Revenue Recognition (Details)		12 Months Ended
		Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)
Contract with Customer, Asset, Net, Current		$ 2,944,000	$ 2,410,000
Revenue from Contract with Customer, Excluding Assessed Tax		936,240,000	906,555,000	$ 649,642,000
Contract with Customer, Liability, Current		27,003,000	22,453,000	15,373,000
Proceeds from Customers for Progress Payments		67,721,000	51,850,000
Contract with Customer, Liability, Revenue Recognized		(22,453,000)	(15,373,000)
Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination		0	14,750,000
Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits		274,000	(578,000)
Accounts Receivable, Allowance for Credit Loss, Current		3,620,000	5,717,000	5,686,000
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense		1,132,000	2,171,000	2,495,000
Deductions		(3,056,000)	(1,955,000)	(1,973,000)
Charged to Other Accounts		(342,000)	(85,000)	(175,000)
Revenue, Remaining Performance Obligation, Amount		$ 14,524,000
Revenue, Remaining Performance Obligation, Percentage		31.00%
Standard Product Contract Terms, Minimum		30
Standard Product Contract Terms, Maximum		60
Operating Income (Loss)
Lease, Cost		$ 1,001,000	984,000
Accrued Liabilities | Foreign Exchange Contract [Member] | Derivatives Designated as Hedging Instruments
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		39,000	217,000
Accrued Liabilities | Interest Rate Swap [Member] | Derivatives Designated as Hedging Instruments
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		(387,000)	(1,371,000)
Accrued Liabilities | Currency Swap [Member] | Derivatives Designated as Hedging Instruments
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		0	170,000
Prepaid Expenses and Other Current Assets [Member] | Interest Rate Swap [Member] | Derivatives Designated as Hedging Instruments
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		7,644,000	859,000
Prepaid Expenses and Other Current Assets [Member] | Currency Swap [Member] | Derivatives Designated as Hedging Instruments
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		168,000	0
Prepaid expenses and other | Foreign Exchange Contract [Member] | Derivatives Designated as Hedging Instruments
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		(136,000)	0
Prepaid expenses and other | Interest Rate Swap [Member] | Derivatives Designated as Hedging Instruments
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		3,218,000	4,512,000
Other Noncurrent Liabilities [Member] | Interest Rate Swap [Member] | Derivatives Designated as Hedging Instruments
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		0	(387,000)
Other Noncurrent Liabilities [Member] | Currency Swap [Member] | Derivatives Designated as Hedging Instruments
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		(2,270,000)	(8,543,000)
Allowance for doubtful accounts
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense		1,055,000	1,929,000	2,411,000
Deductions	[1]	(3,056,000)	(1,955,000)	(1,973,000)
Business Combination, Acquired Receivables, Estimated Uncollectible		0	227,000
Charged to Other Accounts		$ (96,000)	(170,000)	(192,000)
Long-term Contract with Customer [Member]
Revenue, Performance Obligation, Description of Warranty		24 to 36
Short-term Contract with Customer [Member]
Revenue, Performance Obligation, Description of Warranty		12
Other Income [Member]
Contract with Customer, Liability, Revenue Recognized		$ (40,444,000)	(43,569,000)
Engineered Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		89,963,000	87,604,000	79,989,000
All other [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		119,000	98,000	104,000
Crane Solutions [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		366,277,000	339,400,000	298,135,000
Industrial Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax		330,295,000	334,866,000	271,414,000
Precision Conveyor Products
Revenue from Contract with Customer, Excluding Assessed Tax		$ 149,586,000	$ 144,587,000	$ 0

[1] SCHEDULE II—Valuation and qualifying accounts March 31, 2023, 2022, and 2021 Dollars in thousands   Additions          Description Balance at
Beginning
of Period Charged to Costs and Expenses Charged
to Other
AccountsAcquisition/DivestitureDeductions Balance
at End of
Period Year ended March 31, 2023:        Deducted from asset accounts:       Allowance for doubtful accounts$5,717 $1,055 $(96)$— $3,056 (1)$3,620 Deferred tax asset valuation allowance16,147 77 (246)— —  15,978 Total$21,864 $1,132 $(342)$— $3,056  $19,598 Reserves on balance sheet:      Accrued general and product liability costs, net of insurance recoveries$13,414 $3,025 $— $— $3,608 (2)$12,831  Year ended March 31, 2022:        Deducted from asset accounts:       Allowance for doubtful accounts$5,686 $1,929 $(170)$227 $1,955 (1)$5,717 Deferred tax asset valuation allowance15,103 242 255 547 —  16,147 Total$20,789 $2,171 $85 $774 $1,955  $21,864 Reserves on balance sheet:      Accrued general and product liability costs, net of insurance recoveries$13,175 $6,648 $— $— $6,409 (2)$13,414  Year ended March 31, 2021:        Deducted from asset accounts:       Allowance for doubtful accounts$5,056 $2,411 $192 $— $1,973 (1)$5,686 Deferred tax asset valuation allowance15,036 84 (17)— —  15,103 Total$20,092 $2,495 $175 $— $1,973  $20,789 Reserves on balance sheet:      Accrued general and product liability costs, net of insurance recoveries$11,944 $4,634 $— $— $3,403 (2)$13,175    _________________ (1)Uncollectible accounts written off, net of recoveries (2)Insurance claims and expenses paid