Goodwill and Intangible Assets (Details) - USD ($)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Gain (Loss) on Disposition of Business	$ 0	$ 0	$ (176,000)
Gain (Loss) on Disposition of Property Plant Equipment			0
Goodwill, Impaired, Accumulated Impairment Loss	113,174,000	113,174,000
Goodwill [Roll Forward]
Opening Balance	331,176,000	319,679,000
Acquisition of Hebetechnik (See Note 3)	(10,684,000)	11,497,000
Closing Balance	648,849,000	331,176,000	319,679,000
Gross Carrying  Amount	491,590,000	292,783,000
Indefinite-lived trademark	46,721,000	47,857,000
Accumulated Amortization	(100,802,000)	(79,421,000)
Net	390,788,000	213,362,000
Amortization of intangibles	25,283,000	12,623,000	$ 12,942,000
Dorner
Goodwill [Roll Forward]
Closing Balance	287,141,000
Garvey
Goodwill [Roll Forward]
Closing Balance	41,216,000
Trademark
Goodwill [Roll Forward]
Gross Carrying  Amount	19,529,000	6,377,000
Accumulated Amortization	(5,032,000)	(4,760,000)
Net	14,497,000	1,617,000
Customer relationships
Goodwill [Roll Forward]
Gross Carrying  Amount	325,431,000	188,447,000
Accumulated Amortization	(71,202,000)	(55,785,000)
Net	254,229,000	132,662,000
Acquired technology
Goodwill [Roll Forward]
Gross Carrying  Amount	96,433,000	46,843,000
Accumulated Amortization	(21,789,000)	(16,021,000)
Net	74,644,000	30,822,000
Other
Goodwill [Roll Forward]
Gross Carrying  Amount	3,476,000	3,259,000
Accumulated Amortization	(2,779,000)	(2,855,000)
Net	$ 697,000	$ 404,000