Revenue Recognition (Details) - USD ($)	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Contract with Customer, Asset, Net, Current	$ 1,679,000		$ 1,679,000
Revenue from Contract with Customer, Excluding Assessed Tax	199,355,000	$ 217,415,000	619,676,000	$ 659,549,000
Contract with Customer, Liability, Current	12,500,000	11,356,000	12,500,000	11,356,000	$ 11,501,000	$ 15,909,000
Proceeds from Customers for Progress Payments			26,745,000	32,552,000
Contract with Customer, Liability, Revenue Recognized			(25,773,000)	(36,024,000)
Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits			$ 27,000	(1,081,000)
Revenue, Performance Obligation, Description of Payment Terms			30-60
Crane Solutions [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	92,134,000	93,190,000	$ 287,374,000	280,333,000
Industrial Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	84,067,000	91,720,000	267,459,000	288,239,000
Engineered Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	23,134,000	23,512,000	64,795,000	61,659,000
All other [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 20,000	$ 8,993,000	$ 48,000	$ 29,318,000
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