Percentage of voting equity interests acquired at the acquisition date in the business combination.

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- Definition

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Amount of business consideration which is payable to the acquire at event of business combination.

+ References

No definition available.

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Subsequent events - Additional Information (Detail) ¥ in Millions	1 Months Ended	3 Months Ended
	Jan. 31, 2018 USD ($)	Mar. 31, 2018 shares	Nov. 30, 2017 USD ($)	Nov. 30, 2017 CNY (¥)
Henan Tourism Information Co., Ltd., [Member]
Subsequent Event [Line Items]
Business Combination, Consideration Payable			$ 1,500,000	¥ 9.6
Business Acquisition, Percentage of Voting Interests Acquired			80.00%	80.00%
Subsequent Event [Member] \| Web Game Business [Member]
Subsequent Event [Line Items]
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax \| $	$ 1,400,000
Subsequent Event [Member] \| Treasury Stock [Member]
Subsequent Event [Line Items]
Treasury Stock, Shares, Acquired		0
Subsequent Event [Member] \| Restricted shares [Member]
Subsequent Event [Line Items]
Restricted stock granted		2,815,520