Debt (Narratives) (Details) - USD ($)			12 Months Ended
	Apr. 26, 2023	May 04, 2021	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Line of Credit Facility [Line Items]
New Credit Agreement 2017			$ 545,000,000
Line of Credit Facility, Maximum Borrowing Capacity			100,000,000
Outstanding letters of credit			15,104,000
Payments of financing costs			0	$ 0	$ (826,000)
Carrying amount of the Company's revolving credit facility			462,560,000	502,560,000
Long-term Debt, Current Maturities			40,000,000	40,000,000
Long-term Debt, Excluding Current Maturities			418,052,000	457,135,000
Line of Credit Facility, Fair Value of Amount Outstanding			0
Gross balance of deferred costs			6,323,000
Accumulated amortization balances			1,815,000	898,000
Debt obligations			2,385,000
Amount drawn on unsecured credit lines			0
Debt Instrument, Unamortized Discount, Noncurrent			(4,508,000)	(5,425,000)
Long-term Debt			$ (458,052,000)	(497,135,000)
Long-term Debt, Term			7 years
2023			$ 5,260,000
Line of Credit, Current			100,000,000
Extinguishment of Debt, Amount			$ 0	14,803,000	0
Stock Issued During Period, Shares, New Issues		4,312,500	4,312,500
Common Stock, Par or Stated Value Per Share		$ 48.00
Proceeds from Issuance or Sale of Equity			$ 0	207,000,000	$ 0
Short-term Debt			40,000,000
Finance Lease, Liability, Undiscounted Excess Amount			$ 18,031,000
Lessee, Finance Lease, Term of Contract			23 years
Proceeds from Issuance of Common Stock			$ 207,000,000
Minimum
Line of Credit Facility [Line Items]
Outstanding letters of credit			183,000
Foreign Line of Credit
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			12,933,000
Outstanding borrowings			12,596,000
Long-term Debt
Line of Credit Facility [Line Items]
Secured Long-term Debt, Noncurrent			450,000,000
Line of Credit
Line of Credit Facility [Line Items]
Gross balance of deferred costs			4,027,000
Extinguishment of Debt, Amount				326,000
Debt Issuance Costs, Gross				4,027,000
Bridge Loan
Line of Credit Facility [Line Items]
Extinguishment of Debt, Amount				8,531,000
Secured Debt
Line of Credit Facility [Line Items]
Extinguishment of Debt, Amount				5,946,000
Debt Issuance Costs, Gross				5,432,000
Secured Debt | Loans
Line of Credit Facility [Line Items]
Debt Issuance Costs, Gross				892,000
Standby Letters of Credit
Line of Credit Facility [Line Items]
Outstanding letters of credit			14,921,000
STAHL [Member]
Line of Credit Facility [Line Items]
Secured Debt, Current			5,260,000
STAHL [Member] | Line of Credit
Line of Credit Facility [Line Items]
Secured Long-term Debt, Noncurrent			445,000,000
Debt Issuance Costs, Gross				977,000
STAHL [Member] | New Revolving Credit Facility
Line of Credit Facility [Line Items]
Secured Long-term Debt, Noncurrent			100,000,000
Accumulated amortization balances			1,611,000	805,000
STAHL [Member] | Other Current Liabilities [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Periodic Payment, Principal			40,000,000	22,440,000
Dorner | Line of Credit
Line of Credit Facility [Line Items]
Debt Issuance Costs, Gross				$ 3,050,000
montratec
Line of Credit Facility [Line Items]
Secured Long-term Debt, Noncurrent			$ 50,000,000
montratec | Forecast
Line of Credit Facility [Line Items]
Line of Credit Facility, Increase (Decrease), Net	$ 75,000,000