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COMMITMENTS AND VARIABLE INTEREST ENTITIES - Employee Benefit Plans (Details) | 9 Months Ended
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Sep. 29, 2023 USD ($) Y | Sep. 30, 2022 USD ($)
Administrative services agreement |  |
Employee Benefit Plans |  |
Percentage of costs reimbursed to WES by Genesys | 10.00% |
Qualified Cash or Deferred Arrangement |  |
Employee Benefit Plans |  |
Defined Contribution Plan, Tax Status | us-gaap:QualifiedPlanMember |
Maximum employee contribution as a percentage of compensation under 401(k) Plan (as a percent) | 50.00% |
Defined Contribution Plan |  |
Employee Benefit Plans |  |
Service period | 3 months |
Attained age | Y | 21 |
Defined contribution plan, employer matching contribution, percent of match (as a percent) | 50.00% |
Defined contribution plan, employer matching contribution, percent of employees' gross pay (as a percent) | 6.00% |
Maximum employer contribution per employee | $ 3,000 |
Employer matching contributions | $ 1,900,000 | $ 2,000,000.0

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