Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Revenue	$ 1,329,108	$ 1,057,495	$ 921,736
Less excise taxes	79,284	61,846	58,744
Net revenue	1,249,824	995,649	862,992
Cost of goods sold	635,658	483,406	413,091
Gross profit	614,166	512,243	449,901
Operating expenses:
Advertising, promotional and selling expenses	355,613	304,853	258,649
General and administrative expenses	112,730	90,857	73,126
Impairment of assets	911	652	2,451
Total operating expenses	469,254	396,362	334,226
Operating income	144,912	115,881	115,675
Other (expense) income, net:
Interest income	647	1,292	549
Other expense, net	(1,189)	(887)	(82)
Total other (expense) income, net	(542)	405	467
Income before provision for income tax	144,370	116,286	116,142
Provision for income taxes	34,329	23,623	17,093
Net income	$ 110,041	$ 92,663	$ 99,049
Net income per common share — basic	$ 9.26	$ 7.90	$ 8.18
Net income per common share — diluted	$ 9.16	$ 7.82	$ 8.09
Weighted-average number of common shares — basic	11,886	11,733	12,102
Weighted-average number of common shares — diluted	11,908	11,734	12,180
Net income	$ 110,041	$ 92,663	$ 99,049
Other comprehensive (loss) income, net of tax:
Currency translation adjustment	47	25	17
Defined benefit plans liability adjustment	(519)	277	(202)
Impact of ASU 2018-02		(211)
Total other comprehensive (loss) income, net of tax:	(472)	91	(185)
Comprehensive income	$ 109,569	$ 92,754	$ 98,864
Common Class A
Other (expense) income, net:
Net income per common share — basic	$ 9.26	$ 7.90	$ 8.18
Weighted-average number of common shares — basic	8,908	8,620	8,933
Common Class B
Other (expense) income, net:
Net income per common share — basic	$ 9.26	$ 7.90	$ 8.18
Net income per common share — diluted	$ 9.16	$ 7.82	$ 8.09
Weighted-average number of common shares — basic	2,873	3,002	3,102