Schedule of Cash-Settled Stock Appreciation Rights Activity (Detail) (Cash-settled SARs, USD $)	12 Months Ended
Dec. 28, 2012
Cash-settled SARs
Shares
Beginning of year	492,131
Granted	16,200
Forfeited/expired	(52,136)
Ending of year	456,195
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding - beginning of year	$ 6.81
Weighted Average Exercise Price, Granted	$ 3.98
Weighted Average Exercise Price, Forfeited/expired	$ 7.15
Outstanding - end of year	$ 6.67

The number of equity-based payment instruments that validly exist and are outstanding as of the balance sheet date.

No definition available.

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- Definition

Exercise price of outstanding stock appreciation rights

+ References

No definition available.

+ Details

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- Definition

Exercise price of stock appreciation rights forfeited or expired during period

+ References

No definition available.

+ Details

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- Definition

Exercise price of stock appreciation rights granted during the period

+ References

No definition available.

+ Details

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(e)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(c)

-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.

+ Details

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