CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023	Dec. 25, 2022
Cash flows from operating activities:
Net income (loss)	$ 130,319	$ 13,280	$ (58,987)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	60,355	47,406	37,086
Amortization of intangible assets	0	27	5,638
Equity-based compensation	13,603	9,360	3,803
Deferred income taxes	(71,616)	50	5
Impairment and asset disposal costs	5,055	4,899	19,753
Changes in operating assets and liabilities:
Trade accounts receivable	(1,137)	(835)	(50)
Other accounts receivable	26	(3,315)	(1,626)
Inventories	(1,963)	(498)	(1,496)
Prepaid expenses and other	(3,362)	60	(318)
Operating lease assets	(32,494)	(20,521)	(34,187)
Accounts payable	8,903	2,549	336
Accrued expenses and other	10,791	19,123	(2,906)
Operating lease liabilities	42,547	25,516	38,987
Net cash provided by operating activities	161,027	97,101	6,038
Cash flows from investing activities:
Purchases of property and equipment	(108,131)	(138,806)	(104,161)
Net cash used in investing activities	(108,131)	(138,806)	(104,161)
Cash flows from financing activities:
Proceeds from long-term debt	0	6,000	0
Payments on long-term debt	0	(6,000)	0
Tax withholding on equity-based compensation awards	(24,650)	(3,108)	(911)
Shares purchased under equity plans	5,491	1,353	37
Proceeds from initial public offering, net of underwriting fees of $22.8 million	0	342,604	0
Offering costs paid	0	(5,384)	(1,109)
Payment of loan acquisition fees	0	(372)	(986)
Payments on finance lease obligations	(45)	(85)	(115)
Net cash (used in) provided by financing activities	(19,204)	335,008	(3,084)
Net change in cash and cash equivalents	33,692	293,303	(101,207)
Cash and cash equivalents - beginning of year	332,428	39,125	140,332
Cash and cash equivalents - end of year	366,120	332,428	39,125
Supplemental Disclosure of Cash Flow Information:
Offering costs not yet paid	0	0	542
Cash paid for fees and interest related to long-term debt	211	330	161
Cash paid for income taxes	2,533	116	523
Change in accrued purchases of property and equipment	(986)	584	5,083
Conversion of redeemable preferred stock into common stock in connection with initial public offering	$ 0	$ 662,309	$ 0