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Cash Flow Information - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2025	Jun. 24, 2025
Cash and Cash Equivalents [Abstract]
Cash paid for Reorganization items, net	$ 29,850	$ 10,339

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Cash paid for Reorganization items, net.

+ References

No definition available.

+ Details

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Namespace Prefix:	ww_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration