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Pension Plan - Additional Information (Detail) - USD ($) | 12 Months Ended
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Feb. 29, 2020 | Feb. 28, 2019 | Feb. 28, 2018
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employees covered under noncontributory Pension Plan | 16.00% |  |
Compensation period preceding retirement and termination | 5 years |  |
Expected rate of return | 7.00% | 7.50% | 7.50%
Target asset allocation, historical period | 10 years |  |
Target asset allocation, expected returns | 5 years |  |
Estimated net actuarial loss, amortized from AOCI to net periodic benefit cost | $ 3,400,000 |  |
Company contributions | 3,000,000 | $ 3,000,000 |
Matching contributions | $ 2,100,000 | 1,700,000 | $ 1,200,000
United States employees contribution | 100.00% |  |
Profit sharing contributions | $ 194,000 | $ 206,000 | $ 203,000
Minimum [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected contributions | 1,500,000 |  |
Maximum [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected contributions | $ 3,000,000 |  |

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