Investments - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 25, 2021
Debt Securities, Available-for-sale [Line Items]
Investments maximum maturity period	5 years
Unrealized gain (loss), net of unrealized gains/losses, on the investments in the bond portfolio	$ (10,763,000)	$ 144,000
Guarantee Payment of Insurance Claims
Debt Securities, Available-for-sale [Line Items]
Letters of credit outstanding	76,567,000
Current Investments
Debt Securities, Available-for-sale [Line Items]
Investments providing collateral for letters of credit to guarantee insurance claims	53,955,000
Non-Current Investments
Debt Securities, Available-for-sale [Line Items]
Investments providing collateral for letters of credit to guarantee insurance claims	31,119,000
Total non-current investments	$ 104,575,000