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Pension Plan - Pension Plan's Fair Value Hierarchy for Assets Measured at Fair Value (Detail) - USD ($) $ in Thousands | Feb. 28, 2022 | Feb. 28, 2021 | Feb. 29, 2020
--- | --- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | $ 59,023 | $ 59,719 | $ 60,600
Cash and Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 2,172 | 1,545 |
Government Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 8,623 | 8,592 |
Corporate Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 14,941 | 15,593 |
Domestic Equities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 26,582 | 20,935 |
Foreign Equities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 6,705 | 13,054 |
Level 1 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 35,459 | 35,534 |
Level 1 [Member] | Cash and Cash Equivalents [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 2,172 | 1,545 |
Level 1 [Member] | Domestic Equities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 26,582 | 20,935 |
Level 1 [Member] | Foreign Equities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 6,705 | 13,054 |
Level 2 [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 23,564 | 24,185 |
Level 2 [Member] | Government Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | 8,623 | 8,592 |
Level 2 [Member] | Corporate Bonds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Fair Value Measurements | $ 14,941 | $ 15,593 |

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