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Summary of Significant Accounting Policies - Schedule of Customer Operating Revenue (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2022 CNY (¥)
Significant Risk and Uncertainties |  |  |  |
Operating revenue | ¥ 2,771,821 | $ 379,738 | ¥ 2,630,707 | ¥ 2,801,768
Customer A | Revenue Benchmark | Concentration of Credit Risk |  |  |  |
Significant Risk and Uncertainties |  |  |  |
Operating revenue |  |  |  | ¥ 320,660
Percentage of concentration of credit risk |  |  |  | 11.44%
Customer B | Revenue Benchmark | Concentration of Credit Risk |  |  |  |
Significant Risk and Uncertainties |  |  |  |
Operating revenue |  |  |  | ¥ 357,202
Percentage of concentration of credit risk |  |  |  | 12.75%

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