Retirement Plans (Tables)

9 Months Ended

12 Months Ended

Oct. 01, 2016

Jan. 02, 2016

Compensation and Retirement Disclosure [Abstract]

Components of Net Pension and Other Post Retirement Benefit Costs

The components of net pension and other postretirement benefit costs for Company sponsored plans for the periods presented are provided below (in thousands):

	39-weeks Ended
	Pension Benefits						Other Postretirement Plans
	October 1,			September 26,			October 1,			September 26,
	2016			2015			2016			2015
Service cost	$	2,887		$	31,617		$	28		$	28
Interest cost		30,344			30,016			221			198
Expected return on plan assets		(36,220	)		(40,805	)		—			—
Amortization of prior service cost (credit)		118			146			5			(47	)
Amortization of net loss (gain)		6,191			9,053			(53	)		11
Settlements		2,250			1,950			—			—
Net periodic benefit costs	$	5,570		$	31,977		$	201		$	190

The components of net pension and other postretirement benefit costs (credits) for the last three fiscal years were as follows (in thousands):

	Pension Benefits
	2015			2014			2013
Components of net periodic pension cost:
Service cost	$	32,582		$	27,729		$	32,773
Interest cost		39,628			37,468			33,707
Expected return on plan assets		(54,881	)		(47,396	)		(42,036	)
Amortization of prior service cost		195			198			198
Amortization of net loss		10,394			2,294			13,288
Settlements		3,358			2,370			1,778
Special termination benefit		422			—			—
Net periodic pension costs	$	31,698		$	22,663		$	39,708

	Other Postretirement Plans
	2015			2014			2013
Components of net periodic postretirement benefit costs:
Service cost	$	37		$	79		$	153
Interest cost		264			318			431
Amortization of prior service credit		(62	)		(334	)		—
Amortization of net loss (gain)		14			(75	)		112
Curtailment gain		—			(2,096	)		—
Net periodic other postretirement benefit costs (credits)	$	253		$	(2,108	)	$	696

Changes in Plan Assets and Benefit Obligations

Changes in plan assets and benefit obligations recorded in Other comprehensive income (loss) for pension and Other postretirement benefits for the last three fiscal years were as follows (in thousands):

	Pension Benefits
	2015			2014			2013
Changes recognized in other comprehensive income (loss):
Actuarial (loss) gain	$	(3,171	)	$	(160,345	)	$	112,816
Curtailment		73,191			—			—
Amortization of prior service cost		195			198			198
Amortization of net loss		10,394			2,294			13,288
Settlements		3,358			2,370			1,778
Net amount recognized	$	83,967		$	(155,483	)	$	128,080

	Other Postretirement Plans
	2015			2014			2013
Changes recognized in other comprehensive income (loss):
Actuarial gain (loss)	$	1,035		$	(986	)		2,198
Prior service (cost) credit		(1,291	)		3,612			—
Amortization of prior service credit		(62	)		(334	)		—
Amortization of net loss (gain)		14			(75	)		112
Curtailment		—			(2,096	)		—
Net amount recognized	$	(304	)	$	121		$	2,310

Funded Status of the Defined Benefit Plans

The funded status of the defined benefit plans for the last three fiscal years was as follows (in thousands):

	Pension Benefits
	2015			2014			2013
Change in benefit obligation:
Benefit obligation at beginning of period	$	970,469		$	733,752		$	795,989
Service cost		32,582			27,729			32,773
Interest cost		39,628			37,468			33,707
Actuarial (gain) loss		(73,282	)		199,807			(98,962	)
Curtailment		(73,191	)		—			—
Settlements		(15,287	)		(11,517	)		(13,186	)
Special termination benefit		422			—			—
Benefit disbursements		(18,455	)		(16,770	)		(16,569	)
Benefit obligation at end of period		862,886			970,469			733,752
Change in plan assets:
Fair value of plan assets at beginning of period		749,166			641,749			566,768
Return on plan assets		(21,572	)		86,857			55,890
Employer contribution		48,489			48,847			48,846
Settlements		(15,287	)		(11,517	)		(13,186	)
Benefit disbursements		(18,455	)		(16,770	)		(16,569	)
Fair value of plan assets at end of period		742,341			749,166			641,749
Net amount recognized	$	(120,545	)	$	(221,303	)	$	(92,003	)

