CONSOLIDATED STATEMENTS OF NET INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Revenues, net	$ 311,379	$ 333,637	$ 643,175	$ 733,998
Cost of revenues	125,353	138,966	263,715	328,336
Gross profit	186,026	194,671	379,460	405,662
Marketing expenses	57,154	41,894	174,088	159,828
Selling, general and administrative expenses	69,199	101,792	142,870	166,318
Goodwill impairment				3,665
Operating income	59,673	50,985	62,502	75,851
Interest expense	20,293	30,995	49,416	62,546
Other expense, net	381	416	143	438
Early extinguishment of debt	29,169		29,169
Income (loss) before income taxes	9,830	19,574	(16,226)	12,867
Provision for (benefit from) income taxes	970	5,592	(6,859)	4,942
Net income (loss)	8,860	13,982	(9,367)	7,925
Net loss attributable to the noncontrolling interest		24		18
Net income (loss) attributable to WW International, Inc.	$ 8,860	$ 14,006	$ (9,367)	$ 7,943
Earnings (loss) per share attributable to WW International, Inc.
Basic	$ 0.13	$ 0.21	$ (0.14)	$ 0.12
Diluted	$ 0.12	$ 0.20	$ (0.14)	$ 0.11
Weighted average common shares outstanding
Basic	69,588	67,641	69,336	67,538
Diluted	71,160	69,799	69,336	69,898
Subscription
Revenues, net	$ 272,871	$ 292,997	$ 552,691	$ 617,654
Cost of revenues	95,825	108,006	194,929	243,572
Product and Other
Revenues, net	38,508	40,640	90,484	116,344
Cost of revenues	$ 29,528	$ 30,960	$ 68,786	$ 84,764