Income Taxes - Current and Deferred Portions of Income Tax Expense (Detail) ¥ in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2017 CNY (¥)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)
PRC	¥ 242,820	$ 37,321	¥ (54,764)	¥ 154,095
Non-PRC	1,190,445	182,967	(14,132)	84,282
Income (Loss) before income taxes	1,433,265	220,288	(68,896)	238,377
Current income tax expenses	82,908	12,742	41,243	70,820
Deferred income tax benefits	(25,306)	(3,889)	(53,432)	(7,080)
Income tax expenses (benefits)	¥ 57,602	$ 8,853	¥ (12,189)	¥ 63,740

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

+ References

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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