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Lease - Sale and leaseback (Details) ¥ in Thousands	12 Months Ended
	Dec. 31, 2019 CNY (¥)
Lease
Income from sale and leaseback agreement	¥ 37,961

X

- Definition

Amount of lease income from sale and lease back agreement.

+ References

No definition available.

+ Details

Name:	noah_SaleAndLeaseBackLeaseIncome
Namespace Prefix:	noah_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_LeasesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration