Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Revenue	$ 1,851,813	$ 1,329,108	$ 1,057,495
Less excise taxes	115,381	79,284	61,846
Net revenue	1,736,432	1,249,824	995,649
Cost of goods sold	921,980	635,658	483,406
Gross profit	814,452	614,166	512,243
Operating expenses:
Advertising, promotional and selling expenses	447,568	355,613	304,853
General and administrative expenses	118,211	112,730	90,857
Impairment of assets	4,466	911	652
Total operating expenses	570,245	469,254	396,362
Operating income	244,207	144,912	115,881
Other income (expense), net:
Interest (expense) income, net	(199)	647	1,292
Other income (expense), net	222	(1,189)	(887)
Total other income (expense), net	23	(542)	405
Income before provision for income tax	244,230	144,370	116,286
Provision for income taxes	52,270	34,329	23,623
Net income	$ 191,960	$ 110,041	$ 92,663
Net income per common share - basic	$ 15.73	$ 9.26	$ 7.90
Net income per common share - diluted	$ 15.53	$ 9.16	$ 7.82
Weighted-average number of common shares - basic	12,204	11,886	11,733
Weighted-average number of common shares - diluted	12,283	11,908	11,734
Net income	$ 191,960	$ 110,041	$ 92,663
Other comprehensive income (loss) , net of tax:
Currency translation adjustment	25	47	25
Defined benefit plans liability adjustment	1,392	(519)	277
Impact of ASU 2018-02	191,960	110,041	92,663
Total other comprehensive income (loss), net of tax:	1,417	(472)	91
Comprehensive income	$ 193,377	$ 109,569	$ 92,754
Common Class A
Other income (expense), net:
Net income per common share - basic	$ 15.73	$ 9.26	$ 7.90
Weighted-average number of common shares - basic	9,734	8,908	8,620
Common Class B
Other income (expense), net:
Net income per common share - basic	$ 15.73	$ 9.26	$ 7.90
Weighted-average number of common shares - basic	2,396	2,873	3,002
Revision of Prior Period, Change in Accounting Principle, Adjustment | ASU 2018-02
Other comprehensive income (loss) , net of tax:
Impact of ASU 2018-02			$ (211)