Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
Income Statement [Abstract]
Net sales	$ 921,010	$ 998,601	$ 1,186,464
Cost of sales	176,693	193,890	217,898
Gross profit	744,317	804,711	968,566
Operating expenses:
Associate incentives	394,257	434,793	519,267
Selling, general and administrative	256,989	262,304	279,107
Total operating expenses	651,246	697,097	798,374
Earnings from operations	93,071	107,614	170,192
Other income (expense):
Interest income	9,637	3,789	2,515
Interest expense	(262)	(192)	(57)
Other, net	7	(2,590)	(2,008)
Other income (expense), net	9,382	1,007	450
Earnings before income taxes	102,453	108,621	170,642
Income taxes	38,665	39,271	54,137
Net earnings	$ 63,788	$ 69,350	$ 116,505
Earnings per common share
Earnings per share, basic (in dollars per share)	$ 3.31	$ 3.60	$ 5.78
Earnings per share, diluted (in dollars per share)	$ 3.30	$ 3.59	$ 5.73
Weighted average common shares outstanding
Basic (in shares)	19,250	19,254	20,146
Diluted (in shares)	19,345	19,310	20,343
Comprehensive income:
Net earnings	$ 63,788	$ 69,350	$ 116,505
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(1,298)	(15,126)	2,203
Tax benefit (expense) related to foreign currency translation adjustment	390	1,881	1,880
Other comprehensive income (loss), net of tax	(908)	(13,245)	4,083
Comprehensive income	$ 62,880	$ 56,105	$ 120,588