Name:	fosl_DebtInstrumentApplicableMarginBasedOnLeverageRatio
Namespace Prefix:	fosl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the consolidated leverage ratio used to calculate the variable rate of the debt instrument.

No definition available.

Name:	fosl_DebtInstrumentConsolidatedLeverageRatioUsedToCalculateVariableRateOfDebt
Namespace Prefix:	fosl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the consolidated interest coverage ratio required as per the debt agreement.

No definition available.

Name:	fosl_DebtInstrumentCovenantConsolidatedInterestCoverageRatio
Namespace Prefix:	fosl_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

Represents the consolidated leverage ratio required per the debt agreement.

No definition available.

Name:	fosl_DebtInstrumentCovenantConsolidatedLeverageRatio
Namespace Prefix:	fosl_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

Represents the maximum acquisitions allowed after year one per the terms of the debt covenants.

No definition available.

Name:	fosl_DebtInstrumentCovenantMaximumAcquisitionsThereafter
Namespace Prefix:	fosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the maximum acquisitions allowed in year one per the terms of the debt covenants.

No definition available.

Name:	fosl_DebtInstrumentCovenantMaximumAcquisitionsYearOne
Namespace Prefix:	fosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the maximum acquisitions allowed in year three as per the terms of the debt covenants.

No definition available.

Name:	fosl_DebtInstrumentCovenantMaximumAcquisitionsYearThree
Namespace Prefix:	fosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the maximum acquisitions allowed in year two as per the terms of the debt covenants.

No definition available.

Name:	fosl_DebtInstrumentCovenantMaximumAcquisitionsYearTwo
Namespace Prefix:	fosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of penalties or other early termination fees incurred on early payment of debt.

No definition available.

Name:	fosl_DebtInstrumentEarlyTerminationFees
Namespace Prefix:	fosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the incremental principal payments in excess of the minimum principal amount.

No definition available.

Name:	fosl_DebtInstrumentIncrementsInExcessOfMinimumPrincipalAmount
Namespace Prefix:	fosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents the amount used to calculate the quotient which is used in the calculation of the LIBOR rate. This amount is subtracted from the Eurodollar reserve percentage.

No definition available.

Name:	fosl_DebtInstrumentLIBORRateAmountUsedToCalculateQuotient
Namespace Prefix:	fosl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the term of the debt instrument.

No definition available.

Name:	fosl_DebtInstrumentTerm
Namespace Prefix:	fosl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represents the variable interest rate at the end of the reporting period.

No definition available.

Name:	fosl_DebtInstrumentVariableRateBaseInterestRateAtEndOfPeriod
Namespace Prefix:	fosl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage of subsidiary non-voting capital stock used to secure line of credit facility.

No definition available.

Name:	fosl_LineOfCreditFacilityAgreementPercentageOfTotalOutstandingNonVotingCapitalStock
Namespace Prefix:	fosl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of total outstanding voting capital stock used to secure line of credit facility.

No definition available.

Name:	fosl_LineOfCreditFacilityAgreementPercentageOfTotalOutstandingVotingCapitalStock
Namespace Prefix:	fosl_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Represents the final repayment of the credit facility included in total repayments for the period.

No definition available.

Name:	fosl_LineOfCreditFacilityDecreaseRepaymentsFinalPayment
Namespace Prefix:	fosl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

No definition available.

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

- Details

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

Amount of the required periodic payments applied to principal.

Name:	us-gaap_DebtInstrumentPeriodicPaymentPrincipal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).

No definition available.

Name:	us-gaap_DebtIssuanceCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Aggregate amount of interest paid or due on all long-term debt.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 8

-Article 9

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

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 8

-Chapter V

-Subsection I

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.8)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Name:	us-gaap_InterestExpenseLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount borrowed under the credit facility as of the balance sheet date.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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

Decrease for amounts repaid on the credit facility for the period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

-Article 4

Name:	us-gaap_LineOfCreditFacilityDecreaseRepayments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Increase for additional borrowings on the credit facility during the period.

Name:	us-gaap_LineOfCreditFacilityIncreaseAdditionalBorrowings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

No definition available.

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.(a),16(a)(1))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Subparagraph a(1)

-Article 7

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Subparagraph 2, 3

-Article 9