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Summary of Signficant Accounting Policies (Details Textual 1) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements			731		912
Goodwill			$ 277,615	$ 270,580	$ 300,011
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
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			295		427
Technology-Based and other [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross			$ 33,632	32,713
Finite-Lived Intangible Assets, Accumulated Amortization			$ 24,413	22,612
Technology-Based and other [Member] | Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			20 years
Technology-Based and other [Member] | Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			4 years
Customer-related [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross			$ 183,338	181,408
Finite-Lived Intangible Assets, Accumulated Amortization			$ 98,901	88,112
Customer-related [Member] | Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			21 years
Customer-related [Member] | Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			10 years
Unpatented Technology [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross			$ 31,957	31,586
Finite-Lived Intangible Assets, Accumulated Amortization			$ 20,575	17,890
Unpatented Technology [Member] | Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			30 years
Unpatented Technology [Member] | Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			10 years
Trademarks [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross			$ 13,268	13,087
Finite-Lived Intangible Assets, Accumulated Amortization			$ 10,083	8,772
Trademarks [Member] | Maximum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			20 years
Trademarks [Member] | Minimum [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Asset, Useful Life			5 years
Trademarks [Member]
Business Acquisition [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)			$ 11,818	11,160
Infrastructure [Member]
Business Acquisition [Line Items]
Goodwill			0	0	$ 0
Metal Cutting [Member]
Business Acquisition [Line Items]
Goodwill			$ 277,615	$ 270,580	$ 300,011

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