STOCK-BASED COMPENSATION - Stock Options (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
Jun. 28, 2013
Share-based Compensation by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, December 28, 2012 (in shares)	639
Exercised (in shares)	(315)
Expired/Forfeited (in shares)	(123)
Outstanding, June 28, 2013 (in shares)	201
Share-based Compensation by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding, December 28, 2012 (in dollars per share)	$ 16.91
Exercised (in dollars per share)	$ 16.36
Expired/Forfeited (in dollars per share)	$ 21.04
Outstanding, June 28, 2013 (in dollars per share)	$ 15.24
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Exercisable, June 28, 2013 (in shares)	201
Exercisable, June 28, 2013 (in dollars per share)	$ 15.24
Stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Option expiration period	7 years
Option maximum contractual term	10 years

The maximum contractual term for outstanding stock option awards from the date of grant until expiration.

No definition available.

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- Definition

The contractual term for the majority of unvested stock options from the date of grant until expiration.

+ References

No definition available.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph A240

-Subparagraph b(1)(c), d(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

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- Definition

Weighted average price of options that were either forfeited or expired.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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

-Publisher FASB

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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