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Loss Contingencies (Narratives) (Details)			3 Months Ended		12 Months Ended
	Aug. 02, 2012 USD ($)	Aug. 02, 2012 EUR (€)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2020 EUR (€)
Loss Contingencies [Line Items]
Loss Contingency Accrual			$ 12,660,000
Estimation of asbestos-related aggregate liability that is probable and estimable			5,417,000
Insurance Recoveries			290,000	$ 484,000
Estimation of product-related aggregate liability			6,301,000
Loss Contingency Alleged Taxes Owed	$ 7,600,000	€ 6,700,000
Loss Contingency Alleged Taxes Owed Including Penalties And Interest	$ 3,200,000	€ 2,800,000
Accrual for Environmental Loss Contingencies			881,000
Estimated Litigation Liability			100,000
Minimum [Member]
Loss Contingencies [Line Items]
Product Liability Contingency, Third Party Recovery			2,000,000
Estimation of asbestos-related aggregate liability that is probable and estimable			4,100,000
Maximum [Member]
Loss Contingencies [Line Items]
Product Liability Contingency, Third Party Recovery			6,000,000
Estimation of asbestos-related aggregate liability that is probable and estimable			8,000,000
Magnetek [Member]
Loss Contingencies [Line Items]
Estimation of asbestos-related aggregate liability that is probable and estimable			864,000
Accrual for Environmental Loss Contingencies			550,000
Fiscal year 2004 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Product Liability Contingency, Third Party Recovery			3,000,000
Fiscal year 2003 [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Product Liability Contingency, Third Party Recovery			2,000,000
Other Noncurrent Liabilities [Member]
Loss Contingencies [Line Items]
Loss Contingency Accrual			9,083,000
Accrued Liabilities
Loss Contingencies [Line Items]
Loss Contingency Accrual, Product Liability, Gross			3,577,000
Scenario, Forecast [Member]
Loss Contingencies [Line Items]
Asbestos liability payments					$ 2,000,000
Loss settlement gross period					12 months	12 months
Loss Contingency Alleged Taxes Owed					$ 2,200,000	€ 1,900,000
Loss Contingency Alleged Taxes Owed Including Penalties And Interest					$ 3,000,000	€ 2,600,000
Scenario, Forecast [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Loss contingency period					37 years	37 years
DEP [Member] | Magnetek [Member]
Loss Contingencies [Line Items]
Accrual for Environmental Loss Contingencies			$ 428,000

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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