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Components of Accrued Expenses and Other Payables (Detail) ¥ in Thousands, $ in Thousands	Dec. 31, 2017 USD ($)	Dec. 31, 2017 CNY (¥)	Dec. 31, 2016 CNY (¥)
Payables and Accruals [Abstract]
Payroll and welfare payables	$ 30,305	¥ 197,171	¥ 248,895
Value-added tax and other taxes payable	2,605	16,951	21,011
Payables for office supplies and utilities	4,532	29,488	31,006
Payables for the purchase of property and equipment	28,525	185,594	266,597
Payables for purchase of the intangible assets	570	3,706	2,352
Accrued service fees	8,006	52,090	74,812
Interest payables	8,816	57,359	6,456
Share-settled bonuses and liability classified RSU	1,824	11,865	72,138
Payables for acquisitions	7,340	47,755	25,268
Others	8,476	55,154	39,381
Accrued expenses and other payables	$ 100,999	¥ 657,133	¥ 787,916

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are due within one year or operating cycle, if longer, from the balance sheet date.

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Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Payable for purchase of network use right.

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Payables for the purchase of property and equipment.

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Payables for office supplies and utilities.

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