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Reconciliation of Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs Level Three (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2016 CNY (¥)
Business Acquisition Contingent Consideration |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Beginning Balance |  | ¥ 65,797 | ¥ 372,256
Changes in the fair value |  | 937 | (93,307)
Transfers in and/or out of Level 3 |  | 0 | 0
Ending Balance | $ 5,646 | 36,734 | 65,797
Business Acquisition Contingent Consideration | Payment of cash consideration |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Bonuses settled in cash during 2016/2017 |  | (30,000) | (2,617)
Business Acquisition Contingent Consideration | Reclassification to equity upon resolution of contingencies |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Reclassification to equity upon resolution of contingencies |  |  | (210,535)
Share-settled bonuses |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Beginning Balance |  | 37,526 | 41,352
Increase in liability |  |  | 37,678
Changes in the fair value |  | (810) | (5,319)
Reclassification to equity |  | (22,752) | (15,890)
Bonuses settled in cash during 2016/2017 |  |  | (20,295)
Reversal of share-settled bonuses |  | (13,964) |
Transfers in and/or out of Level 3 |  | 0 | 0
Ending Balance |  |  | 37,526
Liability Classified RSU |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |
Beginning Balance |  | 34,612 |
Increase in liability |  | 61,903 |
Reclassification to equity |  | (84,650) |
Transfers in and/or out of Level 3 |  | 0 |
Ending Balance | $ 1,824 | ¥ 11,865 | ¥ 34,612

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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 No definition available. + Details
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- Definition Amount of gain (loss) recognized on the income statement for financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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