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Goodwill and Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets, Accumulated Amortization			$ 153,972	$ 137,386
Intangible Assets, Gross (Excluding Goodwill)			274,013	269,954
Goodwill and other Intangible Asset Impairment	$ 15,600	$ 14,600		30,227
Goodwill, Impairment Loss				26,819
Goodwill			277,615	270,580	$ 300,011
WIDIA [Member]
Goodwill, Impairment Loss	13,700	13,100
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 1,900	$ 1,500
Metal Cutting [Member]
Goodwill, Impairment Loss				(26,819)
Goodwill			277,615	270,580	$ 300,011
Technology-Based and other [Member]
Finite-Lived Intangible Assets, Gross			33,632	32,713
Finite-Lived Intangible Assets, Accumulated Amortization			$ 24,413	22,612
Technology-Based and other [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			4 years
Technology-Based and other [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life			20 years
Customer Relationships [Member]
Finite-Lived Intangible Assets, Gross			$ 183,338	181,408
Finite-Lived Intangible Assets, Accumulated Amortization			$ 98,901	88,112
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			10 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life			21 years
Unpatented Technology [Member]
Finite-Lived Intangible Assets, Gross			$ 31,957	31,586
Finite-Lived Intangible Assets, Accumulated Amortization			$ 20,575	17,890
Unpatented Technology [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			10 years
Unpatented Technology [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life			30 years
Trademarks [Member]
Finite-Lived Intangible Assets, Gross			$ 13,268	13,087
Finite-Lived Intangible Assets, Accumulated Amortization			$ 10,083	8,772
Trademarks [Member] | Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			5 years
Trademarks [Member] | Maximum [Member]
Finite-Lived Intangible Asset, Useful Life			20 years
Trademarks [Member]
Indefinite-lived Intangible Assets (Excluding Goodwill)			$ 11,818	$ 11,160

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Publisher FASB
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

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