Summary of Significant Accounting Policies - Accumulated Other Comprehensive Income (Loss), Tax (Details) - USD ($) $ in Thousands	Jan. 01, 2022	Jan. 02, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrecognized pension benefit costs, Tax	$ 39,470	$ (89,059)
Unrealized loss on interest rate swap, tax	(4,501)	(13,120)
Unrealized gain on certain investments, Tax	$ 433	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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