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Goodwill and Intangible Assets (Narratives) (Details) |  |  | 12 Months Ended
--- | --- | --- | ---
Dec. 01, 2021 | Apr. 07, 2021 | Mar. 31, 2022 USD ($) Reporting_Unit | Mar. 31, 2021 USD ($) Reporting_Unit | Mar. 31, 2020 USD ($)
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Number of reporting units | Reporting_Unit |  |  | 3 | 2 |
Goodwill |  |  | $ 648,849,000 | $ 331,176,000 | $ 319,679,000
2016 |  |  | 26,600,000 |  |
2017 |  |  | 26,600,000 |  |
2018 |  |  | 26,600,000 |  |
2019 |  |  | 26,600,000 |  |
2020 |  |  | $ 26,600,000 |  |
Weighted-average amortization periods | 10 years | 15 years | 17 years |  |
Indefinite-lived trademark |  |  | $ 46,721,000 | 47,857,000 |
Amortization of intangibles |  |  | 25,283,000 | 12,623,000 | 12,942,000
Gain (Loss) on Disposition of Property Plant Equipment |  |  |  |  | $ 0
Goodwill, Impaired, Accumulated Impairment Loss |  |  | $ 113,174,000 | 113,174,000 |
Trademark |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Weighted-average amortization periods |  |  | 14 years |  |
Customer relationships |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Weighted-average amortization periods |  |  | 17 years |  |
Acquired technology |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Weighted-average amortization periods |  |  | 16 years |  |
Other |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Weighted-average amortization periods |  |  | 5 years |  |
Duff Norton Group [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill |  |  | $ 9,699,000 | 9,699,000 |
Rest of Products [Member] |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill |  |  | 310,793,000 | $ 321,477,000 |
Precision Conveyance |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill |  |  | $ 328,357,000 |  |

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