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Prepaid Expense and Other Assets - Additional information (Details) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Impairment provision for prepayment	¥ 1,000	¥ 372
Impairment provision	(40,000)	(39,372)	¥ (39,000)
Allowance for doubtful accounts and other receivables	14,979	12,635
General and Administrative Expense [Member]
Allowance for doubtful accounts on other receivables	¥ 923	¥ 12,635	¥ 0

X

- Definition

The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Allowance for doubtful accounts on other receivables.

+ References

No definition available.

+ Details

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

X

- Definition

Impairment provision on prepayment expenses and other current assets.

+ References

No definition available.

+ Details

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Namespace Prefix:	wdh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of additions of impairment provision on prepayment expenses and other current assets.

+ References

No definition available.

+ Details

Name:	wdh_ImpairmentProvisionOnPrepaymentExpensesAndOtherCurrentAssetsAdditions
Namespace Prefix:	wdh_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: