CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income	$ 109,941	$ 103,828	$ 125,196
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	113,875	108,438	104,026
(Gain) loss on disposition of fixed assets	(4,447)	(46)	(2,407)
Unrealized (gain) loss in value of equity securities	(1,020)	275	1,325
Deferred income taxes	(5,344)	4,955	(852)
Unrealized (gain) loss in SERP	(2,987)	(2,834)	5,653
Changes in operating assets and liabilities:
Inventories	(12,637)	(2,883)	(23,687)
Accounts receivable and prepaid expenses	(23,347)	(18,564)	2,436
Accounts payable and other liabilities	11,364	13,095	7,695
Income taxes	2,208	(5,839)	(1,005)
Other	(139)	1,176	(356)
Net cash provided by operating activities	187,467	201,602	218,024
Cash flows from investing activities:
Purchase of property and equipment	(161,349)	(104,010)	(122,169)
Proceeds from the sale of property and equipment	6,507	867	6,691
Purchase of marketable securities	(163,638)	(112,979)	(355,757)
Proceeds from the sale and maturities of marketable securities	195,662	79,518	362,237
Acquisition of business	(16,225)
Purchase of intangible assets	(4,251)	(1,075)	(819)
Change in SERP investment	(1,485)	(1,120)	(1,290)
Net cash used in investing activities	(144,779)	(138,800)	(111,107)
Cash flows from financing activities:
Dividends paid	(36,582)	(36,582)	(34,968)
Net cash used in financing activities	(36,582)	(36,582)	(34,968)
Net increase (decrease) in cash and cash equivalents	6,106	26,220	71,949
Cash and cash equivalents at beginning of year	184,217	157,997	86,048
Cash and cash equivalents at end of period	$ 190,323	$ 184,217	$ 157,997