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Accounting Principles and Practices - Narrative (Details) |  | 12 Months Ended
--- | --- | ---
Feb. 28, 2025 USD ($) reportingUnit | Mar. 31, 2025 USD ($) segment agreement reportingUnit | Mar. 31, 2024 USD ($) reportingUnit | Mar. 31, 2023 USD ($)
Accounting Policies [Line Items] |  |  |  |
Advertising expenses |  | $ 3,629,000 | $ 2,659,000 | $ 2,342,000
Number of reportable segments | segment |  | 1 |  |
Number of reporting units | reportingUnit | 3 | 3 | 3 |
Goodwill, discounted cash flows, measurement input period |  | 7 years |  |
Other asset impairment charges |  | $ 0 |  |
Estimated useful life of intangible assets |  | 16 years |  |
Percentage of LIFO inventory |  | 41.00% | 40.00% |
Custom engineered products and services, standard contract duration |  | 3 months |  |
Custom engineered products and services, contract duration |  | 1 year |  |
Standard warranty period |  | 12 months |  |
Trademark |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful life of intangible assets |  | 13 years |  |
Impairment of intangible assets, indefinite-lived | $ 0 |  |  |
Minimum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Goodwill, discounted cash flows, measurement input period |  | 5 years |  |
Estimated useful life of intangible assets |  | 1 year |  |
Standard warranty period |  | 12 months |  |
Standard custom warranty period |  | 24 months |  |
Minimum | Building and building equipment |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives of property plant and equipment |  | 15 years |  |
Minimum | Machinery and Equipment |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives of property plant and equipment |  | 3 years |  |
Maximum |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Goodwill, discounted cash flows, measurement input period |  | 7 years |  |
Estimated useful life of intangible assets |  | 25 years |  |
Standard custom warranty period |  | 36 months |  |
Maximum | Building and building equipment |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives of property plant and equipment |  | 40 years |  |
Maximum | Machinery and Equipment |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Estimated useful lives of property plant and equipment |  | 18 years |  |
Workforce Subject to Collective Bargaining Arrangements | Unionized Employees Concentration Risk |  |  |  |
Accounting Policies [Line Items] |  |  |  |
Concentration risk, percentage |  | 3.70% |  |
Number of collective bargaining agreements | agreement |  | 1 |  |

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