CONSOLIDATED STATEMENTS OF NET INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Revenues, net	$ 365,765	$ 323,687	$ 1,183,735	$ 994,422
Cost of revenues	150,371	146,599	502,546	464,227
Gross profit	215,394	177,088	681,189	530,195
Marketing expenses	35,515	30,310	189,855	158,707
Selling, general and administrative expenses	61,019	55,400	182,696	153,671
Operating income	118,860	91,378	308,638	217,817
Interest expense	35,506	26,993	107,238	82,227
Other expense, net	881	125	1,978	278
Gain on early extinguishment of debt	0	0	0	(1,554)
Income before income taxes	82,473	64,260	199,422	136,866
Provision for income taxes	12,374	19,593	19,580	36,457
Net income	70,099	44,667	179,842	100,409
Net loss attributable to the noncontrolling interest	33	52	122	135
Net income attributable to Weight Watchers International, Inc.	$ 70,132	$ 44,719	$ 179,964	$ 100,544
Earnings Per Share attributable to Weight Watchers International, Inc.
Basic	$ 1.05	$ 0.69	$ 2.72	$ 1.57
Diluted	$ 1.00	$ 0.65	$ 2.57	$ 1.48
Weighted average common shares outstanding
Basic	66,701	64,463	66,074	64,237
Diluted	70,331	68,686	70,117	67,939
Service
Revenues, net	$ 311,963	$ 273,219	$ 984,362	$ 817,696
Cost of revenues	122,357	118,073	390,296	363,284
Product and Other
Revenues, net	53,802	50,468	199,373	176,726
Cost of revenues	$ 28,014	$ 28,526	$ 112,250	$ 100,943