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Restructuring and Related Charges and Asset Impairment Charges - Restructuring and Related Charges Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 40,400	$ 83,300	$ 16,900
Gain (Loss) on Sale of Properties			(4,800)
Restructuring Charges	29,600	69,200	19,500
Restructuring Charges Related to Inventory Disposals	500	900	700
Restructuring reserve, current	19,851	34,910
Restructuring Reserve, Noncurrent	9,900	12,500
Metal Cutting [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	35,600
Restructuring Charges	29,581	69,174
Restructuring Reserve	29,723	47,366	19,212
Infrastructure [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	4,800
FY20 Restructuring Actions [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	54,800
FY20 Restructuring Actions [Member] | Metal Cutting [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	46,600
FY20 Restructuring Actions [Member] | Infrastructure [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	8,300
FY21 Restructuring Actions [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	82,200
FY21 Restructuring Actions [Member] | Minimum [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		90,000
FY21 Restructuring Actions [Member] | Metal Cutting [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	74,500
FY21 Restructuring Actions [Member] | Infrastructure [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	7,700
Cost of Sales [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring Related Charges	$ 10,800	$ 14,100	1,800
Operating Expense [Member]
Restructuring and Related Costs and Reserve [Line Items]
Restructuring Related Charges			$ 300

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Amount of costs incurred to date for the specified restructuring cost.

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Amount expected to be recognized in earnings for the specified restructuring cost.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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