Goodwill and Intangible Assets (Narrative) (Details)	3 Months Ended		6 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) Reporting_Unit	Sep. 30, 2021 USD ($)	Mar. 31, 2022 USD ($)
Goodwill [Line Items]
Number of Reporting Units | Reporting_Unit			3
Amortization of intangibles	$ 6,447,000	$ 6,285,000	$ 12,982,000	$ 12,394,000
Goodwill	627,850,000		627,850,000		$ 648,849,000
Finite-Lived Intangible Assets, Amortization Expense, Year Two	26,000,000		26,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	26,000,000		26,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	26,000,000		26,000,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	26,000,000		$ 26,000,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			17 years
Indefinite-Lived Trademarks	44,558,000		$ 44,558,000		46,721,000
Goodwill, Impaired, Accumulated Impairment Loss	113,174,000		113,174,000
Finite-Lived Intangible Asset, Expected Amortization, Year One	26,000,000		26,000,000
Rest of Products [Member]
Goodwill [Line Items]
Goodwill	290,194,000		290,194,000		310,793,000
Duff Norton Group [Member]
Goodwill [Line Items]
Goodwill	9,699,000		9,699,000		9,699,000
Precision Conveyance
Goodwill [Line Items]
Goodwill	$ 327,957,000		$ 327,957,000		$ 328,357,000
Trademark
Goodwill [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			14 years
Customer relationships
Goodwill [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			17 years
Other Intangible Assets [Member]
Goodwill [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			5 years
Technology-Based Intangible Assets [Member]
Goodwill [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			16 years