Employee Benefit Plans - Amounts Recognized In Consolidated Balance Sheet and Accumulated Other Comprehensive Income (Details) - United States - USD ($) $ in Thousands	Dec. 29, 2019	Dec. 30, 2018
Defined Benefit Plan Disclosure [Line Items]
Current liabilities	$ 2,030	$ 2,030
Non-current liabilities	29,710	27,112
Total benefit obligation	31,740	29,142
Unrecognized actuarial loss	$ 9,139	$ 6,906

Amount, after tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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