Summary of Significant Accounting Policies - Vendor Allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Accounting Policies [Abstract]
Cost of Goods Sold, Vendor Allowances	$ 100,100	$ 133,500	$ 130,400
Vendor Paid Cooperative Advertising Credits	3,400	21,700	$ 24,800
Accounts Receivable, Earned Advertising Credits	585	886
Accounts Receivable, Earned Promotional Discounts	3,600	8,600
Unearned Income for Vendor Programs	$ 2,500	$ 3,300