XML 69 R59.htm IDEA: XBRL DOCUMENT
v3.25.3

Leases - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2025 | Sep. 28, 2024 | Jun. 24, 2025 | Sep. 30, 2025 | Sep. 28, 2024 | Dec. 28, 2024
Lessee Lease Description [Line Items] |  |  |  |  |  |  |
Sublease income | $ 415 | $ 390 | $ 914 | $ 2,205 |  | $ 2,741 |
Operating lease right-of-use assets | $ 3,229 | $ 3,229 |  | 3,491 | $ 3,229 |  | $ 42,047
Derecognized operating lease right-of-use assets |  |  |  | 32,660 |  |  |
Derecognized leasehold improvements |  |  |  | 10,371 |  |  |
Net reduction in operating lease liabilities |  |  |  | 34,796 |  |  |
Decrease in long-term operating lease liabilities |  |  |  | 38,545 |  |  |
Increase in portion of operating lease liabilities due within one year |  |  |  | 3,749 |  |  |
Adjusted operating lease liabilities |  |  |  | $ 8,100 |  |  |
Lease weighted average remaining lease term |  |  |  |  | 2 years 10 months 13 days |  |
Minimum |  |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |  |
Leases, remaining lease term |  |  |  |  | 1 year |  |
Maximum |  |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |  |
Leases, remaining lease term |  |  |  |  | 4 years |  |

X
- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-1 + Details
Name: | us-gaap_OperatingLeaseRightOfUseAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of sublease income excluding finance and operating lease expense. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
Name: | us-gaap_SubleaseIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Adjusted operating lease liabilities. + References No definition available. + Details
Name: | ww_AdjustedOperatingLeaseLiabilities
Namespace Prefix: | ww_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Decrease in long-term operating lease liabilities. + References No definition available. + Details
Name: | ww_DecreaseInLong-TermOperatingLeaseLiabilities
Namespace Prefix: | ww_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Derecognized leasehold improvements. + References No definition available. + Details
Name: | ww_DerecognizedLeaseholdImprovements
Namespace Prefix: | ww_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Derecognized operating lease right-of-use assets. + References No definition available. + Details
Name: | ww_DerecognizedOperatingLeaseRight-Of-UseAssets
Namespace Prefix: | ww_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Increase in portion of operating lease liabilities due within one year. + References No definition available. + Details
Name: | ww_IncreaseInPortionOfOperatingLeaseLiabilitiesDueWithinOneYear
Namespace Prefix: | ww_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Lease weighted average remaining lease term. + References No definition available. + Details
Name: | ww_LeaseWeightedAverageRemainingLeaseTerm
Namespace Prefix: | ww_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee remaining lease term. + References No definition available. + Details
Name: | ww_LesseeRemainingLeaseTerm
Namespace Prefix: | ww_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net reduction in operating lease liabilities. + References No definition available. + Details
Name: | ww_NetReductionInOperatingLeaseLiabilities
Namespace Prefix: | ww_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |