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CONSOLIDATED BALANCE SHEETS (Parenthetical) ¥ in Thousands, $ in Thousands | Dec. 31, 2021 CNY (¥) shares | Dec. 31, 2020 CNY (¥) shares
--- | --- | ---
Allowance for credit losses, accounts receivable | ¥ | ¥ 7,225 | ¥ 8,603
Allowance for credit losses, Prepaid expenses and other current assets | ¥ | 4,791 | 2,972
Allowance for credit losses, other non current assets | ¥ | 488 | 1,514
Variable Interest Entity, Consolidated, Liabilities, Current, No Recourse | ¥ 865,760 | ¥ 1,225,472
Common Stock, Shares Authorized | 20,000,000,000 | 20,000,000,000
Treasury Stock, Shares | 12,255,830 | 25,525,810
Variable Interest Entity, Primary Beneficiary [Member] |  |
Variable Interest Entity, Consolidated, Liabilities, Current, No Recourse | ¥ | ¥ 326,899 | ¥ 635,467
Common Class A [Member] |  |
Common Stock, Shares, Issued | 1,208,831,222 | 1,208,831,222
Common Stock, Shares, Outstanding | 1,196,575,392 | 1,183,305,412
Common Class B [Member] |  |
Common Stock, Shares, Issued | 949,960,000 | 949,960,000
Common Stock, Shares, Outstanding | 949,960,000 | 949,960,000

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