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Investment Securities - Additional Information (Details)	3 Months Ended
	Mar. 27, 2022 USD ($) Security Position	Mar. 28, 2021 USD ($)	Dec. 26, 2021 USD ($)
Schedule Of Available For Sale Securities [Line Items]
Securities incurred unrealized losses	$ 1,026,000
Unrealized holding loss on available-for-sale securities, tax	242,000	$ 7,000
Unrealized Losses	$ 1,396,000		$ 371,000
Unrealized Loss Position greater than 12 months \| Position	3
Aggregate unrealized losses	$ 124,000
Allowance for credit losses on the investment securities	0
Bonds \| Minimum
Schedule Of Available For Sale Securities [Line Items]
Unrealized Losses	$ 65,000
U.S. Corporate Bonds and U.S. Dollar Denominated Foreign Bonds
Schedule Of Available For Sale Securities [Line Items]
Number of Securities Issuances for unrealized losses \| Security	89
Unrealized Losses	$ 1,371,000		$ 364,000