Segment Data - Geographic Sales Information (Details) $ in Thousands	12 Months Ended
Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
External Sales and Long-Lived Assets [Line Items]
Number of countries in Other	27
Sales from Other country did not exceed	2.00%
Property, Plant and Equipment, Net	$ 1,055,135	$ 1,038,271	$ 934,900
External Sales [Abstract]
Sales	1,841,441	1,885,305	2,375,234
Total Long-Lived Assets [Abstract]
Long-Lived Assets	$ 1,055,135	$ 1,038,271	$ 934,895
Americas [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	45.00%	49.00%	50.00%
UNITED STATES
External Sales [Abstract]
Sales	$ 692,106	$ 778,054	$ 1,014,189
Total Long-Lived Assets [Abstract]
Long-Lived Assets	611,724	607,222	525,713
GERMANY
External Sales [Abstract]
Sales	260,792	248,796	314,035
Total Long-Lived Assets [Abstract]
Long-Lived Assets	218,250	210,674	201,714
CHINA
External Sales [Abstract]
Sales	242,815	214,364	247,858
Total Long-Lived Assets [Abstract]
Long-Lived Assets	97,404	92,658	78,410
INDIA
External Sales [Abstract]
Sales	94,966	81,366	113,287
Total Long-Lived Assets [Abstract]
Long-Lived Assets	44,504	44,673	44,643
ITALY
External Sales [Abstract]
Sales	59,955	52,699	68,585
CANADA
External Sales [Abstract]
Sales	79,891	90,247	108,261
Total Long-Lived Assets [Abstract]
Long-Lived Assets	19,144	20,508	20,435
FRANCE
External Sales [Abstract]
Sales	45,356	45,817	59,899
UNITED KINGDOM
External Sales [Abstract]
Sales	28,464	33,305	44,384
ISRAEL
Total Long-Lived Assets [Abstract]
Long-Lived Assets	21,790	22,249	24,042
Other
External Sales [Abstract]
Sales	337,096	340,657	404,736
Total Long-Lived Assets [Abstract]
Long-Lived Assets	$ 42,319	$ 40,287	$ 39,938
EMEA [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	31.00%	30.00%	30.00%
Asia Pacific [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	24.00%	21.00%	20.00%
Metal Cutting [Member]
External Sales [Abstract]
Sales	$ 1,150,746	$ 1,178,053	$ 1,472,021
Metal Cutting [Member] \| Americas [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	38.00%	42.00%	41.00%
Metal Cutting [Member] \| EMEA [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	39.00%	37.00%	38.00%
Metal Cutting [Member] \| Asia Pacific [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	23.00%	21.00%	21.00%
Infrastructure [Member]
External Sales [Abstract]
Sales	$ 690,695	$ 707,252	$ 903,213
Infrastructure [Member] \| Americas [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	57.00%	62.00%	66.00%
Infrastructure [Member] \| EMEA [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	19.00%	18.00%	16.00%
Infrastructure [Member] \| Asia Pacific [Member]
External Sales and Long-Lived Assets [Line Items]
Revenues, percent	24.00%	20.00%	18.00%

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