	Other Postretirement Plans
	2015			2014			2013
Change in benefit obligation:
Benefit obligation at beginning of period	$	6,789		$	9,375		$	11,357
Service cost		37			79			153
Interest cost		264			318			431
Employee contributions		209			215			219
Actuarial (gain) loss		(1,035	)		986			(2,198	)
Curtailment		—			(3,612	)		—
Plan amendment		1,291			—			—
Benefit disbursements		(581	)		(572	)		(587	)
Benefit obligation at end of period		6,974			6,789			9,375
Change in plan assets:
Fair value of plan assets at beginning of period		—			—			—
Employer contribution		372			357			369
Employee contributions		209			215			219
Benefit disbursements		(581	)		(572	)		(587	)
Fair value of plan assets at end of period		—			—			—
Net amount recognized	$	(6,974	)	$	(6,789	)	$	(9,375	)

	Pension Benefits
	2015			2014			2013
Amounts recognized in the consolidated balance sheets consist of the following:
Accrued benefit obligation—current	$	(546	)	$	(453	)	$	(401	)
Accrued benefit obligation—noncurrent		(119,999	)		(220,850	)		(91,602	)
Net amount recognized in the consolidated balance sheets	$	(120,545	)	$	(221,303	)	$	(92,003	)
Amounts recognized in Accumulated other comprehensive loss consist of the following:
Prior service cost	$	(438	)	$	(634	)	$	(832	)
Net loss		(147,675	)		(231,446	)		(75,765	)
Net loss recognized in Accumulated other comprehensive loss	$	(148,113	)	$	(232,080	)	$	(76,597	)
Additional information:
Accumulated benefit obligation	$	854,858		$	888,937		$	679,225
Unfunded prepaid ( accrued) pension cost		27,568			10,777			(15,406	)

	Other Postretirement Plans
	2015			2014			2013
Amounts recognized in the consolidated balance sheets consist of the following:
Accrued benefit obligation—current	$	(525	)	$	(533	)	$	(583	)
Accrued benefit obligation—noncurrent		(6,449	)		(6,256	)		(8,792	)
Net amount recognized in the consolidated balance sheets	$	(6,974	)	$	(6,789	)	$	(9,375	)
Amounts recognized in Accumulated other comprehensive loss consist of the following:
Net gain	$	1,064		$	1,368		$	1,247
Net gain recognized in Accumulated other comprehensive income	$	1,064		$	1,368		$	1,247
Additional information—unfunded accrued benefit cost	$	(8,038	)	$	(8,157	)	$	(10,622	)

	Pension Benefits		Other Postretirement Benefits
Amounts expected to be amortized from Accumulated other comprehensive loss in the next fiscal year:
Net loss (gain)	$	7,210	$	(71	)
Prior service cost		157		6
Net expected to be amortized	$	7,367	$	(65	)

Assumptions to Determine Benefit Obligations at Period-end and Net Pension Costs

Weighted average assumptions used to determine benefit obligations at period-end and net pension costs for the last three fiscal years were as follows:

	Pension Benefits
	2015			2014			2013
Benefit obligation:
Discount rate		4.64	%		4.25	%		5.19	%
Annual compensation increase		3.60	%		3.60	%		3.60	%
Net cost:
Discount rate		4.25	%		5.19	%		4.29	%
Expected return on plan assets		7.00	%		7.25	%		7.25	%
Annual compensation increase		3.60	%		3.60	%		3.60	%

	Other Postretirement Plans
	2015			2014			2013
Benefit obligation—discount rate		4.40	%		4.05	%		4.80	%
Net cost—discount rate		4.05	%		4.80	%		3.90	%

Assumed Health Care Trend Rates

The assumed healthcare trend rates for the last three fiscal years were as follows:

	2015			2014			2013
Immediate rate		7.40	%		7.10	%		7.30	%
Ultimate trend rate		4.50	%		4.50	%		4.50	%
Year the rate reaches the ultimate trend rate		2038			2028			2028

Schedule of Level Three Defined Benefit Plan Assets

The following table (in thousands) sets forth the fair value of our defined benefit plans’ assets by asset fair value hierarchy level.

	Asset Fair Value as of January 2, 2016
	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	4,576	$	—	$	—	$	4,576
Mutual funds:
Domestic equities		33,033		—		—		33,033
International equities		26,760		—		—		26,760
Long-term debt securities:
Corporate debt securities:
Domestic		—		181,973		—		181,973
International		—		18,000		—		18,000
U.S. government securities		—		143,904		—		143,904
Government agencies securities		—		7,789		—		7,789
Other		—		3,216		—		3,216
	$	64,369	$	354,882	$	—		419,251
Common collective trust funds:
Cash equivalents								5,272
Domestic equities								264,534
International equities								53,284
Total investments measured at NAV as a practical expedient								323,090
Total defined benefit plans’ assets							$	742,341

