Statutory reserves and restricted net assets (Details)	12 Months Ended
Dec. 31, 2019 USD ($)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2018 CNY (¥)
Statutory reserves and restricted net assets
Minimum percentage of after tax profit to be allocated to statutory reserve	10.00%
Required statutory reserve registered capital ratio to deforce compulsory net profit allocation to statutory reserve	50.00%
Amounts restricted that include paid in capital, additional paid-in capital and statutory reserve funds, as determined pursuant to PRC GAAP	$ 376,563,445	¥ 2,621,559,394	¥ 1,632,374,093

For entities incorporated in PRC, the ratio of the statutory reserve to the registered capital which triggers the elimination of the requirement to contribute to the statutory reserve.

No definition available.

Name:	xyf_RequiredStatutoryReserveRegisteredCapitalRatioToDeforceCompulsoryNetProfitAllocationToStatutoryReserve
Namespace Prefix:	xyf_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration