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INTANGIBLE ASSETS, NET | 12 Months Ended
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Feb. 28, 2022
INTANGIBLE ASSETS, NET |
INTANGIBLE ASSETS, NET | 7. INTANGIBLE ASSETS, NET Intangible assets, net, consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of | ​ | As of
​ | ​ | February 28, | ​ | February 28,
​ |  | 2021 |  | 2022
​ | ​ | ​ | ​ | ​ | ​ | ​
Trade name and domain names | ​ | $ | 41,707 | ​ | $ | 41,711
User base and customer relationships | ​ |  | 32,378 | ​ |  | 32,378
Licenses | ​ |  | 28,796 | ​ |  | 28,970
Technology | ​ |  | 14,308 | ​ |  | 14,308
Copyrights and teaching materials | ​ |  | 6,026 | ​ |  | 6,026
Partnership agreements and school cooperation agreements | ​ |  | 4,858 | ​ |  | 4,858
Others | ​ |  | 5,655 | ​ |  | 5,655
​ | ​ | ​ | ​ | ​ | ​ | ​
Total cost of intangible assets | ​ |  | 133,728 | ​ |  | 133,906
Less: accumulated amortization | ​ |  | (70,012) | ​ |  | (83,917)
Less: accumulated impairment loss | ​ |  | (358) | ​ |  | (51,810)
Add: foreign exchange difference | ​ |  | 2,683 | ​ |  | 3,517
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | $ | 66,041 | ​ | $ | 1,696
​ The Group recorded amortization expense of $15,677, $24,030 and $13,905 for the years ended February 29, 2020, February 28, 2021 and 2022, respectively. Estimated amortization expense of the existing intangible assets for the next five years is $1,265, $244, $46, $38 and $38, respectively. The impairment loss on acquired intangible assets was nil and $136 for the years ended February 29, 2020 and February 28, 2021. For the year ended February 28, 2022, $51,452 impairment loss was recorded on acquired intangible assets as a result of the changes in business operations in responding to the regulatory development.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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