Allowance For Credit Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Allowance for Credit Loss
Current period (credit) provision for expected credit losses	$ (852)	$ (4,734)	$ 3,139
Accounts Receivable
Allowance for Credit Losses
Balance at beginning of period	3,622	7,341
Current period (benefit) credit for expected credit losses	16	(3,843)
Write-offs charged against the allowance	(1,274)	(788)
Balance at end of period	2,364	3,622	7,341
Notes Receivable
Allowance for Credit Losses
Balance at beginning of period	3,211	3,572
Current period (benefit) credit for expected credit losses	(583)	(191)
Write-offs charged against the allowance	(843)	(843)
Recoveries collected	(285)	(844)
Transfers		1,054
Balance at end of period	$ 1,500	3,211	3,572
Interest Receivable
Allowance for Credit Losses
Balance at beginning of period		910
Current period (benefit) credit for expected credit losses		144
Transfers		(1,054)
Balance at end of period			910
Adjustment | ASU 2016-13 | Accounts Receivable
Allowance for Credit Losses
Balance at beginning of period		912
Balance at end of period			912
Adjustment | ASU 2016-13 | Notes Receivable
Allowance for Credit Losses
Balance at beginning of period		463
Balance at end of period			463
Adjusted Balance | ASU 2016-13 | Accounts Receivable
Allowance for Credit Losses
Balance at beginning of period		8,253
Balance at end of period			8,253
Adjusted Balance | ASU 2016-13 | Notes Receivable
Allowance for Credit Losses
Balance at beginning of period		4,035
Balance at end of period			4,035
Adjusted Balance | ASU 2016-13 | Interest Receivable
Allowance for Credit Losses
Balance at beginning of period		$ 910
Balance at end of period			$ 910