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Revenue Recognition (Details) - USD ($)	3 Months Ended								12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Contract with Customer, Asset, Net, Current	$ 2,361,000								$ 2,361,000
Revenue from Contract with Customer, Excluding Assessed Tax	189,486,000	$ 199,355,000	$ 207,609,000	$ 212,712,000	$ 216,733,000	$ 217,415,000	$ 217,142,000	$ 224,992,000	809,162,000	$ 876,282,000	$ 839,419,000
Contract with Customer, Liability, Current	$ 10,796,000				$ 11,501,000				10,796,000	11,501,000	$ 15,909,000
Proceeds from Customers for Progress Payments									36,058,000	39,868,000
Contract with Customer, Liability, Revenue Recognized									(11,501,000)	(15,909,000)
Increase (Decrease) in Deferred Revenue and Customer Advances and Deposits									(225,000)	(981,000)
Other Income [Member]
Contract with Customer, Liability, Revenue Recognized									(25,037,000)	(27,247,000)
Crane Solutions [Member]
Revenue from Contract with Customer, Excluding Assessed Tax									371,974,000	374,249,000
Engineered Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax									83,977,000	82,222,000
All other [Member]
Revenue from Contract with Customer, Excluding Assessed Tax									56,000	34,172,000
Industrial Products [Member]
Revenue from Contract with Customer, Excluding Assessed Tax									$ 353,155,000	385,639,000
All other [Member] | Other Income [Member]
Contract with Customer, Liability, Revenue Recognized										$ (139,000)

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

+ References

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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The increase (decrease) during the reporting period in the amount of (a) prepayments by customers for goods or services to be provided at a later date, (b) the amount of customer money held in customer accounts, including security deposits, collateral for current or future transactions, initial payment of the cost of an acquisition or for the right to enter into a contract or agreement, (c) the increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting services yet to be performed by the reporting entity for which cash or other forms of consideration was received or recorded as a receivable, or (d) some combination of (a), (b), and (c).

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- Definition

Cash received from customers as progress payments on projects that have been partially completed.

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