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INCOME TAXES (Schedule of Income Tax Rate Reconciliation) (Details) | 12 Months Ended
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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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