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ORDINARY SHARES AND STATUTORY RESERVE (Statutory Reserve) (Details) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Appropriations	¥ 40,491	¥ 36,524	¥ 15,823
Statutory reserve	¥ 115,243	¥ 74,752	¥ 38,228
Statutory Reserves, Percentage of Appropriation From Net Profit	10.00%
Statutory Reserves, Balance As Percentage to Capital	50.00%
Statutory Reserves for Private Schools Requiring Reasonable Returns, Percentage of Appropriation From Net Profit	25.00%
Statutory Reserves for Private Schools Not Requiring Reasonable Returns, Percentage of Expected Annual Increase in Net Assets	25.00%

X

- Definition

The amount of statutory capital and surplus appropriated during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	tedu_
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Balance Type:	credit
Period Type:	duration

X

- Definition

Under PRC rules and regulations, Tarena International's PRC subsidiaries, consolidated VIEs, and the subsidiaries of the VIEs (the "PRC Entities") are required to appropriate 10% of their net profit, as determined in accordance with PRC accounting rules and regulations, to a statutory surplus reserve until the reserve balance reaches 50% of their registered capital.

+ References

No definition available.

+ Details

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Namespace Prefix:	tedu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the appropriation percentage of increase in net assets for private schools not requiring reasonable returns.

+ References

No definition available.

+ Details

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Namespace Prefix:	tedu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the appropriation percentage from net profit for private schools that looking for reasonable returns.

+ References

No definition available.

+ Details

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Namespace Prefix:	tedu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the appropriation percentage from net profit, that has to be contributed till attain the statutory reserve fixed by PRC.

+ References

No definition available.

+ Details

Name:	tedu_StatutoryReservesPercentageOfAppropriationFromNetProfit
Namespace Prefix:	tedu_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(23)(c))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 505
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529

+ Details

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