	Asset Fair Value as of December 27, 2014
	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	5,800	$	—	$	—	$	5,800
Mutual funds:
Domestic equities		32,348		—		—		32,348
International equities		23,199		—		—		23,199
Long-term debt securities:
Corporate debt securities:
Domestic		—		199,500		—		199,500
International		—		25,633		—		25,633
U.S. government securities		—		136,048		—		136,048
Government agencies securities		—		10,270		—		10,270
Other		—		4,070		—		4,070
	$	61,347	$	375,521	$	—		436,868
Common collective trust funds:
Cash equivalents								3,897
Domestic equities								259,627
International equities								48,774
Total investments measured at NAV as a practical expedient								312,298
Total defined benefit plans’ assets							$	749,166

Estimated Future Benefit Payments

Estimated future benefit payments, under Company sponsored plans as of January 2, 2016, were as follows (in thousands):

	Pension Benefits		Postretirement Plans
2016	$	35,998	$	525
2017		37,885		540
2018		37,339		555
2019		41,060		553
2020		42,313		544
Subsequent five years		221,289		2,599

Multiemployer Pension Plans

Pension Fund	EIN/ Plan Number	PPA Zone Status		FIP/RP Status Pending / Implemented	Surcharge Imposed	Expiration Dates
		2015	2014
Central States, Southeast and Southwest Areas Pension Fund	36-6044243/001	Red	Red	Implemented	No	2/28/16 (1) to 3/31/20
Western Conference of Teamsters Pension Trust Fund	91-6145047/001	Green	Green	N/A	No	10/01/15(1) to 09/30/20
Minneapolis Food Distributing Industry Pension Plan	41-6047047/001	Green	Green	Implemented	No	4/1/17
Teamster Pension Trust Fund of Philadelphia and Vicinity	23-1511735/001	Yellow	Yellow	Implemented	No	2/10/18
Truck Drivers & Helpers Local 355 Pension Fund	52-6043608-001	Yellow	Yellow	Implemented	No	3/15/15(2)
Local 703 I.B. of T. Grocery and Food Employees’ Pension Plan	36-6491473/001	Green	Green	N/A	No	6/30/18
United Teamsters Trust Fund A	13-5660513/001	Yellow	Yellow	Implemented	No	5/30/19
Warehouse Employees Local 169 and Employers Joint Pension Fund	23-6230368/001	Red	Red	Implemented	No	2/10/18
Warehouse Employees Local No. 570 Pension Fund	52-6048848/001	Green	Green	N/A	No	3/15/15(2)
Local 705 I.B. of T. Pension Trust Fund	36-6492502/001	Red	Red	Implemented	No	12/29/18

(1) The collective bargaining agreement for this pension fund is operating under terms of the old agreement or an extension.

(2) The Company is currently engaged in discussions with unions representing certain employees regarding its tentative decision to close a distribution facility. The collective bargaining agreement for these pension funds are operating under terms of the old agreements.

Contributions to Multiemployer Pension Plans

The following table provides information about the Company’s contributions to its multiemployer pension plans. For plans that are not individually significant to the Company, the total amount of USF contributions is aggregated.

	USF Contribution(1)(2) (in thousands)						USF Contributions Exceed 5% of Total Plan Contributions(3)
Pension Fund	2015		2014		2013		2014		2013
Central States, Southeast and Southwest Areas Pension Fund	$	4,115	$	3,930	$	3,908		No		No
Western Conference of Teamsters Pension Trust Fund		10,227		9,761		9,249		No		No
Minneapolis Food Distributing Industry Pension Plan		5,200		5,026		4,565		Yes		Yes
Teamster Pension Trust Fund of Philadelphia and Vicinity		3,461		3,163		2,939		No		No
Truck Drivers and Helpers Local 355 Pension Fund		1,321		1,373		1,428		Yes		Yes
Local 703 I.B. of T. Grocery and Food Employees’ Pension Plan		1,366		1,282		1,036		Yes		Yes
United Teamsters Trust Fund A		1,554		1,537		1,816		Yes		Yes
Warehouse Employees Local 169 and Employers Joint Pension Fund		897		907		981		Yes		Yes
Warehouse Employees Local No. 570 Pension Fund		908		863		929		Yes		Yes
Local 705 I.B. of T. Pension Trust Fund		2,729		2,479		2,189		No		No
Other Funds		1,852		1,723		1,818		—		—
	$	33,630	$	32,044	$	30,858

(1) Contributions made to these plans during the Company’s fiscal year, which may not coincide with the plans’ fiscal years.

(2) Contributions do not include payments related to multiemployer pension withdrawals as described in Note 13, Restructuring Liabilities.

(3) Indicates whether the Company was listed in the respective multiemployer plan Form 5500 for the applicable plan year as having made more than 5% of total contributions to the plan.