Associate Retirement Plans (Tables)

12 Months Ended

Dec. 30, 2017

Compensation And Retirement Disclosure [Abstract]

Schedule of Benefit Obligations, Pension & Postretirement Benefit Plans

The following tables set forth the actuarial present value of benefit obligations, funded status, changes in benefit obligations and plan assets, weighted average assumptions used in actuarial calculations and components of net periodic benefit costs for the Company’s significant pension and postretirement benefit plans, excluding multi-employer plans. The prepaid, current accrued, and noncurrent accrued benefit costs associated with pension and postretirement benefits are reported in “Other assets, net,” “Accrued payroll and benefits,” and “Postretirement benefits,” respectively, in the consolidated balance sheets.

	Pension Plan						Retiree Medical Plan
	December 30,			December 31,			December 30,			December 31,
(In thousands, except percentages)	2017			2016			2017			2016
Funded Status
Projected/Accumulated benefit obligation:
Balance at beginning of year	$	80,350		$	83,398		$	9,663		$	9,179
Service cost		—			—			184			187
Interest cost		2,345			2,977			345			345
Actuarial loss		4,662			1,598			303			213
Benefits paid		(7,204	)		(7,623	)		(296	)		(261	)
Balance at end of year	$	80,153		$	80,350		$	10,199		$	9,663

Fair value of plan assets:
Balance at beginning of year	$	81,982		$	84,753		$	—		$	—
Actual return on plan assets		6,477			4,852			—			—
Company contributions		—			—			296			261
Benefits paid		(7,204	)		(7,623	)		(296	)		(261	)
Balance at end of year	$	81,255		$	81,982		$	—		$	—
Funded (unfunded) status	$	1,102		$	1,632		$	(10,199	)	$	(9,663	)

Components of net amount recognized in consolidated balance sheets:
Noncurrent assets	$	1,102		$	1,632		$	—		$	—
Current liabilities		—			—			(417	)		(412	)
Noncurrent liabilities		—			—			(9,782	)		(9,251	)
Net asset (liability)	$	1,102		$	1,632		$	(10,199	)	$	(9,663	)

Amounts recognized in AOCI:
Net actuarial loss	$	18,205		$	16,938		$	1,678		$	1,434
Prior service credit		—			—			(250	)		(408	)
Accumulated other comprehensive loss	$	18,205		$	16,938		$	1,428		$	1,026

Weighted average assumptions at measurement date:
Discount rate	3.45%			3.82%			3.72%			4.26%
Ultimate health care cost trend rate	N/A			N/A			5.00%			5.00%

Components of Net Periodic Pension and Postretirement Benefit Cost (Income)

	Pension Plan									Retiree Medical Plan
(In thousands, except percentages)	2017			2016			2015			2017			2016			2015
Components of net periodic benefit cost (income):
Service cost	$	—		$	—		$	—		$	184		$	187		$	231
Interest cost		2,345			2,977			3,325			345			345			404
Amortization of prior service cost		—			—			—			(158	)		(158	)		(158	)
Expected return on plan assets		(3,836	)		(4,269	)		(4,923	)		—			—			—
Recognized actuarial net loss		221			706			827			59			42			174
Net periodic benefit (income) expense	$	(1,270	)	$	(586	)	$	(771	)	$	430		$	416		$	651
Settlement expense		548			692			—			—			—			—
Total (income) expense	$	(722	)	$	106		$	(771	)	$	430		$	416		$	651

Weighted average assumptions used to determine net periodic benefit cost (income):
Discount rate	3.82%			4.04%			3.75%			4.26%			4.55%			4.15%
Expected return on plan assets	4.83%			5.05%			5.50%			N/A			N/A			N/A

Schedule of Amounts Recognized in AOCI

The net actuarial loss and prior service cost included in AOCI and expected to be recognized in net periodic benefit cost in 2018 are as follows:

				Retiree
(In thousands)	Pension Plan			Medical Plan
Prior service credit	$	N/A		$	(158	)
Net actuarial loss			417		88

Assumed Current Healthcare Cost Trend Rates Used to Determine Net Periodic Benefit Cost (Income)

Assumed healthcare cost trend rates have a significant effect on the amounts reported for the Retiree Medical Plan. Assumed current healthcare cost trend rates used to determine net periodic benefit cost (income) were as follows:

	2017	2016	2015
Pre-65	N/A	7.50%	7.75%
Post-65	8.40%	8.40%	6.85%

Summary of Actual Assets Allocation

The following table summarizes both the targeted allocation of the Pension Plan’s asset allocation by asset category and actual allocations as of December 30, 2017 and December 31, 2016:

	Target			Actual
	December 30,			December 30,			December 31,
Asset Category	2017			2017			2016
Equity securities		20.0	%		19.3	%		20.8	%
Fixed income		80.0			79.4			76.9
Cash equivalents		—			1.3			2.3
Total		100.0	%		100.0	%		100.0	%

Summary of Fair Value Pension Plan Asset

The fair values of the Pension Plan assets at December 30, 2017 and December 31, 2016, by asset category, are as follows:

	Fair Value of Assets as of December 30, 2017
(In thousands)	Total		Level 1		Level 2		Level 3		NAV (a)
Mutual funds	$	18,194	$	—	$	—	$	—	$	18,194
Pooled funds		48,133		—		—		—		48,133
Money market fund		1,037		—		1,037		—		—
Guaranteed annuity contract		13,891		—		—		13,891		—
Total fair value	$	81,255	$	—	$	1,037	$	13,891	$	66,327

	Fair Value of Assets as of December 31, 2016
(In thousands)	Total		Level 1		Level 2		Level 3		NAV (a)
Mutual funds	$	14,178	$	—	$	—	$	—	$	14,178
Pooled funds		50,506		—		—		—		50,506
Money market fund		1,872		—		1,872		—		—
Guaranteed annuity contract		15,426		—		—		15,426		—
Total fair value	$	81,982	$	—	$	1,872	$	15,426	$	64,684

(a)

Assets are measured at net asset value (“NAV”) (or its equivalent) on a non-active market, and therefore, have not been classified in the fair value hierarchy.

Summary of Reconciliation of Beginning and Ending Balances for Level 3 Assets

Level 3 assets consist of guaranteed annuity contracts. A reconciliation of the beginning and ending balances for Level 3 assets is as follows:

(In thousands)	December 30, 2017			December 31, 2016
Balance at beginning of year	$	15,426		$	16,198
Purchases, sales, issuances and settlements, net		(2,222	)		(1,733	)
Interest income		552			631
Unrealized gains		135			330
Balance at end of year	$	13,891		$	15,426

Estimated Benefit Payments Expected to be Paid

The following estimated benefit payments are expected to be paid in the following fiscal years:

(In thousands)	2018		2019		2020		2021		2022		2022 to 2026
Pension benefits	$	8,668	$	8,274	$	7,702	$	7,843	$	7,035	$	26,850
Post-retirement medical benefits		417		463		503		540		575		3,232