Business Combination - Additional Information (Details) - Paipai Marketplace	Jun. 03, 2019 CNY (¥) shares
Business Acquisition [Line Items]
Net purchase consideration \| ¥	¥ 3,243,036
Effective date of acquisition	Jun. 03, 2019
Acquisition agreement term	3 years
Series E Convertible Redeemable Preferred Shares
Business Acquisition [Line Items]
Shares issued for purchase consideration \| shares	26,379,291

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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