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Share-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2022
Share-Based Compensation |
Schedule of Group's share-based compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended December 31,
​ | ​ | (Amounts in Thousands)
​ |  | 2020 |  | 2021 |  | 2022 |  | 2022
​ | ​ | RMB | ​ | RMB | ​ | RMB | ​ | US$
Share options | ​ | 21,837 | ​ | 18,081 | ​ | 24,195 | ​ | 3,508
Non-vested restricted shares | ​ | 37,952 | ​ | 32,956 | ​ | 18,105 | ​ | 2,625
Total share-based compensation | ​ | 59,789 | ​ | 51,037 | ​ | 42,300 | ​ | 6,133
​
Schedule of Black-Scholes pricing model and the following assumptions to estimate the fair value of the options granted | ​
​ | ​ | ​ | ​
​ |  | 2022 |
Average risk-free rate of return |  | 3.0~4.1 | %
Weighted average expected option life |  | 7.85 | years
Estimated volatility |  | 67.1~67.5 | %
Average dividend yield |  | Nil |
​
Schedule of summarizes option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ |  | Weighted |  | ​
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | Aggregate
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Intrinsic
​ | ​ | Number of | ​ | Exercise | ​ | Contractual | ​ | Value of
​ | ​ | options | ​ | Price | ​ | Term | ​ | Options
​ |  | ​ |  | RMB |  | Years |  | RMB
Outstanding as of January 1, 2022 | ​ | 433,968 | ​ | 474.97 | ​ | 7.9 | ​ | 18,389
Granted | ​ | 558,935 | ​ | 198.71 | ​ | ​ | ​ | ​
Exercised | ​ | (6,009) | ​ | 257.59 | ​ | ​ | ​ | ​
Forfeited or expired | ​ | (61,421) | ​ | 460.62 | ​ | ​ | ​ | ​
Outstanding as of December 31, 2022 | ​ | 925,473 | ​ | 310.49 | ​ | 8.4 | ​ | 8,379
Exercisable as of December 31, 2022 | ​ | 242,581 | ​ | 401.05 | ​ | 6.0 | ​ | —
​
Schedule of summary of non-vested restricted share activity | ​
​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted-
​ |  | Number of |  | average
​ |  | non-vested |  | grant-
​ |  | restricted |  | date fair
Non-vested restricted shares | ​ | shares |  | value
​ | ​ | ​ |  | RMB
Non-vested as of January 1, 2022 |  | 150,834 | ​ | 324.12
Granted |  | 4,000 | ​ | 224.85
Vested |  | (32,312) | ​ | 493.62
Forfeited |  | (32,667) | ​ | 427.29
Non-vested as of December 31, 2022 |  | 89,855 | ​ | 300.59
​

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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