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Shareholders' Equity (Detail) ¥ in Thousands, $ in Thousands	Dec. 31, 2016 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)
Cumulative Effect on Retained Earnings, Net of Tax [Abstract]
PRC statutory reserve funds	$ 63,574	¥ 441,391	¥ 417,911
Unreserved retained earnings	12,284,648	85,292,315	74,241,444
Total retained earnings	$ 12,348,222	¥ 85,733,706	¥ 74,659,355

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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-Publisher FASB
-Name Accounting Standards Codification
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A segregation of retained earnings which is unavailable for dividend distribution. Includes also retained earnings appropriated for loss contingencies.

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A segregation of retained earnings which is available for dividend distribution. Earnings not paid out as dividends but instead reinvested in the core business or used to pay off debt. Unappropriated profit is part of shareholder equity. Also called cumulative distributions or earned surplus or accumulated earnings or unappropriated profit.

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