Percentage of voting equity interests acquired during the period in the business combination.

No definition available.

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- Definition

Amount of total unpaid consideration under business acquisition.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Represents the amount of cash outflow for payment of deferred and contingent consideration for business acquisitions.

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
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+ Details

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e7008-128479

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

This element represents the amount of any change recognized during the period in the high-end of the estimated range of outcomes (undiscounted) of a liability assumed in a business combination arising from an item of contingent consideration.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e7008-128479

+ Details

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Period Type:	duration

- Definition

This element represents the amount of any change recognized during the period in the low-end of the estimated range of outcomes (undiscounted) of a liability assumed in a business combination arising from an item of contingent consideration.

+ References

+ Details

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
-Paragraph 1
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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+ Details

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Period Type:	duration

- Details

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- Details

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- Details

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Business acquisition - Additional Information (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2018 CNY (¥)
Business acquisition [Line Items]
Contingent consideration	¥ 4,100
Contingent consideration paid for business acquisitions	14,019	$ 2,149	¥ 13,921	¥ 6,800
Adjustment of the fair value of the contingent consideration	(5,451)	$ (835)	344	(5,242)
2019 Travel Agencies [Member]
Business acquisition [Line Items]
Total purchase price			59,981
Cash consideration			52,640
Fair value of contingent cash consideration to be made based on the achievement of certain revenue and profit target			7,341
Contingent consideration			2,265
Contingent consideration paid for business acquisitions			1,776
Adjustment of the fair value of the contingent consideration			3,715
Total unpaid consideration			4,115
2018 Travel Agencies [Member]
Business acquisition [Line Items]
Total purchase price				20,234
Cash consideration				9,852
Fair value of contingent cash consideration to be made based on the achievement of certain revenue and profit target				¥ 10,382
Contingent consideration			3,800
Downward adjustment of contingent consideration	1,736		¥ 2,311
Total unpaid consideration	¥ 2,535
Offline Travel Agencies [Member]
Business acquisition [Line Items]
Equity interests acquired			51.00%
Online Travel Agencies [Member]
Business acquisition [Line Items]
Equity interests acquired			63.51%	80.00%