Benefit Plans - Estimated Benefit Payments Under Pension and Postretirement Benefit Plans (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012
Pension benefits [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
2013	$ 18,912
2014	19,611
2015	20,261
2016	21,221
2017	21,480
2018 through 2022	117,012
Total estimated payments	218,497
Postretirement benefits [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
2013	173
2014	180
2015	168
2016	169
2017	152
2018 through 2022	464
Total estimated payments	$ 1,306

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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

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

+ Details

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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.

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- Definition

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

+ References

No definition available.

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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.

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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.

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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.

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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.

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