Revenue Recognition (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019	Mar. 31, 2018
Contract with Customer, Asset, Net, Current	$ 905,000		$ 905,000
Revenue from Contract with Customer, Excluding Assessed Tax	207,609,000	$ 217,142,000	420,321,000	$ 442,134,000
Contract with Customer, Liability, Current	13,630,000	17,077,000	13,630,000	17,077,000	$ 11,501,000	$ 15,909,000
Proceeds from Customers for Progress Payments			19,596,000	23,111,000
Contract with Customer, Liability, Revenue Recognized			(17,141,000)	(21,013,000)
Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits			$ (326,000)	(930,000)
Revenue, Performance Obligation, Description of Payment Terms			30-60
Crane Solutions [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	96,597,000	89,640,000	$ 195,240,000	187,142,000
Industrial Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	89,902,000	97,810,000	183,392,000	196,519,000
Engineered Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	21,101,000	20,464,000	41,661,000	38,147,000
All other [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 9,000	$ 9,228,000	$ 28,000	$ 20,326,000
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