Stock-Based Compensation Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 25.4	$ 22.8	$ 18.7
Income tax benefits for grants	$ 8.6	7.9	6.1
Maximum expiry period of options granted from the grant date	10 years
Vesting period of options granted	3 years
Lapsing period of restrictions related to restricted stock issued	three- to four-year
Total pretax intrinsic value of options exercised	$ 12.5	$ 4.0	14.5
Closing stock price	$ 31.88
Stock options exercisable and in-the-money, number	4,563,527	3,546,676
Stock options exercisable and in-the-money, weighted average exercise price	$ 20.26	$ 16.81
Available For Issuance [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	2,673,893
Option Or Stock Appreciation Right [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	1.0
Non-Stock Option Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive units	2.6
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants	$ 1.8	$ 4.8	$ 4.6
Weighted-average period of recognition	1 year	1 year 4 months 24 days	1 year 2 months 12 days
Restricted Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants	$ 18.3	$ 16.6	$ 17.2
Weighted-average period of recognition	1 year 9 months 18 days	2 years 1 month 6 days	1 year 10 months 24 days
Total fair value of shares vested	$ 10.6	$ 7.7	$ 11.1
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to nonvested shares and stock option grants	$ 16.9	$ 8.2	$ 4.5
Weighted-average period of recognition	1 year 10 months 24 days	1 year 9 months 18 days	2 years
Total fair value of shares vested	$ 4.0	$ 5.2	$ 8.7

Unrecognized cost of unvested share-based compensation awards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

+ Details

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

- Definition

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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

- Definition

Closing stock price.

+ References

No definition available.

+ Details

Name:	www_ClosingStockPrice
Namespace Prefix:	www_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Lapsing period of restrictions related to restricted stock issued.

+ References

No definition available.

+ Details

Name:	www_LapsingPeriodOfRestrictionsRelatedToRestrictedStockIssued
Namespace Prefix:	www_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum expiry period of options granted from the grant date.

+ References

No definition available.

+ Details

Name:	www_MaximumExpiryPeriodOfOptionsGrantedFromGrantDate
Namespace Prefix:	www_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Share based compensation arrangement by share based payment award in-the-money options exercisable number.

+ References

No definition available.

+ Details

Name:	www_ShareBasedCompensationArrangementByShareBasedPaymentAwardInMoneyOptionsExercisableNumber
Namespace Prefix:	www_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Share based compensation arrangement by share based payment award in-the-money options exercisable weighted average exercise price.

+ References

No definition available.

+ Details

Name:	www_ShareBasedCompensationArrangementByShareBasedPaymentAwardInMoneyOptionsExercisableWeightedAverageExercisePrice
Namespace Prefix:	www_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Stock incentive units.

+ References

No definition available.

+ Details

Name:	www_StockIncentiveUnits
Namespace Prefix:	www_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	www_StockIncentiveUnitsAxis=www_AvailableForIssuanceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	www_StockIncentiveUnitsAxis=www_OptionOrStockAppreciationRightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	www_StockIncentiveUnitsAxis=www_NonStockOptionAwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=www_RestrictedAwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=www_PerformanceAwardsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: