)
EWC Ventures, LLC and Subsidiaries [Member] | Class A Units [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss) applicable to common unitholders	$ 4,851	$ (8,919)	$ 5,188	$ (8,190)
Basic and diluted weighted average units outstanding
Weighted Average Number of Shares Outstanding, Basic and Diluted	26,311,170	26,401,089	26,317,099	26,401,089
Basic and diluted net income (loss) per unit
Earnings Per Share, Basic and Diluted	$ 0.18	$ (0.34)	$ 0.20	$ (0.31)