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Employee Benefit Plans, Deferred Compensation Plan and Retirement Benefit Plan (Tables)

12 Months Ended

Dec. 28, 2020

Compensation And Retirement Disclosure [Abstract]

Changes in Benefit Obligation and Plan Assets in Defined Benefit Plan

The following tables set forth the changes in benefit obligation and the plan assets in the defined benefit plan described above for the years ended December 28, 2020, December 30, 2019 and December 31, 2018:

		For the Year Ended
Change in Benefit Obligations		December 28, 2020				December 30, 2019				December 31, 2018
		(In thousands)
Benefit obligation at beginning of year		$	(30,600	)		$	(27,661	)		$	(27,525	)
Service cost			—				(397	)			(292	)
Interest cost			(907	)			(1,109	)			(758	)
Amendments/curtailments/special termination			—				1,636				—
Actuarial (loss) gain			(3,146	)			(4,174	)			264
Benefits paid			1,183				1,105				650
Benefit obligation at end of year		$	(33,470	)		$	(30,600	)		$	(27,661	)
Accumulated benefit obligation at end of year		$	33,470			$	30,600			$	26,191

		For the Year Ended
Change in Plan Assets		December 28, 2020				December 30, 2019				December 31, 2018
		(In thousands)
Fair value of plan assets at beginning of year		$	21,287			$	18,251			$	19,643
Actual return on plan assets			2,704				3,346				(1,021	)
Employer contributions			676				795				279
Benefits paid			(1,183	)			(1,105	)			(650	)
Fair value of plan assets at end of year		$	23,484			$	21,287			$	18,251
Unfunded status		$	(9,986	)		$	(9,313	)		$	(9,410	)
Net amount recognized		$	(9,986	)		$	(9,313	)		$	(9,410	)

Schedule of Amounts Before Income Tax Effect Recognized in Consolidated Balance Sheets

Amounts before income tax effect recognized in the consolidated balance sheets consists of the following:

		As of				As of
		December 28, 2020				December 30, 2019
		(In thousands)
Other long-term liabilities		$	(9,986	)		$	(9,313	)
Net amount recognized		$	(9,986	)		$	(9,313	)

Schedule of Amounts Before Income Tax Effect Included in Accumulated Other Comprehensive Loss

Amounts before income tax effect included in accumulated other comprehensive loss as of December 28, 2020 and
December 30, 2019 are as follows:

		December 28, 2020				December 30, 2019
		(In thousands)
Net actuarial loss		$	(3,811	)		$	(2,097	)
Accumulated other comprehensive loss		$	(3,811	)		$	(2,097	)

Schedule of Components Included in Net Periodic Benefit Cost and Increase in Minimum Liability Included in Other Comprehensive Loss

The components included in the net periodic benefit cost and the increase in minimum liability included in other comprehensive loss for the years ended December 28, 2020, December 30, 2019 and December 31, 2018 are as follows:

		December 28, 2020				December 30, 2019				December 31, 2018
		(In thousands)
Service cost		$	—			$	397			$	292
Interest cost			907				1,109				758
Expected return on plan assets			(1,272	)			(1,228	)			(920	)
Net periodic benefit cost		$	(365	)		$	278			$	130

Schedule of Weighted-Average Assumptions

The weighted-average assumptions used to determine benefit obligations for this plan as of December 28, 2020,
December 30, 2019 and December 31, 2018 are as follows:

		December 28, 2020				December 30, 2019				December 31, 2018
Discount rate			2.20		%		3.02		%		4.09		%
Rate of compensation increase			—				3.20				3.20
Expected return on plan assets			5.50				6.00				6.75

The weighted-average assumptions used to determine net periodic benefit cost for the years ended December 28, 2020, December 30, 2019 and December 31, 2018 are as follows:

		For the Year Ended
		December 28, 2020				December 30, 2019				December 31, 2018
Discount rate			3.02		%		4.09		%		3.96		%
Rate of compensation increase			—				3.20				3.20
Expected return on plan assets			6.00				6.75				6.75

Schedule of Plan Target Allocation and Asset Allocation

The target allocation for 2021 and the plan asset allocation at the end of 2020 and 2019, in percentages, by asset category are as follows:

		Target Allocation 2021					December 28, 2020					December 30, 2019
Equity securities (1)			67		%			68		%			66		%
Debt securities (2)			30					30					31
Cash and cash equivalents (3)			3					2					3
Total			100		%			100		%			100		%

Summarizes Plan Assets Measured at Fair Value

The following table summarizes plan assets measured at fair value as of December 28, 2020 and December 30, 2019:

		As of
		December 28, 2020
		Total				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3)
		(In thousands)
Equity securities (1)		$	15,922			$	15,922			$	—			$	—
Debt securities (2)			7,015				7,015				—				—
Cash and cash equivalents (3)			547				547				—				—
Total		$	23,484			$	23,484			$	—			$	—
		As of
		December 30, 2019
		Total				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Observable Inputs (Level 2)				Significant Unobservable Inputs (Level 3)
		(In thousands)
Equity securities (1)		$	14,131			$	14,131			$	—			$	—
Debt securities (2)			6,488				6,488				—				—
Cash and cash equivalents (3)			668				668				—				—
Total		$	21,287			$	21,287			$	—			$	—

(1) Equity securities include U.S. and foreign exchange traded common and preferred stocks and mutual funds. Common and preferred shares issued by U.S. and non-U.S. corporations are traded actively on exchanges and price quotes for these shares are readily available. Holdings of corporate stock are categorized as Level 1 investments.

(2) Debt securities include the debt of the U.S. Treasury and U.S. and foreign corporate issuers. U.S. Treasury notes and bonds are actively traded and price quotes for these securities are readily available. Holdings of U.S. Treasury notes and bonds are categorized as Level 1 investments.

(3) Cash and cash equivalents include short-term U.S. government investment notes, short-term money market mutual funds, accrued income and cash held on account. Cash held on account and short- term U.S. government investment notes (including accrued income thereon) for which there is an active market and daily pricing for the security are categorized as Level 1 investments.

Schedule of Expected Future Service Benefits Payments

The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid: 

		(In thousands)
2021		$	1,294
2022			1,335
2023			1,421
2024			1,514
2025			1,572
Years 2026 through 2030			8,513

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