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INCOME TAXES (Schedule of Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective income tax rate reconciliation [Line Items]
PRC statutory income tax rate	25.00%	25.00%	25.00%
Cayman and HK entities not subject to income taxes	1.20%	2.50%	(3.00%)
Research and development bonus deduction	(2.70%)	(3.30%)	(2.70%)
Non-deductible selling, general and administrative expenses
Share based compensation	6.50%	4.50%	3.80%
Other non-deductible selling, general and administrative expenses	0.10%	0.60%	0.50%
Change in valuation allowance	2.50%	3.10%	6.40%
Tax holiday	(25.20%)	(31.10%)	(20.00%)
Others	0.00%	0.10%	0.00%
Actual income tax expense	7.20%	2.20%	8.90%
ANTE [Member]
Non-deductible selling, general and administrative expenses
Preferential tax rates	(0.70%)	0.10%	(1.00%)
Tarena Hangzhou [Member]
Effective income tax rate reconciliation [Line Items]
PRC statutory income tax rate	12.50%
Non-deductible selling, general and administrative expenses
Preferential tax rates	0.50%	0.70%	(0.10%)

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to differences from preferential tax rates.

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