v2.4.0.8

Pension and Postretirement Benefits - Assumptions Used and Schedule of Estimated Future Benefit Payments(Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	Jan. 01, 2012
Pension [Member]
Assumptions used in connection with defined benefit plan [Abstract]
Weighted average discount rate	4.10%	5.10%
Rate of increase in future compensation levels	0.00%	0.00%
Expected return on assets	7.75%	7.75%
Current year trend	0.00%	0.00%
Ultimate year trend	0.00%	0.00%
Assumptions used to calculate the net periodic benefit cost [Abstract]
Weighted average discount rate	5.10%	5.70%
Rate of increase in future compensation levels	0.00%	0.00%
Expected return on assets	7.75%	7.75%
Current year trend	0.00%	0.00%
Ultimate year trend	0.00%	0.00%
Estimated future benefit payments [Abstract]
2013	$ 1,451
2014	1,451
2015	1,498
2016	1,528
2017	1,536
2018 - 2022	7,942
Employer contribution expected to be paid during the next fiscal year	1,147
Postretirement [Member]
Assumptions used in connection with defined benefit plan [Abstract]
Weighted average discount rate	3.60%	4.40%
Rate of increase in future compensation levels	0.00%	0.00%
Expected return on assets	0.00%	0.00%
Current year trend	7.70%	8.10%
Ultimate year trend	4.80%	4.80%
Year of ultimate trend	2022	2021
Assumptions used to calculate the net periodic benefit cost [Abstract]
Weighted average discount rate	4.40%	5.30%
Rate of increase in future compensation levels	0.00%	0.00%
Expected return on assets	0.00%	0.00%
Current year trend	7.70%	8.10%
Ultimate year trend	4.80%	4.80%
Year of ultimate trend	2022	2021
Estimated future benefit payments [Abstract]
2013	430
2014	428
2015	433
2016	428
2017	393
2018 - 2022	1,743
Employer contribution expected to be paid during the next fiscal year	$ 430

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

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph j

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

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- Definition

Expected rate of compensation increases (for pay-related plans).

+ References

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- Definition

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

+ References

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- Definition

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

-Paragraph 264

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

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-Paragraph 5

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Long-Term Rate of Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512013

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- Definition

Expected rate of compensation increases (for pay-related plans).

+ References

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- Definition

The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

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- Definition

Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

+ 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

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

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-Publisher FASB

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-Number 132R

-Paragraph 5

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Health Care Cost Trend Rate

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- Definition

The ultimate trend rate for health care costs.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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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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