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Summary of Significant Accounting Policies - Schedule of Customer Accounts Receivable and Contract Assets (Details) - Accounts receivable and contract assets - Concentration of Credit Risk - CNY (¥) ¥ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Significant Risk and Uncertainties |  |
Accounts receivable and contract Assets | ¥ 413,042 | ¥ 520,095
Concentration Risk, Percentage | 29.49% | 42.30%
Customer A |  |
Significant Risk and Uncertainties |  |
Accounts receivable and contract Assets | ¥ 93,947 | ¥ 78,775
Concentration Risk, Percentage | 6.71% | 6.41%
Customer B |  |
Significant Risk and Uncertainties |  |
Accounts receivable and contract Assets | ¥ 21,952 | ¥ 151,033
Concentration Risk, Percentage | 1.57% | 12.28%
Customer C |  |
Significant Risk and Uncertainties |  |
Accounts receivable and contract Assets | ¥ 128,749 | ¥ 232,259
Concentration Risk, Percentage | 9.19% | 18.89%
Customer D |  |
Significant Risk and Uncertainties |  |
Accounts receivable and contract Assets | ¥ 168,394 | ¥ 58,028
Concentration Risk, Percentage | 12.02% | 4.72%

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 954 -SubTopic 310 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481027/954-310-50-2 + Details
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