Long-Term Debt (Details) $ in Thousands		1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 28, 2023	Jun. 30, 2021 USD ($)	Sep. 30, 2023 USD ($)	Sep. 24, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 24, 2022 USD ($)	Dec. 25, 2021 USD ($)	Dec. 31, 2022 USD ($)
Long-term debt
Principal			$ 488,410		$ 488,410			$ 487,817
Amortization of debt issuance costs					949	$ 949
Interest expense, net
Long-term debt
Amortization of debt issuance costs			300	$ 300	900	$ 900
Initial First Lien Term Loan Facility
Long-term debt
Prepayment of debt							$ 99,200
Loss on the extinguishment							$ (1,400)
Principal			480,800		480,800
Payment of debt issuance costs		$ 6,800
Threshold limit of Percentage of minimum interest rate		0.75%
Revolving Facility
Long-term debt
Payment of debt issuance costs		$ 1,100
Amortization of debt issuance costs		$ 200
Available credit			125,000		125,000			125,000
Outstanding debt			0		0
First Lien Revolving Line of Credit
Long-term debt
Threshold limit of Percentage of minimum interest rate		0.00%
Outstanding debt			$ 0		$ 0			$ 0
First Lien Credit Agreement
Long-term debt
Threshold limit, maximum leverage ratio of consolidated first lien net debt to consolidated EBITDA					6.95
Financial covenant testing threshold percentage of aggregate revolving credit commitments					35.00%
First Lien Credit Agreement | Initial First Lien Term Loan Facility
Long-term debt
Loan amount		$ 580,000
First Lien Credit Agreement | Revolving Facility
Long-term debt
Available credit		125,000
First Lien Credit Agreement | Letter of credit facility
Long-term debt
Available credit		$ 45,000
Initial First Lien Term Loan Facility and Revolving Facility
Long-term debt
Percentage of reduction in interest upon consummation of an IPO		0.50%
Effective interest rate (as a percent)			9.13%		9.13%			7.91%
Initial First Lien Term Loan Facility and Revolving Facility | LIBOR | Minimum
Long-term debt
Interest rate (as a percent)		4.00%
Initial First Lien Term Loan Facility and Revolving Facility | LIBOR | Maximum
Long-term debt
Interest rate (as a percent)		4.25%
Initial First Lien Term Loan Facility and Revolving Facility | One Month SOFR
Long-term debt
Interest rate (as a percent)	0.11448%
Initial First Lien Term Loan Facility and Revolving Facility | Three Month SOFR
Long-term debt
Interest rate (as a percent)	0.26161%
Initial First Lien Term Loan Facility and Revolving Facility | Six Month SOFR
Long-term debt
Interest rate (as a percent)	0.42826%
Initial First Lien Term Loan Facility and Revolving Facility | Twelve Month SOFR
Long-term debt
Interest rate (as a percent)	0.71513%
Initial First Lien Term Loan Facility
Long-term debt
Principal			$ 480,800		$ 480,800			$ 480,800
Debt discounts on issuance		$ 1,500