Allowance For Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Dec. 31, 2023	Mar. 27, 2022	Dec. 25, 2022	Dec. 31, 2023	Dec. 25, 2022	Dec. 26, 2021
Accounts Receivable
Current period provision for expected credit losses, net				$ 5,393	$ 20,539	$ (852)
Russia
Notes Receivable
Non-cash reserves for accounts receivable and notes receivable		$ 14,600
UK
Notes Receivable
Non-cash reserves for accounts receivable and notes receivable	$ 1,700		$ 3,700
Accounts Receivable
Accounts Receivable
Balance at beginning of period		2,364		6,718	2,364
Current period provision for expected credit losses, net				3,609	6,474
Write-offs charged against the allowance				(1,974)	(2,120)
Balance at end of period	8,353		6,718	8,353	6,718	2,364
Accounts Receivable | Middle East
Accounts Receivable
Current period provision for expected credit losses, net	900
Notes Receivable
Notes Receivable
Balance at beginning of period		$ 1,500		14,499	1,500
Current period provision for expected credit losses, net				1,784	14,066
Write-offs charged against the allowance				(191)	(1,067)
Balance at end of period	$ 16,092		$ 14,499	$ 16,092	$ 14,499	$ 1,500