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GOODWILL (Tables) | 12 Months Ended
--- | ---
Feb. 28, 2022
GOODWILL |
Schedule of changes in the carrying amount of goodwill | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of | ​ | As of
​ | ​ | February 28, | ​ | February 28,
​ |  | 2021 |  | 2022
​ | ​ | ​ | ​ | ​ | ​ | ​
Beginning balance | ​ | $ | 409,435 | ​ | $ | 592,334
Addition (Note 3) | ​ |  | 169,893 | ​ |  | —
Accumulated impairment loss | ​ |  | (137,921) | ​ |  | (591,349)
Disposal and write-off | ​ | ​ | (2,652) | ​ | ​ | —
Exchange difference | ​ |  | 15,658 | ​ |  | (985)
​ | ​ | ​ | ​ | ​ | ​ | ​
Goodwill, net | ​ | $ | 454,413 | ​ | ​ | —

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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