XML 60 R50.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Financial Instruments and Risk Management (Additional Information) (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 01, 2017 | Jun. 18, 2016 | Dec. 31, 2016
Foreign exchange contracts [Member] |  |  |
Financial Instruments And Derivatives [Line Items] |  |  |
Maximum remaining maturity of foreign currency derivatives | 363 days | 363 days | 356 days
Interest rate swaps [Member] |  |  |
Financial Instruments And Derivatives [Line Items] |  |  |
Number of interest rate swap agreements | 2 |  |
Cross currency swap [Member] |  |  |
Financial Instruments And Derivatives [Line Items] |  |  |
Derivative, Fixed Interest Rate | 2.75% |  |
Derivative, Forward Interest Rate | 5.00% |  |
October Sixth Two Thousand Seventeen [Member] | Interest rate swaps [Member] |  |  |
Financial Instruments And Derivatives [Line Items] |  |  |
Financial instrument expiration date | Oct. 06, 2017 |  |
July Thirteenth Two Thousand Twenty [Member] | Interest rate swaps [Member] |  |  |
Financial Instruments And Derivatives [Line Items] |  |  |
Financial instrument expiration date | Jul. 13, 2020 |  |
September First Two Thousand Twenty One [Member] | Cross currency swap [Member] |  |  |
Financial Instruments And Derivatives [Line Items] |  |  |
Financial instrument expiration date | Sep. 01, 2021 |  |

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Stated rate on an interest rate forward or futures contract. + References No definition available. + Details
Name: | us-gaap_DerivativeForwardInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_DerivativeMaturityDates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_MaximumRemainingMaturityOfForeignCurrencyDerivatives1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of interest rate derivative instruments held by the entity at the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959 + Details
Name: | us-gaap_NumberOfInterestRateDerivativesHeld
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Financial Instruments And Derivatives [Line Items] + References No definition available. + Details
Name: | www_FinancialInstrumentsAndDerivativesLineItems
Namespace Prefix: | www_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CrossCurrencyInterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | www_InstrumentMaturityAxis=www_OctoberSixthTwoThousandSeventeenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | www_InstrumentMaturityAxis=www_JulyThirteenthTwoThousandTwentyMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | www_InstrumentMaturityAxis=www_SeptemberFirstTwoThousandTwentyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |