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Accounts Receivable and Contract Assets - Accounts Receivable and Related Allowance for Doubtful Accounts (Detail) ¥ in Thousands, $ in Thousands | Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CNY (¥)
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Receivables [Abstract] |  |  |
Accounts receivable (adjusted, Note 2(ah)) | ¥ 1,028,004 |  | ¥ 862,586
Allowance for doubtful accounts (adjusted, Note 2(ah)) | (145,699) |  | (50,544)
Accounts receivable, net | ¥ 882,305 | $ 126,735 | ¥ 812,042

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- Definition Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
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