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INCOME TAXES - Provision (Details) - USD ($) $ in Thousands | 12 Months Ended
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Feb. 28, 2022 | Feb. 28, 2021 | Feb. 29, 2020
Reconciliation of the PRC statutory tax rate to the effective tax rate |  |  |
Loss before provision for income tax | $ (778,130) | $ (224,623) | $ (50,653)
PRC statutory income tax rate | 25.00% | 25.00% | 25.00%
Income tax at statutory income tax rate | $ (194,533) | $ (56,156) | $ (12,663)
Effect of non-deductible expenses and loss and super deduction expenses | 108,961 | 2,466 | (18,117)
Effect of income tax exemptions and preferential tax rates | (68,090) | (98,368) | (36,750)
Effect of income tax rate difference in other jurisdictions | 97,306 | 60,806 | 97,058
Change in valuation allowance | 453,348 | 21,355 | 39,800
Income tax expense / (benefit) | $ 396,992 | $ (69,897) | $ 69,328

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- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 + Details
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