SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified			12 Months Ended
Dec. 29, 2013	Dec. 30, 2012	Dec. 29, 2013 Software and software development costs
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of finite-lived intangible assets( in years)			5 years
Capitalized computer software	$ 18,217	$ 9,462

The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

Name:	us-gaap_CapitalizedComputerSoftwareNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant