Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023
Income Statement [Abstract]
Revenues	$ 481,654	$ 445,206	$ 886,463	$ 816,540
Costs and expenses:
Operating	300,306	274,421	581,085	523,490
Selling	81,511	76,275	151,487	144,498
General and administrative	37,370	32,449	75,861	63,886
Depreciation and amortization	17,371	14,550	33,779	28,544
Gain on sale of assets, net	(1,382)	(1,940)	(2,461)	(4,836)
Total costs and expenses	435,176	395,755	839,751	755,582
Income from operations	46,478	49,451	46,712	60,958
Other income (expense):
Interest expense	(5,222)	(4,966)	(9,289)	(8,837)
Interest income	998	428	1,524	827
Other, net	(2,169)	(824)	(3,533)	(1,475)
Income before income taxes	40,085	44,089	35,414	51,473
Income taxes	10,365	12,046	7,969	13,434
Net income	$ 29,720	$ 32,043	$ 27,445	$ 38,039
Net income per share:
Net income per share, basic	$ 0.72	$ 0.75	$ 0.65	$ 0.88
Net income per share, diluted	$ 0.68	$ 0.72	$ 0.63	$ 0.84
Weighted-average shares outstanding:
Weighted-average shares outstanding, basic	41,414	42,594	41,922	43,156
Weighted-average shares outstanding, diluted	43,388	44,762	43,846	45,263