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Commitments and Contingencies - Letters of Credit and Bank Guarantees (Details) (Performance Obligations and Customer Deposit Guarantees, USD $) In Thousands, unless otherwise specified	Jan. 03, 2015
Performance Obligations and Customer Deposit Guarantees
Line of Credit Facility [Line Items]
Outstanding letters of credit and bank guarantees	$ 9,861us-gaap_LettersOfCreditOutstandingAmount / us-gaap_CreditFacilityAxis = us-gaap_LetterOfCreditMember

X

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration