Debt securities comprised number of institutional bond.

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- Definition

Defined contribution percentage portion of participants contribution first matched by company.

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Defined contribution plan employer discretionary contribution optional additional matching percentage.

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Maximum percentage employee pay the employer may contribute to a defined contribution plan.

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Effective date of collective bargaining agreements.

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- Definition

The Company's likely liability if the Company withdraws from a multi-employer pension plan.

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No definition available.

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Multi-employer pension plan rehabilitation Plan adoption effective date.

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No definition available.

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Multi employer pension plan exit annual payment amount.

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Multi-employer pension plan exit liability recorded.

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- Definition

Multiemployer plans listing in pension funds minimum contribution reckoning percent.

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No definition available.

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Multiemployer plans status green zone minimum funded percentage.

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No definition available.

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Weighted average duration of institutional bond.

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For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Accumulated Benefit Obligation
-URI http://asc.fasb.org/extlink&oid=6503844

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

The interest rate used to adjust for the time value of money for the plan.

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- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Expected Long-Term Rate of Return on Plan Assets
-URI http://asc.fasb.org/extlink&oid=6512046

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

Net increase or decrease in the plan benefit obligation during the reporting period.

+ References

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- Definition

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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No definition available.

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Health Care Cost Trend Rate
-URI http://asc.fasb.org/extlink&oid=6514820

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (l)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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- Definition

Amount of net gain (loss) recognized in net periodic benefit cost due to settlements and curtailments. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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- Definition

Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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- Definition

The ultimate trend rate for health care costs.

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- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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- Definition

Year the ultimate health care cost trend rate is expected to be reached, in CCYY format.

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

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No definition available.

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

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No definition available.

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- Definition

Expiration date of the collective bargaining arrangement requiring contributions to the multiemployer plan, in CCYY-MM-DD format. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-SubTopic 80
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-URI http://asc.fasb.org/extlink&oid=49170332&loc=SL14450657-114947

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Amount of contributions made to the multiemployer plan by all employers who participate in the plan. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

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Benefit Plans - Additional Information (Detail) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 29, 2013 USD ($)	Jan. 03, 2016 USD ($) Security	Dec. 28, 2014 USD ($)	Dec. 29, 2013 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Non-cash charge due to lump sum distribution	$ 12,000
Benefit pension plan, actuarial gain (loss), due to change in discount rate and lower return on investment		$ 10,800	$ (51,900)
Benefit pension plans, benefit obligation, discount rate	5.21%	4.72%	4.32%	5.21%
Accumulated benefit obligation		$ 261,500	$ 279,700
Defined benefit plan investment allocation		100.00%	100.00%
Debt securities comprised number of institutional bond \| Security		2
Weighted average duration of institutional bond		3 years
Weighted average expected long-term rate of return on plan assets		6.50%
Benefit plans, weighted average health care trend rate used in measurement of postretirement benefit expense				8.00%
Benefit plans, ultimate weighted average health care cost trend				5.00%
Benefit plans, year that rate reaches ultimate trend rate	2019			2019
Likely withdrawal liability if Company withdraws from multi-employer pension plan		$ 4,500
Multi-employer plans status green zone minimum funded percentage		80.00%
Multi-employer plans listing in pension funds minimum contribution reckoning percent		5.00%
Multi-employer pension plan exit liability recorded		$ 8,500
Multi-employer pension plan exit annual payment amount		1,000
Multi employer defined contribution plans		$ 500	$ 500	$ 400
Rehabilitation Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Multi-employer pension plan Rehabilitation Plan adoption effective date		Jan. 01, 2015
Collective bargaining agreement, effective date		Apr. 28, 2014
U.S. Large Capitalization Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocation as per guidelines, minimum		30.00%
Weighted average asset allocation as per guidelines, maximum		45.00%
Defined benefit plan investment allocation		40.00%	41.00%
Weighted average expected long-term rate of return on plan assets		3.30%
U.S. Small/Mid-Capitalization Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocation as per guidelines, minimum		0.00%
Weighted average asset allocation as per guidelines, maximum		20.00%
Defined benefit plan investment allocation		5.00%	5.00%
Weighted average expected long-term rate of return on plan assets		0.40%
International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocation as per guidelines, minimum		0.00%
Weighted average asset allocation as per guidelines, maximum		10.00%
Defined benefit plan investment allocation		15.00%	14.00%
Weighted average expected long-term rate of return on plan assets		1.40%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average asset allocation as per guidelines, minimum		10.00%
Weighted average asset allocation as per guidelines, maximum		50.00%
Defined benefit plan investment allocation		40.00%	40.00%
Weighted average expected long-term rate of return on plan assets		1.40%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan investment allocation		60.00%
Minimum [Member] \| Employer-Teamsters and Pension Trust Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Multi-employer plans collective bargaining arrangements, expiration date		Apr. 29, 2017
Maximum [Member] \| Employer-Teamsters and Pension Trust Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Multi-employer plans collective bargaining arrangements, expiration date		Jul. 26, 2018
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit pension plans, benefit obligation, discount rate	5.21%	4.72%	4.32%	5.21%
Benefit pension plan, anticipated contribution		$ 9,337
Weighted average expected long-term rate of return on plan assets		6.50%	7.00%	7.00%
Pension Plans [Member] \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit pension plan, anticipated contribution		$ 10,000
Pension Plans [Member] \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit pension plan, anticipated contribution		$ 12,000
401(k) Savings Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company maximum contribution percentage under plan		5.00%	5.00%	5.00%
Defined contribution plan matching contribution percentage accrued		5.00%	5.00%	5.00%
Defined contribution plan contribution amount		$ 8,300	$ 6,700
Defined contribution percentage portion of participants contribution first matched by Company		3.50%	3.50%
Defined contribution percentage portion of additional contribution increase per option of company		1.50%	1.50%
Cost recognized		$ 10,700	$ 8,800	$ 8,300
Pre Medicare [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit plans, weighted average health care trend rate used in measurement of postretirement benefit expense		7.50%	8.00%
Benefit plans, ultimate weighted average health care cost trend		5.00%	5.00%
Benefit plans, year that rate reaches ultimate trend rate		2021	2021
Post Medicare [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit plans, weighted average health care trend rate used in measurement of postretirement benefit expense		7.00%	7.50%
Benefit plans, ultimate weighted average health care cost trend		5.00%	5.00%
Benefit plans, year that rate reaches ultimate trend rate		2021	2021