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Income Taxes - Reconcilliation of Effective Income Tax Rate (Details) | 12 Months Ended
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Feb. 28, 2023 | Feb. 28, 2022 | Feb. 28, 2021
Income Tax Disclosure [Abstract] |  |  |
Statutory federal income tax rate | 21.00% | 21.00% | 21.00%
Permanent differences | 0.60% | (0.20%) | (12.50%)
State income taxes, net of federal income tax benefit | 4.40% | 3.00% | 7.30%
Stock compensation | 0.10% | 0.10% | 1.50%
Tax credits | (0.00%) | (0.30%) | (1.80%)
Foreign tax rate differential | 0.40% | 0.40% | 0.00%
Uncertain tax positions | (1.50%) | (1.70%) | 1.10%
Audit settlement | 0.00% | 0.60% | 2.50%
Management fee | 0.032 | 0.062 | 0.100
Outside basis - AIS JV | (0.037) | 0 | 0
Other | 0.70% | 2.80% | 0.20%
Effective income tax rate | 25.20% | 31.90% | 29.30%

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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