The maturity term of available-for-sale investments.

No definition available.

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- Definition

The maturity term of held-to-maturity debt investments.

+ References

No definition available.

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- Definition

The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

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- Definition

This item represents the gain (loss) realized during the period from the sale of investments accounted for under the cost method of accounting and any losses recognized thereon for impairments of other than a temporary nature.

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-Publisher FASB
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- Definition

The amount of the gain (loss) recognized by the parent and included in its attributable portion of net income for the period due to deconsolidation of a subsidiary or derecognition of a group of assets. The gain (loss) recognized and included in the net income attributable to the parent for the period is generally computed as the difference between: (a) the aggregate of: (1) the fair value of any consideration received; (2) the fair value of any retained noncontrolling investment in the former subsidiary at the date the subsidiary was deconsolidated; and (3) the carrying amount of any noncontrolling interest in the former subsidiary (including any accumulated other comprehensive income attributable to the noncontrolling interest) at the date the subsidiary was deconsolidated and (b) the carrying amount of the former subsidiary's assets and liabilities.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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-Publisher FASB
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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries or equity method investee.

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-Publisher FASB
-Name Accounting Standards Codification
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The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

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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.

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Investments - Long-term Investments - Additional information (Detail) ¥ in Thousands, $ in Thousands		12 Months Ended
	Oct. 26, 2015 shares	Dec. 31, 2016 USD ($)	Dec. 31, 2016 CNY (¥)	Dec. 31, 2015 CNY (¥)	Dec. 31, 2014 CNY (¥)	Dec. 31, 2016 CNY (¥)
Schedule of Investments [Line Items]
Carrying amount of cost method investments		$ 1,860,000		¥ 7,300,000		¥ 12,940,000
Aggregate deconsolidated gain		204,320	¥ 1,420,000
Carrying amount of equity method investments		4,650,000		28,540,000		¥ 32,260,000
Impairment charges on long-term investments		35,330	245,330	116,980	¥ 93,420
Uber
Schedule of Investments [Line Items]
Gain on investment		$ 287,020	¥ 1,990,000
Qunar \| Class A Ordinary Shares
Schedule of Investments [Line Items]
Number of shares exchanged	178,702,519
Qunar \| Class B Ordinary Shares
Schedule of Investments [Line Items]
Number of shares exchanged	11,450,000
Ctrip.com International, Ltd
Schedule of Investments [Line Items]
Number of shares newly-issued in exchange	11,488,381
Equity method investment, percentage of ownership		20.49%				20.49%
Ctrip.com International, Ltd \| Total Other Income, Net
Schedule of Investments [Line Items]
Share transactions on equity method investments, gains recognized during period \| ¥				¥ 24,420,000
Short-term Investments \| Maximum
Schedule of Investments [Line Items]
Held-to-maturity debt investments maturity		1 year	1 year
Available-for-sale investments maturity		1 year	1 year
Other Long-term Investments \| Maximum
Schedule of Investments [Line Items]
Held-to-maturity debt investments maturity		2 years	2 years
Available-for-sale investments maturity		2 years	2 years
Other Long-term Investments \| Minimum
Schedule of Investments [Line Items]
Held-to-maturity debt investments maturity		1 year	1 year
Available-for-sale investments maturity		1 year	1 year