Acquisitions (Narratives) (Details) - USD ($)			3 Months Ended	4 Months Ended	12 Months Ended
	Dec. 01, 2021	Apr. 07, 2021	Jun. 30, 2022	Mar. 31, 2022	Mar. 31, 2022	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment								$ 0
Revenue from Contract with Customer, Excluding Assessed Tax					$ 906,555,000		$ 649,642,000	809,162,000
Gain (Loss) on Disposition of Business					0		0	(176,000)
Net sales:					$ 906,555,000		649,642,000	809,162,000
Estimated useful life	10 years	15 years			17 years
Line of Credit Facility, Maximum Borrowing Capacity				$ 100,000,000	$ 100,000,000	$ 100,000,000
Long-term Debt				$ 497,135,000	$ 497,135,000	$ 497,135,000	$ 248,954,000
Common Stock, Shares, Issued				28,517,333	28,517,333	28,517,333	23,984,299
Voting common stock: 50,000,000 shares authorized; 28,517,333 and 23,984,299 shares issued and outstanding				$ 285,000	$ 285,000	$ 285,000	$ 240,000
Extinguishment of Debt, Amount					14,803,000		0	0
Gross balance of deferred costs				6,323,000	$ 6,323,000	6,323,000
Stock Issued During Period, Shares, New Issues					4,312,500
Proceeds from Issuance of Common Stock					$ 207,000,000
Operating Income (Loss)					73,781,000		42,255,000	89,824,000
Cost of Goods and Services Sold					590,825,000		429,417,000	525,976,000
Deferred Compensation Arrangement with Individual, Compensation Expense					$ 0	970,000	0	0
Deferred Compensation Arrangement with Individual, Requisite Service Period					45 days
Bridge Loan				650,000,000	$ 650,000,000	650,000,000
Goodwill				648,849,000	648,849,000	648,849,000	331,176,000	319,679,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		$ 481,012,000		67,731,000	67,731,000	67,731,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	$ 907,000	8,058,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets	1,709,000	20,218,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	3,072,000	26,104,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	21,350,000	190,000,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	1,382,000	658,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	(1,905,000)	(896,000)
Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Lease Obligation		(14,582,000)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities		(35,689,000)
Business Acquisition, Pro Forma Revenue							762,955,000
Business Acquisition, Pro Forma Net Income (Loss)							(9,743,000)
Debt Instrument, Increase (Decrease), Other, Net					75,000,000
Proceeds from Sales of Assets, Investing Activities					461,000		5,453,000	0
Dorner
Business Acquisition [Line Items]
Goodwill				287,141,000	287,141,000	287,141,000
Garvey
Business Acquisition [Line Items]
Goodwill				41,216,000	41,216,000	41,216,000
Cost of Goods and Service, Product and Service Benchmark
Business Acquisition [Line Items]
Deferred Compensation Arrangement with Individual, Compensation Expense						521,000
Selling and Marketing Expense [Member]
Business Acquisition [Line Items]
Deferred Compensation Arrangement with Individual, Compensation Expense						350,000
General and Administrative Expense
Business Acquisition [Line Items]
Deferred Compensation Arrangement with Individual, Compensation Expense						74,000
Business Combination, Acquisition Related Costs				376,000
Research and Development Expense
Business Acquisition [Line Items]
Deferred Compensation Arrangement with Individual, Compensation Expense						25,000
Line of Credit
Business Acquisition [Line Items]
Extinguishment of Debt, Amount					326,000
Gross balance of deferred costs				4,027,000	4,027,000	4,027,000	3,615,000
Bridge Loan
Business Acquisition [Line Items]
Extinguishment of Debt, Amount					8,531,000
First Lien Facilities
Business Acquisition [Line Items]
Long-term Debt				750,000,000	750,000,000	750,000,000
Estimate of Fair Value Measurement | Office Building
Business Acquisition [Line Items]
Proceeds from Sale of Buildings							6,363,000
United States
Business Acquisition [Line Items]
Net sales:					548,620,000		348,986,000	450,242,000
Business Exit Costs							(1,797,000)	$ (2,958,000)
Cost of Sales [Member] | FRANCE
Business Acquisition [Line Items]
Business Exit Costs							(815,000)
Selling and Marketing Expense [Member] | FRANCE
Business Acquisition [Line Items]
Business Exit Costs							(94,000)
General and Administrative Expense | FRANCE
Business Acquisition [Line Items]
Business Exit Costs							(327,000)
United States
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment					$ (375,000)
Asia Pacific [Member]
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment							(2,638,000)
Asia Pacific [Member] | General and Administrative Expense
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment							(449,000)
Asia Pacific [Member] | Cost of products sold
Business Acquisition [Line Items]
Gain (Loss) on Disposition of Property Plant Equipment							$ (2,189,000)
Engineered drawings
Business Acquisition [Line Items]
Estimated useful life					5 years
Finite-lived Intangible Assets Acquired				330,000
Customer relationships
Business Acquisition [Line Items]
Estimated useful life					17 years
Customer Receipts
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired				8,200,000		137,000,000
Acquired technology
Business Acquisition [Line Items]
Estimated useful life					16 years
Finite-lived Intangible Assets Acquired						45,000,000
Trade Names
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired						8,000,000
Technology Service
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired				4,670,000
Trademark
Business Acquisition [Line Items]
Estimated useful life					14 years
Finite-lived Intangible Assets Acquired				3,610,000
Patents
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired				2,440,000
Order or Production Backlog
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired				2,100,000
STAHL [Member] | Line of Credit
Business Acquisition [Line Items]
Secured Long-term Debt, Noncurrent				(445,000,000)	$ (445,000,000)	(445,000,000)
STAHL [Member] | New Revolving Credit Facility
Business Acquisition [Line Items]
Secured Long-term Debt, Noncurrent				(100,000,000)	(100,000,000)	(100,000,000)
Dorner
Business Acquisition [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax						132,014,000
Secured Long-term Debt, Noncurrent				(750,000,000)	(750,000,000)	(750,000,000)
Payments to Acquire Businesses, Net of Cash Acquired		$ 481,012,000
Operating Income (Loss)						12,451,000
Severance Costs						218,000
Cost of Goods and Services Sold						2,981,000
Business Acquisition, Goodwill, Expected Tax Deductible Amount				8,000,000	8,000,000	8,000,000
Dorner | Forecast
Business Acquisition [Line Items]
Stock Issued During Period, Value, New Issues			$ 198,705,000
Dorner | Line of Credit
Business Acquisition [Line Items]
Secured Long-term Debt, Noncurrent				(100,000,000)	(100,000,000)	(100,000,000)
Dorner | Bridge Loan
Business Acquisition [Line Items]
Secured Long-term Debt, Noncurrent				(650,000,000)	(650,000,000)	(650,000,000)
Garvey
Business Acquisition [Line Items]
Payments to Acquire Business Two, Net of Cash Acquired	67,731,000
Cash Acquired from Acquisition	$ 907,000
Business Combination, Contingent Consideration, Liability				$ 2,000,000	$ 2,000,000	$ 2,000,000