XML 78 R63.htm IDEA: XBRL DOCUMENT
v3.25.1

Restructuring - Schedule of Restructuring-related Liabilities (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 29, 2025 | Dec. 28, 2024 | Dec. 30, 2023 | Dec. 31, 2022
Employee Termination Benefit Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Payments | $ (4,545) |  |  |
2024 Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 1,471 | $ 17,043 |  |
2024 Plan | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance | 7,312 |  |  |
Restructuring charges | 1,320 | 16,829 |  |
Payments | (2,525) | (9,731) |  |
Change in estimate | 151 | 214 |  |
Ending Balance | 6,258 | 7,312 |  |
2024 Plan | Lease Termination Costs | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance | 168 |  |  |
Restructuring charges |  | 168 |  |
Ending Balance | 168 | 168 |  |
2024 Plan | Employee Termination Benefit Costs | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance | 7,144 |  |  |
Restructuring charges | 985 | 15,520 |  |
Payments | (2,190) | (8,590) |  |
Change in estimate | 151 | 214 |  |
Ending Balance | 6,090 | 7,144 |  |
2024 Plan | Other Cash Restructuring Charges | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 335 | 1,141 |  |
Payments | (335) | (1,141) |  |
2023 Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | (499) | 5,122 | $ 53,743 | $ 13,608
2023 Plan | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance | 9,732 | 26,758 | 13,608 |
Restructuring charges |  | 5,491 | 47,106 |
Payments | (2,355) | (22,123) | (33,956) |
Change in estimate | (499) | (394) |  |
Ending Balance | 6,878 | 9,732 | 26,758 | 13,608
2023 Plan | Other Cash Restructuring Charges | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance |  | 344 |  |
Restructuring charges |  | 581 | 1,577 |
Payments |  | (925) | (1,233) |
Ending Balance |  |  | 344 |
2023 Plan | Real Estate Restructuring | Lease Termination Costs | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance |  | 156 |  |
Restructuring charges |  |  | 12,924 |
Payments |  | (21) | (12,768) |
Change in estimate |  | (135) |  |
Ending Balance |  |  | 156 |
2023 Plan | Real Estate Restructuring | Employee Termination Benefit Costs | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance | 3,266 | 2,663 | 1,798 |
Restructuring charges |  | 2,363 | 5,678 |
Payments | (281) | (1,835) | (4,813) |
Change in estimate | (153) | 75 |  |
Ending Balance | 2,832 | 3,266 | 2,663 | 1,798
2023 Plan | Organizational Restructuring | Employee Termination Benefit Costs | Cash Restructuring-Related Liabilities Roll-Forward |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Beginning Balance | 6,466 | 23,595 | 11,810 |
Restructuring charges |  | 2,547 | 26,927 |
Payments | (2,074) | (19,342) | (15,142) |
Change in estimate | (346) | (334) |  |
Ending Balance | $ 4,046 | $ 6,466 | $ 23,595 | $ 11,810

X
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-17 + Details
Name: | us-gaap_PaymentsForRestructuring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482047/420-10-45-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-1 + Details
Name: | us-gaap_RestructuringCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
Name: | us-gaap_RestructuringCostAndReserveLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
Name: | us-gaap_RestructuringReserve
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) in the accrual for restructuring costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 + Details
Name: | us-gaap_RestructuringReservePeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=ww_EmployeeTerminationBenefitCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringPlanAxis=ww_FiscalYearTwoThousandAndTwentyFourPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=ww_CashRestructuringRelatedLiabilitiesRollForwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=ww_LeaseTerminationCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringCostAndReserveAxis=ww_OtherCashRestructuringChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RestructuringPlanAxis=ww_FiscalYearTwoThousandAndTwentyThreePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=ww_RealEstateRestructuringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=ww_OrganizationalRestructuringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |